7/24/2019 SS554_2009 IAQ

1/50

SINGAPO

R

E

S

TA

N

DARD

SS5

5

4:2009

(ICS 13.040.20;91.040.01)

CODEOFP

R

AC

TI

CEFOR

I

n

door

airq

ua

l

i

t

y

for

a

ir-

con

dit

io

n

e

d

bu

i

l

din

gs

(incor

p

orating

Errat

u

m

No.1 , N

o

vem

b

er

2009)

Al

l

r

i

g

h

ts

res

er

v

e

d

.

Unlesso

th

erw

i

se

s

pecifi

ed

,

n

o

part

o

f

t

his

Si

n

gapore

Standard

m

aybereprodu

ce

do

r

utilis

e

dinanyfo

r

mo

r

by

a

nyme

a

ns

,

e

lectr

o

ni

c

or

mechanica

l

,includ

i

ngphotocopyi

n

g

and

m

i

c

rof

i

l

m

in

g,

withou

t

perm is

si

oninw

ri

tingfr

om

SPRIN

G

Sing

a

por

e

atth

e

addr

ess

be

l

ow:

H

e

a

d

S

t

and

a

rdi

s

at ionDepart

m

e

nt

S

PRING Sin

g

a

p

ore

2

Buk it

M

erahCen t

r

a l

S

ingapore 15983

5

T

e

l

e

p

h

o

n

e

:

6

2

7

8

6

6

66

Te

l

e

f

a

x

:

6

2

7

86

6

6

7

Email :stn

@

s

p

r

i

n

g.g

ov

.

s

g

I

SBN978

-

981

-

4278

-

31

-

7

? . . ,;, ...rrr,...

.

.

.

:

7/24/2019 SS554_2009 IAQ

2/50

SS5

54

:20

0

9

Th isSin

ga

p

o

re

S

t

a

n

da

rdw

a

s

appr

o

ved byB

u

il

di

n

g

and

C

o

nst

r

ucti

o

n S

t

an

dar

dsC

om

mi

tte

e

o

n b

e

h

a

l

f

ofthe

StandardsC

o

uncil

o

f

S

ing

a

po

r

e

on 15 Oc

t

o

b

e

r

20

09.

Fi

r

st

p

u

b

l

i

shed

,

2009

The

Buildi

n

ga

n

d

C

ons tructio

n

Standar

d

s

C

om

m

itteeap

p

ointedby t

he

Stand

a

rds

Co

u

ncil consi

s

ts

o

f

t

h

e

fo

ll

ow

i

n

gmembers:

Cha ir

m

a

n

1

st

Deput

y

Cha irm

an

2

n

dD

ep

ut

y

Chai

r

man

S

e

c

r

et

a

ry

Me

m

b

e

rs

C

o

-o

pt

e

d

Member

s

Nam e

MrGo

h

P

e

n

g

Tho

n

g

M

rL

e

e

Ch

uan

Se

n

g

Mr

Tan

T

i

an

C

h

o

ng

MrJames

C

ho

o

SouYon

g

M

r

B

o

o

G

e

o

k

K

w

a

n

g

E

r .Ch

anE

we

J in

Mr

Cha

n

Y

e

w

K

w

o

n

g

M

rPau

l

Fok

MrGo

h

NganHo

ng

Mr

Anse l

m

G

o

n

sa

l

ve

s

M

r

D

es

m

ondHill

M

rBenedi

c

t

L

e

eKh

e

e

C

h

o

n

g

M

s

Andris L

e

ong

As

s

o

c

Pr

o

f

L

e

on

g

E

n

g

Choon

Dr

L

im

L

a

n

Y

u

a

n

M

r

M

cD

o

n

ald

Low

Mr

La

rry

N

g

LyeH

ock

Asso

c

Pr

of

GaryO

n

g

Khi

m

C

hye

Mr

Davis

O

ngWe

e

C

h

oo

n

E

r

.

S

hum

Ch

e

e

H

oon

g

D

r

TanG

u

an

M

r

Ta

n

g

P

e

l

L

u

e

n

Pr

o

fC

h

oo

Yo

oSan

g

D

r

T

a

n

Cha

t

T im

C

a

p

a

c

it

y

Membe

r

,StandardsCouncil

Membe

r,

St

an

d

a

rdsCo

u

nc il

Mem

be

r

,

S

ta

n

d

a

rdsCo

un

cil

SP

RING

Si

n

g

a

pore

S

i

ng

a

p

or

e

C

i

v

il

De

f

e

n

c

e

F

o

r

c

e

Institut

i

o

n

o

f

En

g

i

ne

e

r

s

S

i

ng

a

p

o

r

e

Ministr

y

o

f

M

a

npowe

r

L

andTransport

A

ut

h

ority

Si

n

ga

p

o

re

Ins

tit

u

te

ofSu

r

veyo

r

s

an

d

V

al

u

e

r

s

Nati

o

n

a

lEnvir

o

nme

nt

Agency

S

i

ngaporeCo

nt

ract

o

rs

Associa

t

ion

L

i

m

i

t

e

d

S

in

ga

po

r

e Institut

e

o

f Ar

ch

i

te

c

ts

B

uild

i

n

g

a

n

d

C

o

n

st

r

u

c

tio

n

Au

t

h

o

rity

N

a

n

y

a

n

g

T

e

c

h

n

o

l

o

g

ica

l

U

n

i

v

e

rs

i

t

y

TheAsso

c

iat

i

on

of

P

ropertyand

F

ac

il

it

y

Manag

e

r

s

R

eal

E

s

t

a

t

e

D

e

ve

l

o

pe

rs'

A

ss

o

ci

atio

n

o

f

Singapor

e

Urba

n

Redev

e

l

o

pmen

t

Au

t

hority

Na

t

ionalU

n

iv

e

r

sity

o

fS inga

po

re

SingaporeM

a

nufacturer

s

'F

e

derat

i

o

n

H

o

using&D

e

velo

p

men

t

Bo

ard

As

s

o

ci

a

t

i

on

of

C

o

n

su

l

ting

En

g

i

n

eers,

Singap

o

re

J

T

C

C

o

r

p

o

r

at

i

o

n

Na

t

ion

a

l

U

ni

v

ersi

tyo

f

S

i

ng

a

po

r

e

In

d

ividu

a

l

C

a

p

acity

2

7/24/2019 SS554_2009 IAQ

3/50

S

S

55

4

:2009

Th

e

T

e

c

h

n

ic

al

C

om

mit

tee on

B

ui

lding

Maintena

nc

e a

n

dMan

ag

eme

n

tap

p

oi

nte

d

by

t

h

eBuildin

g

a

nd

Con

s

truc

t

ion

S

tandard

s

Com

m i

tteean

d

respons

i

b

l

e

f

or thepr

e

parationof th

is

s

tand

ar

dconsis

t

sof

r

e

presentat

i

ve

s

fro

m

thef

ol

low

i

n

g

o

r

ganisations:

Cha

i

rman

Dep

uty

Cha ir

man

S

ecr

et

ar

y

M

emb

e

r

s

Nam e

D

r

L

i

m

L

anY

u

a

n

Er.

T

a

n

gPeiL

u

e

n

M

rJamesChooSo

u

Yo

n

g

M

r

A

n

d

rew A a

t

ha r

Mr A

b

d

u

lR

a

s

h

idBin

Ib

r

a

h

im

M

r

C

hueFo

o

kCh

e

e

M

rFa

n

F

o

o

Wha i

Dr

K

an

g

K

okH

i

n

M

r

Kua

S

o

o

Cho

ng

M

r

K

u

a

ng

Kim

Yaw

M

r

L

e

e

W

eeKe

o

ng

M

r

Li

m

C

h

o

n

g

Yo

ng

AssocP

r

of C

h

and

ra

S

ekha

r

Mr Tan

Chee

H

oon

E

r

.

T

a

n Jua

y

P

ah,

Ro

l

a

n

d

Asso

c

Prof

W

o

n

g

Yew

W

a

h

MrYa

n

Kum Seng

C

apa

city

Member

,

Building and

Construction

S

ta

n

da

r

ds

C

om

m

it

t

ee

J

T

C Corp

o

r

a

t

i

o

n

S

PR

IN

G

Sin

g

a

p

o

r

e

T

he

Ass

oci

at

i

o

n

of

Prop

er

t

y

andFa

c

ilit

y

M

anag

e

rs

E

ner

gy

M

a

rk

e

t

Au

t

ho

ri

ty

CN

A

G

r

ou

p

Lt

d

Housin

g

&De

v

elopm

e

n

t

Boar

d

CPGCorp

o

r

at

i

o

n

Pt

e

L

t

d

EM

S

e

rv i

ce

s

P

te

L

t

d

P

ublic

U

tilitiesBoard

Si

n

gap

o

reC i

v

ilD

e

fenceF

o

rce

Bui

l

dinga

n

dCo

n

st

r

uction

Aut

h

o

ri

ty

Na

t

iona

l

Uni

v

ersityo

f

Sin

g

apore

P

ub

l

ic Ut

il

it

i

esBoa rd

In

stitu

t

i

o

n

o

f

E

n

gineers,Singa

p

ore

N

an

y

ang Tec

h

no

l

o

g

ical

U

niversity

S

in

g

apo

r

eInst

i

t

ute

o

f

B

uild

i

ng

L

im

it

ed

C

o

-

o

p

t

e

d

Member

:

Ad

j

u

nc

t

A

ssocP

r

of

Tan

Kia

Ta

n

g

M

in

i

s

t

ryo

fM

anp

o

wer

A

s

a

m

e

nd

e

d

No

v

2

009

TheWor

k

ingGroupappoin

t

edby

t

he

T

e

c

hni

c

alC

o

mm

i

t

t

e

e

t

o

a

ssi

stint

he

p

r

e

para

t

ion

o

f

t

his

standa

rd

compr

i

se

s

t

he

f

o

ll

ow

i

n

gex

p

ert

s

w

h

o

co

n

tr

i

b

u

t

e

i

n

the

i

r

i

n

d

i

v

id

u

al

c

a

pac it

y

:

Co -Convenor

s

M

e

m

b

e

r

s

Name

A

djunct

A

ss

o

cP

r

o

f

T

a

nKiaTan

g

Asso

cP

r

o

f

C

h

an

d

r

aS

e

khar

D

rB

on

gT

et

Y

in

M

r

T

h

o

m

a

s

C

h

an

MrS

im

onCho

ng

D

r

F

o

o

S

w

ee

C

h

e

n

g

Ms LeeS

u

i Fung

E

r

. LeongCheng

We

e

M

r

D

ar

i

onL im

DrOo

i

Pen

g

Lim

M rSumarn iB inSa

r

m in

Asso

cP

ro

f

T

h

a

mK

wo

k

W

a i

MsJennifer Ya

p

3

7/24/2019 SS554_2009 IAQ

4/50

i

:

\

SS

5

54:

200

9

The

o

rganisati

o

ns

i

n

whic

h

theexpe

r

tso

f

theWorkingG

rou

p

a

r

e

inv

o

lved

a

r

e:

Air-c

a

reE

ng

i

n

e

e

ri

ng

(S)P

t

e

L

t

d

A

S

HR

AE

(Singapo

r

e

C

hapter)

Bu

ilding an

d

C

onstr

u

cti

o

n

A

uthorit

y

C

a

pitaLandReta

il

Li

mi

ted

I

n

st

i

tut

io

n ofEngine

e

rs,

S

in

g

a

p

ore

Method

E

ng

i

ne

e

r

ing

Re

L

td

M

icr

o

Fi

ltratio

n

T

echn

ol

o

g

yPteLtd

Mini

s

t

ry

o

fHe

a

lth

Minis

tr

y

o

f

Ma

n

po

we

r

Nat

i

onal

E

nv

i

ron

m

entAgency

Nation

a

lUniversity

o

f

S i

n

gapore

Tem

a

s

e

k

P

o

l

y

t

echnic

4

7/24/2019 SS554_2009 IAQ

5/50

SS

55

4

:

2009

ANN

E

XES

Con

te

n

ts

Pag

e

F

o

reword

CLAUS

ES

1

Scope

,

9

2

N

o

r

ma

t

ive

refer

e

nces

9

3D

e

ini

t

ions

10

4

Gu

i

d

e

l

i

n

es

f

orac

h ie

v

in

g

a

cc

e

pt

a

b

l

e

I

A

Q

1

3

4

.

1

G

e

n

era l

13

4

.2

I

m

pa

ct

of IAQonprodu

ct

ivityand

h

ea lth 13

4

.3D

e

sign

13

4

.

4

Cons

t

ruc

t

ion

1

6

4

.

5

Renova

t

i

o

n

w

ork

17

4

.6

Comm i

s

s

ioning,operat

i

onand

maintenan

c

e 17

4

.

7

I

A

Q

managementprog ramme 17

5Indoo ra irqual

i

typaramete

r

sand

m

ea

s

urement 17

5

.

1 I

A

Q

p

arameters

17

5

.

2

Indoo

r

ai

r

qual

i

tyaud

i

t

18

5

.

3

M

e

as

u

r

e

m

en

t

o

f

i

n

d

o

o

r

a

i

r

q

u

a

l

i

t

y

23

6

Compe

te

nce

of

IAQ personnel

2

3

A

I

AQandwo

r

k

p

roduc ti

v

itya

n

d health

24

B Sourcesand contro lof indoora ircontaminants

2

8

C

E

xp

o

sure

cont

ro l

-

Ve

nt

i

lat

i

on

31

D

So

u

rc

e

co

n

trol-E

m

iss io

n

sfrombuildingm

a

terials

33

E A i

r

fi

lter

c

las

s

if ica

t

io

n

35

F

Mai

n

tena

nce

o

f

ACM

Vsys

tem

s

37

G

IA

Q

management

pr

og

r

amm

e

39

H

I

nfo

r

mat

i

onon

i

n

do

o

r

ai

r

c

o

n

t

am

i

n

a

n

tsa

nd

m

i

cro

-

b

i

ological

a

gents including

gu ide line

s

onmo

u

l

d

remed iatio

n

4

0

ISamplecheck list

f

or

bu ilding inspec

t

io

n

4

4

J

Sa

m

p

le

co

nf

id

e

n

t

i

a l

ques

t

i

on

na

ir

e

f

o

r

b

uild i

n

go

cc

u

p

a

nts

46

5

7/24/2019 SS554_2009 IAQ

6/50

SS

55

4:2

0

0

9

F

o reword

T

h

i

s

S

in

g

a

p

o

r

e

S

t

a

n

d

a

rd

C

o

d

e

o

f

P

r

a

c

ti

c

e

w

a

s

p

r

e

p

a

r

e

d

b

y

th

e

Te

c

h

n

i

c

a

l

C

om

m

it

t

e

e

on

B

u

i

ld

i

n

g

M

ai

nt

e

n

a

nce

a

ndM

a

n

a

ge

m

e

nt

u

n

d

er

t

h

e

d

i

re

c

t

i

o

nof

t

h

eB

u

ilding

a

ndC

o

n

s

tru

cti

o

nS

t

an

d

a

rds

Comm

ittee .

I

n

d

oora

ir

quality

(IAQ)

r

efer

s

tot

h

e

qu

ali

t

y

of

th

e

a

iri

n

si

dean

a

i

r-c

on

di

t

ion

ed

environ

m

ent .

T

he

qua

li

t

yofin

d

oo

r

a

iris

d

etermin

e

d

m

ainlybyth

e

i

n

doo

r t

he

r

m

a

len

v

ir

o

nm

e

n

ta

lco

nd

iti

on

sa

n

dthe

le

v

els

of

indoo

r

ai

r

bo

rne

c

o

n

ta

m

ina

n

ts .

I

t is

o

f con

c

er

n

be

c

au

se

m

ost peopl

e

spend

the

m

a

jor

ity

of

th

e

irt im

e

indo

o

rs .

T

he

thermal en

v

i

r

onmental

c

o

n

ditio

n

s

h

a

v

e

a

g

r

e

a

t impa

c

t o

n

t

he

c

omfo

r

t

a

n

d

wel

l

-bei

n

g

of people .

M

a

ny

i

ndoor air

c

ontam ina

n

ts

arek

n

own

t

oca

u

se

as

t

h

m

a

,aller

g

ic

rea

ct

ion sa

n

d

other r

es

piratory

p

r

ob

l

em

s.

Ma

n

y

il

l

n

esse

s

ar

e

aggravate

d

b

ythes

e

a

i

rco

n

tam

in

a

n

ts .

G

o

o

d

indo

or

a

i

r

q

u

a

l

i

t

y

isan

i

m

p

o

r

t

a

n

t

c

o

m

p

o

n

e

n

t

o

f

a

h

ea

l

t

hy

i

n

d

o

or

e

n

v

i

r

on

m

e

n

t

,w

h

ic

h

c

o

n

t

r

i

b

u

t

e

s

t

o

p

r

o

d

uc

t

i

v

i

t

y

,

c

om for

t

,

an

d

a

s

e

nse o

f

he

a

l

th

a

n

d

we

ll

-

b

e

i

n

g

a

t th

e

wo

rkpl

a

ce

.

P

oo

r

i

nd

oo

r

a

i

r

qua

li

t

y

c

a

us

e

s sick

b

u

il

d

ing

syn

d

rome

a

n

dbu

il

d

in

g

-r

e

la

ted

i

l

ln

e

s

s

w

h

ic

h

a

f

fec

t the h

ea

lt

h

a

n

d

we

ll-

be

ing of

o

cc

u

p

a

n

t

s,

a

nd

c

o

ntributes

t

o

pro

d

uct i

v

i

t

yloss

a

n

d

ab

se

n

tee

ism

a

t

wo

rk

.

T

he pur

p

ose

of

t

hi

s

C

o

de spec

i

f

ies

indoo

r

a

i

rqua

l

ity

th

a

t

wi

ll b

e

accepta

bl

e

to

th

e

majorit

yo

fbu

il

d

i

n

g

occupa

n

ts,

an

dwhi

c

h

wil

l

m inim i

set

he

risk

o

fa

dv

e

r

s

e

healt

h

e

f

f

ect

s

.Th

e

Codeals

o

pro

vid

e

s

in

for

m

at

i

on,adv

i

ce

a

nd

guidanc

e

onme

a

su

r

e

s

to

i

m

p

r

ove

t

h

equ

a

li

t

y

o

fa

i

r

in

a

ir

-co

n

d

it

ion

ed

en

v i

r

o

n

m

ents

.

Th

i

sCod

e

is

intended to

c

ompleme

n

t

S

i

n

ga

p

o

re

Standa

r

d

'Cod

e

o

f

p

r

ac ti

c

e forai

r

-

c

onditionin

g

and

mec

h

anical

ventil

a

tion

i

n

bu

i

ldin

g

s

(

SS

553)

'

.

Th is

C

o

d

e

will

be

use

f

u l

t

obuilding

own

e

r

s ,ma

n

a

g

em

e

n

t

corpo

r

a

t

io

n

s

,

b

ui

l

ding occu

p

an

t

s

,

andt hose

r

e

s

p

onsibl

e

fo

r

des

ig

ni

ng

,

o

pe

rat

i

n

g

and

mai

nt

ai

n

in

g

t

h

ebuildi

ng

e

nv

iro

n

me

n

t ,a

s

w

ell

a

s

o

t

h

e

r

s

involved inservi

c

i

n

g the

v

entil

a

tiona

n

dair

-

c

o

nditio

n

in

g

syste

m

s.

In prepar

i

ngth

is

Code,

referencewa

s

madeto

t

hefo

ll

o

wi

n

g

publ

i

ca t

i

ons:

1

.

ISO 1

68

14

:

2008 B

u

il

d

ing

e

nvir

o

nm

e

n

t

desi

gn

- Ind

o

o

ra

ir qu

a

li

t

y

-Meth

od

s

o

f

ex

p

ressin

g

the

qualit

y

ofindoorairfor

huma

n

occupan

cy

2

.

N

EA

G

uide

l

in

es

for

g

o

od

i

n

d

oo

r

air

q

ua

l

ity

i

n

o

f

fi

ce

premis

es

(1996)

P

e

r

m i

ssion

h

as

be

en

so

ught

fro

m

thefo

l

lo

w

in

g

or

g

a

ni

s

at

i

on/ auth

or

sfo

r

t

h

er

ep

r

oduc

t

i

on

of:

1

.

F igures

A

.2

a

n

d

A

.4

fr

o

mDrDil

i

Sep

p

ane

n

an

dDrWil

l

iam

Fi

s

k

2

.

F

i

gu

r

e

sA

,3

fro

m

D

r

Paw

e

lW

a

rg

o

cki

3

.

Tab

leE

.1

fr

om

th

eNAF

A

Gu

id

e

t

o

A

ir

Fil

t

rat

i

on,4,h

Ed

itio

n

20

0

7,Ad

d

e

n

du

m

7

.

1

*

A

B

r

i

e

f

D

e

sc

r

ipti

onof

t

h

e

A

N

SI/AS

HRAES

ta

n

da

r

d

52

.

2

Te

st

Method '

Ack

n

o

wl

edg

e

m

e

n

t

is

m

a

d

efor

t

h

e

u

seof inf

o

rm

a

tionfr

o

mt

h

e

a

b

o

ve

o

r

g

an

isati

o

n

/

aut

ho

rs.

7

7/24/2019 SS554_2009 IAQ

7/50

7/24/2019 SS554_2009 IAQ

8/50

SS5

5

4:20

0

9

Th

i

s

C

od

e is

e

x

p

e

c

ted

to

b

e

u

s

e

d

b

y

MOM

,

WSH

C

oun

ci

l

,

BCA

and

NE

A

.

O

c

c

up

i

er

s

a

n

d emp

lo

y

er

s

ar

e

en

c

ou

r

aged t

o

use

this

Cod

e

o

f

Pract

ice

to

f

u

lf

i

l

their

generald

ut

ie

s

a

s

s

pe

c

if

ied int

he

Wo

rk

p

l

a

ce

Safet

y

and

H

ea

lt

h

A

ct .

A

t

t

e

n

t

i

o

n

i

sd

r

a

w

n t

o

t

he

p

o

ssi

b

il

i

t

y

t

h

at

s

om

e

o

f

t

h

e

e

l

em

en

ts

o

f

t

his

Sin

g

ap

ore

St

anda

rd

m

ay be

t

he

s

ub

j

e

c

t

o

f

pa

t

e

n

t

r

i

g

h

t

s .

SP

R IN

G

S

ing

a

p

o

r

e

s

h

a

l

l

n

o

t

b

e

he

l

d

r

e

s

p

o

n

s

i

b

l

e

f

o

r

id

e

n

tif

y

in

g

a

ny

o

r

a

l

l

o

f

such

p

ate

n

tr

i

ghts.

N

O

T

E

1

.

SingaporeSt

a

nda

r

ds

ar

e

su

b

jecttoperiod icrev

i

ewt

o

keep

ab reas

t

o

f

technologicalchanges

andnew

techn icaldevel

o

pmen ts.

The changes in

Sing aporeS tanda

r

ds a

r

edo cumen ted

t

hrough the issue

ofeithe r

a

mendm

en

ts or

r

ev

i

s

i

ons

.

2

.

C

o

m

p

l

i

an

c

e

w

i

th

a

S

i

ng

a

p

o

r

e

S

t

a

n

d

a

r

d

d

o

es

no

t

e

x

e

m

p

t

u

s

e

r

s

fr

o

m

l

e

g

a

l

ob

l

i

ga

t

i

on

s

.

8

7/24/2019 SS554_2009 IAQ

9/50

SS 5

54

:2

0

09

Code

o

f

pra

c

tice

f

orindoorairqua

l

it

y

forair-condi

t

i

o

nedbu

i

ld

i

ng

s

1

S

c

o

p

e

T

h

e

Cod

e

appliest

o

allair

-

c

o

n

d

itioned

p

r

e

m

i

s

eswher

e

a

ir

-c

o

n

di

t

ionin

g

isu

s

e

d

i

n

te

rm

itte

nt

ly

or

c

o

nt

inuou

s

l

y

,

w

i

th

th

e

e

xce

ption

o

f

r

e

s

ide

n

tia

l

p

r

e

m

i

s

e

s,

fac to

r

yp

r

odu

ct

ion area

s

, ho

s

pitals

,

p

o

l

ycl

i

n

i

csan

d

l

abo

ra

tor

i

es .

I

t

app li

e

s

t

oall

t

yp

esof

a

ir-c

o

nditioninga

n

d

a

ir-distri

b

uti

o

nsys

t

em

s

.

In se

tti

ng in

d

oor

a

irqua

l

it

y (

I

A

Q)

s

tan

d

ar

d

,

t

h

is

C

ode consid

e

rs

en

v

ironmen

t

a

l f

a

c

tors,wh i

c

h include

t

he

rm

al, ph

y

s

ic

a

l,

che

m

i

c

al

an

d

bio

l

o

g

i

c

a

lf

actors .T

h

e

p

urp

os

e

o

ft

he

s

t

a

nda

rd

is

t

o

s

p

e

c

ify

indo

o

r

a

ir

qu

a

li

ty

th

a

t

w

il l

be a

cce

p

t

a

bl

e

to b

uil

d

i

n

g

o

ccu

pan

ts

and

to

minimis

e

t

he

p

ot

ential

o

f

adv

ers

e hea

lt

h

e

f

fec

ts

.

F

o

r

t

h

e

reco

m

m

e

n

d

e

d

m

i

n

i

m

u

m

ve

nt

il

a

t

i

o

n

r

ate

s

,

t

h

e

Cod

e

s

h

o

u

l

d

b

e

use

d

i

n

c

o

n

j

u

n

c

t

i

o

n

w

i

t

h

t

h

e

S

S

553,whichprov

i

d

es

g

ui

da

n

cef

or

t

h

ed

e

s

i

gn,construct

i

on,

i

nstal

l

a

t

ion,testi

n

g,

co

m

m

i

ss

i

o

nin

g ,

op

e

r

at

i

ona

nd

m

a

i

n

tenan

ceof

air

-c

o

n

d

it

ioni

n

g

an

dmechani

c

a

l

v

en

t

ila

t

i

o

n (

A

CMV

)

sy

st

e

m

.

N

OTE

1-Ne

i

ther

S

S

553

no

r

th

i

s

C

od

e

p

r

esc

r

ib

es spec

i

f

i

c ve

n

ti

l

at

i

on

r

a

t

e

r

equ

i

reme

n

t

s

fo

r

zones t

h

atco

n

ta

i

n

sm

o

ki

n

g

.

ANS

I

/ASH

RA

E62.

1

mayberef

e

rr

ed

toifsmokingz

on

e

s

a

r

e

prese

n

t(s

ee

a

lso4

.

3

.5).

NO

T

E

2

-

M

eeting

t

he

requ

ir

e

m

e

nt

s

ofth

i

sCode

m

i

ghtnotach

ie

ve

t

h

e

a

c

ce

ptab

le

i

ndo

o

r

a

ir

qu

ali

tyfor

e

ve

r

yone

inal

l

air

-

co

n

ditioned

build

in

gs,

d

u

e to oneormoreofthefollo

w

ing

re

a

sons :

(a)

T

h

e

d

iv

e

rsit

y

o

fso

u

rc

esan d

c

on

t

a

m ina

n

ts

in

in

do

orai

r;

(

b

)M

a

n

y

o

t

he

rf

a

c

t

o

r

s

t

h

at

m

a

y

a

ff

e

ct

o

ccup

a

nt

p

e

r

c

ept

i

o

n

an

d a

c

cep

tan

ce

o

f

i

ndo

or

a

i

r

q

u

a

li

t

y,

s

u

ch

a

s

a

ir

tempe

ra

tu

re

,

h

um

idi

ty,

n

o

i

se,

lig

h

t

i

n

g a

n

d

p

syc

h

ol

o

gi

cal

s

t

r

e

s

s;

(c)T

h

ew

i

de

r

ange

o

fs

u

s

c

e

p

tib

i

l

it

y

a

n

dp

re

fe

r

e

n

c

e

s

i

n the

p

o

p

u

la

t

i

on;

(

d)

O

ut

d

oo

r

a

ir

b

r

o

u

g

ht

i

n

t

o

t

h

e

b

u

i

l

d

i

n

g

m

a

y

b

e

un

a

c

ce

p

t

a

b

l

e

o

r

m

ay

n

ot

b

e

ade

q

u

a

t

el

y

c

l

e

a

n

e

d

.

2

Norm

a

tive

r

e

ferences

ThisCo

de

inc

o

rp

o

rates,by

d

at

ed

or

u

n

d

a

t

e

d

re

f

er

e

nc

e

,provisi

o

ns

fr

o

mo

t

h

er

p

u

b

l

ica

t

ions. Th

e

se

n

o

rma

ti

vere

fe

r

e

nc

es

a

recit

e

da

t

the

ap

pr

o

pri

at

e

p

l

a

c

e

si

n

the

t

ex

t

a

ndthe

pu

b

li

cati

o

n

s

a

relist

ed

th

e

r

e

a

fter.

F

or

d

a

ted

r

efe

r

e

nc

e

s

,

subse

que

n

t

a

m

e

n

d

m

e

n

ts

to or

rev i

s

io

n

s of

any

th

e

se

pu

blic

at

i

ons

app

l

yto

t

h

i

s

Code onl

y

w

h

e

n

in

c

or

p

o

ra

ted

i

n

i

t

by

a

m

endme

n

t

or

re

vi

s

ion

.

Forundated

r

efe

r

e

nc

es

th

e

l

a

test

ed

i

t

ion

o

f

the p

u

blica

t

i

o

n

r

e

ferred to

ap

p

lies .

A

N

SI/

A

SH

R

AE

5

5

T

h

ermal

env

ir

onm

en

tal

c

ond

itio

ns

fo

r

h

umanoc

cu

pa

nc

y

A

N

S

I

/

A

SH

R

AE

6

2

.

1

V

e

n

t

i

l

a

t

i

o

n

fo

r

A

c

c

e

p

ta

b

le

I

n

d

o

o

r

A

i

r

Q

u

a

l

i

t

y

ANSI

/

ASHRAE 12

9

Me

a

su

r

ing

a

ir

c

h

ange

e

ff

e

c

t

ive

n

es

s

I

S

O

7730

E

r

gonomi

c

s

o

f

t

h

e t

he

r

ma

l

en

v

i

r

onment-Ana

lyt

i

c

a

l

dete

r

mi

n

a

t

io

n

a

nd

i

n

terp

r

et

a

t

i

o

n

o

f

t

hermal

c

omfo

r

tu

s

ing

c

al

c

u

l

atio

n

of

t

he

PM

V

and

PP

D

i

n

di

c

es

an

d

lo

ca

lth

e

rm

a

l

c

omfo

r

t

c r

iteri

a

I

S

O

1

2569

Thermalpeformanc

e

of bu

il

d

i

ng

s

-

D

e

term

i

nat

i

on ofa

i

rchang

e

i

n

bui

l

di

n

g

s

-

Trace

r

ga

s

d

ilu

t

i

o

n

m

ethod

ISO

1

6000Indoo ra

ir

P

a

r

t

1

:

G

e

n

e

r

a

l

a

s

p

e

c

t

s

o

f

s

a

m

p

l

in

g

s

t

r

a

t

e

g

y

P

a

rt

2:

S

a

mp

l

ing st

r

a

te

gy

f

o

rf

or

maldehyde

9

7/24/2019 SS554_2009 IAQ

10/50

S

S

554

:

2

0

0

9

I

S

O

1

60

17

ISO16

70

2

IS

O1

6

814

S

S

5

53

P

ar

t

3 :

D

e

ter

mina

t

i

o

n

o

fforma

l

de

h

yde

and

ot

h

er

carbony lcompou

n

d

s-

A

ct

ive

sampli

n

gmeth

o

d

Par

t

5:

S

amp

l

ingstrategyfo

r

vo

l

at

il

eorgan

i

ccompound

s (

VOCs)

Par

t

6

:

D

ete

rm

i

n

ati

on

o

f

v

o

l

a

tile

or

g

a

niccomp

o

un

d

s

in i

n

d

oo

r

a

n

d te

s

t

c

h

a

m

be

r

a

i

r

by

a

c

t

i

v

e

s

a

m

p

l

i

n

g

o

n

T

e

n

a

x

T

A

s

o

r

b

e

n

t

,

t

h

e

r

m

a

l

d

e

s

o

r

p

tio

n

a

n

d

gas c

h

r

o

ma

t

o

g

r

a

phyusing

M

S/

FID

Par

t

8

:

De

ter

mina

t

i

on

o

f

loc

al

m

ean

a

g

e

s of

a

ir

i

n

b

u

i

l

d

ingsf

or

ch

a

r

a

c

ter

izing

ventil

a

ti

o

n

c

ond it

i

on

s

Pa

r

t

1

2 :

S

amplin

g

s

t

r

ategyfo

r

po

l

yc

hlo

r

ina te

d

biphe

ny

l

s

(PCBs),

p

o

l

y

ch

l

or

i

n

a

te

d

d

i

b

e

n

zo-p-diox

i

ns

(

P

CDDs)

,

p

o

l

ych

l

or

i

n

ated d

i

be

n

z

o

fura

ns

(PCDF

s

)

an

d

pol

y

c

yc

li

c

a

rom

at

i

ch

ydro

car

bo

n

s(PA

H

s

)

Par

t

1

5:

S

ampli

n

g

strateg

y

forn

i

troge

n

d

i

ox

i

de

(NO2)

In

door,a

m

bient&workp

l

acea

ir

-Sa

m

p

li

ngandana

l

ysi

s

ofvo

l

at

il

eorgan

i

c

co

m

pound

s

by sorbent

tube/

ther

m

aldesorptio

n

/ cap

il

laryga

s

ch

r

omatog

r

aph

y

Work

pl

ace a

i

r

qua

l

ity

-

Deter

m

in

a

t

i

o

n

o

f

t

o

tal

organ

i

cisocyan

a

teg

r

oup

s

i

n

a

ir

u

s

i

ng

1-(

2

-

m

e

tho

xyp

h

enyl)

pi

peraz

in

e

an

d

li

qu

i

d

chrom

a

tog

r

ap

h

y

Bu

il

d

i

ng

en

v

iron

me

n

t

des

i

gn

-

Ind

oor

air

q

u

a

li

ty-

Me

thod

so

f

ex

p

r

e

s

s

i

n

g

t

he

qual

ityof

indoorair

for

human

occupancy

Code

ofp

r

a

c

ti

ce

forai

r

-co

n

d

it

ioningandmec

h

an

ic

al

v

e

nti

lation i

n

building

s

3

D

ef

i

n itio

n

s

F

o

r

t

he

p

u

r

p

os

e

o

f

t

h

is

S

i

n

g

a

p

o

r

e

S

t

a

n

d

a

r

d

,

t

h

e

f

o

ll

o

w

i

n

g

d

e

f

i

n

i

t

i

o

ns

ap

p

ly

:

3

.

1

A

c

c

eptable

IA

Q

A

ir

in

anoccup iedsp

a

cetowardw

h

ichasub

st

ant ia

l

majo

rit

y(8

0

% )o

f

occupants

exp

r

es

s

no

diss

a

t

i

sf

a

c

t

i

on

a

nd

in

wh

i

ch

th

e

r

e

a

r

e

notl

i

k

ely

to

b

e k

n

o

wn

c

o

nt

am in

ants

at

c

o

nc

en

trati

ons

l

ead

i

n

gto

exposure

s

tha

t

pos

e

a

s

i

gni

fi

canthea

l

th

r

i

sk .

3

.

2

Accep

t

ableperceived

IAQ

Ai

r

i

nan

occ

u

p

ied

sp

a

c

e

towa

rdwhi

ch

a

substan

t

ial

maj

ority

(80%)

o

f

occu

p

a

n

t

sexp

r

e

s

s

no

d

i

ssat

i

sfactio

n

onthebas

i

sof

odou

r

andsenso

r

y

i

rr

i

t

a

t

i

on. Accepta

ble

perce

i

v

ed

IAQ

is

n

ec

e

ssa

r

y

but

n

ot sufficient to

me

e

t

t

he

accep

t

ab

le

IA

Q .

3

.

3A

i

rc

h

a

ng

e

rat

e

(

a

i

r

ch

a

ng

e

p

er

ho

ur)

The

a

ir

flow

rat

e

to a spaceexpressed a

s

volum

e

perun

i

tt

im

e d

i

v

i

de

d

b

y

t

he

volu

m

e

ofthe

space

i

n

c

o

n

s

i

ste

n

t un

i

ts.ac.

h

1

.

3

.

4Air

c

hange

e

f

fe

cti

venes

s

Ame

a

su

r

e

of

t

here

la

t

i

o

ns

h

i

p

be

tween

t

h

eco

n

tam

in

a

nt

concent

ra

t

i

on

i

nthe

e

x

ha

us

ta

i

r

and

t

he

c

onta

min

an

t

con

c

ent

ra

tio

n

i

n

t h

e

br

e

a

thin

g

z

o

n

e.

10

7/24/2019 SS554_2009 IAQ

11/50

SS55

4

:

2009

3

.

5

Air-

c

o

n

d iti

o

ni

ng

P

r

o

c

e

s

so

f t

r

e

ating

a

ir

tom

ee t

t

h

e

r

equ

ir

e

m

ent

s

o

f a

c

ondit

i

o

ned

s

pac

e

b

yc

o

nt

r

ol

li

ng it

s

te

mp

er

a

t

u

re,

h

umidity,

c

lea

n

li

n

e

ssanddistribution.

3

.

6

A

i

r

t

e

m

pe

r

a

t

u

r

e

The

d

r

y-bu

l

bte

m

pe

ra

t

u

reoft

he

ai

r

su

r

rou

n

d

ing

t

heoccu

p

a

n

t

3

.

7

B

u

il

ding-

r

e

l

ated

i

lln

e

s

s

A

ny

ill

nes

s

wh

i

c

h

oc

c

ur

s

d

ir

e

ctl

ya

s

a resu

lt

of

h

u

man expos

u

r

e

to

a spec

i

f

ic

hea

l

th haza

r

d

present

i

n

the

bu

il

d

ing .

3

.

8

Co

mpeten

t

pe

r

son

Ap

e

rsonw

ho

is q

u

a

lifiedby

traini

n

ga

n

d

e

x

p

erie

n

ce,

a

n

d

h

a

ss

u

f

f

icientknowl

ed

ge

o

f IAQ,

an

dis

r

e

c

o

g

n

i

s

e

d

by

c

ogn

iz

a

n

t a

u

t

h

o

r

i

t

i

e

s

t

o

p

e

r

f

o

r

m

t

h

e

w

o

r

k

t

o

b

e

carr

ie

d

o

u

t

.

3

.

9

Airb

o

r

nec

o

nta

min

ants)

A

n

un

w

a

n

ted

ai

r

bo

r

ne

c

o

ns

t

ituentthatmayr

e

duce

acc

e

p

tabi

li

t

yo

f

t

he in

d

o

o

r

air

qua li

t

y

.

3

.

1

0

M

i

c

r

obi

a

l

c

ontaminant

(s)

F

u

n

g

al

,

b

a

c

terial

,

or

vi

r

a lo

rg

an

i

sms

,to

xin

sth

ey

p

r

oduc

e ,

or

p

a

r

t

i

cl

e

s

b

earingsuc

h

organ

i

smso

r

to

x

i

n

s

t

hatare

a

i

rborneordeposite

d

on

i

ndoo

r

surface

s

an

d

that

can

cause

d

i

sease ,

i

rritat

i

on, a

ll

ergic

re

acti

on.

A

lso

r

e

fe

rr

ed

t

o

as

b

i

o

l

og

ic

al

c

o

nt

am

in

a

nts

o

r

b

i

o

c

o

n

ta

min

a

n

t

s.These

ter

ms

inclu

de

substan

c

ess

u

cha

s

insec

t

an

d

p

et allergens .

3

.

1

1

E

n

c l

o

s

u

r

e

Ani

n

di

v

idual

room

,

sp

a

c

e

or part the

r

eofabl

e

of bei

n

g

i

s

olated ,

eit

h

e

r

pe

r

mane

n

tly

or te

m

porarily,

fro

m

a

d

jace

n

t area

s

by

mea

n

s

of

door

s

o

r

w

i

n

d

o

w

s

o

r

o

t

h

erequivalentbarrie

r

s .

3

.

12Ex

hau

s

t

a

ir

Airremov

e

d

fr

om anenclos

u

r

e

a

n

d

dischar

g

ed

into

t

he

atmosp

h

e

r

e.

3

.

1

3E

n

vi

ro

n

menta

l

tob

a

cc

o

smo

ke

(

E

T

S)

M

i

xtureofage

d

an

d

exha

l

e

d

ma

i

ns trea

m

ands

i

des t

r

ea

m

s

m

ok

e

produce

d

fro

mt

heburn

i

n

g

of

t

ob

a

cco s

u

bs

t

a

nce

.

3

.

14

Ind

o

or

a

i

r

Ai

r

i

n

sid

e

a

building

,

in

cl

ud

i

n

g

a

i

rw

hi

ch

is

w

ith

i

n

a

ro

om

a

n

d

ai

r

whi

c

h

is

rem

ov

ed

fr

o

m

a

ro

o

m

b

y

m

ech

a

n

i

ca l

m

e

an

s

.

3

.

1

5

I

n

f

i

ltrationa ir

Un

c

on

tr

olled pa

ss

age

o

f

airi

n

t

o

aspa

ce

t

h

r

ough leakag

e

pa

t

hs in

thebuildi

n

ge

nv

elo

p

e .

3

.

1

6Hu

m

id ity

,

re lat

i

ve

T

hema

s

sofwat

e

r

v

apouri

n

t

heai

r

b

y

v

olu

me

d

ivi

dedby

m

ass

of

w

ater

v

a

p

ou

r

b

y

v

olumeat

s

a

t

u

r

a

t

ion

a

tth

es

am

e

tempe

r

a

t

u

r

e

.

1 1

7/24/2019 SS554_2009 IAQ

12/50

SS

5

5

4

:

20

09

3

.

17

ACMVsystem

s

Refer

s

t

o

thea

i

r-condit

i

onin

g

an

d

me

c

han

i

c

al

v

e

n

t

il

a

t

io

n

s

y

s

te

m

ofthe

bu

il

ding .

3

.

18Lo

c

a

l

exhau

s

t

E

x

t

r

ac t

i

o

n

ofobject

i

o

n

abl

e

o

r

h

aza

r

dou

s

c

o

n

ta

m

i

n

a

n

t

s

c

lo

s

e t

o

th

e

s

ou

rc

e

fo

r

sa

f

e

d

i

s

c

ha

r

g

e

t

o

the

external

at

m

o

sphere.

3

.

1

9O

ccupie

d

zone

Th

e

regio

n

no

r

mall

y

o

cc

upie

d b

y

pe

rso

ns

w

it

h

i

n

a

sp

a

c

e

,

gene

r

all

y

cons

i

de

r

ed

to

be

bet

w

e

en

t

h

e

floo

r

an

d1.

8

mabo

ve

t

h

e

fl

oo

r

,an

d

mo

re

t

ha

n

0 .

6m

f

r

om

t

h

e

wa

i

ls

.

3

.

20O

d

ou

r

Aqua

l

ityof

gas

es

,

l

iqu

ids

,o

r

p

ati

c

l

e

s

th

a

t

st

im

ulat

es

t

heo

l

f

a

cto

r

yo

r

gan.

3

.

2

1

O

utdoo

r

a ir

Amb

i

ent a

i

renter

i

n

g

thesyste

m

or

o

p

eningf

r

o

m

outdoor

s

beforea

n

ya

ir

t

r

ea

t

men

t

.

3

.

22

Outdoo ra

i

r

i

nt

a

ke

Anyo

p

en

ing

throug

h

w

h

i

c

h

outd

o

ora

i

ri

sa

d

m

i

t

ted.

3

.

23

Pr

e

dict

ed

me

an

vo

t

e

(

P

M

V)

A

n

index

t

ha

tpred

i

ct

s

t

h

e

m

ea

n

va

lue

o

f

t

he

vo

t

e

s

o

f

a

la

r

ge

gro

up

of

p

e

r

sons

o

nt

he 7-

p

o

i

nt

th

erm

a

l

sens

a

ti

o

nsc

a

le (s

e

e ISO

7730

) ,

b

asedo

n

theh

e

at

ba

l

anc

eoft

h

e

hu

m

an

b

o

dy.

3

.

24

Pr

edi

ct

ed

p

e

r

c

entaged

i

s

sa

t

isfie

d

(

P

P

D

)

An

in

d

e

x t

ha

t

e

s

t

a

b

l

ishes

a

quan

t

i

t

ative

p

r

e

d

i

c

tio

n

o

f

the

per

ce

nt

ag

e of

the

r

m

a

lly

d

issatis

f

i

ed

pe

o

ple

w

hofeeltoo

co

l

d

o

r

too

w

ar

m

(

see

I

SO7730).

3

.

2

5

R

e

-ci

r

c

u

l

a

t

e

d

a

i

r

Enclosu

r

ea

i

r

thatpas

s

e

s

th

r

oug

h

a

l

ocala

i

rc

l

ean

i

ng unitan

d

r

eturn

s

to

t

h

e

sam

e

o

r

otherenc

l

osures.

3

.

2

6

Sickbuildingsyndrome

An

e

x

ce

s

s

of

work-re

l

ate

d

irri

tat

io

n

s

o

f

th

e

s

k

i

n

an

d

m

uc

ou

s

me

m

b

r

an

es

a

n

d

o

the

rsy

m

pt

om

s

(

i

n

c

l

u

d

i

n

g

h

ea

da

c

he

a

nd

f

a

t

i

g

u

e

)

r

e

p

o

r

t

e

d

b

y

occ

u

pa

n

t

s

i

n

m

o

d

e

r

n

o

ff

ic

e

b

u

i

l

d

i

n

g

s

.

3

.

27Sourc

e

Indoorgenerat

i

o

n

f

r

o

m

persons

,

materia

ls

o

r

p

rocesse

s

(a

c

t

i

v

it

i

e

s

)fro

m

wh

i

ch

i

ndoora

ir

co

n

tam

i

na

n

ts

arerelea

s

ed.Canal

so

be

a

r

o

u

t

e

ofe

n

tryof

c

o

n

ta

m

ina

n

t

s

f

r

o

m

o

u

tdoorai

r

o

r

s

oil

.

3

.

2

8

S

u

p

p

lyair

Airint

r

oduced i

n

t

o

a

n

en

c

lo

s

u

r

e

by

m

e

ch

ani

c

a

l

o

r

na

t

u

r

a

l

mea

n

s

.

3

.

29Susp

ended

pa

r

t

ic

u

l

a

t

e

matt

e

r

The

m

ass

o

f

p

art

i

c

le

s

s

us

p

en

de

d

in

a

u

n

it vo

lum

e

o

f

ai

r

when

co

ll

ec

t

e

d

b

ya

highv

o

l

u

meair sam

pl

er.

12

7/24/2019 SS554_2009 IAQ

13/50

SS

554

:2

0

0

9

3

.

3

0

M

e

c

h

a

n

ic

a l vent

i

l

a

ti

on

Ventil

a

ti

o

n provi

d

ed

by

m

e

c

ha

nic

a

lly p

owe

r

ed

equ

i

p

me

n

t .

3

.

31

N

at

u

ra

l

v

en

tila

t

io

n

Ve

n

t

ila

tiont

hro

ugh

l

eaka

g

e

pa t

hs(

infi

ltr

a

t

i

o

n

)a

n

d

in

ten

ti

onalo

p

e

nings

(

ve

nt

i

la

t

i

o

n

)

int

he

b

uil

d

ing

e

n

v

e

l

op

e

o

rr

o

o

m

en

cl

osu

rew

h

ichr

e

li

e

s

on

p

r

e

s

su

re

d

if

f

e

r

e

nc

e

swit

h

o

u

t

theaid

o

fpow

e

r

e

dair

m

o

vi

n

g

c

om

p

one

n

ts .

3

.

3

2

The

r

m

a

l

c

om

f

o

rt

Cond itionofmi

n

dderivedf

r

om

sa

t isfactionw ithth

e

therma len

v

i

r

onme

n

t.

The

r

ma lcomfo

r

tisth

e

co

m

b

in

ed

th

ermal effect

o

f

en

vi

ro

nm

ental

p

arameters

i

nc

lu

ding a

i

rte

mp

erature,re

la

t

i

v

e

h

u

m i

dity ,

a

ir

m

o

v

e

m

e

nt,me

an

r

ad

i

a

n

tte

mperat

u

re(

i

x

ed

fa

ct

o

rs)

an

dclot

h

i

n

g

a

ndac tivi

ty

l

e

ve lof

o

cc

u

p

ants

(

var

i

ab

le

factors).

3

.

33

V

en

t

ila

t

i

o

n

T

h

e

p

r

o

c

e

s

s

of

s

up

pl

yi

n

g

o

r

r

e

movi

ng

a

i

r

by

na

t

u

ral

or

me

c

h

a

nic

alm

eans

t

o

o

r

fro

m

a s

p

a

ce fo

r

t

he

pu

rp

o

se

o

f

cont

r

ol

ling

a

i

rcontam

in

an

t l

e

v

e

ls

, h

u

m

i

dity, odo

u

r

s

or

te

mpe

rat

u

r

e

w

it

hi

nt

h

e

s

p

ac

e .

3

.

34

Ventilationrates

A

irflo

w

rate

a

t

w

hi

ch

o

u

td

o

ora

i

re

n

ters

a

buil

d

i

n

g

o

r

en

cl

o

s

ed

s

p

ace .

4 Guidelin

e

sf

o

rachi

e

ving

a

ccept

a

ble IAQ

4

.

1

G

en

er

a l

I

AQ

ma

y

b

e

e

x

pre

s

seda

s

the

e

x

tent

t

o

whi

ch

t

h

e

qualit

y

of

i

n

doo

r

airme

ets

human

r

equi

r

eme

n

ts .

H

uman

s

ha

ve

two ba

si

c

r

equiremen

t

s

fo

r

I

A

Q : th

e

r

i

s

k

of

any

a

d

v

er

s

e hea

lt

h

e

ffe

cts

of

b

r

e

athing the

ai

r

should

b

e

l

owandt he ai

r

sh

ould

be

per

c

e

i

ved

as

a

c

c

eptab

l

ein

r

elat

i

on

to

c

om

f

o

rt

.

N

O

T

E -A

r

ange

of factor

s

no t di

r

e

c

t

ly

re

l

atedt

o

IAQ

su

ch

as

light

i

ng,a

c

ou

s

ti

cs

,so

c

ia

l

psy

c

holog

ic

al fa

c

tors

shou

l

d

b

e

ta

k

e

n

i

nt

o

acc

ou

nt

i

f

I

A

Q

co

m

p

l

a

i

n

t

s

pe

rsis

t

.

4

.

2

Impa

c

tofIA

Q

o

n

produ

cti

v

i

t

y

and

heal

t

h

T

he

r

e

is

ac

lo

se

re

la

t

i

onsh

ip

b

etw

ee

n

p

r

o

ducti

v

ityand IAQ

i

n

a

we

l

l

m

a

n

a

g

e

d

workp

l

ace .

I

t

i

s

ge

ner

a

lly

a

ssume

d

t

ha

t

h

e

al

t

hy

a

nd c

o

m f

o

r

ta

bl

e

e

m

p

loy

e

es

w

o

ul

d

bem

o

re p

r

o

d

uctive at w

or

k

.

The

op

ti

on ofsp

e

cify

i

ngIAQthat

i

s

b

ette

r

than

the

mi

n

i

mum stan

d

a

r

ds

sp

ecified

i

n

th

is

Code

(

wheret

h

ere

i

s

e

v

i

d

e

n

c

e

t

h

at

t

h

is

w

o

u

l

d

en

h

a

n

c

e

p

r

o

d

uc

t

i

v

i

ty)

s

h

ou

l

d

b

e

c

o

n

s

id

e

r

e

d

(

s

e

e

A

n

n

e

x

A

)

.

4

.

3

Design

I

AQ

i

n

a

bu

il

d

in

g

is

th

e

re

s

ult

o

fse

v

e

r

alfactor

s

, not justve

n

t

il

atio

n

rat

e

a

n

d

v

e

n

t

il

at

i

on

c

harac terist

i

cs .

C

o

nsi

d

eration

s

houl

d

al

s

o

be

gi

ve

n

t

o

al

l

the

f

o

llowi

n

g

r

e

leva

nt

e

l

em

e

nt

s(

s

ee

4.3

.1

t

o

4

.

3

.

4)

i

n

th

e

earlystage

s

ofbu

il

din

g

design.

A

b

uilding

,

i

nc

l

ud

i

n

g

it

s

vent

il

at

i

o

n

orai

r

-condition

i

n

g

system,shoul

d

b

e

des

i

gne

d

top

r

ov

i

de

acce

p

tab

l

e

I

A

Qu

n

derno

r

ma

l

opera

tin

g

c

ondition

s.

13

7/24/2019 SS554_2009 IAQ

14/50

S

S

55

4

:2

0

09

4

.

3

.

1Location

o

f

t

he

building

4

.

3

.

1

.

1 E

n

viron

men

t

The

e

n

vir

on

mentwherea

b

uildi

n

g

is

locat

e

d

canhave

a

majorimpact

o

n

th

e

I

A

Q

o

f

t

hebuildin

g

.

S

p

ec

i

a

l

c

o

n

s

i

d

e

r

a

t

i

o

n

m

u

s

t

b

e

t

a

k

e

n

t

o

m

i

n

i

m

i

s

e

th

e

i

m

p

a

ct

.

4

.

3

.

1

.

2

Ou

tdo

o

ra

i

r

q

ua

li

t

y

The

q

u

alityo

f

ou

td

oo

r

a

i

rin

tr

oduc

ed

i

n

to the

bui

l

di

n

g

s

h

o

u

l

d

conf

o

r

m

wi

t

h

t

h

e

r

e

levan

t

USEPAo

r

WH

Oa

m

b

ient

a

irqua

l

it

y

sta

n

d

a

rdsadopt

e

d

by

NEA .W

h

ere

th

is

is

n

o

t

p

o

s

si

b

le,

ap

p

ro

p

ria

t

eair

tre

a

t

m

e

n

t

s

h

oul

d

b

e

c

o

ns

ide

r

e

d.Ou

tdoo

r

ai

rf

il

t

e

r

s

h

a

v

inga

M

i

n

imum

E

f

f

i

c

ie

nc

yRe

p

o

rt

i

n

gValue

(MER

V

)

of 6

or

h

i

g

herr

at

ed i

n

acc

o

rd

a

n

c

e

wi

thAS

HR

A

E

5

2.2,

shou l

d

b

e

installed

t

ocl

e

an

th

e

ou

t

doo ra irbe fo

r

e in

t

rodu

c

ti

on

into

the indoore nv i

r

onm

e

nt .

A

ir

i

n

t

a

k

e

l

ocat

i

on

s

shou

ld

b

e

care

f

u

ll

yse

l

e

ct

e

d

to

op

ti

m

i

s

e

thequa

li

ty o

f

outdoo

r

a

i

r

f

or

the purpose

ofv

e

nt ilation .

A

l

l

o

u

tdo

o

r

a

i

r

i

n

tr

od

uc

e

d

t

o

t

h

e

i

n

d

oo

r

e

n

v

i

r

o

nm

e

n

t

t

h

r

o

u

g

h

t

h

e

A

C

M

V

sys

te

m

sh

ou

l

d

b

e

f

il

t

e

r

e

d

(r

e

fer

t

oA

nn

ex

E).In

t

heev

e

ntof elevate

d

ozone

l

ev

els

in

o

utd

o

or ai

r

,

a

p

p

rop

r

iate

air filtra

t

io

n

t

echniqu

e

t

or

educ

e

the

o

z

on

e

m

a

y

need t

o

b

ec

o

n

s

i

de

r

e

d

.

4

.

3

.

2So

u

rces and c

o

ntro lof in

d

oo ra ir contam in

a

n

t

s

Forso

u

rces

and

contro

l

o

f

ind

o

or

air

c

o

nt

a

minants

,

p

l

e

ase re

f

er

t

oAnn

e

x

B .

4

.

3

.

3V

e

nti latio n

ch

a

racteris

t

ics

T

h

e

purpos

e

of

prov

i

d

i

n

g

ve

n

ti

l

at

i

o

n

is

t

o

d

il

ute i

n

doo

r

contam ina

n

ts s

o

that a

n

acce

p

tab

l

e

i

n

doo

r

a

ir

q

u

alitycan

b

e

m

aintain

e

d.

T

he

r

e

c

o

m

m

e

n

de

d

m

i

n

i

m

u

m

v

e

n

t

ila t i

o

n

r

a

t

e

s

c

a

n

be

fou

n

d

in

S

S

5

5

3

.

In

addit ion t

o

v

e

ntil

a

t

ion

rat

es ,

a i

rc

l

assi

f

icat i

o

n

and

r

ec i

r

cu

l

at ion

c

r

i

t

e

r

i

a

shou

l

db

e

f

o

l

lowe

d

f

or

a

cc

e

pt

ab

le

I

A

Q . It

i

s

al

so

impor

t

a

n

t

to

n

o

tet

h

at

it

is

the occu

p

a

n

t

s

br

eathing

z

o

n

e

wh

i

ch

is

r

eleva

n

t

whenm

i

n

i

mumo

u

tdoora

i

r f low

r

atesa

re

cons ide red

.

I

n

fo

r

ma t iononth

e

ve

n

t i

l

at ion

c

ha

r

acte

r

ist

i

cs

,

w

itht

he

ob

j

e

ctiv

e

of

qua

ntit

a

tivelym

e

a

su

r

in

gt

he

v

en

t

ila

t

ion

p

erfo

rm

a

nce (

such

a

s

outdoo

r

ai

rc

han

g

e

rate

an

d

a

i

rexchangeef

f

ect

i

veness)

w

he

n

necessa

r

y,

is

g

i

ven

i

nAnnex

C.

4

.

3

.

4

Na

tu

r

ean

d

us

e

o

ft

h

e

bui

l

di

n

g

4

.

3

.

4

.

1F lex

i

b

il it

y

T

he des

i

g

n

of the

bu

il

d

i

n

g

and

i

t

s

var

i

ou

s

sy

s

tem

s

shou

l

d

be

f

l

ex

i

bl

e

to

accommodate

m

ino

r

changes

t

o

bu

il

d

i

n

g

u

s

ag

e .

I

t

i

s

r

e

c

o

m

m

e

n

ded

t

h

at

t

h

e

i

m

p

a

c

t

o

n

I

A

Q

b

e

r

e

-

e

va

lua

t

e

d

o

nc

e

t

h

e

b

ui

l

d

in

g

us

e

ha

s

b

ee

n

id

e

nt ifi

e

d .

4

.

3

.

4

.

2

T

yp

e

o

f

bu

i

ld

i

ngma

t

erials

Thebuilding

m

ate

r

ial

s

an

d

t

hein

t

eg

r

it

y

of thebuildinga

rc

hitectu

re

c

an

co

n

tr

ibuteto thequalityo

f

in

doo

r

ai

r

.

A

dd

iti

ona

l car

e

s

h

o

u

ld

b

eexercis

ed

i

n

s

e

l

e

cting

bu

il

d

in

g

m

a

t

e

ri

a

ls (s

e

e

A

n

n

ex

D

)

.

4

.

3

.

4

.

3Bui

l

ding

h

y

g

ien

e

a

ctivities

A

h

ig

h

d

eg

r

e

eo

f

cl

ean

li

n

ess

s

houl

d

a

l

wa

ys

b

e

maint

a

i

n

ed i

n

ab

u

il

d

i

n

gsincep

oo

rlyclean

e

d

f

u

r

n

i

s

h

i

n

g

sc

an

h

a

ve

an

ad

v

e

rseef

fe

ct

on

IAQ.R

e

m

o

v

a

l

o

fc

o

nt

a

m i

n

an

t

st

h

r

o

u

g

h

r

e

gu

l

a

ra

n

d

j

ud

i

c

i

ou

s

c

le

an

inga

ct

i

v

i

t

i

e

s

can

h

ave

a

p

o

s

i

t

i

veef

f

ec

t

o

n

t

he IA

Q

.

14

7/24/2019 SS554_2009 IAQ

15/50

SS

554

:2009

4

.

3

.

4

.

4

A

i

r

t

ight

nes

sa

nd

pres

su

re

d

iffe

re

n

ti

al

s

T

h

eb

u

il

d

in

g

e

n

ve

l

o

p

e

d

esi

g

ns

ho

uld

mi