Colorado Department of AgricultureInspection and Consumer Services Division

Metrology Laboratory3125 Wyandot Street

Denver, CO 80211-3824

(303) 867-4270 FAX (303) 477-4248www.colorado.qov/ag/ic5

CALIBRATION CERTIFICATE # 14-232A

C O L R A D O

DEPARTMENT OFAGRICULTURE

Customer NameCustomer AddressSubmitted ByCertificate DateCalibration DateCalibration DueSerial Number(s)ManufacturerDescriptionCondition ReceivedProcedure Used

Tensitron, Inc.

733 South Bowen Street, Longmont CO 80501-6302Stan SaxlJune 27, 2014June 20, 2014N/AA through Sunknown

10 Ib Steel hanging weights with hangerGoodNational Institute of Standards and Technology (NIST) NIST1R 6969:2012 SOP 7,Weighing by Single Substitution

Traceability This certificate has been issued under the authority of the Commissioner of the Colorado Department ofAgriculture, Inspection and Consumer Services Division, pursuant to the State of Colorado RevisedStatute Title 35 Article 14. Standards used for comparison are traceable to the International System ofUnits (SI) through standards at NIST, by way of the certificate number above.

Uncertainty The combined standard uncertainty of the measurements is multiplied by the coverage factor k listed inthe table on page 2 (based on available degrees of freedom) to give an expanded uncertainty whichdefines an interval having a level of confidence of 95.45 %. The expanded uncertainty presented in thisreport was calculated according to the BIPM JCGM 100:2008 Evaluation of measurement data - Guide tothe expression of uncertainty in measurement (GUM 1995 with 2010 minor corrections). Uncertaintycomponents evaluated may include, but are not limited to, standard deviation of the process, massstandard uncertainties, the uncertainty for magnitude of the air buoyancy correction and/or for anyuncorrected errors associated with air buoyancy corrections, uncertainties associated with densities of thestandards and test items, and a component to account for any observed deviations from mass standardvalues that are less than surveillance limits.

Magnetism None of the weights used for this calibration have been tested for magnetic properties, and nomagnetism components are included in the uncertainty budget.

Metrologist(s) performing calibration

W.a^c \;v^Diane Wise, MetrologistAuthorized Signatory

Kate Smetana, Metrologist

Environmental Conditions at Time of Calibration

minimum units maximum

Temperature: 20.8

Barometric Pressure: 628.0

Relative Humidity: 46.7

°C

mm Hg

21.0

628.2

50.6

units

°C

mm Hg

Conversion Factors from NIST Special Publication 811:2008, Guide for the Use of the International System of Units (SI)1 pound (avoirdupois) (Ib) = 0.45359237 kilogram (kg)1 ounce (avoirdupois) (oz) = 0.02834952 kilogram (kg)

MS Invoice # 1236

Page 1 of 2This document shall not be reproduced except in full, without written laboratory approval.

The reported values relate only to the item(s) calibrated. MS-45-1 20140508

CO Dept. of Agriculture, Metrology LaboratoryCalibration Certificate # 14-232ATensitron, Inc.Certificate Date: June 27, 2014

ConventionalNominal MassValue(Ib)1010101010101010101010101010101010101010

Correction ToleranceIDABCDEFGHIJKLMN0P

QR

SHanger

g0.0110.117

- 0.024- 0.064

0.0640.1500.0180.0630.1950.1070.1040.249

- 0.1450.034

- 0.0030.1730.2310.0520.172

- 0.620

±g0.450.450.450.450.450.450.450.450.450.450.450.450.450.450.450.450.450.450.450.45

Uncertainty±9

0.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.0210.021

k2.022.022.022.022.022.022.022.022.022.022.022.022.022.022.022.022.022.022.022.02

Supplemental Information:All items were left "as found", except as listed in the "As Found" column. All items were left "as found", no adjustments were made.With the exception of the 10 Ib hanger, the item(s)s were found at time of test, or adjusted, to meet the tolerances stated in NISTHandbook 105-1:1990, Specifications and Tolerances for Reference Standards and Field Standard Weights and Measures (FieldStandard Weights (NIST Class F).

END OF DOCUMENT

Page 2 of 2This document shall not be reproduced except in full, without written laboratory approval.

The reported values relate only to the item(s) calibrated. MS-45-1 20140508

Colorado Department of AgricultureInspection and Consumer Services Division

Metrology Laboratory3125 Wyandot Street

Denver, CO 80211-3824(303) 867-4270 FAX (303) 477-4248

www.colorado.gov/aq/ics—^— —AI—

CALIBRATION CERTIFICATE # 14-232B

COLORADO

DEPARTMENT OFAGRICULTURE

Customer NameCustomer AddressSubmitted ByCertificate DateCalibration DateCalibration DueSerial Number(s)ManufacturerDescriptionCondition ReceivedProcedure Used

Tensitron, Inc.733 South Bowen Street, Longmont CO 80501-6302Stan SaxlJune 27, 2014June 20, 2014N/ASee tableunknown3 Ib through 1 Ib aluminum hanging weights with hangerGoodNational Institute of Standards and Technology (NIST) NISTIR 6969:2012 SOP 7,Weighing by Single Substitution

Traceability This certificate has been issued under the authority of the Commissioner of the Colorado Department ofAgriculture, Inspection and Consumer Services Division, pursuant to the State of Colorado RevisedStatute Title 35 Article 14. Standards used for comparison are traceable to the International System ofUnits (SI) through standards at NIST, by way of the certificate number above.

Uncertainty The combined standard uncertainty of the measurements is multiplied by the coverage factor A-listed inthe table on page 2 (based on available degrees of freedom) to give an expanded uncertainty whichdefines an interval having a level of confidence of 95.45 %. The expanded uncertainty presented in thisreport was calculated according to the BIPM JCGM 100:2008 Evaluation of measurement data - Guide tothe expression of uncertainty in measurement (GUM 1995 with 2010 minor corrections). Uncertaintycomponents evaluated may include, but are not limited to, standard deviation of the process, massstandard uncertainties, the uncertainty for magnitude of the air buoyancy correction and/or for anyuncorrected errors associated with air buoyancy corrections, uncertainties associated with densities of thestandards and test items, and a component to account for any observed deviations from mass standardvalues that are less than surveillance limits.

Magnetism None of the weights used for this calibration have been tested for magnetic properties, and nomagnetism components are included in the uncertainty budget.

Metrologist(s) performing calibration

Diane Wise, MetrologistAuthorized Signatory

Kate Smetana, Metrologist

Environmental Conditions at Time of Calibrationminimum units maximum units

Temperature: 20.8 °C 21.0 °CBarometric Pressure: 628.0 mm Hg 628.2 mm Hg

Relative Humidity: 46.7 % 50.6 %

Conversion Factors from NIST Special Publication 811:2008, Guide for the Use of the International System of Units (SI)1 pound (avoirdupois) (Ib) = 0.45359237 kilogram (kg)1 ounce (avoirdupois) (oz) = 0.02834952 kilogram (kg)

MS Invoice # 1236

Page 1 of 2This document shall not be reproduced except in full, without written laboratory approval.

The reported values relate only to the item(s) calibrated. MS-45-1 20140508

CO Dept. of Agriculture, NCalibration Certificate # ]Tensitron,Certificate

letrology LaborL4-232B

Inc.Date: June 27, 2014

Nominal

atory

ConventionalMass

CorrectionValue As Found As Left(Ib) ID g g

3 3 Ib 0.0232 Hanger -1.2050 0.0597

1.51.511

0.00860.03080.00500.0088

Tolerance

±90.1400.0910.0700.0700.0700.070

Uncertainty

±g0.0110.00450.00250.00250.00250.0025

k2.022.022.022.022.022.02

Supplemental Information:All items were left "as found", except as listed in the "As Found" column. All items were left "as found", no adjustments were made.The item(s)s were found at time of test, or adjusted, to meet the tolerances stated in NIST Handbook 105-1:1990, Specifications andTolerances for Reference Standards and Field Standard Weights and Measures (Field Standard Weights (NIST Class F).

END OF DOCUMENT

Page 2 of 2This document shall not be reproduced except in full, without written laboratory approval.

The reported values relate only to the item(s) calibrated. MS-45-1 20140508

COLORADO

DEPARTMENT OFAGRICULTURE

Customer NameCustomer AddressSubmitted ByCertificate DateCalibration DateCalibration DueSerial Number(s)ManufacturerDescriptionCondition ReceivedProcedure Used

Colorado Department of AgricultureInspection and Consumer Services Division

Metrology Laboratory3125 Wyandot Street

Denver, CO 80211-3824(303) 867-4270 FAX (303) 477-4248

www.colorado.gov/ag/ics

CALIBRATION CERTIFICATE # 14-232C

Tensitron, Inc.733 South Bowen Street, Longmont CO 80501-6302Stan SaxlJune 27, 2014June 20, 2014N/ASee tableunknown2 kg to 5 g hanging weightsGoodNational Institute of Standards and Technology (MIST) NISTIR 6969:2012 SOP 7,Weighing by Single Substitution

Traceability This certificate has been issued under the authority of the Commissioner of the Colorado Department ofAgriculture, Inspection and Consumer Services Division, pursuant to the State of Colorado RevisedStatute Title 35 Article 14. Standards used for comparison are traceable to the International System ofUnits (SI) through standards at NIST, by way of the certificate number above.

Uncertainty The combined standard uncertainty of the measurements is multiplied by the coverage factor A-listed inthe table on page 2 (based on available degrees of freedom) to give an expanded uncertainty whichdefines an interval having a level of confidence of 95.45 %. The expanded uncertainty presented in thisreport was calculated according to the BIPM JCGM 100:2008 Evaluation of measurement data - Guide tothe expression of uncertainty in measurement (GUM 1995 with 2010 minor corrections). Uncertaintycomponents evaluated may include, but are not limited to, standard deviation of the process, massstandard uncertainties, the uncertainty for magnitude of the air buoyancy correction and/or for anyuncorrected errors associated with air buoyancy corrections, uncertainties associated with densities of thestandards and test items, and a component to account for any observed deviations from mass standardvalues that are less than surveillance limits.

Magnetism None of the weights used for this calibration have been tested for magnetic properties, and nomagnetism components are included in the uncertainty budget.

Metrologist(s) performing calibration

C V <>^ — \e Wise, Metrologist

Authorized SignatoryKate Smetana, Metrologist

Environmental Conditions at Time of Calibrationminimum units maximum units

Temperature: 21.0 °C 21.1 °CBarometric Pressure: 628.0 mm Hg 628.0 mm Hg

Relative Humidity: 46.6 % 48.2 %

MS Invoice # 1236

Page 1 of 2This document shall not be reproduced except in full, without written laboratory approval.

The reported values relate only to the item(s) calibrated. MS-45-1 20140508

CO Dept. of Agriculture, Metrology LaboratoryCalibration Certificate # 14-232CTensitron, Inc.Certificate Date: June 27, 2014

NominalValue

920002000150010001000500500250250200

10010010050505010101010

55

ConventionalMass

CorrectionID g

2 KILO 0.0292000 M 0.0031500 N 0.0029B - 0.0661F 0.0085500 U 0.0021500V - 0.0027250 S 0.0075250 T200 W

- 0.00350.0001mg

100 P 5.54100 Q100 R

- 1.926.17

S O X 1.30S O Y50 Z

-0.34- 1.53

1.0540.6850.785

• ••

•

0.3150.1010.350

Tolerance±90.200.200.150.100.100.070.070.050.050.04± mg20202010101022221.51.5

Uncertainty±9

0.0100.0100.00760.00490.00490.00270.00270.00150.00150.0015± mg0.550.550.550.320.320.320.0690.0690.0690.0690.0510.051

k2.022.022.032.032.032.022.022.022.022.03k

2.022.022.022.022.012.012.012.012.012.022.022.02

Supplemental Information:All items were left "as found", except as listed in the "As Found" column. All items were left "as found", no adjustments were made.The item(s)s were found at time of test, or adjusted, to meet the tolerances stated in NIST Handbook 105-1:1990, Specifications andTolerances for Reference Standards and Field Standard Weights and Measures (Field Standard Weights (NIST Class F).

END OF DOCUMENT

Page 2 of 2This document shall not be reproduced except in full, without written laboratory approval.

The reported values relate only to the item(s) calibrated. MS-45-1 20140508