REHAB THE LAB

Eliminate the Hazard

John Elias – OHG Consulting

We are here to help you

Step 1 – Eliminate the Hazard

• The first choice in any safety program is to eliminate the hazard.– Find safer materials– As long as a hazardous material is present there is

a risk. Only eliminating the hazard will eliminate the risk

– Wait long enough and the risk will be realized.

Excessive Risk Chemicals - Risk Exceeds Educational Utility

Chemical HazardsAcetic Anhydride Explosive potential, corrosiveAcetyl Chloride Corrosive, dangerous fire risk, reacts

violently with water and alcoholAcrylamide Toxic by absorption, suspected

carcinogenAcrylonitrile Flammable, poisonAdipoyl Chloride Corrosive; absorbs through skin,

lachrymatorAluminum Chloride, anhydrous

Water reactive, corrosive

HIGH RISK CHEMICAL PERMIT

• General Information – Chemical, date, teacher

• List of hazards associated with chemical and what controls will you have for them

• Disposal method for waste and leftover materials

• Signatures

Step 2- Reduce the Hazard

• Reduce the amount of hazardous materials as much as is reasonably practicable.

• There is still a hazard, but because the amount of hazardous materials present is small, the risk will be reduced.

• Select the least hazardous materials that will demonstrate the principle and keep amounts to a minimum.

High Risk Chemicals - Only Allow Very Limited Amounts in Storage

Chemical HazardsAcetamide Carcinogen. P-Listed Extremely

HazardousAmmonium Nitrate Powerful oxidizer, reactiveBarium Peroxide Fire and explosion risk with

organic materials, oxidizer, toxic,

Butyric Acid Corrosive; intense stenchCadmium sulfide Highly toxic, carcinogen

Manitoba SamplesMercury, liquid - Toxic heavy metal, carcinogen

Manitoba SamplesHow much do you need? How long do you keep it?

Manitoba SamplesHow much do you need? How long do you keep it?