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HazCom 2012 Hazard Identification Classification, Signal Words & Hazard Statements. Roles. Chemical manufacturers & importers must classify each chemical produced or imported. They must: Determine the appropriate hazard classes & associated hazard categories. - PowerPoint PPT Presentation
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HazCom 2012 Hazard Identification
Classification, Signal Words& Hazard Statements
Chemical manufacturers & importers must classify each chemical produced or imported. They must:• Determine the appropriate hazard classes & associated hazard
categories.• Base determination on evaluation of full range of available
data/evidence on the chemical (no testing required).• Utilize Appendix A for health hazard criteria & Appendix B for
physical hazard criteria.
Employers are not required to classify chemicals unless they choose not to rely on the classification performed by the chemical manufacturer or importer.• Must then have additional data/evidence on chemical to
substantiate different classification, especially lower classification.
Roles
Term used to indicate the intrinsically hazardous properties of chemicals.
Classification comprised of 3 steps:1. Identification of relevant data regarding the hazards of
a chemical;
2. Review of the data to ascertain the hazards associated with the chemical;
3. Determination of whether the chemical will be classified as hazardous and the degree of hazard.
“Hazard Classification”
Hazards divided first into one of three “hazard groups:1. Physical
2. Health
3. Environmental (Not regulated under OSHA, but by EPA)
Each hazard group is comprised of a “hazard class,” such as acute toxicity or carcinogenicity.
Most hazard classes also sub-divided into “hazard categories” to reflect degree of severity of effect.
This concept of “classification” is not only determining if there is a hazardous effect (carcinogenicity), but is also evaluating and ranking the severity of the effect (Category 1 or 2).
Process
Classification of mixtures is performed on a tiered approach.1st Choice
• Classify mixture based on test data available for the complete mixture.
2nd Choice• Use “bridging” principle, which is taking test data for
individual substances &/or ingredients comprising the mixture & use it to classify mixture.
3rd Choice• If no test data exist, & bridging principles won’t work, then
the method(s) described in each chapter of Appendix A of the HazCom 2012 standard for estimating hazards based on known information will be applied to classify the mixture (e.g., application of cut-off values/concentration limits).
Mixtures
Acute Toxicity Skin Corrosion/Irritation Serious Eye Damage/Eye Irritation Respiratory or Skin Sensitization Germ Cell Mutagenicity Carcinogenicity Reproductive Toxicity Specific Target Organ Toxicity – Single Exposure Specific Target Organ Toxicity – Repeated Exposure Aspiration Simple Asphyxiant
• Simple Asphyxiants is not one of 10 health hazards addressed in Appendix A, because not one of harmonized hazard classes in GHS. Since simple asphyxiants already covered under HazCom 1994, and OSHA didn’t want to diminish protections, simple asphyxiants have been addressed separately in final rule, with definition provided in paragraph (c) & required label elements provided in Appendix C.
Health Hazard Classes
Health Hazards CriteriaAppendix A of HazCom 2012
Explosives Flammable Gases Flammable Aerosols Oxidizing Gases Gases under Pressure
Compressed Gas
Liquefied Gas
Refrigerated Liquefied Gas
Dissolved Gas
Flammable Liquids Self-Reactive Chemicals
Pyrophoric Liquids Pyrophoric Solids Self-Heating Chemicals
Chemicals which, in Contact with Water, Emit Flammable Gases
Oxidizing Liquids Oxidizing Solids Organic Peroxides Corrosive to Metals Pyrophoric Gas Combustible Dusts
Physical Hazard Classes
OSHA tried to maintain scope of HazCom 1994 for Physical Hazards in GHS HazCom. Therefore, will notice list also includes pyrophoric gases & combustible dusts.• Definition for pyrophoric gas contained in paragraph (c) & label elements presented in Appendix C.• Combustible dust definition provided in Combustible Dust NEP (Directive CPL 03-000-008). Guidance
on hazard provided using existing documents, including those on OSHA’s webpage. In addition there are number of voluntary consensus standards (NFPA) that address combustible dust.
Physical Hazards CriteriaAppendix B of HazCom 2012
Example of Criteria Information - Simple
Example of Criteria Information - Complex
Example of Criteria Information - Complex
Example of Criteria Information - Complex
Appendix C – Allocation of Label Elements
Appendix C – Allocation of Label Elements
As a result of HazCom 2012 other OSHA Standards required revision to bring them into alignment with content of HazCom 2012.
1910.106 – Flammable & Combustible Liquids1910.107 – Spray Finishing Using Flammable & Combustible
Materials1910.119 – Process Safety Management of Highly Hazardous
Chemicals1910.120 – Hazardous Waste Operations & Emergency
Response1910.123 to 1910.125 – Dipping & Coating Operations
Revisions to Other Standards
1910.106 Revisions
Groups Physical Health
Classes Acute Toxicity Skin Corrosion/Irritation Serious Eye Damage/Eye Irritation Respiratory or Skin Sensitization Germ Cell Mutagenicity Carcinogenicity Reproductive Toxicity Specific Target Organ Toxicity – Single
Exposure Specific Target Organ Toxicity – Repeated
Exposure Aspiration Explosives Flammable Gases Flammable Aerosols Oxidizing Gases Gases under Pressure
Compressed Gas Liquefied Gas Refrigerated Liquefied Gas Dissolved Gas
Flammable Liquids Self-Reactive Chemicals Pyrophoric Liquids Pyrophoric Solids Self-Heating Chemicals
Chemicals which, in Contact with Water, Emit Flammable Gases
Oxidizing Liquids Oxidizing Solids Organic Peroxides Corrosive to Metals Pyrophoric Gas Combustible Dusts
Signal Words Hazard Statement Pictogram Changes to Other Standards
Summary
Flammable liquid – Category 21910.1200 Appendix B – Physical Criteria, section B.6.2Criteria: Flash pt <23°C & initial boiling pt >35°C
1910.1200 Appendix C – Allocation of Label Elements, section C.4.19Signal Word: DangerHazard Statement: Highly flammable liquid & vapor
Pictogram:
Precautionary Statements: Keep away from heat/sparks/open flames/hot surfaces.– No smoking.Others as needed
Exercise
Specific Target Organ Toxicity, Single Exposure – Category 31910.1200 Appendix A – Health Hazard Criteria, section A.8Criteria: Transient target organ effects….
1910.1200 Appendix C – Allocation of Label Elements, section C.4.11Signal Word: WarningHazard Statement: May cause respiratory irritation; or May cause drowsiness or dizziness
Pictogram:
Precautionary Statements: Avoid breathing dust/fume/gas/mist/ vapors/spray.Others as needed
Exercise