16-GHS#

Global Harmonized System of Classification and Labelling of Chemicals (GHS) is a system for standardizing and harmonizing the classification and labelling of chemicals.

Learning Objectives:

  1. Become more familiar with the 9 Hazard Classes of the GHS

  2. Understand the 16 Components of a Safety Data Sheet (SDS)

  3. Understand the elements of GHS Labeling

  4. Be familiar with the GHS Pictograms

  5. Understand the NFPA 704 Diamond

Nine (9) Hazard Classes#

  1. Explosives

  2. Gases

  3. Flammable Liquids

  4. Flammable Solids

  5. Oxidizing Substances

  6. Toxic and Infectious Substances

  7. Radioactive Material

  8. Corrosives

  9. Miscellaneous Dangerous Goods

Explosives#

  • HD1.1: Mass explosion hazard

  • HD1.2: Projection hazard

  • HD1.3: Fire hazard

  • HD1.4: No significant hazard

  • HD1.5: Very insensitive substances

  • HD1.6: Extremely insensitive substances

See Video examples from Safety Management Services, Inc.

Gases#

  • HD2.1: Flammable gases

  • HD2.2: Non-flammable, non-toxic gases

  • HD2.3: Toxic gases

Flammable Liquids#

  • Flammable liquids: flash point < 60°C

  • Combustible liquids: flash point > 60°C and < 93°C

Flammable Solids#

  • HD4.1: Flammable solids

  • HD4.2: Spontaneously combustible

    • Pyrophoric: ignite spontaneously in air

    • Self-heating: heat up in air

  • HD4.3: Dangerous when wet

Oxidizing Substances#

  • HD5.1: Oxidizing substances

  • HD5.2: Organic peroxides

Toxic and Infectious Substances#

  • HD6.1: Poisonous substances

  • HD6.2: Infectious substances

Radioactive Material#

  • HD7: Radioactive material

Corrosives#

  • HD8: Corrosives

Miscellaneous Dangerous Goods#

  • HD9: Miscellaneous dangerous goods

Hazardous Materials Table#

The hazardous materials table is a list of hazardous materials and their proper shipping names, hazard classes, identification numbers, packing groups, and special provisions. The table is in 49 CFR 172.101: 49 CFR 172.101

49 CFR 172.101 has many of the details on shipping and handling of hazardous materials. You are not required to know this for any exam but it may prove valuable to you to know where to find this information.

SDS Components#

  1. Identification

  2. Hazard(s) identification

  3. Composition/information on ingredients

  4. First-aid measures

  5. Fire-fighting measures

  6. Accidental release measures

  7. Handling and storage

  8. Exposure controls/personal protection

  9. Physical and chemical properties

  10. Stability and reactivity

  11. Toxicological information

  12. Ecological information

  13. Disposal considerations

  14. Transport information

  15. Regulatory information

  16. Other information

See also: https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.1200AppD

SDS Examples#

GHS Pictograms#

Source: https://www.osha.gov/sites/default/files/publications/OSHA3491QuickCardPictogram.pdf

GHS Labeling#

GHS Labeling requirements include:

  • Product Identifier

  • Signal Word

  • Hazard Statement

  • Pictograms

  • Precautionary Statement

  • Supplier Information

What would a GHS label for PETN look like?

NFPA 704 Diamond#