WHMIS (Natural graphite)

Workplace Hazardous Materials Information System

WHMIS 2015 classification - Note to reader

• Combustible dusts - See comments below1 2 3

• Carcinogenicity - Category 1A4

• Specific target organ toxicity - repeated exposure - Category 15

Danger

May cause cancer (H350)
Causes damage to organs through prolonged or repeated exposure (H372)

Ingredient disclosure

Comments:

Classification regarding carcinogenicity (H350) applies to an untested mixture that may contain at least 0.1% of a carcinogen (crystalline silica) and classification regarding specific organ toxicity - repeated exposure (H372) applies to an untested mixture that may contain at least 1% crystalline silica.

References

• ▲1.  Vincoli, J.W., Risk management for hazardous chemicals : G-Z. Vol. 2. Boca Raton : Lewis Publishers. (1997). [RM-515112]
• ▲2.  Urben, P. G. et Pitt, M.J., Bretherick's handbook of reactive chemical hazards. Vol. 1, 7th ed. Oxford; Toronto : Elsevier. (2007). [RS-415001]
• ▲3.  Ash, M. et Ash, I., Specialty Chemicals Source Book. Synapse Information Resources, Vol. 1, 4th Ed. N.Y. : Endicott. (2009). [RS-402000]   http://www.synapseinfo.com/
• ▲4.  IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, Silica, some silicates, coal dust and para-aramid fibrils. IARC monographs on the evaluation of carcinogenic risks to humans, Vol. 68. Lyon : International Agency for Research on Cancer. (1997).   https://monographs.iarc.fr/wp-content/uploads/2018/06/mono68.pdf
  http://www.iarc.fr
• ▲5.  American Conference of Governmental Industrial Hygienists, Documentation of the threshold limit values and biological exposure indices / Documentation of TLV's and BEI's. 7th ed. Cincinnati, Ohio : ACGIH. (2001-). Publication #0100Doc. [RM-514008]   http://www.acgih.org

The [number] refers to the Information SST database of the CNESST Documentation Center.