WHMIS (Hydrogen)

Workplace Hazardous Materials Information System

WHMIS 2015 classification - Note to reader

• Flammable gases - Category 11 2
• Flammable limit - concentration range = 4 - 75 % (71%)

• Gases under pressure - Compressed gas2 3 4
• Compressed gas listed in : UN Recommendations on the TDG - Model Regulations Vol II.

• Simple asphyxiants - Category 15 6
• Gas that is liable to cause asphyxiation by the displacement of air.

Danger

Extremely flammable gas (H220)
Contains gas under pressure; may explode if heated (H280)
May displace oxygen and cause rapid suffocation

Ingredient disclosure

References

• ▲1.  Pohanish, R.P. et Greene, S.A., Wiley guide to chemical incompatibilities. 3ème éd. New Jersey : John Wiley & Sons Inc. (2009). [RR-015033]   www.wiley.com
• ▲2.  National Fire Protection Association, Fire protection guide to hazardous materials. 14th ed. Quincy, Mass. : NFPA. (2010). [RR-334001]
• ▲3.  Nations-Unies, «Partie 4 - Dispositions relatives à l'utilisation des emballages et des citernes - Liste des instructions d'emballage.» In: Recommandations relatives au transport des marchandises dangereuses - Règlement type - Dix-huitième édition révisée . New-York, N.Y. : United Nations. (2013). ST/SG/AC.10/1/rev. 18 (Vol. II). [MO-026856]   http://www.unece.org/fileadmin/DAM/trans/danger/publi/unrec/rev18/French/Rev18f_Volume2.pdf
  http://www.unece.org/fr/trans/danger/publi/unrec/rev18/18files_f.html
• ▲4.  Pohanish, R.P. et Greene, S.A., Hazardous materials handbook. New York (NY) : Van Nostrand Reinhold. (1996). [RR-515125]
• ▲5.  Règlement sur la santé et la sécurité du travail [S-2.1, r. 13]. Québec : Éditeur officiel du Québec. [RJ-510071]   http://legisquebec.gouv.qc.ca/fr/ShowDoc/cr/S-2.1,%20r.%2013
• ▲6.  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.