Health Hazard 7 : Any property of a material that either directly or indirectly can cause injury or incapacitation, either temporary or permanent, from exposure by contact, inhalation, or ingestion.
NFPA 1521 Standard for Fire Department Safety Officer, 2002 ed. http://www.nfpa.org/assets/files/AboutTheCodes/152 1/1521-A2002-rop.pdf, (Std: Fr Dept Sf Officer - Amer) {400 NFC}