Control measures 36.7 When monitoring under section 36.6 indicates that a worker has
been exposed to an airborne chemical or biological substance at a
concentration in excess of the occupational exposure limit established
for the substance, an employer must implement control measures
in the workplace sufficient to ensure that the exposure of the
worker to the chemical or biological substance does not exceed the
occupational exposure limit in the future.
Monitoring after control measures implemented 36.8 When an employer implements control measures to control the
concentration of an airborne chemical or biological substance, the
employer must monitor the concentration of the substance in the
workplace for a period sufficient to determine that the control
measures have reduced the concentration of the substance below the
occupational exposure limit for the substance.
Personal protective equipment 36.9(1) When an employer is required to implement control measures under
this Part to control a worker’s exposure to an airborne chemical
or biological substance, the control measures must not include
a requirement for a worker to wear or use personal protective
equipment to prevent or reduce exposure to a chemical or biological
substance unless no other measure is reasonably practicable.
36.9(2) Any personal protective equipment required under subsection (1),
including respiratory protective equipment, must meet the
requirements of Part 6 (Personal Protective Equipment).
Definitions 36.10 The following definitions apply in this Part.
“control measure” means a measure used to prevent or reduce
exposure of a worker to a chemical or biological substance
and may include substitution of materials, work practice
controls, engineering controls or the use of personal protective
equipment. (« mesure de contrôle »)
“exposure” means exposure through inhalation, ingestion,
injection, skin or mucosal contact, absorption or other route of
entry to the human body. (« exposition »)
