MSA G1 Operating Manual page 16

5 Before Use
• If this respirator is used for protection against substances that have poor warning properties, there is no secondary
method of notification about when to replace the air filtration cartridges/canisters. Obey additional precautions to prevent
overexposure, such as a more conservative change-out schedule or use of an SAR or SCBA.
Failure to follow these warnings can result in serious personal injury or death.
This is an approved air-purifying respirator ONLY when it is used in an approved configuration. For information about approved
configurations, refer to the G1 APR Approval Insert (PN 10160485). For information about approved configurations for the head
harness, refer to Table 1 . Do not exceed the maximum use concentrations set by regulatory standards.
Users must comply with the following MSA respirator use limitations.
Do not exceed the following maximum use concentrations during use:
• 50 times the exposure limit for the contaminants in the environment if a quantitative fit test is used. Using a qualitative fit
test can decrease the maximum use concentration.
• Immediately dangerous to life or health (IDLH) concentration for any contaminant in the environment.
The following is a PARTIAL list of substances that have poor warning properties.
Acrolein
Aniline
Arsine
Bromine
Carbon monoxide
Diisocyanates
Dimethyl sulfate
Hydrogen cyanide
Hydrogen selenide
Methanol
Methyl bromide
Methyl chloride
Methylene chloride
Nickel carbonyl
Nitric Acid
Nitro compounds:
- Nitrogen oxides
- Nitroglycerin
- Nitromethane
Ozone
Phosgene
Phosphine
Phosphorous trichloride
Stibine
Sulfur chloride
Urethane or other diisocyanate containing paints
Vinyl chloride
G1 APR Facepiece
US
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