Make sure that chemical containers having vent caps are inspected, and that containers which do not have vent
caps are vented periodically.
Keep containers of volatile liquids as cool as possible. Exercise caution in releasing any pressure which may
have formed in the container; always release the pressure gradually. Remove caps or stoppers periodically to
vent the vapor. The practice of venting containers of volatile liquids does not apply to those samples collected
for vapor pressure tests.
· Vent separator funnels frequently when shaking volatile liquids. Always wrap the funnel with a rag when shaking
an extremely volatile liquid.
· Store propane cylinders in the safety storage cabinet for flammable liquids.
Controlling Fumes. The following safety precautions are presented to aid operators of the laboratory in
controlling toxic fumes.
· Make certain the laboratory is properly ventilated at all times.
· Perform all gas alarm system tests and calibrations as specified to ensure proper operation of system.
· If any material is spilled which gives off toxic fumes, all personnel should leave the area immediately and return
only after the area has been adequately purged.
1-13. Electrical Safety. The following electrical safety precautions apply to all operators and maintenance personnel
for the laboratory.
· Equipment producing a tingle sensation will be reported promptly for repair.
· Keep the use of extension cords to a minimum and the cords as short as possible. Be sure insulation and wire
size are adequate for the voltage and current to be carried.
· Work on electrical devices should be done after the power has been disconnected or shut off, and suitable
precautions taken to keep the power off during the work.
· Never use metallic pencils or rulers, or wear rings or watches when working on electrical equipment.
· Avoid using or storing flammable liquids near electrical equipment.