Laboratory Safety Protocols Flashcards

When a laboratory worker is exposed to a chemical splash to the eyes, the first action should be to:

Answer: Flush eyes at an eyewash station for at least 15 minutes

Immediate flushing at an eyewash station for a minimum of 15 minutes is the standard first-aid response for chemical eye exposure.

Which class of fire extinguisher is appropriate for a laboratory fire involving electrical equipment?

Answer: Class C

Class C extinguishers use non-conductive agents suitable for energized electrical equipment fires.

A Safety Data Sheet (SDS) Section 8 provides information about:

Answer: Exposure controls and personal protective equipment

SDS Section 8 covers exposure controls and PPE recommendations according to the GHS/WHMIS standard format.

Under CCIL-accredited laboratory protocols, compressed gas cylinders must be stored:

Answer: Upright and secured to a wall or post with a chain or strap

Compressed gas cylinders must be stored upright and restrained to prevent tipping, which could damage the valve and cause a hazardous release.

What is the primary purpose of a laboratory fume hood?

Answer: To contain and exhaust hazardous vapors away from laboratory personnel

Fume hoods protect workers by containing and ventilating chemical vapors, gases, and dusts to the outside.

When pipetting hazardous liquids in a laboratory, workers should:

Answer: Use mechanical pipetting aids only

Mouth pipetting is strictly prohibited in laboratories; mechanical pipetting devices must always be used with hazardous liquids.

Which hazard communication label element indicates the relative severity of a chemical hazard under GHS?

Answer: Signal words (Danger or Warning)

Signal words — 'Danger' for more severe hazards and 'Warning' for less severe — indicate relative risk level on GHS labels.