Laboratory Safety and Regulations Flashcards
6 cards from real BACE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Laboratory Safety and Regulations flashcards as text
What is the OSHA Hazard Communication Standard (HCS) 'Right to Know' law primarily focused on?
Answer: Ensuring workers have access to information about hazardous chemicals in the workplace through labels and Safety Data Sheets
The HCS (29 CFR 1910.1200) requires chemical manufacturers to provide hazard information via labels and SDSs, and employers to train workers on chemical hazards and make SDSs accessible.
What type of eye protection is required when working with potentially infectious biological materials or chemical splashes?
Answer: Chemical splash goggles or a face shield worn over safety glasses
Chemical splash goggles seal around the eyes and protect against liquid splashes; standard safety glasses alone do not prevent liquid from entering above, below, or beside the lens.
What is the proper first response action when a researcher spills a small volume of a mildly corrosive acid (dilute HCl) on their bare forearm?
Answer: Immediately flush the affected area with large amounts of water for at least 15-20 minutes
Immediate and copious water flushing for 15-20 minutes dilutes and removes the acid, minimizing tissue damage — neutralization pastes can cause exothermic reactions and should not be applied first.
Under OSHA's Bloodborne Pathogen Standard (29 CFR 1910.1030), who must be offered the hepatitis B vaccine at no cost?
Answer: Employees with occupational exposure to blood or other potentially infectious materials (OPIM)
The standard requires employers to offer hepatitis B vaccination at no cost to employees with occupational exposure risk — those whose jobs involve potential contact with blood or OPIM.
What is the purpose of a 'Threshold Limit Value — Short Term Exposure Limit' (TLV-STEL) for a chemical?
Answer: It defines the maximum airborne concentration a worker can be exposed to for a 15-minute period without adverse effects
TLV-STEL is the ACGIH exposure limit for short-duration (15-min) peak exposures that should not be exceeded.
When disposing of chemical waste from a laboratory, what must be present on every chemical waste container?
Answer: A proper chemical waste label showing all chemical contents, associated hazards, and the generating laboratory location
EPA and RCRA regulations require chemical waste containers to be clearly labeled with all contents, their hazard characteristics, and the generating location.