Audit Laboratory Safety

---
name: audit-laboratory-safety
description: Use when conducting a systematic safety inspection of a chemical laboratory or evaluating compliance with laboratory safety regulations
source: OSHA Laboratory Standard (29 CFR 1910.1450); ACS "Safety in Academic Chemistry Laboratories" (2003); CHP (Chemical Hygiene Plan) requirements
tags: [chemistry, laboratory-safety, compliance, risk-assessment]
verified: true
---

# Audit Laboratory Safety

Systematically evaluate a chemistry laboratory for regulatory compliance, hazard control, and emergency preparedness.

## Why This Is Best Practice

**Adopted by:** OSHA (29 CFR 1910.1450 mandatory for US academic labs), EPA waste regulations (40 CFR 262), NFPA 45 fire protection standard, NIH/NSF grant compliance requirements, UK COSHH regulations.

**Impact:** OSHA laboratory standard reduced lab injury rates by 35% in the decade following its 1990 adoption; ACS survey found 60% of lab accidents attributed to inadequate training or PPE — both correctable by audit.

**Why best:** Systematic audit with checklist prevents omission of hazard categories; documented audits create accountability and track improvement over time; regulatory compliance prevents penalties up to $156,259 per willful violation (OSHA 2023).

Sources: OSHA 29 CFR 1910.1450; ACS "Safety in Academic Chemistry Laboratories" 8th ed. (2017); NFPA 45 (2019); EPA 40 CFR 262 (hazardous waste).

## Steps

1. **Review the Chemical Hygiene Plan (CHP)** — verify the CHP is current (<3 years), accessible in the lab, and covers all chemical classes present. OSHA requires a written CHP; its absence is a citable violation.

2. **Audit chemical inventory and SDS** — confirm Safety Data Sheets (SDS, GHS format) are present and accessible for every chemical. Check that the inventory is current and quantities match storage limits (NFPA 45 MAQs).

3. **Inspect chemical storage** — verify: incompatible chemicals segregated (acids from bases, oxidizers from organics); flammables in rated cabinets; peroxide-forming chemicals dated and within expiration; cryogens stored in vented dewars.

4. **Evaluate PPE compliance** — check availability and condition of: nitrile/chemical gloves (correct grade per chemical), safety glasses/goggles/face shield, lab coat (cotton/flame-resistant as appropriate), closed-toe shoes. Verify personnel are trained in PPE selection.

5. **Inspect engineering controls** — test fume hood face velocity (target 80–100 fpm per ASHRAE 110); verify biosafety cabinets are certified (<12 months); check that ventilation systems have no blockages.

6. **Check emergency equipment** — verify: eyewash station flushes both eyes simultaneously, reachable within 10 seconds of hazard (<55 ft); safety shower delivers 20 gal/min for 15 min; fire extinguisher charged and inspected within 12 months; spill kit stocked for chemical classes present.

7. **Review waste management** — confirm: satellite accumulation containers labeled with "Hazardous Waste" + contents + accumulation start date; containers closed except when adding waste; waste not accumulated >55 days (large generator) or >180 days (small quantity generator).

8. **Assess training records** — verify documented training for: Lab Safety Orientation, CHP, specific chemical hazards (carcinogens, reproductive toxins, acutely toxic), emergency procedures. Training must be documented with date and signature.

9. **Evaluate electrical and fire hazards** — check: no extension cords as permanent wiring; circuit breakers accessible; no food or drink in lab; heating elements (hotplates, mantles) have automatic shutoff or supervision protocol.

10. **Document findings and corrective actions** — record each deficiency with: location, regulation citation, risk level (critical/serious/minor), responsible person, and target correction date. Re-audit corrective actions within 30 days for critical findings.

## Rules

- Critical findings (missing SDS, non-functional eyewash, unlabeled hazardous waste) require immediate correction or work stoppage — do not defer.
- Audit findings must be documented and signed; verbal-only audits are unenforceable and provide no liability protection.
- Include lab personnel in the audit walk-through — this is also a training opportunity.
- Cross-reference against the most current local regulations; OSHA sets the floor, but state plans (Cal/OSHA, NYSDOL) may be more stringent.

## Common Mistakes

- **Checklist without follow-up** — identifying deficiencies without assigned owners and deadlines results in no improvement.
- **Ignoring peroxide-forming chemicals** — ether, THF, dioxane form explosive peroxides; unlabeled/undated containers are a serious explosion risk.
- **Fume hood sash left up** — a fully open sash reduces face velocity by 50%; occupants frequently leave hoods open between uses.
- **Treating SDS access as satisfied by a binder in the office** — SDS must be immediately accessible at the point of use during the work shift.

## When NOT to Use

- For radiological or biological safety audits — those require separate domain expertise (radiation safety officer, biosafety officer) and distinct regulatory frameworks
- For process safety management (PSM) in industrial facilities — PSM (OSHA 29 CFR 1910.119) applies to highly hazardous chemicals above threshold quantities and requires a different audit protocol
- For a general workplace safety audit unrelated to chemical hazards (use OSHA General Industry standards instead)