Pathology Laboratory SWMS
Diagnostic pathology laboratory operations — histology solvent exposure (xylene, formaldehyde), cryostat microtome operation, microbiology PC2 containment, specimen transport, sharps disposal and spill response.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Diagnostic pathology laboratories combine concentrated hazardous chemical exposure with infectious biological agents in a single high-throughput workflow. Routine tasks — xylene clearing, formaldehyde fixation, cryostat sectioning, PC2 microbiology culture, specimen receipt and sharps handling — generate inhalation, dermal, sharps-injury and biohazard transmission risks every shift. Under WHS Regulation 2025 Part 7.1 (Hazardous Chemicals) and Part 3.1, a PCBU must identify, assess and control these risks through a documented Safe Work Method Statement before work commences, with worker consultation under s47–49. Because the work simultaneously involves Schedule 1 high-risk construction-equivalent activities (hazardous chemicals above exposure standards and PC2 biological containment), a SWMS is mandatory, not discretionary. This document satisfies the written risk control requirement, integrates AS/NZS 2243.3:2022 containment duties, and provides the auditable record SafeWork inspectors request during laboratory audits.
Hazards identified
7 hazards covered, sorted by priority.
Central nervous system depression, dermatitis, hepatotoxicity and exceedance of the 80 mg/m³ TWA exposure standard triggering regulator notification
Nasopharyngeal carcinoma (IARC Group 1), occupational asthma, sensitisation and breach of the 1 ppm peak exposure standard
Percutaneous inoculation with bloodborne pathogens including HBV, HCV and HIV requiring post-exposure prophylaxis and serological follow-up
Laboratory-acquired infection with tuberculosis, Brucella or enteric pathogens, mandatory incident notification and contact tracing obligations
Environmental biohazard contamination, exposure of non-laboratory staff, breach of AS/NZS 2243.3 Clause 5 transport packaging requirements
Full-thickness cold burns, asphyxiation in confined storage rooms from oxygen displacement below 19.5% atmosphere
Lumbar spine injury, chemical splash from drum tipping, and back strain claims under workers compensation jurisdictional schemes
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Replace open xylene coverslipping with fully automated enclosed coverslippers and eliminate manual decanting of formaldehyde by using sealed pre-filled cassette systems where workflow permits.
- 2Elimination — Remove glass capillary tubes from haematology workflow and use plastic micro-collection devices to eliminate the highest-frequency sharps injury source identified in incident data.
- 3Substitution — Substitute xylene with limonene-based or isoparaffin clearing agents in histology processors where downstream staining quality permits, reducing inhalation exposure standard pressure.
- 4Substitution — Replace 10% buffered formalin open pours with closed-system pre-dispensed containers and neutral buffered fixative cassettes to suppress vapour at the grossing bench.
- 5Engineering — Install Class I ducted fume cabinets over grossing stations and Class II Type A2 biosafety cabinets for PC2 work, certified annually to AS 2252.4 with face velocity records retained.
- 6Engineering — Fit cryostats with HEPA-filtered local exhaust ventilation, interlocked blade guards and dedicated decontamination protocols using 70% ethanol followed by virucidal disinfectant.
- 7Administrative — Conduct atmospheric monitoring for xylene and formaldehyde at least annually per AS 2986, maintain a hazardous chemicals register under WHS Reg 346, and review SDS at five-yearly intervals.
- 8Administrative — Mandate buddy system for after-hours PC2 work, pre-shift biosafety cabinet airflow checks, immediate spill response drills quarterly, and documented competency sign-off before cryostat use.
- 9PPE — Provide nitrile gloves (double-gloved for PC2), AS/NZS 1337.1 splash-rated safety glasses, fluid-resistant lab coats with cuffed sleeves, and P2 respirators for spill response per AS/NZS 1715.
- 10PPE — Supply cryogenic gauntlets and face shields for liquid nitrogen handling, and chemical-resistant aprons rated for formaldehyde during bulk fixative transfers and waste consolidation tasks.
Applicable Codes of Practice
Imposes duties to identify, label, register, monitor exposure and provide health surveillance for xylene and formaldehyde used in histology workflows.
Defines PC2 facility design, biosafety cabinet certification, waste decontamination and transport packaging duties applicable to all diagnostic microbiology operations.
Sets the risk management process, exposure standard compliance pathway and health monitoring triggers for Schedule 14 chemicals including formaldehyde.
Governs sharps container specification, biohazard waste segregation, transport documentation and storage durations for pathology-generated clinical waste streams.
High-Risk Construction Work triggered
Routine bulk handling of xylene and formaldehyde at concentrations and volumes capable of exceeding workplace exposure standards triggers the Schedule 1 high-risk classification.
Diagnostic culture, centrifugation and manipulation of patient specimens containing Risk Group 2 micro-organisms within a certified PC2 facility meets the biohazard high-risk threshold.
PCBUs must prepare, consult workers on, and retain this SWMS for two years (or the life of any notifiable incident); penalties are substantial and indexed, with current maximums following the prevailing WHS schedule.
Who this is for
- →Laboratory managers in private and public pathology networks
- →Senior scientists supervising histology and microbiology benches
- →Biosafety officers in hospital diagnostic laboratories
- →WHS coordinators auditing PC2 facility compliance programs
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
At a metropolitan private pathology laboratory commencing a Monday morning shift, the histology supervisor runs a pre-start brief at the grossing bench for four scientists rotating through cut-up, processing and cryostat duties. She opens this SWMS on the bench tablet and walks the team through the seven hazards, pausing on xylene vapour and cryostat sharps because the daily workload includes a melanoma frozen section panel. The team confirms the Class I fume cabinet face velocity reading from the morning log sits within tolerance, the cryostat blade guard interlock is functional, and double-gloving is in place for the PC2 mycobacterial culture work scheduled at 10am. Each scientist signs the SWMS sign-on register on the tablet, acknowledging the limonene substitution trial is paused this week due to a staining quality issue, so xylene controls remain at full engineering level. Mid-morning, a formalin container is dropped during grossing — the supervisor pauses work, retrieves the spill response section of the SWMS, deploys the formaldehyde neutralising spill kit, dons a P2 respirator and chemical apron as specified, and documents the event in the chemical incident log. The SWMS is re-reviewed at handover to the afternoon shift with the spill noted as a control verification trigger requiring monitoring data refresh within thirty days.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- Code of Practice — Hazardous Manual Tasks