Mongolia OSH Officer Knowledge Test cheat sheet

Core statute: Law of Mongolia on Labor Safety and Hygiene (2008, amended) - sets employer duties, worker rights, state inspection authority and liability for violations.

The Labor Law (1999, as amended) governs employment contracts, working time, rest periods, leave and termination; OSH duties are read together with the Labor Safety and Hygiene Law.

Tripartite governance: the National Tripartite Committee on Labor and Social Consensus advises on labor and OSH policy; aimag and capital-city tripartite committees operate at local level.

State labor inspection is carried out by the General Agency for Specialized Inspection (GASI) through its labor inspection division; inspectors may issue mandatory orders, suspend work and impose administrative fines.

Employer must register the workplace, conduct risk assessment, appoint or designate OSH responsible persons, provide PPE at employer cost and record and report accidents.

Accident reporting rule: employer must report a fatal or group accident immediately to the state labor inspector and the local governor; investigation is conducted with inspector participation.

Workers have the right to refuse work that poses an imminent danger to life or health, and to compensation for injury or occupational disease under the Law on Labor Safety and Hygiene and civil liability rules.

Administrative liability for OSH violations is set in the Law on Administrative Offenses; criminal liability for fatal negligence follows the Criminal Code; collective agreements may raise standards above statutory minimums.

PDCA cycle: Plan (policy, objectives, risk assessment) - Do (implementation, training, controls) - Check (monitoring, audit, incident review) - Act (management review, corrective action).

ISO 45001 structure uses clauses 4-10: context, leadership and worker participation, planning, support, operation, performance evaluation, improvement; Mongolian enterprises often align internal OSH systems to it.

Policy must include commitment to injury and ill-health prevention, comply with legal requirements (Labor Safety and Hygiene Law), and be signed by top management.

Hierarchy of controls in system design: elimination, substitution, engineering controls, administrative controls, PPE - PPE is the last line and never the sole control where a higher control is practicable.

Documented information needed: risk register, legal register, training records, inspection records, PPE issue log, incident reports, audit reports, management review minutes.

Objectives must be measurable and assigned an owner and deadline; progress is tracked at management review at least annually.

Worker consultation is a system requirement, not optional: safety committees or worker representatives must be consulted on risk assessment, control changes and incident investigation.

Contractor and supplier control: the system must define how OSH requirements are communicated and verified for contractors, temporary workers and subcontracted work.

Risk score = likelihood × severity; use a 5×5 matrix (1-5 each) giving scores 1-25, with action thresholds typically: 1-4 acceptable, 5-9 monitor, 10-15 action required, 16-25 stop and control immediately.

Hazard types to scan: physical (noise, vibration, heat, radiation, electricity), chemical, biological, ergonomic, psychosocial, mechanical, and work-organisation hazards.

Hierarchy of controls ranking: elimination > substitution > engineering isolation/ventilation > administrative (procedures, rotation, training) > PPE.

Common physical thresholds: noise action level 80 dB(A) for hearing protection provision and 85 dB(A) for mandatory protection; heat stress assessed by WBGT; lighting and thermal comfort assessed against hygienic norms.

Risk assessment must be documented, reviewed after any change in process, equipment, chemicals or personnel, and at least periodically per the enterprise system.

ALARP principle: reduce risk as low as reasonably practicable; residual risk after controls must be recorded and communicated to affected workers.

Task-based assessment: break work into steps, identify hazards per step, rate risk before and after controls, and record the responsible person and completion date.

Chemical risk assessment uses the safety data sheet (SDS), exposure scenario, quantity, frequency and duration, plus ventilation and PPE; substitute hazardous chemicals where feasible.

Inspection types: planned (scheduled), unplanned (triggered by complaint or incident), follow-up (verify corrective action), and special (targeted campaign).

Checklist-based inspection records: date, area, inspector, hazard found, risk rating, corrective action, responsible person, deadline, close-out verification signature.

Audit differs from inspection: audit checks system conformity against criteria and is independent of the area being audited; inspection checks physical conditions and practices.

Incident investigation steps: secure the scene and prevent recurrence, preserve evidence, gather witness statements, establish timeline, identify root causes, recommend corrective actions, track to close-out.

Root cause analysis tools: 5 Whys, fishbone (Ishikawa) diagram, fault tree analysis, and barrier analysis; distinguish immediate cause, contributing cause and root (system) cause.

Reportable events: fatalities, group accidents, serious injuries and occupational disease cases must be reported to the state labor inspector; records are kept and statistics reported.

Accident causation model: unsafe acts and unsafe conditions are symptoms; underlying causes are management system failures such as inadequate training, poor design or missing supervision.

Corrective action must address the root cause, not only the symptom; effectiveness is verified by re-inspection and by monitoring incident trends over time.

Fire triangle: fuel, oxygen, heat; extinguishing removes one leg - cooling (water), smothering (foam, CO2, blanket), or oxygen displacement/chemical inhibition (dry powder).

Fire classes: A solid combustibles (water, foam), B flammable liquids (foam, CO2, dry powder), C gases (dry powder, CO2), D metals (special dry powder), E electrical (CO2, dry powder - never water).

Extinguisher inspection: monthly visual check of gauge, seal, hose and access; annual maintenance; hydrostatic test per manufacturer interval.

Evacuation planning: at least two exit routes where practicable, exit doors open outward and never locked during working hours, illuminated exit signs, assembly point with headcount.

Drill frequency: fire evacuation drills at least twice a year for high-occupancy or high-risk workplaces; record date, participants, evacuation time and lessons learned.

Emergency plan content: alarm system, roles (warden, first aid, fire team), communication with emergency services (101 fire, 103 ambulance in Mongolia), shutdown procedures, and recovery.

First aid: trained first aiders and stocked kits per shift; eyewash stations where corrosive chemicals are used; spill kits and absorbents for chemical releases.

Emergency equipment must be inspected and maintained: alarm and detection systems, sprinklers, hydrants, emergency lighting, and gas masks or breathing apparatus for confined-space rescue.

Exposure routes: inhalation (main route for gases, vapours, dusts), skin absorption, ingestion, and injection; inhalation control relies on local exhaust ventilation and respiratory protection.

TLV-style limits: compare measured 8-hour time-weighted average (TWA) with the occupational exposure limit; short-term exposure limit (STEL) covers 15 minutes; ceiling limit is never to be exceeded.

TWA formula: TWA = (C1T1 + C2T2 + … + CnTn) / 8, where C is concentration and T is hours exposed in an 8-hour shift.

Dose-response: health effect depends on concentration, duration, toxicity and individual susceptibility; acute effects appear shortly after high exposure, chronic effects after repeated low exposure.

Noise: 80 dB(A) action level, 85 dB(A) hearing protection mandatory, hearing test (audiometry) for noise-exposed workers; hearing loss from noise is irreversible.

Occupational diseases recognised in Mongolia include pneumoconiosis (dust), noise-induced hearing loss, vibration disease, occupational dermatitis, and chemical poisoning; diagnosed through periodic medical examinations.

Periodic medical examinations: pre-employment, periodic (frequency set by hazard, e.g. annually for high-hazard exposures), and exit examinations; results are recorded and confidential.

Industrial hygiene monitoring: air sampling for dusts, vapours and gases; biological monitoring (e.g. blood lead, urinary metabolites) where absorption occurs; results compared with hygienic norms.

Training must be provided at induction (before starting work), on job change or new equipment, after an incident, and refresher at defined intervals; records include name, topic, date, trainer and signature.

Competency-based training: define what the worker must be able to do (e.g. use a respirator, isolate energy), then assess by observation or test, not attendance alone.

New worker induction covers site hazards, emergency procedures, PPE, reporting, first aid, and the right to refuse unsafe work.

Safety communication channels: toolbox talks (short daily or weekly briefings), safety committee meetings, notice boards, SDS access, and incident alerts.

Worker participation mechanisms: safety committee with worker representatives, hazard reporting system with no-blame reporting, and consultation before changes to processes or controls.

Training effectiveness is evaluated by pre/post knowledge checks, observation of safe behaviour, and reduction in incidents or near misses in the trained group.

Language and literacy: training must be delivered in a language and format workers understand; pictorial aids and demonstrations where literacy is limited.

Special categories: young workers, pregnant workers, contractors and temporary workers need additional or tailored instruction and supervision.

Legal hierarchy: Constitution > laws (Labor Law, Law on Labor Safety and Hygiene) > government resolutions and ministerial orders > collective agreements and internal rules.

The Law on Labor Safety and Hygiene requires employers to establish an OSH service or designate a responsible person depending on workforce size and hazard level; workers must be informed of risks.

Employer obligations include providing safe machinery and premises, free PPE, sanitary facilities, drinking water, and training; workers must follow rules and use PPE.

Working time limits under the Labor Law: normal working week 40 hours; overtime requires consent and is limited; rest breaks and annual leave are statutory.

Special protection: workers under 18 may not perform hazardous work; night work and heavy lifting are restricted; pregnant and nursing workers are entitled to transfer away from harmful exposures.

Collective agreements may set higher OSH standards, additional leave, and compensation; they are registered and binding on the parties.

State inspection powers: inspectors may enter workplaces without prior notice, take samples, interview workers, issue compliance orders, and suspend operations posing imminent danger.

Employer record-keeping: maintain accident register, occupational disease records, training records, PPE issue records and risk assessment documents; retention periods apply.

Inspection frequency should be risk-based: high-risk areas inspected more often (e.g. monthly) than low-risk offices (e.g. quarterly or annually).

Inspection findings are classified: immediate danger (stop work now), major nonconformity (fix within days), minor (fix within weeks); each has a responsible person and deadline.

Near-miss reporting is a leading indicator; a near miss is an incident without injury and must be investigated to prevent a future injury.

Incident data metrics: lost-time injury frequency rate (LTIFR) = (number of lost-time injuries × 1,000,000) / total hours worked; severity rate uses lost days.

Witness interviews: separate witnesses, ask open questions, record statements verbatim, avoid leading questions, and cross-check against physical evidence.

Evidence preservation: photograph the scene, tag equipment, retain damaged parts, secure records, and keep the chain of custody.

Investigation report structure: summary, sequence of events, findings, root causes, corrective actions with owners and dates, and sign-off by management.

Follow-up: verify corrective actions by re-inspection and track incident trends to confirm the fix worked; close the report only when verified.

Emergency plan must cover fire, chemical release, medical emergency, natural disaster (earthquake, dzud, flood) and utility failure, with roles and contact numbers.

Alarm and detection: smoke detectors in corridors and rooms, heat detectors in kitchens, manual call points at exits; test and record at defined intervals.

Escape route requirements: unobstructed, clearly marked, adequate width, emergency lighting, and doors that open in the direction of escape from occupied spaces.

Fire drill evaluation: measure evacuation time against target, check headcount at assembly point, identify bottlenecks, and record lessons learned for the next drill.

Fire extinguisher selection by class: water for A, foam for A/B, CO2 for B/E, dry powder for A/B/C/E, special powder for D; never water on electrical or metal fires.

Hot work permit: required for welding, cutting and grinding; includes fire watch, removal of combustibles, extinguisher at hand, and post-work check for smouldering.

Chemical spill response: evacuate, ventilate, use absorbents compatible with the chemical, contain to prevent drain entry, dispose as hazardous waste, and report.

Emergency contact numbers in Mongolia: fire 101, ambulance 103, police 102; post them at phones and on notice boards.

Airborne contaminants: dusts (particulates), fumes (metal oxide particles from welding), mists, vapours (solvent evaporation) and gases; control by local exhaust ventilation at source.

Respiratory protection selection: particulate filters for dusts and mists, gas/vapour cartridges for organic vapours, supplied air for oxygen-deficient or IDLH atmospheres; fit test required.

Confined space: oxygen 19.5-23.5%, test for flammable gas and toxic gas before entry, continuous monitoring, attendant outside, rescue plan, permit to enter.

Heat stress: WBGT index, acclimatisation, fluid intake, rest breaks, cooling; heat stroke is a medical emergency (confusion, hot dry skin) - cool and call ambulance.

Vibration: hand-arm vibration from powered tools causes vibration white finger; limit exposure time, use anti-vibration tools and gloves, and monitor symptoms.

Ergonomics: manual handling risk from load weight, posture, frequency and distance; use mechanical aids, team lifting, and workstation adjustment to reduce musculoskeletal disorders.

Chemical labelling: GHS labels with hazard pictograms, signal words and hazard statements; SDS sections 1-16 include composition, first aid, firefighting, handling and exposure controls.

Biological hazards: bloodborne pathogens, moulds, animal contact; use gloves, hand hygiene, disinfection and vaccination where indicated.

Training needs analysis: identify gaps by job role, hazard exposure, incident history and legal requirements before designing training content.

Adult learning: short sessions, practical demonstration, case examples from the workplace, and immediate feedback improve retention over lecture-only formats.

Toolbox talk structure: 5-10 minutes, one topic, a real hazard example, a clear action, and a question to confirm understanding.

Records must be auditable: training matrix showing who needs what training and when it is due; certificates and attendance sheets kept for the retention period.

Communication of risk assessment results: workers must know the hazards of their job, the controls in place, and what to do if controls fail.

Safety signs: prohibition (red circle), warning (yellow triangle), mandatory (blue circle), emergency/first aid (green square); ensure signs match the language and literacy of workers.

Contractor induction: site rules, emergency procedures, permit systems, PPE requirements and reporting lines before starting work.

Feedback loop: worker hazard reports are logged, actioned and the reporter is informed of the outcome to sustain participation.

Legal register: list all applicable laws, regulations and standards (Labor Law, Labor Safety and Hygiene Law, ministerial orders) and identify how each applies to the organisation.

Risk register fields: hazard, activity, affected persons, existing controls, likelihood, severity, risk rating, additional controls, owner, review date.

Management review inputs: audit results, incident statistics, legal compliance, objectives progress, worker consultation, and resource needs.

Key performance indicators: leading (inspections completed, training hours, near misses reported) and lagging (LTIFR, lost days, incidents).

Document control: version number, approval, date, distribution and review cycle; obsolete documents removed from use.

Emergency and business continuity: identify critical operations and plan for loss of utilities, key personnel or premises.

Supplier and contractor evaluation: pre-qualification questionnaire covering OSH policy, incident history, training and insurance.

Certification: ISO 45001 certification requires internal audit, management review and corrective action before external audit.

Hazard identification methods: workplace inspection, task analysis, HAZOP for processes, fault tree analysis, incident and near-miss review, and worker consultation.

Risk matrix consistency: define likelihood and severity scales in writing so different assessors produce comparable ratings.

Control selection: prefer controls that protect everyone (engineering) over controls that depend on individual behaviour (PPE).

Residual risk: after controls, re-rate risk; if still high, add controls or stop the activity.

Change management: any new chemical, equipment, process or layout triggers a new risk assessment before use.

Permit-to-work: required for hot work, confined space, work at height, electrical isolation and excavation; permit defines precautions, duration and authorisation.

Lockout/tagout: isolate energy sources, lock, tag, verify zero energy before maintenance.

Monitoring: check that controls remain effective through inspection, exposure monitoring and worker feedback.

Toxicokinetics: absorption, distribution, metabolism, excretion; metabolism can activate (e.g. some solvents) or detoxify a chemical.

Dose-response curve: threshold for most occupational chemicals; carcinogens may have no safe threshold, so exposure should be minimised.

Acute vs chronic: acute effects from short high exposure (e.g. solvent narcosis), chronic from long-term low exposure (e.g. lead neuropathy).

Target organs: solvents - liver, nervous system; lead - blood, nervous system, kidneys; silica - lungs; noise - hearing.

Exposure limits: TWA (8-hour), STEL (15-minute), ceiling; mixtures use additive formula C1/L1 + C2/L2 + … ≤ 1.

Biological monitoring: blood lead, urinary mercury, cholinesterase for organophosphates; interpret against biological limit values.

Sensitisation: some chemicals (isocyanates, formaldehyde) cause asthma or dermatitis after sensitisation; remove affected worker from exposure.

First aid for chemical exposure: remove from exposure, flush eyes/skin with water 15 minutes, seek medical help, bring SDS.

Safety committee: composition, meeting frequency, agenda (incidents, inspections, training, changes), minutes and action tracking.

Worker representative rights: consult on risk assessment, incident investigation and control changes; raise hazards without fear of reprisal.

Reporting culture: no-blame reporting of errors and near misses increases information flow; blame suppresses reporting.

Behaviour-based safety: observe behaviour, give feedback, and address underlying system causes rather than blaming the individual.

Safety climate surveys: measure worker perceptions of management commitment, communication and involvement.

Recognition: reward reporting and safe behaviour, not just low incident counts (which can suppress reporting).

Communication channels: notice boards, digital platforms, toolbox talks, and translation for migrant or minority-language workers.

Participation in drills: workers should practise their emergency roles, not just evacuate.

Administrative liability: fines for OSH violations under the Law on Administrative Offenses; repeat violations may lead to suspension.

Criminal liability: negligence causing death or serious injury can lead to prosecution under the Criminal Code.

Civil liability: employer compensates injury and occupational disease; insurance may cover.

Inspector powers: enter premises, take samples, interview, issue orders, suspend dangerous work.

Worker rights: refuse imminent-danger work, receive information and training, request inspection.

Employer duties: risk assessment, PPE, training, accident reporting, medical examinations.

Record retention: accident and training records kept for defined periods and available to inspectors.

Tripartite bodies: national and local committees advise on policy and dispute resolution.

Combustion requires fuel, oxygen, heat and chain reaction; extinguishing breaks one element.

Flash point: lowest temperature at which a liquid gives off enough vapour to ignite; lower flash point means higher fire risk.

Autoignition temperature: temperature at which a material ignites without an ignition source.

Flammable range: lower and upper explosive limits (LEL/UEL); gas detection alarms at a percentage of LEL.

Fire growth stages: incipient, growth, fully developed, decay; early detection and suppression limit damage.

Smoke is the main killer: toxic gases (CO, HCN) and reduced visibility; use respiratory protection for rescue only by trained personnel.

Fire load: total combustible material per area; affects fire severity and required suppression.

Hot work and electrical fires: isolate energy, use appropriate extinguisher, never water on live electrical equipment.

Sampling strategy: identify similar exposure groups (SEGs), sample representative workers, and compare with limits.

Personal sampling: pump and filter/cartridge worn in breathing zone; area sampling for background only.

TWA calculation: sum of concentration × time divided by 8 hours.

Mixture formula: C1/L1 + C2/L2 + … ≤ 1 for additive effects.

Noise measurement: sound level meter and dosimeter; 3 dB exchange rate means halving exposure time halves dose.

Ventilation: local exhaust at source, capture velocity, duct design, and make-up air balance.

PPE programme: selection, fit testing, training, maintenance and replacement schedule.

Medical surveillance: baseline, periodic, exit; results confidential and used to protect the worker.

Learning objectives: state what the worker will be able to do after training, in observable terms.

Content design: match to job tasks and hazards identified in risk assessment.

Delivery: demonstration, practice, feedback, and short sessions improve retention.

Assessment: knowledge test plus practical observation.

Evaluation levels: reaction, learning, behaviour, results (incident reduction).

Records: training matrix, attendance, certificates, and review cycle.

Refresher: frequency based on risk and legal requirement.

Language and literacy: adapt materials to the audience.

5 Whys: ask why repeatedly until the system cause is reached.

Fishbone: categories of causes (people, equipment, environment, management, materials, methods).

Fault tree: top event, contributing events, and barriers.

Barrier analysis: identify which barriers failed and why.

Timeline: sequence events with times and evidence.

Immediate vs root cause: immediate cause is the act or condition; root cause is the system failure.

Corrective action: address root cause, assign owner and date, verify effectiveness.

Trend analysis: monitor incident rates over time to detect patterns.

Work at height: guardrails, fall arrest, scaffolds inspected and tagged; fall is a leading cause of fatal injury.

Excavation: shoring, sloping, access, and gas testing; spoil kept back from edge.

Electrical: isolation, lockout/tagout, earth leakage protection, and competent persons.

Lifting operations: load charts, rigging inspection, exclusion zones, and competent operators.

Confined space: permit, gas testing, attendant, rescue plan.

Hot work: permit, fire watch, removal of combustibles.

PPE: helmet, boots, high-visibility clothing, gloves, eye protection, hearing protection.

Site induction and daily briefings for changing conditions.

SDS sections 1-16: identification, hazards, composition, first aid, firefighting, accidental release, handling, exposure controls, physical properties, stability, toxicology, ecology, disposal, transport, regulatory, other.

GHS pictograms: flame, skull, health hazard, corrosion, exclamation, gas cylinder, environment.

Labels: product identifier, hazard statements, precautionary statements, supplier.

Storage: segregate incompatible chemicals, ventilate, secondary containment, and label containers.

Spill response: evacuate, ventilate, absorb, contain, dispose, report.

Waste: hazardous waste segregated and disposed per regulations.

Exposure control: substitute, ventilate, PPE, and monitor.

Training: workers must understand SDS and labels.

Pre-employment medical: baseline fitness and exposure history.

Periodic medical: frequency by hazard; detects early health effects.

Exit medical: documents final health status.

Occupational disease reporting: diagnose, report, and compensate.

First aid: trained first aiders, kits, eyewash, and emergency contacts.

Health promotion: vaccination, ergonomics, mental health.

Confidentiality: medical records protected; only fitness-for-work shared.

Return to work: modified duties and rehabilitation.

Audit criteria: legal requirements, ISO 45001, internal procedures.

Auditor competence: trained, independent of area audited.

Audit plan: scope, schedule, checklist, sampling.

Findings: conformities, nonconformities, observations.

Nonconformity: requirement not met; corrective action required.

Follow-up: verify corrective action and close.

Records: audit report, findings log, corrective action tracker.

Management review: audit results feed into review.

Drill types: tabletop, functional, full-scale evacuation.

Frequency: at least twice a year for high-risk sites.

Evaluation: evacuation time, headcount, communication, bottlenecks.

Roles: warden, first aid, fire team, communications.

Assembly point: safe distance, headcount, no re-entry until cleared.

Records: date, participants, time, lessons learned.

Improvement: update plan and retrain based on findings.

Coordination: inform local emergency services where required.

Risk factors: load weight, posture, frequency, distance, grip, environment.

Assessment tools: RULA, REBA, NIOSH lifting equation.

Controls: mechanical aids, team lifting, workstation adjustment, job rotation.

Musculoskeletal disorders: back, shoulder, wrist; early reporting improves outcome.

Display screen equipment: chair, monitor height, breaks, eye tests.

Repetitive work: pause exercises, tool design, rotation.

Training: correct lifting technique and use of aids.

Monitoring: report symptoms and adjust work.

Hazards: excessive workload, long hours, shift work, violence, harassment, low control.

Effects: stress, burnout, depression, cardiovascular disease, errors.

Assessment: surveys, interviews, absence and turnover data.

Controls: workload management, clear roles, support, training, and confidential reporting.

Shift work: rotation forward, rest breaks, lighting, and health monitoring.

Violence: risk assessment, security, training, and reporting.

Support: employee assistance and return-to-work.

Monitoring: climate surveys and incident trends.

Selection: match to hazard, exposure level, and compatibility.

Fit: respirator fit testing, hearing protection fit, glove size.

Training: when, how, limitations, and maintenance.

Maintenance: cleaning, inspection, replacement schedule.

Storage: clean, dry, accessible.

Records: issue log and training records.

Limitations: PPE is last line; never sole control where higher control is practicable.

Compatibility: PPE items must work together (e.g. glasses and respirator).

Exposure monitoring: air sampling, noise, vibration, heat.

Biological monitoring: blood, urine tests for absorbed chemicals.

Health surveillance: periodic medical exams for exposed workers.

Results: compare with limits; act if exceeded.

Records: kept confidential, reviewed by occupational health.

Trends: monitor over time to detect deterioration.

Communication: inform workers of results and controls.

Review: adjust controls and monitoring frequency.

Pre-qualification: OSH policy, incident history, training, insurance.

Contract: define OSH responsibilities, permits, and reporting.

Induction: site rules, emergency, PPE, reporting.

Supervision: monitor contractor work and coordinate with host.

Permits: hot work, confined space, work at height.

Incident reporting: contractors report to host and authorities.

Evaluation: review performance after job.

Records: contractor documents retained.

Leadership: visible commitment, resources, and accountability.

Culture: shared values and behaviours around safety.

Reporting: no-blame reporting increases information.

Learning: investigate and share lessons.

Participation: workers involved in decisions.

Recognition: reward reporting and safe behaviour.

Measurement: surveys, incident trends, audit results.

Improvement: action plans with owners and dates.