Heat stress, cold stress, and workplace illumination assessment
Heat, cold, and lighting affect worker safety, productivity, and wellbeing. We deliver WBGT-based heat stress assessment per ACGIH and ISO 7243, cold stress evaluation per ISO 11079, and illumination surveys per IES and BIS standards.

A practical, phased delivery approach — from gap assessment through operational embedding — built around your regulatory context.
Assess heat stress per ISO 7933 (PHS - Predicted Heat Strain) / NIOSH Heat Stress Criteria / ACGIH TLV; measure WBGT (Wet Bulb Globe Temperature), air temperature, humidity, radiant heat, air velocity; profile metabolic rate per ISO 8996.
Assess cold stress per ISO 11079 (IREQ - Insulation REQuired) / ACGIH TLV — wind chill index, exposure time at cold extremities; identify hypothermia / frostbite risk; align with cold-weather PPE per ISO 11079.
Specify work-rest regime per ACGIH TLV / NIOSH Heat Stress — work-rest ratio per WBGT and metabolic rate; specify hydration schedule (typically 4-8 oz every 15-20 minutes per OSHA Heat Illness Prevention).
Conduct illumination survey per IES Lighting Handbook / EN 12464-1 — illuminance (lux) measurement per task, uniformity, glare (UGR — Unified Glare Rating), colour rendering (Ra), flicker; align with task visual demand.
Specify engineering controls per ISO 7243 / EN 12464 — shading, reflective surfaces, ventilation, cooling (spot cooling, refrigeration), thermal insulation (cold work), lighting upgrade (LED, fixture replacement); align with energy efficiency.
Design medical surveillance — heat illness incidence tracking, pre-placement / periodic medical exam, biological monitoring; deliver training on heat / cold stress recognition, hydration, work-rest discipline; align with OSHA Heat Illness Prevention.

Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.