Industrial Hygiene Assessments: Noise (NRA), Chemical (CHRA, CEM) and Ergonomic (ERA)
Each assessment follows the regulation that requires it, is carried out by a DOSH-registered assessor where the law requires one, and ends with a written report for your records.
Who signs your report
Every report names the responsible registered assessor and their myKKP registration number, so you can verify it on the DOSH register.
Noise Risk Assessment (NRA)
For workplaces where employees may be exposed to excessive noise from presses, compressors, generators, grinders or production lines.
What we do
- Walk-through and review of processes, shifts and existing controls
- Area noise mapping across the workplace
- Personal noise dosimetry for representative worker groups
- Exposure calculation against the limits in the 2019 regulations
- Recommended engineering, administrative and hearing protection controls
What you receive
A written NRA report with the noise map, exposure results by worker group, recommended controls, a list of workers requiring annual training and audiometric testing, and the next review date.
Chemical Health Risk Assessment (CHRA)
For any work that may expose employees to chemicals hazardous to health: solvents, cleaning agents, adhesives, paints, resins and process chemicals.
What we do
- Chemical register and safety data sheet review
- Work unit mapping and evaluation of how workers are exposed
- Assessment of existing controls, ventilation and PPE
- Recommendations on controls, exposure monitoring, medical surveillance and training
What you receive
A written CHRA report and action plan, stating whether Chemical Exposure Monitoring or medical surveillance is needed, and when the assessment must be reviewed.
Chemical Exposure Monitoring (CEM)
Measures airborne chemical levels that workers are exposed to, when recommended by your CHRA.
What we do
- Sampling plan based on your CHRA
- Personal and area air sampling during normal work
- Laboratory analysis of samples
- Comparison with permissible exposure limits and recommended actions
What you receive
A monitoring report with results per worker group, comparison with limits, and the recommended monitoring interval.
Ergonomic Risk Assessment (ERA)
For manual handling, repetitive motion, awkward posture, vibration and long periods of sitting or standing.
What we do
- Initial ERA with the DOSH checklist for each work task
- Advanced ERA where required, using tools such as RULA, REBA, MAC, RAPP, ART and ROSA
- Practical control recommendations for workstations, lifting and task rotation
What you receive
A report with task risk scores and recommended controls, ready for your OSH committee.
Prefer to build this capability in-house? Train your staff through our Ergonomic Trained Person (ETP) course.
Priced per site, based on your scope
Every quote is based on the number of employees, work units or processes, sampling points and site location. Send us your headcount and a short process list, and we will reply with a written scope and quote.
Combine assessments in one visit
Many sites need more than one assessment. NRA, CHRA and ERA can be scoped together so the walk-through, interviews and reporting follow a single schedule.
Questions about assessments
How often must a noise risk assessment be reviewed?
At intervals of not more than 5 years under the Noise Exposure Regulations 2019, or earlier if machinery or processes change, or if hearing complaints arise. The registered assessor states the review date in the report.
What is the difference between CHRA and CEM?
A CHRA evaluates the health risk of each chemical and recommends controls. CEM is the actual measurement of worker exposure by air sampling, carried out when the CHRA recommends it.
What is the difference between initial and advanced ergonomic risk assessment?
An initial ERA is a checklist screening for risk factors such as awkward posture, manual handling, repetition and vibration. If the score exceeds the thresholds in the 2017 Guidelines, an advanced ERA is carried out with tools such as RULA, REBA or MAC.
Tell us about your workplace. We will reply with a written scope and quote.
Your headcount, location and site processes are all we need to get started.