How long is gas testing valid for ?

How Long Is Gas Test Atmospheres Training Valid For in Western Australia?

Workers in mining, construction, maintenance, utilities, oil and gas, manufacturing and shutdown environments are regularly asked whether their gas-testing qualification is still current.

The qualification commonly requested is:

MSMWHS217 – Gas test atmospheres

A frequent question is whether this qualification expires after two years. The correct answer is more nuanced than a simple expiry date.

In Western Australia, a nationally recognised Statement of Attainment for MSMWHS217 does not generally have a fixed legal expiry date. However, employers, mine sites, industrial facilities and principal contractors may require workers to refresh or demonstrate their competency at regular intervals.

The practical answer is:

The Statement of Attainment itself does not normally expire, but many Western Australian workplaces use a two-year refresher or verification period.

The worker must also remain competent, understand the gas detector being used and comply with current workplace procedures. A certificate issued several years ago may remain genuine, but it may not satisfy a particular employer’s currency requirements.

Does a gas test atmospheres ticket expire?

What workers often call a “gas-testing ticket” is usually a Statement of Attainment issued by a Registered Training Organisation after the person has successfully completed MSMWHS217 – Gas test atmospheres.

Unlike a high-risk work licence or driver’s licence, the Statement of Attainment does not normally have a printed expiry date. It records that the person was assessed as competent against the unit requirements at the time the assessment occurred.

This means the certificate does not automatically become invalid exactly two years after it was issued.

However, this should not be interpreted as lifetime authorisation to perform gas testing in every workplace. The employer or person conducting a business or undertaking must still ensure that the person has suitable knowledge, training, instruction and practical ability for the task being performed.

A worker may also need:

• current site-specific training

• familiarity with the detector being used

• knowledge of the gases that may be present

• an understanding of workplace alarm settings

• competence in bump testing and operational checks

• the ability to correctly interpret readings

• knowledge of the required response to an alarm or unsafe atmosphere.

The age of the certificate is therefore only one part of determining whether a person is competent to perform atmospheric testing.

Is gas-testing training legally valid for two years in WA?

There is no general provision in Western Australian work health and safety legislation stating that every MSMWHS217 Statement of Attainment expires after two years.

The two-year period commonly comes from employer rules, contractor-management systems, mining-company requirements and workplace refresher policies.

A site may state that gas-testing training must have been completed within the previous 24 months. Another workplace may use annual verification, while another may determine refresher intervals through a risk assessment and review of the worker’s experience.

These site requirements may be stricter than the minimum legal framework. A site is generally entitled to establish reasonable competency and currency requirements as part of its safety-management system.

Workers should therefore confirm the requirements of the employer, mine operator, principal contractor or site before starting work.

Why is a two-year refresher period so common?

Gas testing is a practical safety skill. It involves more than turning on a detector and waiting for a number to appear.

The operator must understand:

• what the detector is measuring

• whether the sensors are appropriate for the expected hazards

• what the displayed readings mean

• the limitations of the instrument

• where and how the atmosphere should be sampled

• whether continuous monitoring is required

• what action must be taken when an alarm activates.

These skills can deteriorate when they are not used regularly. Gas detectors, workplace procedures, exposure standards, alarm settings and equipment models may also change.

A two-year cycle gives employers a regular opportunity to check that workers can still use the equipment correctly and respond appropriately. It is a common administrative benchmark, but it should not replace a workplace-specific assessment of risk and competency.

Some workers may require refresher training sooner than two years. Others who regularly perform gas testing may be able to demonstrate ongoing practical currency, although they must still comply with their employer’s formal requirements.

What does Western Australian law require?

Western Australia’s Work Health and Safety framework requires employers and other PCBUs to provide workers with information, training and instruction that is suitable and adequate for:

• the nature of the work

• the risks associated with that work

• the control measures being used.

The information and instruction must also be provided in a way the worker can understand.

The WHS Regulations address hazardous atmospheres, airborne contaminants and atmospheric conditions in confined spaces. They require risks associated with hazardous atmospheres to be managed and establish controls relating to oxygen levels, flammable gases, vapours and harmful airborne contaminants.

For confined space work, WorkSafe WA states that air monitoring should be carried out by a competent person using a suitable and correctly calibrated gas detector. Testing may need to cover:

• oxygen content

• flammable contaminants

• harmful contaminants such as hydrogen sulphide and carbon monoxide.

These requirements focus on competence and safe work practices rather than the age of a training card alone.

What does “competent person” mean?

In general WHS terminology, a competent person is someone who has obtained the knowledge and skills needed to carry out a task through training, qualification or experience.

Holding MSMWHS217 is strong evidence that a worker has been formally assessed against a nationally recognised unit. However, the employer should also consider whether the worker remains competent in the actual workplace.

For example, a person may have completed training using a standard four-gas detector but later be asked to operate a detector with:

• different sensors

• different alarm settings

• a sampling pump and hose

• specialist photoionisation detection equipment

• different calibration procedures

• site-specific reporting requirements.

Additional instruction and familiarisation may be required before the person uses unfamiliar equipment, even when their Statement of Attainment is recent.

What does MSMWHS217 cover?

MSMWHS217 covers the skills and knowledge required to test a working atmosphere with electronic testing equipment and determine whether the atmosphere is safe for the proposed work.

The person must be able to interpret readings and take appropriate action based on those readings.

The unit includes preparing for gas testing, identifying hazards, selecting suitable equipment, carrying out testing, interpreting results, responding to abnormal conditions and maintaining the equipment in accordance with workplace procedures.

A properly delivered course should address matters such as:

• oxygen-deficient and oxygen-enriched atmospheres

• flammable gases and vapours

• lower explosive limits

• toxic gases and contaminants

• detector limitations

• alarm levels

• pre-use checks

• bump testing

• calibration requirements

• sampling methods

• testing at different levels

• recording and reporting results

• responding to unsafe readings.

Practical assessment is important. A person should be able to demonstrate that they can prepare, check and operate a gas detector rather than simply answer questions about it.

Is MSMWHS217 only for confined spaces?

No. Gas testing is frequently associated with confined space entry, but the unit can also apply to other areas where a hazardous atmosphere may exist.

Examples may include:

• tanks and vessels

• pits and trenches

• sewers and drains

• plant rooms

• process areas

• storage facilities

• areas affected by gas leaks

• locations where hot work is proposed

• enclosed or poorly ventilated work areas.

The workplace must determine what atmospheric hazards are reasonably foreseeable and what testing is necessary.

Does gas test training allow someone to enter a confined space?

Not by itself.

MSMWHS217 and confined space entry training are separate competencies.

MSMWHS217 addresses testing and interpreting an atmosphere. RIIWHS202E – Enter and work in confined spaces addresses the broader process of preparing for, entering, working in and exiting a confined space under an entry permit.

A worker who is required to enter a confined space and conduct gas testing may need both units.

Some personnel may only perform testing from outside the space and may not be required to enter. The exact units required should be determined by the person’s job role, workplace procedures and employer requirements.

When should gas test atmospheres training be refreshed?

Workers and employers should consider refresher training or reassessment in the following circumstances.

The site requires training within a set period

Many WA sites require gas-testing training completed within the previous two years. Some may specify a shorter period.

The site requirement should be confirmed before mobilisation.

The worker has not used a gas detector recently

A worker who completed training two years ago but has not handled a detector since may no longer be practically current.

The worker should be able to demonstrate detector checks, sampling, interpretation and response procedures before being authorised to perform the task.

Different equipment is introduced

Gas detectors vary between manufacturers and models. Display layouts, menus, pump arrangements, alarm indicators, charging procedures and test functions can differ.

Equipment familiarisation may be required even where the worker’s formal qualification remains current.

Workplace procedures or alarm settings change

Sites may change permit systems, reporting procedures, evacuation requirements, alarm settings or the types of gas being monitored.

Workers must be instructed in the current requirements.

The worker cannot demonstrate the required skills

A certificate should never be accepted as a substitute for actual competence.

If a worker cannot correctly carry out a pre-use inspection, bump test, atmospheric test or response to an alarm, retraining and reassessment should occur before the worker continues the task.

An incident or near miss has occurred

An incorrect reading, failure to test the full area, use of an unsuitable detector or failure to respond to an alarm should trigger a review.

The review may identify a need for individual retraining, broader workforce instruction or changes to the workplace system.

Is a bump test the same as calibration?

No.

A bump test exposes the detector to a known concentration of test gas to confirm that the sensors respond and that the alarms operate.

Calibration adjusts the detector so that its readings correspond correctly with a certified concentration of calibration gas.

Both are important, but they serve different purposes. The required frequency depends on the detector manufacturer’s instructions, site procedures, operating conditions and equipment-management system.

The validity of the worker’s Statement of Attainment should not be confused with the service, bump-test or calibration status of the gas detector.

A qualified worker using an overdue or defective detector is not carrying out an acceptable gas test.

Is a refresher course the same as completing the full unit again?

Not necessarily.

An experienced worker with recent practical experience and appropriate evidence may be suitable for a structured refresher and competency assessment.

A worker whose previous training is old, who has little recent experience or who cannot demonstrate the required skills may need to complete the full training and assessment process.

A short toolbox discussion or detector demonstration is not automatically equivalent to nationally recognised assessment against MSMWHS217.

Where a new Statement of Attainment is to be issued, the Registered Training Organisation must collect sufficient assessment evidence to determine that the learner currently meets the unit requirements.

Gas test atmospheres training with RTO 52610

Safety Heights and Rescue Training – RTO 52610 delivers face-to-face training for:

MSMWHS217 – Gas test atmospheres

Training is conducted at our Naval Base facility in Western Australia and can also be arranged for suitable client workplaces.

The course includes theoretical instruction and hands-on use of portable gas-detection equipment. Participants learn about oxygen levels, flammable atmospheres, lower explosive limits, hydrogen sulphide, carbon monoxide, detector checks, bump testing, calibration principles, atmospheric sampling and responses to unsafe readings.

MSMWHS217 can also be delivered with RIIWHS202E – Enter and work in confined spaces for workers who need both confined space entry and atmospheric-testing competencies.

Course details and available training dates can be found at:

www.rescue-training.com.au

Frequently asked questions

How long is MSMWHS217 valid for?

The nationally recognised Statement of Attainment does not generally have a fixed expiry date. Many WA workplaces require refresher training or verification every two years.

Does the law require gas-testing training every two years?

WA legislation does not establish a universal two-year expiry date for MSMWHS217. Employers and sites may impose their own currency requirements.

Can a site reject an older gas-testing certificate?

Yes. A site may require recent training, verification of competency, equipment familiarisation or additional site-specific instruction.

Is an online gas-awareness course equivalent to MSMWHS217?

Not necessarily. MSMWHS217 is a nationally recognised competency requiring assessment of both knowledge and practical skills. General awareness training may not meet the unit requirements.

Do I need confined space training as well?

You may need RIIWHS202E if you are required to enter and work in a confined space. MSMWHS217 alone primarily addresses atmospheric testing.

The practical answer

A Gas Test Atmospheres Statement of Attainment does not automatically expire after two years. However, the worker must remain competent, meet workplace requirements and be familiar with the equipment and procedures being used.

For many Western Australian workplaces, a two-year refresher or reassessment period is a practical benchmark. It is not a substitute for checking actual competence.

More frequent retraining may be required when the worker rarely performs gas testing, new equipment is introduced, procedures change or a performance concern is identified.

To discuss initial or refresher Gas Test Atmospheres training in Western Australia, contact Safety Heights and Rescue Training – RTO 52610 through www.rescue-training.com.au.

This article provides general information only. Workplace-specific requirements, risk assessments, equipment instructions and the directions of the employer, mine operator, principal contractor or site owner must also be followed.