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Asbestos air monitoring and clearance procedures


The objective of this qualification is to provide analysts and similar specialists to have the knowledge to to enable them to carry out inspection and testing of asbestos works that have been carried out to ensure they meet the correct standards required by HSG248.

CITB has developed this standard in discussion with industry


Minimum 4 days of 6 learning hours per day


The Control of Asbestos Regulations imposes duties relating to air testing and the cleanliness of asbestos enclosures and work areas. There is thus a need for analysts and similar specialists to have the knowledge to inspect and test asbestos works that have been carried out to ensure they meet the correct standards required by HSG248. The objective of this qualification is to provide learners with this knowledge to enable them to carry out inspection and testing. Possession of this qualification by staff will help organisations and companies meet the accreditation criteria for ISO 17025 (testing bodies).

The scope of this standard covers:

  • different types of asbestos
  • asbestos containing products
  • risks to health
  • legislation
  • method statements and risk assessments
  • decontamination procedures
  • removal and waste management procedures
  • health and safety procedures
  • asbestos fibre counting
  • asbestos air sampling
  • clearances
  • reoccupation of a site
  • asbestos fibres slides
  • air sampling equipment
  • inspection
  • assessment of removal
  • decontamination units
  • H type vacuum cleaners
  • personal protective equipment (PPE)
  • respiratory protective equipment (RPE)

Occupational relevance

Training delivered against this standard would be relevant to the following occupational groups:

  • analyst
  • analyst supervisor
  • analyst manager

Candidate pre-requisites

It is recommended that the candidate should have bulk analysis experience plus an awareness of the contents of HSG248 Asbestos: The Analysts’ Guide for sampling, analysis and clearance procedures.


As a minimum, course instructors must be able to demonstrate that, in relation to this standard, they have:

  • a train the trainer or instructional techniques course certificate e.g. NVQ Level 3 Learning and Development or higher 
  • successfully completed training to this standard 
  • at least 3 years relevant experience
  • a verifiable CV.


Delivery may be in an on or off the job environment.

All materials and equipment must be of a suitable quality and quantity for candidates to achieve learning outcomes, and must comply with relevant legislation.

The class size and candidate/instructor ratio must allow training to be delivered in a safe manner and enable candidates to achieve the learning outcomes.

The following delivery methods may be used in the delivery of this standard:

  • a mixture of classroom and demonstration and practice

This standard is considered to contain 51 per cent or more practical learning. 

This standard is considered to be set at an advanced level.


For the successful completion of training, candidates must complete an end of course practical assessment or knowledge test that measures the learning outcomes and has a pass or fail criteria.

Quality assurance


CITB will gain assurance through the third party’s quality arrangements. 

 Approved Training Organisations will be required to supply confirmation of approval (centre approval and scheme approval) with the related third party awarding organisation or body. In most cases this will be an approval certificate provided by the third party awarding organisation or body, listing the routes, qualifications and categories they are approved to deliver. In addition, a copy of the most recent external quality assurance monitoring report will be required, relating to the standard that you wish to be approved for.

This information will be reviewed by CITB’s quality assurance team. Approval will be subject to the required third party documentation being supplied by you. As part of the quality assurance checks, CITB may confirm the accuracy of documentation with the issuing organisation.


There is no renewal or refresher requirement.

Approval date

To be confirmed

Review cycle

Either on request or in 3 year(s) from approval date.

Learning outcomes

Learning outcomes
The candidate will be able to: Additional guidance to support learning outcome
Explain the health risks, uses and properties of asbestos.
  • State the properties and characteristics of different types of asbestos.
  • Review the types and uses of asbestos containing products.
  • Review the risks to health from asbestos exposures.
Describe legislation relating to asbestos.
  • Summarise appropriate legislation relating to the control and use of asbestos.
Describe procedures for the management of risk in relation to asbestos removal/abatement.
  • Outline the purpose of method statements and risk assessments and the requirements of training and site information.
  • Describe decontamination procedures. 
  • Describe asbestos removal and waste management procedures. 
  • Outline health and safety procedures for reducing the risk from asbestos.
Explain the theory of asbestos fibre counting and air sampling.
  • Outline procedures for asbestos fibre counting.
  • Outline procedures for asbestos air sampling. 
Describe procedures relating to asbestos clearance.
  • State the requirements for clearances.
  • Outline procedures for reoccupation of a site following asbestos removal.
Carry out asbestos fibre counting and air sampling.
  • Set up asbestos fibre slides and count fibres using phase contrast microscopy to RICE category B performance.
  • Use asbestos air sampling equipment appropriately.
Carry out clearance procedures.
  • Inspect asbestos sites and enclosures.
  • Assess an asbestos removal site prior to reoccupation.
Explain decontamination requirements and use of related equipment.
  • Set up, use and maintain decontamination units. 
  • Set up, use and maintain H type vacuum cleaners.

Additional information

Other organisations who work with asbestos awareness