Chemical and water cleaning, health, safety and environment


The purpose of this standard is to provide the candidate with the knowledge of chemical and water cleaning used in façade preservation, in relation to: health, safety, and the environment.

CITB has developed this standard in discussion with industry


Minimum 1 day of 6 learning hours


The purpose of this standard is to provide the candidate with the knowledge of chemical and water cleaning used in façade preservation, in relation to: health, safety, and the environment.

The scope of this standard covers:

  • personal protective equipment (PPE) as per legislation, site rules, and risk assessment
  • select, maintain, and store PPE
  • temperature effects on: water, chemicals, equipment, and façade
  • handling and storage of chemicals
  • how incorrectly-selected/applied chemicals affect the façade
  • pre-wash, dwell times, and neutralisation
  • spillages and injuries
  • COSHH safety data sheets (SDS)
  • how to control run-off of chemicals, bi-products, and water
  • handling spillages and emergencies
  • surface protection.

Occupational relevance

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

  • operative and craft
  • supervision.

Candidate pre-requisites

There are no candidate pre-requisites as part of this standard.


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
  • Successfully completed training to this standard 
  • At least 2 years relevant industrial experience
  • A verifiable CV.


The following method(s) may be used in the delivery of this standard:

  • classroom

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.

This standard is considered to contain 51 per cent or more theoretical training.


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

Quality assurance against this standard will require initial approval of the training organisation and their content mapped to the standard. 

CITB will also conduct an approval intervention, either desk-based or centre visit, to ensure the training organisation can meet the requirements of the Training Standard. 

Approved training organisations (ATOs) will be required to present information on records of training and assessment upon request to CITB for desk-based analysis. They will also be visited annually by the CITB quality assurance team.


There are no mandatory renewal or recommended refreshment requirements for this standard.

Approval date

November 2018

Review cycle

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

Learning outcomes

The candidate will be able to Additional guidance to support learning outcome

Define appropriate PPE as per legislation, site rules, and risk assessment

Examples of:

  • SDS sheets for COSHH
  • PPE
  • local authority requirements
  • spill response procedures


Company procedure examples for:

  • spill response
  • first aid
  • emergencies

Select, maintain, and store PPE

Describe how temperature effects: water, chemicals, equipment, and the façade

Describe the handling and storage requirements of: acids, alkalis, and solvents

Describe how incorrectly-selected/applied chemicals can affect the façade

Describe pre-wash, dwell times, and neutralisation

Describe how to control of run-off and comply with local authority requirements for waste bi-products

Describe how to respond to spillages and injuries

Interpret COSHH safety data sheets (SDS)

Describe how to control the run-off of chemicals and water

Describe where company procedures are for handling spillages and emergencies

Describe surface protection

Additional information about this standard


HSE Water jetting guides

Training at height

  • BS 8454:2006 Code of practice for delivery of training & education for work at height and rescue

Advisory Committee for Roof Safety

Work at Height Safety Association

  • View WAHSA technical guidance notes. These are a free resource, provided and maintained by WAHSA and its member companies for reference. They assist specifiers, managers, and end users of fall protection equipment. 

Health and Safety Executive (HSE) Working at height guides

HSE guides


See relevant legislation

  • Health and Safety at Work etc Act (HSWA) 1974
  • The Work at Height Regulations (WHR) 2005
  • Work at Height (Amended) 2007
  • Personal Protection Equipment (PPE) Regulations 2002
  • Personal Protection Equipment (PPE) at Work Regulations 1992
  • Provision and Use of Work Equipment Regulations (PUWER) (1998 UK 1999 NI)
  • Control of Substances Hazardous to Health Regulations (COSHH )2002
  • Lifting Operations and Lifting Equipment Regulations (LOLER) 1998
  • Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR ) 1995
  • Construction (Design and Management) Regulations (CDM) 2015
  • Construction (Health, Safety and Welfare) Regulations 1996
  • Manual Handling Operations Regulations 1992 as amended 2002
  • Control of Noise at Work Regulations 2005
  • Control of Vibration at Work Regulations 2005

Building regulations

  • Building and Buildings, England and Wales: The Building Regulations 2010.
  • The Building (Scotland) Regulations 2004
  • Statutory Rules of Northern Ireland.

British standards masonry

View British standards on the BSI website

  • BS 8000: 2013 Workmanship on construction sites.
  • BS 8437: 2005 Code of practice for selection, use and maintenance of personal protection systems
  • BS EN 12810-1:2003. Facade scaffolds made of prefabricated components. Product specifications
  • BS EN 12810-2:2003. Facade scaffolds made of prefabricated components. Structural design
  • BS EN 12811-1:2003. Temporary works equipment. Scaffolds. Performance and general design