The Standing Committee of Analysts

The Standing Committee of Analysts


New July 2020

For our latest News and Publication of MWAM (2020) Part2 The determination of Legionella bacteria in waters and other environmental samples – Culture Methods for their detection and enumeration


New June 2020

The Microbiology of Drinking Water - Part 7 - Methods for the enumeration of heterotrophic bacteria (2020)


New October 2019

Metals in Drinking Waters by ICP-OES (2018)

Metals in Clean Waters by ICP-MS (2018)

The Determination of Selected Taste and Odour Causing Contaminants in Drinking Waters by GCMS (2017)

The Identification of Volatile Organic Compounds in Raw and Potable Waters by GCMS (2019)

The determination of Legionella bacteria in waters...culture methods (2019) Part 2

The determination of Legionella bacteria in waters...qPCR (2019) Part 3



New April 2019

Updated SCA UoM Book

Estimation of Uncertainty of Measurement for Chemical and Physico-chemical Determinands in Drinking Water - Feb 2019 V2

Uncertainty of Measurment Spreadsheet - Feb 2019 V2

Summary of Changes for UoM Feb 2019 V2





New Feb 2019

Draft Metals in Clean Waters by ICP-MS(KD draft6 Jan18)





Archive Updated October 2019.

(Eight old methods located)

All historical methods, (known to be available), can be found here in the Archive.


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Terms Of Reference


Newly Available Books:

The following books are new to the SCA library

·         The Quantification of Asbestos in Soil (2017) Draft
·         The preparation and pre-treatment of potentially contaminated soils and associated materials (2015)
·         The determination of N-nitrosodimethylamine in drinking waters (2014)

The following books are replacements in the SCA library

·         MoDW (2014) Part 11 The Determination of Taste and Odour in Drinking Water                                                    (replaces current Part 11)
·         The Microbiology of Water and Associated Materials (2017) Practices and Procedures for Laboratories                (replaces current Part 13)





The Standing Committee of Analysts (SCA) exists to provide authoritative guidance on methods of sampling and analysis of waters and effluents, sewage sludges, sediments, soils (including contaminated land) and biota. Where appropriate, guidance on the sampling and analysis of air will also be produced. The primary duty of SCA will be to develop and publish recommended analytical methods. This will not include the provision of advice on, or interpretation of results. All methods published by the SCA should be capable of satisfying a regulatory demand, be fit for purpose and represent best practice within the United Kingdom (UK).
However, validation data published with methods represents performance under a particular set of circumstances and is provided for illustrative purposes only. It is incumbent on users of SCA methods to assess performance on their equipment, in their laboratories, with their personnel.



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Terms Of Reference


The Standing Committee of Analysts represents the collective knowledge of the UK in the provision of methodology which is given and shared freely for the purpose of ensuring quality and consistency in the chemical and microbiological analysis of water, waste water and related materials*.
Clear, up to date methodology produced by experts within their fields is key to the provision of robust, repeatable and accurate data. This is ever more important in the face of significant challenges from Regulations and Customers, and the potential threat of legal action. Achieving and maintaining documents of the required standard requires the contribution of the companies and organisations that will benefit from them.
In this website, the SCA provide all methodology free to access, an achievement of which will ensure  that  the highest standards of methodology are available to analysts in the UK, and for use throughout the world.