United Kingdom
Tonkin Materials Testing
25A New North Road, Exmouth, EX8 1RU, Devon, United Kingdom
UKAS|2194ISO/IEC 17025Register collected 2026-09-11
Certificates
1
Scope items
6
Locations
1
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Register record
- UKASCollected
- 2194Active
Certificates and scope
1UKAS
ISO/IEC 17025
Active2194
Accredited scope, certificate 2194
| Discipline | Method | Matrix | Range |
|---|---|---|---|
| Materials Testing | BS EN 932-1:1997 Site Sample reduction - using a riffle box - by quartering BS EN 932-2:1999 Site Laboratory Particle size distribution - sieving method BS EN 933-1:2012 Laboratory Classification test for the constituents of coarse recycled aggregate BS EN 933-11:2009 Laboratory Water content BS EN 1097-5:2008 Laboratory BITUMINOUS MIXTURES for roads and other paved areas Sampling from - around the augers of the paver - workable material in heaps BS EN 12697-27:2017 Site Sampling of finished material - core cutting method BS EN 12697-27:2017 Site Sampling of coated chippings from stockpiles BS EN 12697-27:2017; BS EN 12697-28:2020 Site Laboratory Temperature of Bituminous Mixtures - in laid material - in a heap BS EN 12697-13:2017 incorporating corrigendum July 2022 Site Temperature of Bituminous Mixtures - in a paver BS EN 12697-13:2017 incorporating corrigendum July 2022; BS EN 12697-1:2020 Laboratory Particle size distribution BS EN 12697-2:2015; ISO/IEC 17025:2017 Schedule of Accreditation issued by United Kingdom Accreditation Service 2; IEC 17025 | Drinking water | - |
| Materials Testing | BS 1377-1; BS 1377-9; ISO/IEC 17025:2017 Schedule of Accreditation issued by United Kingdom Accreditation Service 2; IEC 17025; In-house Method No | Ambient air | - |
| Materials Testing | BS EN ISO 17892-1:2014 Laboratory Determination of particle size distribution - Sieving method BS EN ISO 17892-4:2016; BS EN 12697-6:2012 Laboratory Air void content BS EN 12697-8: 2018 Laboratory Determination of the thickness of a bituminous pavement - destructive measurement BS EN 12697-36:2022 Laboratory Pavement surface macrotexture depth using a volumetric patch technique BS EN 13036-1:2010 Site Surface regularity using a rolling straight-edge Specification for Highway Works HMSO February 2016 Clause 702 Site Surface regularity using a rolling straight-edge TRRL Supplementary Report 290:1977 Site ROAD PAVEMENT SURFACES Pavement surface macrotexture depth using a volumetric patch technique BS EN 13036-1:2010 Site Texture depth - by the sand-patch method BS 598-105:2000 Site Surface regularity using a rolling straight-edge Specification for Highway Works HMSO February 2016Clause 702 Site Surface regularity using a rolling straight-edge TRRL Supplementary Report 290:1977 Site GEOTECHNICAL INVESTIGATION and TESTING - Laboratory testing of soil Water content BS EN ISO 17892-1:2014 Laboratory Determination of particle size distribution - Sieving method BS EN ISO 17892-4:2016; BS 598-105; ISO/IEC 17025:2017 Schedule of Accreditation issued by United Kingdom Accreditation Service 2; ISO 17892-1:2014 Laboratory Determination of particle size distribution - Sieving method BS EN ISO 17892-4:2016 | Drinking water | - |
| Materials Testing | ISO/IEC 17025:2017 | Aggregates | - |
| Materials Testing | BS EN 12697-5:2018; BS EN 12697-6:2020 Laboratory Air void content BS EN 12697-8: 2018; BS EN 12697-9: 2002 BS EN 12697-6: 2020 BS EN 12697-32: 2019 Laboratory Determination of the thickness of a bituminous pavement - destructive measurement BS EN 12697-36:2022 Laboratory Binder volume BS 594987:2024 Laboratory In-situ density BS 594987:2024; BS EN 12697-27:2017 Site Maximum density - Volumetric method BS EN 12697-5:2018; BS 594987 | Air | - |
| Materials Testing | BS 1377-2; BS 1377-9; ISO/IEC 17025:2017 Schedule of Accreditation issued by United Kingdom Accreditation Service 2; IEC 17025 | Oil | - |
Ranges are reproduced from the accredited scope document as published. An absent range means the register did not state one.
Location
Labs with overlapping accredited scope in United Kingdom
- Celtest CompanyGwynedd · ~256 kmUKASShares 6 accredited methods and materialsBS 1377-2BS 1377-9Aggregates
- Construction Testing SolutionsLeicester · ~274 kmUKASShares 6 accredited methods and materialsBS 1377-2BS 1377-9Aggregates
- ACS Testing Limited also trading as XtraTecDorset · ~78 kmUKASShares 5 accredited methods and materialsBS 1377-2BS 1377-9Aggregates
- SOCOTEC UKMiddlesex · ~243 kmUKASShares 5 accredited methods and materialsBS 1377-2BS 1377-9Ambient air
- I2 Analytical Ltd Trading as Normec I2 AnalyticalHertfordshire · ~268 kmUKASShares 5 accredited methods and materialsBS 1377-2AggregatesAmbient air
Accreditation data refreshed from the UKAS register on .
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