Sigma-HSE Confirms Two Further ISO/IEC 17025 Laboratory Tests

WINCHESTER, U.K. - May 28, 2025 - PRLog -- Sigma-HSE can announce that after a recent successful visit by the United Kingdom Accreditation Service (UKAS) to our Winchester based laboratory, Sigma-HSE UK has added two new tests to their accredited list.

The International Organisation for Standardization (ISO) states that the ISO/IEC 17025 certification 'enables laboratories to demonstrate that they operate competently and generate valid results, thereby promoting confidence in their work both nationally and around the world.'

Alongside the current range of Industrial Explosion Hazard tests, Sigma-HSE can now offer the below tests accredited to ISO/IEC 17025:

Differential Scanning Calorimetry (DSC)

ASTM E 537-24 - Standard Test Method for Thermal Stability of Chemicals by Differential Scanning Calorimetry

Accelerating Rate Calorimetry (ARC)

ASTM E 1981-22 - Standard Guide for Assessing Thermal Stability of Materials by Methods of Accelerating Rate Calorimetry

Dr Oliver Armstrong, Sigma-HSE's
Manager comments: "The addition of these two new test methods from our Chemical Process Evaluation portfolio strengthens our offering at Sigma-HSE for assisting our client's needs in assessing their processes, ensuring safe scale-up of new syntheses and processes from R&D and ensuring old processes are operated on appropriate plant. This approval for ISO 17025 accreditation recognises the stringent calibration, documentation and quality practices at Sigma-HSE under which all testing is performed, and give clients further confidence in our testing results."

Sigma-HSE offers a solution to the cost and time inefficiencies of traditional process safety testing. We are the only independent testing laboratory in the UK that can offer tests to ISO/IEC 17025 standards, so you can make faster and more informed process safety decisions using our high-quality data.

Sidenote: The recent visit from UKAS also confirmed that Sigma-HSE UK has retained its ISO/IEC 17025 accreditation for its core combustible dust and powder tests.

You can access our confirmed detail of accreditation by UKAS here (https://www.ukas.com/wp-content/uploads/schedule_uploads/...).

ENDS

Sigma-HSE UK laboratories' ISO/IEC 17025 accreditation has been maintained for testing using the following test methods:

Minimum Ignition Energy (MIE)

BS EN ISO/IEC 80079-20-2:2016

Minimum Ignition Temperature (MIT)

BS EN 50281-2-1: 1999

BS EN ISO/IEC 80079-20-2:2016

Layer Ignition Temperature

BS EN 50281-2-1: 1999

BS EN ISO/IEC 80079-20-2:2016

Minimum Explosive Concentration

BS EN 14034-3: 2006

Determination of Pmax

Using Annex C 20-litre sphere

BS EN 14034-1: 2004

Determination of Kst

BS EN 14034-2: 2006

Limiting Oxygen Concentration

BS EN 14034-4: 2004

Dust Combustibility

BS EN ISO/IEC 80079-20-2:2016: 7.2 using 20 litre sphere

Differential Scanning Calorimetry (DSC)

ASTM E 537-24

Accelerating Rate Calorimetry (ARC)

ASTM E 1981-22

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