UK Approvals and Certifications

NSF International has vast experience in testing for a variety of certification and approval organizations.

We test against a range of industry standards for the assessment of mechanical, health and hygiene requirements for water products sold into the United Kingdom.

REG4 Certification

The NSF REG4 certification scheme provides an alternative to water fittings compliance for the UK. Certification to this scheme is valuable for manufacturers looking to prove compliance with Regulation 4, a section in these UK regulations:

  • Water Supply (Water Fittings) Regulations 1999
  • Water Supply (Water Fittings) (Scotland) Byelaws 2014
  • Water Supply (Water Fittings) Regulations (Northern Ireland) 2009

This scheme covers mechanical products with drinking water contact such as valves, backflow prevention devices, taps, mixers, shower heads, pipes and fittings, tanks, cisterns, water meters and many others. NSF REG4 approval also includes non-metallic products such as rubbers, coatings, cements, resins and sealants.

WRAS Approval

We offer testing services needed to comply with the Water Regulations Advisory Scheme (WRAS) for products in contact with drinking water. After our testing is complete, we send the test reports to the WRAS agency, which will provide the approval.

BS 6920

NSF tests products for compliance to BS 6920, a British standard that ensures the suitability of non-metallic products for use in contact with water intended for human consumption.

Testing Capabilities
Our lab in South Wales is one of the largest specialized test laboratories for water fittings. Watch a video about our testing capabilities.