KTW – Compatibility test for gaskets used in contact with hot and cold drinking water.

W270 – Microbial growth test to assess gaskets used in contact with hot and cold drinking water.

UBA – Compatibility test for gaskets used in contact with hot and cold drinking water.

ÖNORM B 5014-1 – Test for gaskets used in contact with hot and cold drinking water.

CLP – Certificate of Conformity to Positive Lists for gaskets used in contact with drinking water (for gaskets up to 63 mm in diameter)

ACS – Sanitary Conformity Certification (for >63 mm gaskets)

HYDROCHECK – For gaskets used in contact with hot and cold drinking water

EN 549 – Specification for rubber materials for seals and diaphragms for gas appliances and gas equipment.

EN 681 – Material requirements for pipe joint seals used in water and drainage applications.

EN 682 – Elastomeric seals. Material requirements for seals used in pipes and fittings conveying gas and hydrocarbon fluids.

W534 – Envisages that materials meet KTW standards for sensory evaluations and EN 681-1 for physical and mechanical evaluations. It also includes a compression set test in water for 3,000 hours at 110°C, with the compression set value being taken every 1,000 hours.

ZP 5101 – Certification program compatibility and permeation properties of elastomer materials for seals and diaphragms in gas appliances and installations against hydrogen for a content of up to 100 vol. % H2

BS 6920 – For gaskets used in contact with hot and cold drinking water.

BRL-K 17504/02 – Certification for gaskets used in contact with hot and cold drinking water

NSF 61 – For use in contact with hot and cold drinking water.

NSF 51 – for use in contact with food

UL 157 – Establishes requirements and criteria for the evaluation of gaskets used in contact with a range of end-products.

AS/NZS 4020 – For gaskets used in contact with hot and cold drinking water.