Approvals for AFM 34/2
DVGW Registration Notice and Certificate
The DVGW (German Association of Gas and Water Trade) also certifies sealing materials for the German gas suppliers.
H2 tested acc. to certification programme 5123 of DVGW CERT GmbH
Supplementary tests for gasket materials against a hydrogen content of up to 100 % by volume
KTW-BWGL
Evaluation criteria for plastics and other organic materials in contact with drinking water (incl. microbiological suitability DIN EN 16421)
WRAS – Water Regulations Approval Scheme
Certification of gasket materials for use in drinking water (acc. to British Standard BS 6920)
DIN 30653 (formerly VP 401)
Seals with higher thermal resistant for unions and flanges in connection with gas meters and pressure regulators as well as flange connections in gas installations
Grade X
according to British Standard BS 7531