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WRAS Certified Drinking Water O-Ring, Seals and Gaskets

Drinking Water O-Rings
 
 

Ge Mao Rubber Industrial Co., Ltd.
Tel: +886-4-7810288 Fax: +886-4-7810289
https://www.fdao-ring.com 
ask@gmors.com 
No. 15, Kung Yeh East 4th Rd., Lukang, Chang Hua 505, Taiwan, R.O.C.

WRAS Seals and Gaskets

WRAS Certified Drinking Water O-Ring, Seals and Gaskets

WRAS Certified in Accordance with BS 6920. Both in the United Kingdom and Northern Ireland, the use of materials and components in devices and equipment that comes into contact with drinking water has to undergo approval by WRAS (Water Regulations Advisory Scheme). WRAS requirements involve the testing for material safety and mechanical testing.

BS 6920 is the standard used for testing non-metallic material which comes into contact with potable water. It is made up of five separate tests to determine that the material do not impart negative odor or give rise to the growth of aquatic microorganisms.

The five individual tests include test for negative odour and flavour, microbial growth, cytotoxicity (destruction of living cells), water appearance, and material leach that may contaminate the water and cause harmful health effects. Mechanical testing is to determine the physical properties of the product. WRAS certification will be issued upon the successful completion of the testing requirements of BS 6920.¡@

Approval Certification Authority Certified Temperature Range Compound
Reference
Elastomeric Compound Shore Hardness Colour
BS6920 WRAS Maximum 85¢XC E6053AA EPDM Peroxide Cured Shore A (60¡Ó5) black
BS6920 WRAS Maximum 85¢XC E7053AA EPDM Peroxide Cured Shore A (70¡Ó5) black
BS6920 WRAS Maximum 85¢XC E9053AA EPDM Peroxide Cured Shore A (90¡Ó5) black
BS6920 WRAS Maximum 85¢XC E7083AA EPDM Peroxide Cured Shore A (70¡Ó5) black
BS6920 WRAS Maximum 85¢XC E8083AA EPDM Peroxide Cured Shore A (80¡Ó5) black
BS6920 WRAS Maximum 85¢XC N8018AA NBR Peroxide Cured Shore A (80¡Ó5) black
BS6920 WRAS Maximum 85¢XC N7018AA NBR Peroxide Cured Shore A (70¡Ó5) black
ACS CARSO ¡@ E7083AA EPDM Peroxide Cured Shore A (70¡Ó5) black
KTW DVGW ¡@ E7083AA EPDM Peroxide Cured Shore A (70¡Ó5) black
W-270 DVGW ¡@ E7083AA EPDM Peroxide Cured Shore A (70¡Ó5) black
NSF-61 NSF Maximum 82¢XC E7083AA EPDM Peroxide Cured Shore A (70¡Ó5) black
NSF-61 NSF Maximum 82¢XC N7018AA NBR Peroxide Cured Shore A (70¡Ó5) black
NSF-61 NSF Maximum 60¢XC N7041AA NBR Sulfur Cured Shore A (70¡Ó5) black
NSF-61 NSF Maximum 82¢XC E7041AA EPDM Peroxide Cured Shore A (70¡Ó5) black
NSF-61 NSF Maximum 82¢XC E7051AA EPDM Sulfur Cured Shore A (70¡Ó5) black
NSF-61 NSF Maximum 82¢XC E7042AA EPDM Peroxide Cured Shore A (70¡Ó5) black
NSF-61 NSF Maximum 82¢XC S7031AB VMQ Shore A (70¡Ó5) rust

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