Material Certified
The following table lists our compounds which are certified for special applications:
Gas appliances and equipment in houses respectively household appliances
| Approval | Certific. authority | Certific.Temperature range | Compound | Elastomer | Hardness | Colour |
| DIN EN 549 | DVGW | B1/H3 (0 up to +80 °C) | N8614AA | NBR | 90 ±5 Shore A | black |
| DIN EN 549 | DVGW | B2/H3 (-20 up to +80 °C) | N9026AA | NBR | 90 ±5 Shore A | black |
| DIN EN 549 | DVGW | B1/H3 (0 up to +80 °C) | N7000AA | NBR | 70 ±5 Shore A | black |
| DIN EN 549 | DVGW | E1/H3 (0 up to +150 °C) | V7500AC | FKM | 75 ±5 Shore A | brown |
| DIN EN 549 | DVGW | B2/H2 (-20 up to +80 °C) | N5017AA | NBR | 50 ±5 Shore A | black |
| DIN EN 549 | DVGW | B2/H2 (-20 up to +80 °C) | N6017AA | NBR | 60 ±5 Shore A | black |
| DIN EN 549 | DVGW | C2/H3 (-20 up to +100 °C) | H7007AR | HNBR | 70 ±5 Shore A | yellow |
| DIN EN 549 | DVGW | C1/H3 (0 up to +100 °C) | H7000AA | HNBR | 70 ±5 Shore A | black |
| DIN EN 549 | DVGW | B2/H3 (-20 up to +80 °C) | N7017AA | FKM | 70 ±5 Shore A | black |
DVGW (Deutscher Verein des Gas- und Wasserfaches) has been dedicated to the technical and economic development of water and gas professionals since its was founded in 1859, and has always attached special importance to safety, hygiene and environmental protection.The scope of the DVGW includes all products related to water supply and gas supply.
EN549: Rubber materials for seals and diaphragms for gas appliances and gas equipment.
Drinking water applications
| Approval | Certific. authority | Certific.Temperature range | Compound | Elastomer | Hardness | Colour |
| BS6920 | WRAS | up to 85°C | E6053AA | EPDM perox. | 60 ±5 Shore A | black |
| BS6920 | WRAS | up to 85°C | E7053AA | EPDM perox. | 70 ±5 Shore A | black |
| BS6920 | WRAS | up to 85°C | E9053AA | EPDM perox. | 90 ±5 Shore A | black |
| BS6920 | WRAS | up to 85°C | E7083AA | EPDM perox. | 70 ±5 Shore A | black |
| BS6920 | WRAS | up to 85°C | E8083AA | EPDM perox. | 80 ±5 Shore A | black |
| BS6920 | WRAS | up to 85°C | N8018AA | NBR perox. | 80 ±5 Shore A | black |
| BS6920 | WRAS | up to 85°C | N7018AA | NBR perox. | 70 ±5 Shore A | black |
| ACS | CARSO | E7083AA | EPDM perox. | 70 ±5 Shore A | black | |
| KTW | DVGW | E7083AA | EPDM perox. | 70 ±5 Shore A | black | |
| W-270 | DVGW | E7083AA | EPDM perox. | 70 ±5 Shore A | black | |
| NSF-61 | NSF | up to 82°C | E7083AA | EPDM perox. | 70 ±5 Shore A | black |
| NSF-61 | NSF | up to 82°C | N7018AA | NBR perox. | 70 ±5 Shore A | black |
| NSF-61 | NSF | up to 60°C | N7041AA | NBR sulf. | 70 ±5 Shore A | black |
| NSF-61 | NSF | up to 82°C | E7041AA | EPDM perox. | 70 ±5 Shore A | black |
| NSF-61 | NSF | up to 82°C | E7051AA | EPDM sulf. | 70 ±5 Shore A | black |
| NSF-61 | NSF | up to 82°C | E7042AA | EPDM perox. | 70 ±5 Shore A | black |
| NSF-61 | NSF | up to 82°C | S7031AB | VMQ | 70 ±5 Shore A | rust |
The WRAS (Water Regulations Advisory Scheme) play an important role in protecting public health, safeguarding water supplies and promoting the efficient use of water within customers’ premises across the UK. The scope of material certification testing includes plumbing faucets, valve parts, rubber products, plastics, etc. All materials that come into contact with water Materials that may be used to manufacture the equipment must comply with BS6920.
ACS (Attestation De Conformite Sanitaire) is the material safety approval required for materials and products in contact with drinking water in France. All products that come in contact with drinking water must pass ACS certification before they can be legally sold in France.
KTW (Kunststoffe und Trinkwasser), a German quality standard for rubber and plastic components in contact with drinking water.
NSF (The National Sanitation Foundation) was established in 1944 as an independent, non-profit, non-governmental organization. NSF is an authoritative organization in the field of public health and safety, which is dedicated to standard setting, product testing and certificationS that help protect food, water and the environment.
NSF/ANSI 61: Drinking Water System Components – Health Effects
Food contact and pharmaceutical industry
| Approval | Test by | Specification | Compound | Elastomer | Hardness | Colour |
| FDA 21 CFR | § 177.2600 | NBR | from Shore A 60~90 | Customized | ||
| FDA 21 CFR | § 177.2600 | EPDM | from Shore A 60~90 | Customized | ||
| FDA 21 CFR | § 177.2600 | VMQ | from Shore A 60~90 | Customized | ||
| FDA 21 CFR | § 177.2600 | FKM | from Shore A 60~90 | Customized | ||
| EC 1935/2004 | SGS Taiwan | ResAP(2004)4 | E7083AA | EPDM perox. | 70 ±5 Shore A | black |
| EC 1935/2004 | SGS Taiwan | ResAP(2004)4 | N7041AA | NBR sulf. | 70 ±5 Shore A | black |
| EC 1935/2004 | SGS Taiwan | ResAP(2004)4 | V7502AA | FKM bisphenol | 75 ±5 Shore A | black |
| USP Class VI – 121 °C | eurofins | Chapter 88 (in vivo) | V7092AP | FKM bisphenol | 70 ±5 Shore A | white |
| USP Class VI – 121 °C | eurofins | Chapter 88 (in vivo) | E7003AP | EPDM perox. | 70 ±5 Shore A | white |
The Food and Drug Administration (FDA or USFDA) is a federal agency of the United States Department of Health and Human Services. The FDA is responsible for protecting and promoting public health through the control and supervision of food safety, medicines, biological products, cosmetics, veterinary drugs, medical devices, and diagnostic products.
CFR 21.177.2600 means CFR - Code of Federal Regulations Title 21-FOOD AND DRUGS，PART 177 INDIRECT FOOD ADDITIVES: POLYMERS
§ 177.2600 - Rubber articles intended for repeated use.
1.Release their constituents into food at levels harmful to human health
2.Change food composition, taste and odour in an unacceptable way
Standard for safety-Gaskets and Seals
| Approval | Certific. authority | Certific.Temperature range | Compound | Elastomer | Hardness | Colour |
| UL157 | UL | -40~200°C | V7500AA | FKM bisphenol | 75 ±5 Shore A | black |
| UL157 | UL | -40~60°C | N7060AA | NBR sulf. | 70 ±5 Shore A | black |
| UL157 | UL | -55~80°C | F7004BU02 | FVMQ | 70 ±5 Shore A | light blue |
| UL157 | UL | -40~60°C | C7100AA | CR | 70 ±5 Shore A | black |
| UL157 | UL | -60~200°C | V7015AA | FKM perox. | 70 ±5 Shore A | black |
UL (Underwriters Laboratories Inc.):founded in 1894 is an independent, non-profit professional organization that conducts tests for public safety. The basic standard that covers the test methods used to investigate elastomeric gaskets and seals is ANSI/UL 157:the Standard for Safety of Gaskets and Seals.
Oil & gas application-standards for rapid gas decompression(RGD)
| Approval | Certific. authority | Compound | Elastomer | Hardness | Colour |
| NORSOK M710 | Element | V9117AA | FKM perox. | 90±5 Shore A | black |
| NORSOK M710 | Element | V9123AA | FKM bisphenol | 90±5 Shore A | black |
| NORSOK M710 | Element | V9118AA | FKM perox. | 90±5 Shore A | black |
| NORSOK M710 | Element | V9617AA | FKM perox. | 95±5 Shore A | black |
| NORSOK M710 | Element | V9623AA | FKM bisphenol | 95±5 Shore A | black |
| NORSOK M710 | Element | H9100AA | HNBR | 90±5 Shore A | black |
| NORSOK M710 | Element | H9120AA | HNBR | 90±5 Shore A | black |
| NORSOK M710 | Element | 9021A | FFKM | 90±5 Shore A | black |
| NACE TM0297 | Element | V9117AA | FKM perox. | 90±5 Shore A | black |
| NACE TM0297 | Element | V9154AA | Aflas | 90±5 Shore A | black |
| NACE TM0297 | Element | 9021A | FFKM | 90±5 Shore A | black |
| Total EP PVV 142 | Element | H9100AA | HNBR | 90±5 Shore A | black |
| Total EP PVV 142 | Element | V9117AA | FKM perox. | 90±5 Shore A | black |
| Total EP PVV 142 | Element | V9123AA | FKM bisphenol | 90±5 Shore A | black |
NORSOK M-710 Rev.2 Section 7.3 Annex B: “Qualification of non-metallic sealing materials and manufacturers – resistance to rapid gas decompression (RGD)”.
NORSOK M-710 Edition 3 and ISO 23936-2 “Petroleum, petrochemical and natural gas industries: Non-metallic materials in contact with media related to oil and gas production – Part 2: Elastomers”.
NACE TM0297 “Effects of high temperature, high pressure carbon dioxide decompression on elastomeric materials”.
TOTAL EP PVV 142, Appendix 8 “Elastomer O-ring seals explosion decompression type testing procedure”.
Elastomer sealing materials for wellhead and christmas tree equipment used in oil & gas drilling and production.
| Approval | Certific. authority | Certific.Grade | Compound | Elastomer | Hardness | Colour |
| API 6A | Element | FF/HH | V9117AA | FKM perox. | 90±5 Shore A | black |
| API 6A | Element | FF/HH | V9118AA | FKM perox. | 90±5 Shore A | black |
| API 6A | Element | FF/HH | V9123AA | FKM bisphenol | 90±5 Shore A | black |
| API 6A | Element | FF/HH | V9154AA | Aflas | 90±5 Shore A | black |
| API 6A | Element | FF/HH | V7617AA | FKM perox. | 75±5 Shore A | black |
| API 6A | Element | FF/HH | V7618AA | FKM perox. | 75±5 Shore A | black |
