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NS EN 549 : 1ED 1995

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

RUBBER MATERIALS FOR SEALS AND DIAPHRAGMS FOR GAS APPLIANCES AND GAS EQUIPMENT
Superseded date

11-10-2019

Published date

12-01-2013

Foreword
Introduction
1. Scope
2. Normative references
3. Definitions
4. Manufacturer's declared information
5. Classification
6. Requirements
7. Test methods
Annex
A. (normative) Verification of components by physical
     and chemical testing
B. (normative) Verification of components by infra-red
     spectrometric method

Specifies requirements and associated test methods for vulcanized rubber materials used in gas appliance and equipment in contact with 1st, 2nd, and 3rd family combustible gases. Also establishes a classification based on temperature range and hardness. Applies to materials from which are manufactured homogeneous or reinforced diaphragms. Does not apply to seals and diaphragms for devices in gas transmission systems nor in equipment used in 1st and 2nd family gas distribution systems.

DevelopmentNote
Supersedes NS EN 278, NS EN 279 & NS EN 291 (08/2003)
DocumentType
Standard
PublisherName
Norwegian Standards (Norges Standardiseringsforbund)
Status
Superseded

Standards Relationship
NBN EN 549 : 1995 Identical
DIN EN 549:1995-04 Identical
I.S. EN 549:1995 Identical
EN 549:1994 Identical
NEN EN 549 : 1995 Identical
BS EN 549:1995 Identical
NF EN 549 : 1995 Identical
SN EN 549 : 1995 Identical
UNI EN 549 : 1996 Identical
UNE-EN 549:1996 Identical
ONORM EN 549 : 1995 Identical

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