UNI EN 751-3 : 1998
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SEALING MATERIALS FOR METALLIC THREADED JOINTS IN CONTACT WITH 1ST, 2ND AND 3RD FAMILY GASES AND HOT WATER - UNSINTERED PTFE TAPES
22-09-2022
30-11-1998
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Classification of PTFE tapes
5 Requirements
5.1 Requirements to be met by the PTFE tape as
received
5.2 Requirements to be met by the PTFE tape after
assembly
5.3 Re-test
6 Test material and documentation
6.1 Test material
6.2 Test documentation
7 Test methods
7.1 Test methods for PTFE tapes as received
7.2 Test of PTFE tapes after assembly
8 Marking and instructions
8.1 Marking on packages
8.2 Instructions
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