Standard
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AS 681.4-2008
[Current]Elastomeric seals — Material requirements for pipe joint seals used in water and drainage applications, Part 4: Cast polyurethane sealing elements
Specifies requirements for materials used in factory-cast polyurethane sealing elements used in joints for drainage, sewerage and rainwater systems and non-potable water supply for continuous flow up to 45 degrees Celsius.
Published: 05/02/2008
Pages: 11
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 Scope
2 Normative references
3 Material requirements
4 Requirements
4.1 Materials
4.2 Finished seal requirements
4.2.1 Dimensional tolerances
4.2.2 Imperfections and defects
4.2.3 Hardness
4.2.4 Tensile strength and elongation at break
4.2.5 Compression set in air
4.2.5.1 General
4.2.5.2 Compression set at 23 °C and 70 °C
4.2.5.3 Low temperature compression set at -10 °C
4.2.6 Accelerated ageing in air
4.2.7 Stress relaxation in compression
5 Test pieces and temperature
5.1 Preparation of test pieces
5.2 Test temperature
6 Factory production control
7 Factory product control tests
7.1 Sampling
7.2 Routine tests
7.3 Type tests
8 Marking
Annex ZA
ZA.1 Scope and clauses of the European Standard addressing the essential characteristics of the EU Construction Products Directive
ZA.2 Systems of attestation of conformity
ZA.3 CE Marking
Cited references in this standard
[Superseded]
Rubber, vulcanized or thermoplastic — Preparation of samples and test pieces — Part 1: Physical tests
[Current]
Sampling procedures for inspection by variables — Part 6: Specification for single sampling plans for isolated lot inspection indexed by limiting quality (LQ)
[Superseded]
Rubber, vulcanized or thermoplastic — Determination of stress relaxation in compression at ambient and at elevated temperatures
[Current]
Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection — Technical Corrigendum 1
Content history
EN 681-4:2000
DR 06714
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