ISO 4633:2015 pdf download.Rubber seals - Joint rings for water supply, drainage and sewerage pipelines一Specification for materials
1 Scope
ISO 4633 specifies requirements for materials used in vulcanized rubber seals for the following:
a) cold drinking-water supplies (up to 50 °C);
b) drainage, sewerage, and rainwater systems (continuous flow up to 45 °C and intermittent flow up to 95 °C).
The different designations of seals specified are defined according to their type, application, and requirements (see Table 3).
General requirements for finished joint seals are also given; any additional requirements called for by the particular application are specified in the relevant product standards, taking into account that the performance of pipe joints is a function of the seal material properties, seal geometry, and pipe joint design. This International Standard is intended to be used, where appropriate, with product standards which specify performance requirements for joints.
This International Standard is applicable to joint seals for all pipeline materials, including iron, steel, clay, fibre cement, concrete, reinforced concrete, plastics, and glass-reinforced plastics.
It is applicable to elastomeric components of composite or non-composite seals. In the case of composite seals for materials of hardness ranges from 76 IRHD to 95 IRHD, the requirements for elongation at break, compression set, and stress relaxation apply only when the material is participating in the sealing function or in the long term stability of the seal.
Joint seals made with an enclosed void as part of their design are included in the scope of this International Standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 48, Rubber, vulcanized or thermoplastic — Determination of hardness (hardness between 10 IRHD and 100 IRHD)
ISO 188, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 8 15-1, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 1: At ambient or elevated temperatures
ISO 8 15-2, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 2: At low temperatures
ISO 1431-1, Rubber; vulcanized or thermoplastic - Resistance to ozone cracking一Part 1: Static and dynamic strain testing
ISO 1817, Rubber; vulcanized or thermoplastic一Determination of the effect of liquids
ISO 2285, Rubber, vulcanized or thermoplastic一Determination of tension set under constant elongation,and of tension set, elongation and creep under constant tensile load
ISO 3302-1, Rubber一Tolerances for products一Part 1: Dimensional tolerances
ISO 3384-1:2011, Rubber, vulcanized or thermoplastic 一Determination of stress relaxation in compression一Part 1: Testing at constant temperature
ISO 3387, Rubber一Determination of crystallization effects by hardness measurements
ISO 6914, Rubber, vulcanized or thermoplastic一Determination of ageing characteristics by measurement of stress relaxation in tension
ISO 9691:1992, Rubber一Recommendations for the workmanship of pipe joint rings一Description and classification of imperfections.ISO 4633 pdf download.