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ISO 4709:2000 pdf free

ISO 4709:2000 pdf free.Composition cork – Gasket material – Classification system, requirements, sampling, packaging and marking
ISO 4709 gives a classification system for composition cork intended to be used as gaskets in the mechanical industry. It provides a means for specifying or describing the relevant properties.
Since not all properties that contribute to gasket performance are included, the use of this system is limited to the selection of materials in accordance with specified requirements.
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.
ISO 633, Cork一Vocabulary.
ISO 2859-1, Sampling procedures for inspection by attributes一Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection.
ISO 4708, Composition cork一Gasket material一Test methods.
ISO 7322, Composition cork一Test methods.
ISO 9392, Agglomerated cork discs一Sealing behaviour.
This classification system is versatile enough to also cover new materials and test methods as they are introduced. It is based on the principle that non-metallic gasket materials should be described, as far as possible, in terms of specific physical and mechanical properties and that an infinite number of such descriptions can be formulated by using one or more statements, based on tests.
Users of gasket materials may, by selecting different combinations of different statements, specifty different combinations of desired properties. Suppliers may, likewise, report properties available in their respective products.
This classification system establishes letter or number symbols or both (“line call-out”) for various performance levels of each property or characteristic (see clause 5).
Various levels of specification or description may be established by increasing or decreasing the number of letter-numeral symbols used in the “Iine call-out”.
The specification or description of gasket materials, in this system, shall include a reference to this International Standard followed by six numerals, e.g. ISO 4709 (220340).ISO 4709 pdf download.

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