ISO 2230-2002 pdf free.Rubber products – Guidelines for storage.
ISO 2230 gives guidelines for the inspection, recording procedures. packaging and storage of products. assemblies and components made from vulcanized or thermoplastic rubber prior to being put into circulation.
It is applicable to both solid and cellular rubber products prepared from dry raw rubber, latex or other sources. Its not intended for use with raw rubber in bale, liquid (solution or emulsion) or particulate form, storage guidance for which is given in ISO 7664.
The recommendations for packaging form an integral part of the controlled storage procedure, as well as providing means of identifying the material and product.
2 Normative references
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 EC maintain registers of currently valid International Standards.
ISO 1629:1995, Rubber and latices Nomenclature
ISO 4591:1992, Plastics — Film and sheeting — Determination of average thickness of a sample. and average Thickness and yield of a roll, by gravimetric techniques (gravimetrec thickness)
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1 Initial storage period
the maximum period, starting from the time of manufacture, for which a rubber product, appropriately packaged, may be stored under specified conditions before a sample needs to be inspected or re-tested
3.2 extension storage period
the period for which a rubber product, appropriately packaged, may be stored after the initial storage period, before further inspection and re-testing is necessary
4 Classification of rubber types according to their relative susceptibility to deterioration
4.1 General
Unless otherwise specified in the product specification, rubber products should be classified (for the purpose of storage) in terms of the relative susceptibility to deterioration of the rubber type used, as follows:
Group A: rubbers with moderate susceptibility to deterioration by ageing, as listed in Table 1.
The following additional rubbers are classified as group A:
— all new vulcanizable rubbers until their storage capabilities have been established:
— all thermoplastic rubbers until their storage capabilities have been established:
— any rubber that cannot be classified as group B or group C.
Group B: rubbers with low susceptibility to deterioration by ageing. as listed In Table 2.
Group C: rubbers which are highly resistant to deterioration by ageing, as listed in Table 3.ISO 2230 pdf download.
Tags: Rubber products
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