BS ISO 2000:2014 pdf free
BS ISO 2000:2014 pdf free.Rubber, raw natural一Guidelines for the specification of technically specified rubber (TSR)
This International Standard provides guidance on the specification of technically specified rubber (TSR). A grading system is proposed, based on the origin of the natural rubber content and on properties exhibited by the rubber.
This International Standard is intended for use by parties involved in the procurement of TSR, and is intended to form a basis from which requirements for a particular case may be more closely specified.As such, it describes a number of criteria that need to be the subject of appropriate agreement between the interested parties.
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 247 Rubber一Determination of ash
ISO 248-1, Rubber, raw一Determination of volatile-matter content一Part 1: Hot-mill method and oven method
ISO 249, Rubber, raw natural一Determination of dirt content
ISO 289-1, Rubber; unvulcanized一Determinations using a shearing-disc viscometer一Part 1: Determination of Mooney viscosity
ISO 1656, Rubber, raw natural, and rubber latex, natural一Determination of nitrogen content
ISO 1795, Rubber, raw natural and raw synthetic一Sampling and further preparative procedures
ISO 2007, Rubber, unvulcanized一Determination of plasticity一Rapid plastimeter method
ISO 2930, Rubber, raw natural一Determination of plasticity retention index (PRI)
ISO 4660, Rubber, raw natural一Colour index test
ISO 17278, Rubber, raw natural一Determination of the gel content of technically specified rubber (TSR)
For the purposes of this document, the following terms and definitions apply.natural rubber obtained from the latex of Hevea brasiliensis (typically processed into block rubber), and having properties complying with the criteria for the grade concerned natural rubber whose viscosity is controlled, typically by treating it with viscosity-stabilizing agents,prior to or after the drying process
foreign matter retained on the sieve as described in ISO 249
natural rubber obtained from acid-coagulated latex or from latex naturally coagulated (i.e. by autocoagulation) in tapping cups or other suitable vessels.BS ISO 2000 pdf free download.
