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Standard Practice for Determination of Gels (Fisheyes) In General-Purpose Poly(Vinyl Chloride) (PVC) Resins
NORMA vydaná dňa 1.4.2019
Označenie normy: ASTM D3596-19
Dátum vydania normy: 1.4.2019
Kód tovaru: NS-948628
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
fisheyes, gels, poly(vinyl chloride) resin,, ICS Number Code 83.080.10 (Thermosetting materials)
Significance and Use | ||||
5.1 The gel (fisheye) in PVC resins is generally recognized as a hard particle of resin which will not fuse when the plastic mass is subjected to set conditions of hot processing. The number of unfused particles present is related to the conditions used. The presence of an excess of such particles is detrimental to many applications. |
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1. Scope | ||||
1.1 This practice provides a quantitative measure of the gels remaining in a flexible vinyl compound processed from general-purpose poly(vinyl chloride) (PVC) resins under a prescribed set of working conditions. 1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: There is no known ISO equivalent to this
standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||
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