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Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers (Withdrawn 2019)
Automaticky preložený názov:
Štandardná skúšobná metóda pre isokyanátových skupín v uretanovej materiáloch alebo prepolymér
NORMA vydaná dňa 1.12.2010
Označenie normy: ASTM D2572-97(2010)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.12.2010
Kód tovaru: NS-20782
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
dicyclohexylmethane-4,4-diisocyanate (rMDI), hexamethylene diisocyanate, isophorone diisocyanate (IPDI), polymeric MDI, toluene, 2,4-diisocyanate based intermediate, toluene, 2,4-diisocyanate based prepolymer, urethane intermediate, urethane prepolymer, 2,4-diphenylmethane diisocyanate, 4,4-diphenylmethane diisocyanate, 2,4&ndash,Diisocyanate based intermediate, Isobutyl alcohol, Isocyanates, Prepolymers, Toluene, Urethane intermediate/prepolymer, Urethanes
Significance and Use | ||
The percent NCO is used to establish unit ratios for stoichiometric reactions with co-reactants. |
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1. Scope | ||
1.1 This test method covers the determination of the isocyanate group (NCO) content of a urethane intermediate or prepolymer. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 8. |
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2. Referenced Documents | ||
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