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ASTM D2572-97(2003)e1
Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers
2 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
71.080.99 Other organic chemicals / Органические химические вещества прочие
Сборник (ASTM):
06.03 Paint –– Pigments, Polymers, Resins, Naval Stores, Cellulosic Esters, and Ink Vehicles / Красители – Пигменты, Быстровысыхающие масла, Полимеры, Смолы, Канифольно-скипидарные продукты, Целлюлозный полимер, Связующее вещества для красок
Тематика:
Paints & Related Coatings
Описание
Значение и использование

The percent NCO is used to establish unit ratios for stoichiometric reactions with co-reactants.

Область применения

1.1 This test method covers the determination of the isocyanate group (NCO) content of a urethane intermediate or prepolymer.

1.2 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.

Ключевые слова:
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