ASTM D1786-21

Podrobné informace

Označení: ASTM D1786-21

Datum vydání: 01.07.2021

Stran: 2

Země: Americká technická norma

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Anotace

This specification covers toluene diisocyanate used as an ingredient in the production of polyurethane cellular materials. The three classes of toluene diisocyanate covered in this specification are based on isomer ratio, and the three types are based on acidity and hydrolyzable chloride. Materials shall be tested and the individual grades shall conform to specified values of isomer ratio, purity, APHA color, and total chlorine.


Keywords:
polyurethane, raw materials, specification, TDI, toluene diisocyanate,, ICS Number Code 83.080.20 (Thermoplastic materials)