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ASTM D7252-06

Заменен
Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates — 5 стр.
Область применения

1.1 This test method determines the percent by weight of monomeric isomers and total monomer in crude or modified isocyanates. The test method is applicable to methylene-bis-(4-phenylisocyanate) (MDI) and polymethylene polyphenylisocyanates (PMDI). (See Note 1.)

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.

Note 1

There is no known ISO equivalent to this standard.

ICS
83.100 Cellular materials / Поропласты
83.040.01 Raw materials for rubber and plastics in general / Сырье для производства резины и пластмасс в целом
19.020 Test conditions and procedures in general / Условия и методика испытаний в целом
Сборник ASTM
08.03 Plastics (III): D5117 – latest; Reinforced Plastic Piping Systems and Chemical Equipment; Plastic Building Products / Пластмасса (III): D5117 – и далее; Армированные пластиковые трубопроводные системы и химическое оборудование; Пластмассовые строительные изделия
Тематика
Plastics