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ASTM D6099-08
Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates
3 стр.
Заменен
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Разработчик:
Зарубежные/ASTM
ICS:
83.040.01 Raw materials for rubber and plastics in general / Сырье для производства резины и пластмасс 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
Описание
Значение и использование

This test method can be used for research or for quality control to characterize aromatic isocyanates and prepolymers of moderate to high acidity. Acidity correlates with performance in some polyurethane systems.

Область применения

1.1 This test method determines the acidity, expressed as parts per million (ppm) of HCl, in aromatic isocyanate samples of greater than 100ppm acidity. The test method is applicable to products derived from toluene diisocyanate and methylene-bis-(4phenylisocyanate) (see Note 1).

Note 1—This test method is equivalent to ISO 14898, Test Method A.

Ключевые слова:
acidity; aromatic isocyanates; isocyanates; MDI; methylene diphenyldiisocyanate; polyurethane; raw materials; TDI; titration; toluene diisocyanate; Acidity, alkalinity, pH--plastics; Aromatic isocyanates; Polyurethane raw materials; Acidity, alkalinity, pH--plastics; Aromatic isocyanates; Polyurethane raw materials