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Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates
Translate name
STANDARD published on 1.8.2018
Designation standards: ASTM D6099-18
Note: WITHDRAWN
Publication date standards: 1.8.2018
SKU: NS-857426
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Keywords:
acidity, aromatic isocyanates, isocyanates, MDI, methylene diphenyldiisocyanate, polyurethane, raw materials, TDI, titration, toluene diisocyanate,, ICS Number Code 83.040.01 (Raw materials for rubber and plastics in general)
Significance and Use | ||||||||
5.1 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. |
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1. Scope | ||||||||
1.1 This test method determines the acidity, expressed as parts per million (ppm) of HCl, in aromatic isocyanate samples of greater than 100–ppm acidity. The test method is applicable to products derived from toluene diisocyanate and methylene-Note 1: This test method is equivalent to ISO 14898, Test Method A. 1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||
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