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ASTM D4877-19
Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
Translate name
STANDARD published on 1.8.2019
The information about the standard:
Designation standards: ASTM D4877-19
Publication date standards: 1.8.2019
SKU: NS-968890
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Organic nitrogen compoundsAuxiliary materials and additives for plastics
Annotation of standard text ASTM D4877-19 :
Keywords:
APHA, color, isocyanates, platinum-cobalt scale polyurethane raw materials, Pt/Co scale,, ICS Number Code 71.080.30 (Organic nitrogen compounds), 83.040.30 (Auxiliary materials and additives for plastics)
Additional information
| Significance and Use | ||||||||||
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5.1 This test method can be used for research or for quality control to characterize isocyanates used in polyurethane products. 5.2 For toluene diisocyanate, results from this test method can relate to reactivity or performance in polyurethane systems. |
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| 1. Scope | ||||||||||
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1.1 This test method measures the color of clear liquids. It is applicable only to materials whose color-producing bodies have light-absorption characteristics similar to those of the platinum cobalt color standards used.1.2 The values stated in SI units are to be regarded as standard. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Note 1: This standard and ISO 6271-1 address the same subject
matter, but differ in technical content.
1.4 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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