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  • ASTM
    D6099-13 Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates
    Edition: 2013
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Description of ASTM-D6099 2013

ASTM D6099 - 13

Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates

Active Standard ASTM D6099 | Developed by Subcommittee: D20.22

Book of Standards Volume: 08.03




ASTM D6099

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.

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 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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D883 Terminology Relating to Plastics

E180 Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ISO Standards

ISO14898 Plastics--Aromatic isocyanates for use in the production of polyurethane--Determination of acidity Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.

Keywords

acidity; aromatic isocyanates; isocyanates; MDI; methylene diphenyldiisocyanate; polyurethane; raw materials; TDI; titration; toluene diisocyanate;


ICS Code

ICS Number Code 83.040.01 (Raw materials for rubber and plastics in general)


DOI: 10.1520/D6099

ASTM International is a member of CrossRef.

ASTM D6099

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About ASTM

ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.
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