ASTM D6099-08

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

STANDARD published on 15.11.2008

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The information about the standard:

Designation standards: ASTM D6099-08
Note: WITHDRAWN
Publication date standards: 15.11.2008
SKU: NS-33765
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D6099-08 :

Keywords:

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

Additional information

Significance and Use

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 100–ppm acidity. The test method is applicable to products derived from toluene diisocyanate and methylene-bis-(4–phenylisocyanate) (see Note 1).

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

2. Referenced Documents

D883-26a	Standard Terminology Relating to Plastics (Includes all amendments and changes 6/15/2026).
E180-03	Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009)
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ISO 14898	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.

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