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ASTM D 4274 : 2016 : REDLINE

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Numbers of Polyols
Available format(s)

PDF

Superseded date

08-13-2021

Language(s)

English

Published date

04-01-2016

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 08.02, 2016 Defines the hydroxyl groups in polyester and polyether polypols containing primary and secondary hydroxyl groups.

1.1These test methods measure the hydroxyl groups in polyester and polyether polyols containing primary and secondary hydroxyl groups. They also apply to many other hydroxyl-containing substances.

1.1.1Test Method A—Acetic Anhydride Pressure Bottle, recommended for polyesters.

1.1.2Test Method B—Phthalic Anhydride Pressure Bottle, recommended for polyethers and polyesters.

1.1.3Test Method C—Phthalic Anhydride Reflux, recommended for polyethers and polyesters.

1.1.4Test Method D—Imidazole–Catalyzed Phthalic Anhydride Pressure Bottle, recommended for polyethers, polyesters, polymer polyols, and amine-initiated polyols.

1.1.5Test Method E—Imidazole-Catalyzed Pyromellitic Dianhydride Esterification, recommended for polyols used for flexible and rigid polyurethane foams and urethane elastomers. It is recommended for polyester polyols, polyether polyols, amine-started polyols, and polymer polyols (polyacrylonitrile/copolystyrene-based).

1.2Another ASTM test method for measuring hydroxyl groups is Test Method E222.

1.3The values stated in SI units are to be regarded as the standard.

1.4This 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 and health practices and determine the applicability of regulatory limitations prior to use.

Note 1:This standard, ISO 14900 and ISO 6796 address the same subject matter, but differ in technical content.

Committee
D 20
DocumentType
Redline
Pages
13
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

Standards Relationship
UNE 53985-1:2004 Identical

BS ISO 14900:2017 Plastics. Polyols for use in the production of polyurethane. Determination of hydroxyl number
ASTM D 6342 : 2012 : R2017 : EDT 1 Standard Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy
ASTM E 1899 : 2016 : REDLINE Standard Test Method for Hydroxyl Groups Using Reaction with <emph type="ital">p</emph >-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide
ISO 14900:2017 Plastics — Polyols for use in the production of polyurethane — Determination of hydroxyl number
NASA MSFC PROC 3687 : 2015 MATERIAL SPECIFICATION FOR POLYURETHANE FOAM - SPRAYABLE
NASA MSFC SPEC 2083 : 2007 MULTIPROGRAM/PROJECT COMMON USE DOCUMENT FOAM, POLYURETHANE
NASA MSFC SPEC 3686 : A2015 MATERIAL SPECIFICATION FOR POLYURETHANE FOAM - SPRAYABLE
ASTM D 6342 : 20121 Standard Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy

ASTM E 222 : 2017 : REDLINE Standard Test Methods for Hydroxyl Groups Using Acetic Anhydride Acetylation
ISO 6796:1981 Polyglycols for industrial use Determination of hydroxyl number Phthalic anhydride esterification method
ASTM E 200 : 2016 : REDLINE Standard Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
ASTM E 180 : 2003 Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals (Withdrawn 2009)
ASTM E 203 : 2016 : REDLINE Standard Test Method for Water Using Volumetric Karl Fischer Titration
ISO 14900:2017 Plastics — Polyols for use in the production of polyurethane — Determination of hydroxyl number

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