ASTM D6342-98

Standard Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy

STANDARD published on 10.11.1998

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The information about the standard:

Designation standards: ASTM D6342-98
Note: WITHDRAWN
Publication date standards: 10.11.1998
SKU: NS-34747
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D6342-98 :

Keywords:

chemometrics, hydroxyl number, MLR, multivariate analysis, near-infrared analysis, NIR, PCR, PLS, polyol, polyurethane, raw material, ICS Number Code 83.040.10 (Latex and raw rubber)

Additional information

1. Scope

1.1 This standard covers a practice for the determination of hydroxyl numbers of polyols using NIR spectroscopy.

1.2 Definitions, terms, and calibration techniques are described. Procedures for selecting samples, and collecting and treating data for developing NIR calibrations are outlined. Criteria for building, evaluating, and validating the NIR calibration model are also described. Finally, the procedure for sample handling, data gathering and evaluation are described.

1.3 The implemenation of this standard requires that the NIR spectrometer has been installed in compliance with the manufacturer's specifications.

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

Note 1-There is no equivalent or similar ISO standard.

2. Referenced Documents

E456-13a(2022)e1	Standard Terminology Relating to Quality and Statistics (Includes all amendments and changes 4/16/2024).
E275-08(2022)	Standard Practice for Describing and Measuring Performance of Ultraviolet and Visible Spectrophotometers
E222-23	Standard Test Methods for Hydroxyl Groups Using Acetic Anhydride Acetylation
E168-16(2023)	Standard Practices for General Techniques of Infrared Quantitative Analysis
E131-10(2023)	Standard Terminology Relating to Molecular Spectroscopy
D4855-97	Standard Practice for Comparing Test Methods
D4274-23	Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Numbers of Polyols
D883-26a	Standard Terminology Relating to Plastics (Includes all amendments and changes 6/15/2026).
ISO 15063	Plastics--Polyols for use in the production of polyurethanes--Determination of hydroxyl number by NIR spectroscopy
E1655-17(2024)	Standard Practices for Infrared Multivariate Quantitative Analysis
E1899-23	Standard Test Method for Hydroxyl Groups Using Reaction with p-Toluenesulfonyl Isocyanate (TSI) and Potentiometric Titration with Tetrabutylammonium Hydroxide

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