ASTM-D6342 2008
$40.63
D6342-08 Standard Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy
| Published By | Publication Date | Number of Pages |
| ASTM | 2008 | 9 |
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 implementation 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 1There is no equivalent or similar ISO standard.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Scope Referenced Documents Terminology Summary of Practice |
| 2 | Significance and Use Instrumentation FIG. 1 |
| 3 | Near-IR Spectral Measurements |
| 4 | Procedure to Develop a Feasibility Calibration Selection of Calibration Samples |
| 5 | Collecting NIR Spectra Reference Method and Reference Values Developing Calibration Model |
| 7 | Validation of a Multivariate Model Precision of Near-IR Estimated Values Major Source of Calibration and Analysis Error |
| 8 | Calibration Transfer Calibration Quality Control Keywords REFERENCES |
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