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Standard Practice for Polyurethane Raw Materials: Determining Hydroxyl Number of Polyols by Near Infrared (NIR) Spectroscopy
Automaticky přeložený název:
Standardní praxe pro Polyuretanové surovin : Stanovení hydroxylové číslo polyolů podle blízké infračervené ( NIR ) spektroskopie
NORMA vydána dne 10.11.1998
Označení normy: ASTM D6342-98
Poznámka: NEPLATNÁ
Datum vydání normy: 10.11.1998
Kód zboží: NS-34747
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
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)
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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. |
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