GB/T 12008.5-2010: Plastics -- Polyether polyols -- Part 5: Determination of acidity as acid number

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Scope

1.1 The test method specified in this Part of GB/T 12008 is used to determine the acidic
components in polyether polyols, and the result is expressed in acid number. The
typical acid number (calculated by the amount of consumed KOH) ranges from 0 to 0.1
mg/g.
1.2 This Part does not involve any safety issues associated with the application. Before
use, the user is responsible for establishing appropriate safety and health measures
and determining the scope of application of management restrictions.

Basic Data

Standard ID	GB/T 12008.5-2010 (GB/T12008.5-2010)
Description (Translated English)	Plastics -- Polyether polyols -- Part 5: Determination of acidity as acid number
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G31
Classification of International Standard	83.080.20
Word Count Estimation	6,685
Date of Issue	2010-09-26
Date of Implementation	2011-08-01
Older Standard (superseded by this standard)	GB/T 12008.5-1989
Quoted Standard	ASTM D883; ASTM E691
Adopted Standard	ASTM D7253-2006, MOD
Regulation (derived from)	National Standard Approval Announcement 2010 No.6 (Total No.161)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard applies to the determination of polyether polyols acidic ingredients. The results expressed in acid number. Typical acid value (amount of KOH consumed in total) in the range of 0-0. 1mg/g. This section does not involve the use of any associated security issues. Before use, the user has the responsibility to establish appropriate safety and health practices and determine the scope of the management restrictions.