GB/T 12009.2-2016 Active National standards

GB/T 12009.2-2016 Plastics—Aromatic isocyanates for use in the production of polyurethane—Part 2:Determination of hydrolysable chlorine

GB/T 12009.2-2016 Plastics—Aromatic isocyanates for use in the production of polyurethane—Part 2:Determination of hydrolysable chlorine

Publish Date: 2016-02-24 Implement Date: 2016-09-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 12009.2-2016

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Raw materials for rubber and plastics

Publish Date: 2016-02-24

Implement Date: 2016-09-01

Pages: 6 pages

Scope

This part of GB/T 12009 specifies the method for determining the hydrolysis chlorine in aromatic isocyanates used in polyurethane production by potentiometric titration.
This part is applicable to the determination of the hydrolysis chlorine content in toluene diisocyanate, 4,4′-diphenylmethane diisocyanate, polyisocyanates and other soluble isocyanates.
This part is not applicable to substances containing thiocyanate, cyanide, sulfide, bromide, iodide, or other substances that can react with silver ions and reduce silver ions in acidic solutions.

Development Information

Word Count: 10 Thousand words Pages: 6 pages

Same series standard

GB/T 12009.4-2016 Plastics—Aromatic isocyanates for use in the production of polyurethane—Part 4:Determination of isocyanate content GB/T 12009.5-2016 Plastics—Aromatic isocyanates for use in the production of polyurethane—Part 5:Determination of acidity

Replace the following standards

GB/T 12009.2-1989 Isocyanates—Determination of hydrolyzable chlorine content

Referenced Standards

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods

Adopt standards

ISO 15028:2004

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