GB/T 41768-2022Thermal insulating materials for building applications - Determination of organic content (English PDF)

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"

drafted.

This document is equivalent to ISO 29771.2008 "Determination of Organic Content of Thermal Insulation Materials for Buildings".

This document adds a chapter "Normative References".

The following minimal editorial changes have been made to this document.

a) Incorporating the amendments to ISO 29771.2008/Amd.1.2014, the outer margins of the clauses involved are marked with vertical double

Line (||) is marked;

b) Delete the note in "Scope".

Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.

1 Scope

This document specifies the test instruments and test methods for the determination of the organic content of thermal insulation materials for buildings.

This document is suitable for the determination of organic content in inorganic materials, such as thermal insulation materials with or without veneers containing a small amount of organic components.

This document does not apply to the determination of the organic content of materials containing carbohydrates and/or carbonates and sulfates.

This document does not apply to the determination of the organic content of products such as adhesives, veneers and coatings.

2 Normative references

There are no normative references in this document.

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1

organiccontentorganiccontent

woc

The total amount of carbon compounds in a material or article.

Note. The content of organic matter in materials or products is expressed in mass fraction.

4 Principles

The ratio of the difference between the mass of the dried sample and the mass of the sample burned at a specific temperature and a specific time to the mass of the sample is the sample.

of organic matter content.

5 Instruments

6 Specimen Preparation