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GB/T 47615-2026Thermal insulating products for building applications - Determination of squareness (English PDF)

建筑用绝热制品垂直度的测定

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Issued by

State Administration for Market Regulation

Level / Type

National · Recommended

Issue date

May 25, 2026

Implementation date

December 1, 2026

Scope

GB/T 47615-2026 is the English-translated version of 建筑用绝热制品垂直度的测定.

GB/T 47615-2026 is a Chinese national standard on determining the squareness of thermal insulating products for building applications. It adopts ISO 29467:2008, incorporates its 2014 amendment and adds a chapter of normative references.

The standard specifies the equipment and the procedure for measuring the perpendicularity deviation of the entire product in the length, width and thickness directions.

It applies to thermal insulation products with right-angled edges, and other irregularly shaped products may refer to it for further information. Its clauses run from principle and equipment through the experiment and steps to calculation and expression of results, test accuracy and the test report. Issued on 25 May 2026 and applicable from 1 December 2026.

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Document preview — GB/T 47615-2026

National Standard of the People's Republic of China

ICS: 91.120.10
Classification: Q 25

Issued by: State Administration for Market Regulation

Preface
1 Scope
2 Normative References
3 Terms and Definitions
4 Principle
5 Equipment
6 Experiment
7 Step
8 Calculation and Representation of Results
9 Test accuracy
10 Test Reports

Foreword

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

This document adopts ISO 29467:2008 "Determination of verticality of thermal insulation products for building purposes". This document adds a chapter on "Normative References".

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

---Incorporating the amendments to ISO 29467:2008/Amd1.2014, the relevant clauses are indicated by vertical double margins. The line (||) is marked.

1 Scope

This document specifies the equipment and procedures for measuring the perpendicularity deviation of the entire product in the length, width, and thickness directions.

This document applies to thermal insulation products with right-angled edges. Other irregularly shaped products may refer to this document for further information.

2 Normative references

This document has no normative references.

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Deviation from squareness

The distance from the side of the right-angle ruler to the edge of the product at a specific distance from the angle (see Figures 1-3).

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 7 pages — is available in the English PDF.

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