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GB/T 9966.8-2025 English PDF

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GB/T 9966.8-2025: Test methods for natural stone - Part 8: Determination of test for structural performance of dimension stone cladding systems by uniform static pressure difference
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GB/T 9966.8: Evolution and historical versions

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GB/T 9966.8-2025English169 Add to Cart 3 days [Need to translate] Test methods for natural stone - Part 8: Determination of test for structural performance of dimension stone cladding systems by uniform static pressure difference Valid GB/T 9966.8-2025
GB/T 9966.8-2008English139 Add to Cart 3 days [Need to translate] Test methods for natural facing stones -- Part 8: Test method for structural performance of dimension stone cladding systems by uniform static pressure difference Valid GB/T 9966.8-2008
GB/T 9966.8-2001English199 Add to Cart 2 days [Need to translate] Test methods for natural facing stones -- Part 8: Test method for structural performance of dimension stone cladding systems by uniform static pressure difference Obsolete GB/T 9966.8-2001

PDF similar to GB/T 9966.8-2025


Standard similar to GB/T 9966.8-2025

GB/T 11982.1   JC/T 908   JC/T 973   GB/T 9966.12   GB/T 9966.13   GB/T 9966.11   

Basic data

Standard ID GB/T 9966.8-2025 (GB/T9966.8-2025)
Description (Translated English) Test methods for natural stone - Part 8: Determination of test for structural performance of dimension stone cladding systems by uniform static pressure difference
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q21
Classification of International Standard 91.100.15
Word Count Estimation 8,871
Date of Issue 2025-06-30
Date of Implementation 2026-01-01
Older Standard (superseded by this standard) GB/T 9966.8-2008
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 9966.8-2025: Test methods for natural stone - Part 8: Determination of test for structural performance of dimension stone cladding systems by uniform static pressure difference


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Test methods for natural stone - Part 8.Determination of test for structural performance of dimension stone cladding systems by uniform static pressure difference Test methods for natural stone - Part 8.Test methods using uniform Static pressure differential detection stone hanging system Structural strength test Test methods for natural stone-Part 8.Determination of test for structural pressure difference ICS 91.100.15 CCS Q 21 National Standard of the People's Republic of China Replaces GB/T 9966.8-2008 Released on June 30, 2025, implemented on January 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface... Ⅲ Introduction Ⅳ 1 Scope... 1 2 Normative references... 1 3 Terms and Definitions 1 4 Principles... 1 5 Equipment and measuring tools... 1 5.1 Testing Room... 1 5.2 Pressure measuring device... 2 5.3 Deflection measuring device 2 6 samples... 2 7 Test steps... 3 7.1 Unloaded state... 3 7.2 Positive load state... 3 8 Result calculation... 3 9 Test Report... 3 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. This document is Part 8 of GB/T 9966 “Test methods for natural stone”. GB/T 9966 has been published in the following parts. Part 1.Compressive strength test after drying, water saturation and freeze-thaw cycles; Part 2.Flexural strength test after drying, water saturation and freeze-thaw cycles; Part 3.Water absorption, bulk density, true density and true porosity test; Part 4.Abrasion resistance test; Part 5.Hardness test;- Part 6.Acid resistance test;- Part 7.Hanging strength test of stone hanger assembly unit; Part 8.Test for structural strength of stone hanging systems using uniform static pressure differential; Part 9.Determination of dynamic elastic modulus by measuring the fundamental frequency of resonance; Part 10.Determination of seismic performance of hanging assembly units; Part 11.Determination of accelerated aging strength after chilling and heating; Part 12.Determination of static elastic modulus; Part 13.Determination of capillary water absorption coefficient; Part 14.Determination of resistance to breaking energy; Part 15.Determination of resistance to salt spray aging; Part 16.Determination of coefficient of linear thermal expansion; Part 17.Determination of salt crystallization strength; Part 18.Petrographic analysis. - This document replaces GB/T 9966.8-2008 "Natural facing stone test methods Part 8.Testing stone hanging by uniform static pressure difference" Compared with GB/T 9966.8-2008, in addition to structural adjustments and editorial changes, the main technical changes are The following. Added the term and definition of "limit load" (see 3.3); a) The term and definition of “failure load” have been deleted (see 2.3 of the.2008 edition); b) The overview of the test method principles has been changed (see Chapter 4, Chapter 3 of the.2008 edition); c) The test equipment, measuring instruments and schematic diagrams have been changed (see Chapter 5, Chapter 4 of the.2008 edition); d) The number of specimens, test procedures and result calculations have been changed (see Chapters 6 to 8, Chapters 5 to 7 of the.2008 edition). e) Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed by China Building Materials Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Stone Materials (SAC/TC 460). This document was drafted by. Sinoma Synthetic Crystal Research Institute Co., Ltd., China National Testing and Inspection Holding Group Co., Ltd., and Universal Marble (FUJIAN) CO., LTD. The main drafters of this document are. Zhou Junxing, Xu Wanfen, Zi Peng, Zhong Wenbo, Li Yongqiang, and Fang Maoyuan. This document was first published in.2001, revised for the first time in.2008, and this is the second revision.

introduction

GB/T 9966 "Natural Stone Test Methods" aims to help people understand the physical and chemical properties of various natural stones and provide guidance for stone selection and design. Provide a basis for design, production and processing, construction and installation, commercial application and maintenance, ensure the quality and safety of stone building decoration projects, and provide stone resources GB/T 9966 is composed of 18 parts. Part 1.Compressive strength test after drying, water saturation and freeze-thaw cycles. The purpose is to specify the compressive strength of natural stone under various extreme conditions. The compressive strength test method and applicable measurement range are as follows. Part 2.Flexural strength test after drying, water saturation and freeze-thaw cycles. The purpose is to specify the flexural strength of natural stone under various extreme conditions. Bending strength test method and applicable measurement range under. Part 3.Water absorption, bulk density, true density, true porosity test. The purpose is to specify the use of drainage method to determine the water absorption, bulk density, true density, true porosity test of natural stone. Test methods for water absorption, bulk density, true density and true porosity of materials and applicable measurement range. Part 4.Abrasion resistance test. The purpose is to specify the abrasion resistance test of natural stone using the disc wear method and the grinding wheel grinding method. Test method and applicable measurement range. Part 5.Hardness test. The purpose is to specify the test method for determining the hardness of natural stone using Mohs hardness and Shore hardness and Applicable measurement range. Part 6.Acid resistance test. The purpose is to specify the acid resistance test of natural stone using the sulfur dioxide wet gas corrosion method. Test method and applicable measurement range. Part 7.Test for the hanging strength of stone hanger assembly units. The purpose is to specify the use of a single pull-out method to determine the strength of stone hanger assembly units. Unit hanging strength test method and applicable measurement range. Part 8.Testing the structural strength of stone hanging systems using uniform static pressure differential. The test method for the structural strength of the stone hanging system and the applicable measurement range. Part 9.Determination of dynamic elastic modulus by measuring the fundamental frequency of resonance. The test method for dynamic elastic modulus of stone and its applicable measurement range are determined. Part 10.Determination of seismic performance of hanging assembly units. The purpose is to specify the determination of seismic performance of stone hanging units by 100,000 repeated tension and compression methods. Test method for seismic performance of composite units and applicable measurement range. Part 11.Determination of accelerated aging strength by chilling and heating. The purpose is to specify the determination of the resistance of stone to chilling and heating by high and low temperature catastrophic method. Performance test methods and applicable measurement range. Part 12.Determination of static elastic modulus. The purpose is to specify the test method for determining the static elastic modulus of stone by pressure deformation and applicable measurement range. Part 13.Determination of capillary water absorption coefficient. The purpose is to specify the test method for determining the capillary water absorption coefficient by the water absorption rate of stone and applicable measurement range. Part 14.Determination of fracture energy. The purpose is to specify the test method and applicable The measurement range used. Part 15.Determination of resistance to salt spray aging. The purpose is to specify the test method for determining the resistance to salt spray aging of stone using the salt spray method. and applicable measurement range. Part 16.Determination of linear thermal expansion coefficient. The purpose is to specify the determination of linear thermal expansion coefficient of stone by mechanical measurement and thermal expansion instrument measurement. Test method for thermal expansion coefficient and applicable measurement range. Part 17.Determination of salt crystallization strength. The purpose is to specify the test method for determining the salt crystallization strength of stone using the sodium sulfate solution immersion method. Method and applicable measurement range. Part 18.Petrographic analysis. The purpose is to specify the method of determining the type of rock and minerals by grinding and observing under a microscope. Petrographic test methods and applicable measurement range. Test methods for natural stone - Part 8.Test methods using uniform Static pressure differential detection stone hanging system Structural strength test

1 Scope

This document specifies the principles, equipment and measuring tools, specimens, test procedures and methods for testing the structural strength of stone hanging systems using uniform static pressure differential. steps, result calculation and test report. This document applies to the determination of positive load and deformation of stone hanging system structures using uniform static pressure difference.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies. In this document. GB/T 17670 Unified numbering of natural stone 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 positive load The air is pressurized on the stone decorative surface to make the sample withstand the positive air pressure difference. 3.2 negative load The sample is subjected to reverse air pressure difference by applying suction pressure to the stone decorative surface. 3.3 Ultimate load The air pressure difference (positive or negative) when the stone specimen is damaged or the hanging system fails.

4 Principles

In this test, the stone sample is sealed at one end of the "test chamber" and air is pumped out or injected into the "test chamber" at the required rate to maintain the test pressure. The positive and negative pressure differences on the sample surface are observed, measured, and recorded to give the deformation and damage conditions of the sample in uniform static air. Standard procedure for determining the structural performance of cladding panels under pressure differentials, used to simulate the effects of wind loads on building exterior cladding. Only provides reference data under one simulation state.

5 Equipment and measuring tools

5.1 Testing Room Any instrument, equipment or device capable of completing this test shall meet the following requirements.

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