GB/T 11835-2016Rock wool, slag wool and their products for thermal insulation (English PDF)

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 11835-2007 "adiabatic rock wool, slag cotton and its products". Compared with GB/T 11835-2007, except Editorial changes to the main technical changes are as follows: - modified the scope of application of the standard, increased the scope of the standard does not apply (see Chapter 1,.2007 edition of Chapter 1);

--- Removal of rock wool belt, slag cotton belt, rock wool veneer, slag cotton veneer terms, an increase of rock wool veneer products, slag cotton veneer Products, sewing mats, heating line shrinkage terms (see 3.1, 3.2, 3.3,.2007 edition 3.1, 3.2); - modified product classification (see 4.2,.2007 4.2);

--- Increases the acidity coefficient and heating line shrinkage requirements of rock wool products and slag cotton products (see 5.2.1); - modified the average fiber diameter and slag content (particle size greater than 0.25mm) requirements for cotton and fabric (see Section 5.2.2,.2007) 5.1); - the requirement to increase the density and thermal conductivity of cotton, increase the cotton acidity coefficient and the heating line shrinkage requirements (see 5.2.3,.2007 Year edition 5.2); - increased quality requirements for veneer and veneer (see

5.2.4.1 and 5.2.2.1.1,.2007,

5.3.1 and 5.6.1);

--- modified the format of the form (see Table 2 ~ Table 8,.2007 Table 2 to Table 4, Table 6 to Table 10); - the length, width and thickness of the plates, felt and felt are removed (see Table 2 and Table 4,.2007 Table 2 and Table 6);

--- to modify the board to allow the size of the deviation (see Table 2,.2007 Table 2);

--- modified the minimum density and density allowable deviation, thermal conductivity, combustion performance and other indicators (see Table 3, Table 5 and Table 8,.2007 Table 3, Table 7 and Table 10);

--- increase the rigid requirements of the board (see Table 2); - the removal of the products and their requirements (2007 edition 5.4); - modified the suture pitch of the felt, the "opening length" was changed to "the maximum opening length" (see Table 6,.2007 Table 8); - remove the length of the shell, modify the thickness and diameter range (see Table 7,.2007 Table 9); - modified the requirements for mass moisture absorption and water absorption (see 5.3.1,.2007, 5.7.2); - modified the maximum use temperature assessment requirements (see 5.3.2,.2007 edition 5.7.3); - modified the requirements for covering austenitic stainless steel (see 5.3.3.2,.2007, 5.7.1.2); - modified the presentation of the test method to the terms (see

6.2 to 6.18,.2007, 6.2); - Removed Appendix D "Sewing Quality Test Method", which is moved to the text (see Appendix 13 of the 13th edition,.2007); - delete the appendix F "test items, sampling plans and decision rules" and move them into the text (see appendix F of

7.1 and 7.3,.2007); - B.1 has been removed from Appendix B and the test procedure has been modified (see Appendix B, Appendix B of the.2007 edition); - the contents of C.1 in Appendix C have been deleted and the contents of C.3, C.4 and C.5 have been modified (see Appendix C, Appendix C of the.2007 edition); - Added Appendix E "Test Method for Heating Line Shrinkage" (see Appendix E). This standard is proposed by the National Building Materials Association. This standard is nationalized by the National Standardization Technical Committee for Thermal Insulation (SAC/TC191). The drafting of this standard. Nanjing Glass Fiber Research and Design Institute Co., Ltd., Shanghai New Building Materials Yanmian Co., Ltd., North New Group Building Materials Co., Ltd., Luokuo Wei fire insulation materials (Guangzhou) Co., Ltd., Shandong Luyang Co., Ltd., Nanjing Tongtian Yanmian Co., Ltd., Guizhou new insulation materials plant, Ma On Shan City Hongda Insulation Materials Co., Ltd., Hebei Huaneng Zhongtian Chemical Building Materials Group Co., Ltd., Sichuan Woke Mineral Fiber Products Co., Ltd., Nanjing Hengxiang Insulation Materials Manufacturing Co., Ltd., Guangde Shi Ke Yan Yanmian Manufacturing Co., Ltd., Tianchang City Kang Meida new insulation materials Limited, the State glass fiber product quality supervision and inspection center. The main drafters of this standard. Zhang Jianhong, Wang Jiaqing, Ding Li, Deng Yu, Cai Xiaoming, Bao Na, Lu Junhua, Wang Liting, Gao Zhao, Li Runnian, Liu Yifeng, Chen Kai, Wang Quanfeng, Xie Chunzhu, Cui Jun, Tang Jian, Zhu Liping. This standard replaced the previous version of the standard release. GB/T 11835-1989, GB/T 11835-1998, GB/T 11835-2007. Insulating rock wool, slag cotton and its products

1 Scope

China's national standard for rock wool, slag wool and the products made from them for thermal insulation - the boards, slabs, blankets, pipe sections and loose wool that insulate buildings, boilers, ducts, tanks and process pipework, and that also provide the fire protection those applications need. The material is spun from molten rock or from blast furnace slag, which makes it non-combustible, stable at high temperature and dimensionally durable - and is why it is used where organic foams cannot be. It specifies the terms and definitions, the classification and marking, the requirements, the test methods, the inspection rules, and the marking, packaging, transport and storage of rock wool, slag wool and their products. The requirements are the ones an engineer specifies and the ones that determine whether the installed insulation works: the density, which governs everything else; the thermal conductivity at the mean temperatures the product will see, given across the range rather than at a single point, because a product used on a hot line and one used in a cavity wall are being asked different questions; the maximum service temperature; the compressive strength and the tensile strength perpendicular to the faces, which decide whether a board can be walked on and whether a facing will pull off; the dimensional stability at temperature and the shrinkage; the fibre diameter and the shot content, which is the unmelted material left in the wool and the main determinant of how much of the product is actually insulating; and the acidity coefficient, which predicts the durability of the fibre. To those are added the water absorption and the hydrophobicity - a wet mineral wool conducts heat far better than a dry one and dries very slowly inside a lagging - the combustion behaviour, and the corrosion of steel in contact, since the chlorides and sulfates in the product can attack stainless pipework under insulation. Issued on 13 October 2016 and in force since 1 September 2017, it replaces GB/T 11835-2007.

This standard specifies the terms and definitions, classification and marking of requirements for thermal insulation with rock wool, slag and its products, requirements, test methods, inspection rules, Logo, packaging, transportation and storage. This standard applies to equipment and pipes used in rock wool, slag cotton and its products. This standard does not apply to rock wool, slag cotton and its products used in building envelope, building elements and flooring.

2 Normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document.

GB/T 191 packaging and storage icon

GB/T 2059 copper and copper alloy strip General industrial aluminum and aluminum alloy sheets, tapes - Part 1. General requirements GB/T Thermal insulation materials and related terms

GB/T 4132 Test methods for mineral wool and its products GB/T Classification of Combustion Performance of Building Materials and Products GB/T

GB/T 10294 Thermal insulation materials - Determination of steady - state thermal resistance and related properties - Protective plate method

GB/T 10295 Thermal insulation materials - Determination of steady - state thermal resistance and related properties - Heat flow meter method

GB/T 10296 - Determination of steady - state heat transfer properties of thermal insulation Test method for hydrophobicity of insulating materials GB/T

GB/T 17393 Specification for insulating materials for austenitic stainless steels Method for assessing the maximum operating temperature of insulation materials

GB/T 17430 YB/T 5059 low carbon steel cold rolled steel strip

3 Terms and definitions

The terms and definitions defined in GB/T 4132 and GB/T 5480 and the following terms and definitions apply to this document.

3.1 Rock wool veneer products, slag cotton veneer products facedrockwoolproduct, facedslagwoolproduct Rock wool or slag cotton board, felt and shells with adhesive and veneer materials made of products.

3.2 Stitching stitched mat A felt made by sieving a thread or net with a felt.

3.3 Heating line shrinkage linearshrinkageatspecifiedtemperature The sample size at the specified temperature for a specified time, the sample size shrinkage.

3.4 Heat load shrinkage heatshrinkagetemperatureunderload In the specified temperature conditions, the sample to withstand a constant load, the thickness of 10% shrink when the corresponding temperature.