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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 13350-2008 Glass wool and their products for thermal insulation. There have been the following main technical changes with respect to GB/T 13350-2008:
——The definitions and classification of normal glass wool products are added (see 3.1 and 4.1.2);
——The definitions, classification and requirements of glass wool products used in high temperature are added (see 3.2, 4.1.3 and 5.5);
——The definitions, classification and requirements of rigid glass wool products are added (see 3.3, 4.1.4 and 5.6);
——The definitions of formaldehyde free glass wool products and hydrophobic glass wool products are added (see 3.4 and 3.5);
——The diameter classification and process classification of glass wool are deleted (see 4.1.1 of Edition 2008);
——The performance requirements of loose glass wool are modified (see 5.3; 5.2 of Edition 2008);
——The performance requirements of glass wool products are modified (see 5.4.1 to 5.4.4; 5.3 to 5.7 of Edition 2008);
——The specific requirements for R values are deleted (see 5.8.1 of Edition 2008);
——The special requirements for formaldehyde emission are added (see 5.7.2);
——The special requirements for density uniformity are added (see 5.7.3);
——The bending failure load test method is added (see Annex A);
——The special requirements and test methods for rigidity are added (see 5.7.4 and Annex B).
This standard was proposed by China Building Materials Federation.
This standard is under the jurisdiction of SAC/TC 191 National Technical Committee on Insulation Materials of Standardization Administration of China.
The previous editions of this standard are as follows:
——GB/T 13350-2008, GB/T 13350-2000 and GB/T 13350-1992.
Glass wool and its products for thermal insulation
1 Scope
This standard specifies the terms and definitions, classification and identification, requirements, test methods, inspection rules, and marking, packaging, transportation and storage of glass wool and its products for thermal insulation.
This standard is applicable to loose glass wool, glass wool board, glass wool blanket, glass wool unbonded blanket, glass wool lamella and glass wool pipe sections for thermal insulation.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 4132 Definitions of terms relating to thermal insulating materials
GB/T 5480 Test methods for mineral wool and its products
GB 8624-2012 Classification for burning behavior of building materials and products
GB/T 10294 Thermal insulation - Determination of steady-state thermal resistance and related properties - Guarded hot plate apparatus
GB/T 10295 Thermal insulation - Determination of steady-state thermal resistance and related properties - Heat flow meter apparatus
GB/T 10296 Thermal insulation - Determination of steady-state thermal transmission properties - Pipe insulation apparatus
GB/T 10299 Test method for hydrophobic nature of thermal insulation
GB/T 11835-2016 Rock wool, slag wool and its products for thermal insulation
GB/T 13480 Thermal insulating products for building applications - Determination of compression behaviour
GB/T 17393 Specification for thermal insulation for use in contact with austenitic stainless steel
GB/T 17430 Estimating the maximum use temperature of thermal insulation
GB/T 20313 Hygrothermal performance of building materials and products - determination of moisture content by drying at elevated temperature
GB/T 30805 Thermal insulating products for building applications - Determination of short term water absorption by partial immersion
GB/T 32379 Determination of mineral wool and its products formaldehyde emission
GB/T 32991 Test method for density uniformity of mineral wool for thermal insulation
3 Terms and definitions
For the purposes of this document, the terms and definitions specified in GB/T 4132 and GB/T 5480 and the following apply.
3.1
normal glass wool product
glass wool product with a working temperature of not higher than 250℃
3.2
glass wool product used in high temperature
glass wool product that can be used for high temperature conditions (hot surface temperature: higher than 250℃) and are evaluated with the maximum use temperature
3.3
rigid glass wool product
glass wool product with certain mechanical strength
3.4
formaldehyde free glass wool product
glass wool product made by adding formaldehyde-free thermosetting binder
3.5
hydrophobic glass wool product
glass wool product which has a certain water permeability resistance by adding water repellent in the production process
3.6
glass wool board
rigid self-supporting board-like product made of glass wool by adding thermosetting binder
3.7
glass wool blanket
flexible blanket-like product made of glass wool by adding thermosetting binder
3.8
glass wool unbonded blanket
blanket-like product made of glass wool with paper, cloth, or metal mesh, etc. as reinforcing materials, without binder
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3.9
glass wool pipe sections
pipe sections made of glass wool by adding thermosetting binder
3.10
glass wool lamella
glass wool product made by cutting glass wool board into lamellae with a certain width and then rotating them by 90°
4 Classification and designation
4.1 Classification
4.1.1 Glass wool is classified into loose glass wool, normal glass wool product, glass wool product used in high temperature, and rigid glass wool product depending on its application.
4.1.2 Normal glass wool products are classified into normal glass wool board, normal glass wool blanket, normal glass wool unbonded blanket and normal glass wool pipe sections depending on their forms, which are hereinafter referred to as glass wool board, glass wool blanket, glass wool unbonded blanket and glass wool pipe sections, respectively.
4.1.3 Glass wool products used in high temperature are classified into glass wool board used in high temperature, glass wool blanket used in high temperature and glass wool pipe sections used in high temperature depending on their forms.
4.1.4 Rigid glass wool products are classified into rigid glass wool board and rigid glass wool lamella depending on their forms, among which the rigid glass lamella is hereinafter referred to as glass wool lamella.
4.2 Product designation
The product designation consists of two parts: the product technical characteristics and the serial number of this standard.
The product technical characteristics consist of the following parts:
a) Product name. If the name contains the words "formaldehyde free" and "hydrophobic", then the products are considered to be formaldehyde free glass wool products and hydrophobic glass wool products respectively;
b) A number indicating the nominal density of the product, expressed in kg/m3, followed by "-";
c) For glass wool products used in high temperature, the evaluated temperature of their maximum use temperature shall be given additionally in brackets. If there is no such mark, it is considered that the evaluated temperature of the maximum use temperature is 350℃;
d) The numbers indicating the size of the product. Specifically, boards, blankets, unbonded blankets and lamellae are represented by "length × width × thickness", and the pipe sections are represented by "inner diameter × length × thickness", which are all expressed in millimeters (mm);
e) Classification for burning behavior;
f) Manufacturer marks, such as veneers, which are separated from each other by commas and given in parentheses.
Example 1: normal glass wool blankets with a nominal density of 12kg/m3, length × width × thickness of 20,000mm × 600mm × 75mm, covered with aluminum foil, nominal burning behavior class A (A1), are designated as:
Glass wool blanket 12-20,000×600×75 A(A1) (aluminum foil) GB/T 13350-2017
Example 2: normal hydrophobic glass wool boards with a nominal density of 32kg/m3, length × width × thickness of 1,200mm × 600mm × 50mm, nominal burning behavior class A(A2), are designated as:
Hydrophobic glass wool board 32-1,200×600×50 A(A2) GB/T 13350-2017
Example 3: glass wool blankets used in high temperature with a nominal density of 48kg/m3, a maximum use temperature of 400℃, length × width × thickness of 1,200mm × 600mm × 50mm, are designated as:
Glass wool blanket used in high temperature 48-(400℃) 1,200×600×50 A(A1) GB/T 13350-2017
Example 4: rigid glass wool boards with a nominal density of 64kg/m3, length × width × thickness of 1,200mm×600mm×25mm, nominal burning behavior class A(A2), are designated as:
Rigid glass wool board 64-1,200×600×25 A(A2) GB/T 13350-2017
5 Requirements
5.1 General
Except for appearance, other performance indicators are only required for the glass wool substrate.
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and designation
5 Requirements
6 Test methods
7 Inspection rules
8 Marking
9 Packaging, transportation and storage
Annex A (Normative) Bending failure load test method
Annex B (Normative) Rigidity test method
