national standards of People's Republic of China
Safety glass for construction part 1: fire protection glass
Safety glazing materials in building—Part 1: Fire-resistant glas
GB 15763.1-2009
Issuing authority: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Standardization Administration of China
Release Date: March 28, 2009
Implementation date: March 1, 2010
Foreword
6.3, 6.6, 6.7, 6.8, 6.9, 6.10, 9.1 of this part are mandatory clauses, others are recommended clauses
GB 15763 "Safety Glass for Construction" is currently divided into four parts:
- Part 1: Fire-resistant glass;
- Part 2: Tempered glass;
- Part 3: Laminated glass;
- Part 4: Homogeneous tempered glass.
This part is Part 1 of GB 15763.
This part refers to the corresponding foreign standards or specifications, such as BS EN357: 2004 "Glass for Construction - Fire-resistant Glass Components with Transparent or Translucent Glass - Fire Performance Classification", BS 6262-3: 2005 "Architectural Windows - Part 3: Code of Practice for Fire, Safety and Wind Loads.
This part replaces GB 15763.1-2001 "Safety Glass for Construction and Fireproof Glass". Compared with GB 15763.1-2001, the main changes of this part are as follows:
—— Amend the provisions according to GB 15763.1-2001 Amendment No. 1.
——Increase the definition of fire resistance rating, etc.
- Class B fire-resistant glass has been cancelled.
——The appearance quality of composite fireproof glass increases the requirements for scratch defects.
- redefine the fire resistance rating.
This part is proposed by China Building Materials Federation.
This part is under the jurisdiction of the National Construction Glass Standardization Technical Committee.
This part is drafted by: China Building Materials Inspection and Certification Center, Tianjin Fire Research Institute of the Ministry of Public Security, and Sichuan Fire Research Institute of the Ministry of Public Security.
Participating in the drafting of this section: Guangdong King Kong Glass Technology Co., Ltd., Beijing Green Jingfeng Fireproof Glass Co., Ltd., Zhejiang Zhongli Holding Group Co., Ltd., Hehe Technology Group Co., Ltd., Heshan Hengbao Fireproof Glass Factory Co., Ltd.
The main drafters of this section: Miao Xiangyang, Gong Shuyi, Wang Ruyang, Huang Wei, Nie Tao, Zhuang Dajian, Song Li, Long Linxing, Xia Weiwen, Chen Wolin, Wu Congzhen, Sui Chaoying.
The previous publications of the standards replaced by this part are as follows:
——GB 15763-1995 fireproof glass part for building;
- GB 15763.1-2001.
1 Scope
This part of GB 15763 specifies the terms and definitions, classification and marking, materials, requirements, test methods, inspection rules, markings, product instructions and packaging, transportation, storage, etc. of fireproof glass for construction.
This section applies to composite fireproof glass for construction and single-piece fireproof glass manufactured by tempering process.
2 Normative references
The terms in the following documents become the terms of this part through the reference of this part of GB 15763. For dated references, all subsequent amendments (excluding errata content) or revisions do not apply to this section, however, parties to agreements based on this section are encouraged to study whether the latest versions of these documents can be used . For undated references, the latest edition applies to this section.
GB/T 1216 outside micrometer
GB/T 2680-1994 Determination of visible light transmittance, direct sunlight transmittance, total solar transmittance, ultraviolet transmittance and related window glass parameters of architectural glass.
GB/T 5137.3-2002 Test methods for automotive safety glass - Part 3: Resistance to radiation, high temperature, humidity, combustion and simulated climate resistance
GB 11614 Flat Glass
GB/T 12513-2006 Test method for fire resistance of glass-inlaid components (ISO 3009:2003, MOD)
GB 15763.2-2005 Safety Glass for Construction Part 2: Tempered Glass
GB/T 18915 (all parts) coated glass
3 Terms and Definitions
The following terms and definitions apply to this section.
3.1 Integrity fire-resistant
Under standard fire test conditions, the ability of a glass member to prevent flame and hot gas from penetrating or appearing on the backside of the fire for a certain period of time when it is exposed to fire on one side.
3.2 insulation of fire-resistant
Under standard fire resistance test conditions, the ability of a glass component to keep the temperature of the unfired surface not exceeding the specified value within a certain period of time when one side of the glass component is exposed to fire.
3.3 fire-resistant limit fire-resistant time
Under standard fire test conditions, the time from when a glass member is exposed to fire to when it loses integrity or thermal insulation requirements.
3.4 laminated fire-resistant glass
It is a special glass that is composed of two or more layers of glass or a layer of glass and organic materials, and meets the requirements of the corresponding fire resistance.
3.5 Monolithic fire-resistant glass
It is a special glass composed of single-layer glass and meets the corresponding fire resistance requirements.
3.6 Insulated fire-resistant glass (A type)
Fire-resistant glass that meets the requirements of fire-resistance integrity and fire-resistance heat insulation at the same time.
3.7 Integrity-only fire-resistant glass (C type)
Fire-resistant glass only meets the requirements of fire-resistant integrity.
4 Classification and marking
4.1 Classification
4.1.1 Fireproof glass can be divided into:
a) Composite fireproof glass (represented by FFB);
b) Monolithic fireproof glass (represented by DFB).
4.1.2 Fireproof glass can be divided into:
a) Heat-insulating fire-resistant glass (Class A);
b) Non-insulated fire-resistant glass (Class C).
4.1.3 Fireproof glass can be divided into five grades according to the fire resistance limit: 0.50h, 1.00h, 1.50h, 2.00h, 3.00h.
4.2 Marking
4.2.1 Marking method
4.2.2 Marking Examples
A piece of composite fireproof glass with a nominal thickness of 25mm, a fire resistance of thermal insulation (Class A), and a fire resistance rating of 1.50h is marked as follows:
FFB-25-A1.50
A piece of monolithic fire-resistant glass with a nominal thickness of 12mm, non-insulated fire-resistant properties (Class C), and fire-resistant grade of 1.00h is marked as follows:
DFB-12-C1.00
5 Materials
The original fireproof glass can be made of coated or non-coated float glass, tempered glass, composite fireproof glass, or single piece of fireproof glass. The original glass should comply with the corresponding standards such as GB 11614, GB 15763.2-2005, GB/T 18915 (all parts) and the corresponding provisions of this part.
Other materials used should also meet the corresponding national standards, industry standards, and relevant technical requirements.
6 Requirements
The technical requirements of fireproof glass shall comply with the provisions of the corresponding clauses in Table 1.
6.1 Allowable deviation of size and thickness
The allowable deviation of the size and thickness of the fireproof glass shall comply with the provisions of Table 2 and Table 3.
6.2 Appearance quality
The appearance quality of fireproof glass shall meet the requirements of Table 4 and Table 5.
6.3 Fire resistance
The fire-resistance performance of thermally insulating fire-resistant glass (type A) and non-insulating fire-resistant glass (type C) shall meet the requirements of Table 6.
6.4 Curvature
The bow curvature of fireproof glass should not exceed 0.3%, and the wave curvature should not exceed 0.2%.
6.5 Visible light transmittance
The visible light transmittance of fireproof glass shall meet the requirements of Table 7.
6.6 Heat resistance
After the test, the appearance quality of the composite fireproof glass sample shall meet the requirements of 6.2.
6.7 Cold resistance
After the test, the appearance quality of the composite fireproof glass sample shall meet the requirements of 6.2.
6.8 UV radiation resistance
When the composite fireproof glass is used in the occasions with architectural lighting requirements, the ultraviolet radiation resistance performance test should be carried out.
After the composite fireproof glass sample is tested, the sample should not produce significant discoloration, bubbles and turbidity, and the relative change rate ΔT of the visible light transmittance before and after the test should not be greater than 10%.
6.9 Impact resistance
The number of sample test failures shall comply with the provisions of 8.3.4.
The single-piece fireproof glass is not damaged means that it is not broken after the test; the composite fireproof glass is not damaged means that the glass meets one of the following conditions after the test:
a) The glass is not broken;
b) The glass is broken but the steel ball does not penetrate the sample.
6.10 Fragmentation Status
The number of pieces of each test sample in the area of 50mm × 50mm should not be less than 40 pieces. A small amount of long shards are allowed, but their length shall not exceed 75mm, and the ends are not blade-shaped; the angle formed by the elongated shards extending to the edge of the glass and the edge of the glass shall not exceed 45°.
7 Test methods
7.1 Allowable deviation of size and thickness
Dimensions are measured with a steel ruler or steel tape measure with a minimum graduation of 1mm. The thickness shall be measured at the midpoint of the four sides of the glass with a micrometer in accordance with GB/T 1216 or an instrument with the same precision.
7.2 Appearance quality
Visual inspection is carried out at 600mm from the front of the glass in good natural or diffuse lighting conditions. The size of the defect is limited to the largest edge that can be clearly observed. Use a metal ruler with a division value of 1mm and/or a reading microscope with a minimum division value of 0.01mm to measure the size of the defect.
7.3 Fire resistance
Carry out fire resistance test according to GB/T 12513-2006. The fire size of the sample should be the largest size actually used for the test, and should not be less than 1100mm × 600mm.
The fixed frame and installation method used in the test shall be the same as those used in the actual project, and the structure and installation method of the fixed frame shall be recorded in drawings or other equivalent methods. For the thermal insulation type (Type A) fireproof glass fixed frame, the measured value of the backfire surface temperature is only recorded, and not used as a judgment condition for thermal insulation.
7.4 Curvature
Measure according to the method specified in 6.4 of GB 15763.2-2005.
7.5 Visible light transmittance
Take three samples and conduct the test according to the method specified in 3.1 of GB/T 2680-1994. For products with an explicit nominal value, the nominal value is used as the benchmark for deviation; for products without an explicit nominal value, three samples are taken for testing, and the maximum value of the difference between the three samples is taken.
7.6 Heat resistance
7.6.1 Take six samples for testing, three of which are prepared samples. The size of the sample should be 300mm×300mm, and it should be made of the same material as the product and under the same processing technology.
Before the test, the sample should be placed vertically at 20℃±5℃ for more than 6h, check the appearance quality and record the defects in detail.
7.6.2 Put the sample vertically into the incubator, keep it at 50℃±2℃, and take it out after 6 hours of constant temperature.
7.6.3 Put the sample taken out vertically at 20℃±5℃ for more than 6h, and check its appearance quality.
7.7 Cold resistance
7.7.1 Same as 7.6.1.
7.7.2 Put the sample into the low temperature box, keep it at -20℃±2℃, and take it out after constant temperature for 6h.
7.7.3 Put the sample taken out vertically at 20℃±5℃ for more than 6h, and check its appearance quality.
7.8 UV radiation resistance
Six samples were taken for testing, three of which were prepared. The size of the sample should be 300mm×76mm, which is a flat test piece made of the same material as the product and under the same processing technology. The test device should meet the requirements of GB/T 5137.3-2002.
The test shall be carried out in accordance with GB/T 5137.3-2002.
The calculation of the relative change rate ΔT of the visible light transmittance of the sample before and after the test is shown in formula (1):
where:
ΔT——The relative change rate of the visible light transmittance of the sample, the unit is percentage (%);
T1——Visible light transmittance of the sample before UV irradiation
T2——Visible light transmittance of the sample after ultraviolet irradiation.
7.9 Impact resistance
Twelve quick samples were taken for testing, of which six were prepared samples. Carry out the test according to the method specified in 6.5 of GB 15763.2-2005. When the composite fireproof glass has an asymmetric structure, take the thinner side as the impact surface.
7.10 Fragmentation Status
Take four samples for testing, the sample size is 1100mm × 360mm. Carry out the test according to the method specified in 6.6 of GB 15763.2-2005.
8 Inspection rules
8.1 Inspection classification
Inspection is divided into factory inspection and type inspection.
8.1.1 Factory inspection
The inspection items are size, thickness and deviation, appearance quality and curvature.
8.1.2 Type inspection
The inspection items are all the technical requirements specified in this part, and the type inspection shall be carried out in one of the following situations:
a) Trial-type identification of new products or old products transferred to factories.
b) After the official production, such as the structure, material and process have changed greatly, which may affect the performance of the product.
c) When the normal production reaches 3 years.
d) When the product has been discontinued for more than half a year, production is resumed.
e) When there is a big difference between the factory inspection result and the last type inspection.
f) When the quality supervision department puts forward the requirements for type inspection.
8.2 Batching and Sampling
8.2.1 The size, thickness deviation, appearance quality and bending degree of fireproof glass shall be randomly sampled according to the provisions of Table 8.
8.2.2 For the technical requirements of the product, if the product is inspected, it shall be randomly selected from the batch of products according to the quantity required by the inspection item; the fireproof glass forming a batch shall be of the same material and produced under the same process conditions. . When the batch of products is larger than 500 pieces, each batch of 500 pieces shall be selected in batches. If samples are used for inspection, the samples prepared under the same materials and process conditions as the products shall be used.
8.3 Judgment Rules
8.3.1 When the size, thickness deviation, appearance quality, and curvature of fireproof glass are inspected, if the number of unqualified products is less than the number of unqualified judgments in Table 8, the item is qualified; if the number of unqualified products is equal to or greater than the number of unqualified products in Table 8 If the number of unqualified judgments is found, the item of this batch of products is considered unqualified.
8.3.2 When the fire resistance, visible light transmittance and fragmentation state are inspected, all the samples are qualified if they meet the requirements, otherwise the item is unqualified.
8.3.3 When testing the heat resistance, cold resistance and ultraviolet radiation resistance, if all the samples meet the requirements, the item is qualified; if two samples fail, the item is unqualified; if one sample fails, the item is qualified. Three spare samples can be taken for re-testing. If there are still unqualified products, the item is unqualified.
8.3.4 During the impact resistance test, if no more than one sample is damaged, the item is qualified; if three or more samples are damaged, the item is unqualified; if two samples are damaged, another sample can be taken The six spare samples shall be re-tested. If the samples are still damaged, the item shall be unqualified.
8.3.5 If one item is unqualified among all inspection items, the batch of products shall be considered unqualified.
9 Logo, product instruction manual
9.1 Signs
9.1.1 Product marking
The lower right corner of each product should have a product mark, business name or trademark that is not easily erased.
9.1.2 Packaging signs
Each packing box should be marked with the type, specification, fire resistance rating, quantity, receiving unit, name and address of the manufacturer, and date of manufacture of the products packed in the box. And marked "Handle with care, moisture-proof, upward".
9.2 Product Instruction Manual
When the product leaves the factory, the product instruction manual should be attached to clarify the use place of the product, the installation requirements, and the main performance of the product.
10 Packaging, transportation and storage
10.1 Packaging
The products should be packed in wooden boxes or other packaging boxes. The glass should be placed vertically in the box. Each piece of glass should be separated by plastic film or paper. Fill with soft material.
10.2 Transportation
Do not lay flat during transportation, the length should be the same as the direction of vehicle movement, and there should be rain-proof measures.
10.3 Storage
The product should be stored vertically in a dry room.
-转自新玻网
