GB/T 10801.2-2018 PDF in English
GB/T 10801.2-2018 (GB/T10801.2-2018, GBT 10801.2-2018, GBT10801.2-2018)
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Rigid extruded polystyrene foam board for thermal insulation (XPS)
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Standards related to: GB/T 10801.2-2018
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GB/T 10801.2-2018: PDF in English (GBT 10801.2-2018) GB/T 10801.2-2018
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 83.100
G 32
Replacing GB/T 10801.2-2002
Rigid Extruded Polystyrene Foam Board for Thermal
Insulation (XPS)
ISSUED ON: DECEMBER 28, 2018
IMPLEMENTED ON: JULY 01, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Classification ... 6
4 Requirements ... 7
5 Test Method ... 10
6 Inspection Rules ... 12
7 Marking, Labeling and Instructions for Use ... 13
8 Packaging, Transportation and Storage ... 13
Appendix A (Informative) Graphite Extruded Polystyrene Foam Board for thermal
insulation (Graphite XPS) ... 15
Bibliography ... 16
Rigid Extruded Polystyrene Foam Board for Thermal
Insulation (XPS)
1 Scope
This Part of GB/T10801 specifies the classification, requirements, test methods, inspection
rules, marking, labeling, instructions for use and packaging, transportation and storage of rigid
extruded polystyrene foam board for thermal insulation (XPS).
This Part applies to rigid extruded polystyrene foam board for thermal insulation (XPS) with a
service temperature not exceeding 75°C, including rigid extruded polystyrene foam board
adding graphite and other infrared blocking agents (see Appendix A), and also including rigid
extruded polystyrene foam board with/without skin, as well as rigid extruded polystyrene foam
board with special edge structure and surface treatment. This Part also applies to rigid extruded
polystyrene foam board for thermal insulation of prefabricated components and composite
insulation systems.
2 Normative References
The following documents are essential to the application of this Document. For the dated
documents, only the versions with the dates indicated are applicable to this Document; for the
undated documents, only the latest version (including all the amendments) is applicable to this
Document.
GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and testing
GB/T 6342-1996 Cellular plastics and rubbers - Determination of linear dimensions
GB 8624 Classification for burning behavior of building materials and products
GB/T 8810-2005 Determination of water absorption of rigid cellular plastics
GB/T 8811-2008 Test method for dimensional stability of rigid cellular plastics
GB/T 8813-2008 Rigid cellular plastics - Determination of compression properties
GB/T 10294-2008 Thermal insulation - Determination of steady-state thermal resistance
and related properties - Guarded hot plate apparatus
GB/T 10295-2008 Thermal insulation - Determination of steady-state thermal resistance
5.4 Compressive strength or compressive stress at relative deformation of 10%
According to GB/T 8813-2008, the sample dimension is (100±1)mm×(100±1)mm×original
thickness. For products with a thickness greater than 100mm, the length and width of the
specimen shall be no less than the thickness of the product. The loading speed is 1/10 (mm/min)
of the thickness of the specimen. For example, for a product with a thickness of 50 mm, the
loading speed is 5 mm/min. Take the average value of the test results of 5 specimens.
Measure the maximum compressive stress of the specimen or the compressive stress when the
relative deformation is 10%, which one occurs first, and the stress of which one is taken as the
result.
5.5 Water absorbing capacity
Water absorbing capacity is carried out according to GB/T 8810-2005. The water temperature
is (23±2)°C, and the soaking time is 96h. The specimen dimension is
(150±1)mm×(150±1)mm×original thickness. The water absorbing capacity is the average value
of the test results of three specimens.
5.6 Dimensional stability
The dimensional stability is carried out according to GB/T 8811-2008. The specimen dimension
is (100±1)mm×(100±1)mm×original thickness. The test conditions are at temperature of
(70±2)°C and time of 48h. The dimensional stability takes the average value of the absolute
values of the test results of three specimens.
5.7 Water vapor transmission coefficient
The water vapor transmission coefficient is carried out according to QB/T 2411-1998. The
thickness of the specimen is 25mm. When the thickness is less than 25mm, the original
thickness shall be used for the test. The test temperature shall be (23±1)℃, and the relative
humidity gradient shall be 0~(50±2)%. The water vapor transmission coefficient is the average
value of the test results of 5 specimens.
5.8 Thermal insulation
The thermal conductivity is carried out according to GB/T 10294-2008 or GB/T 10295-2008.
The average temperature is 10 ℃ and 25 ℃; and the test temperature difference is 15 ℃ ~
25 ℃. Arbitration inspection shall be carried out according to GB/T 10294-2008.
The thermal resistance value is calculated according to Formula (1):
Where:
R – thermal resistance, in [(m2•K)/W];
H – thickness, in m;
λ – thermal conductivity, in [W/(m•K)].
5.9 Combustion performance
The combustion performance shall be carried out according to the provisions of GB 8624.
6 Inspection Rules
6.1 Exit-factory inspection
6.1.1 Exit-factory inspection shall be carried out when the product leaves the factory.
6.1.2 The items of exit-factory inspection are: dimension, appearance, compressive strength,
and thermal conductivity.
6.1.3 Batching: 600m3 of products of the same category and the same specification that leave
the factory shall be counted as a batch; and those less than 600m3 shall be counted as a batch.
6.1.4 Sampling: randomly select 12 samples for dimension and appearance inspection; 6
samples for compressive strength, and 2 samples for thermal insulation performance.
6.1.5 Dimensions, appearance, compressive strength, and thermal conductivity shall be
inspected according to the test methods specified in Clause 5; and the inspection results shall
comply with the provisions in Clause 4. If one of the indicators is unqualified, the sampling
shall be doubled for re-inspection. If there is still one unqualified item in the re-inspection
results, the batch of products shall be judged as unqualified.
6.2 Type inspection
6.2.1 In one of the following situations, type inspection shall be carried out:
a) Finalization identification of the new product;
b) After formal production, the raw materials and processes have undergone major changes,
which may affect product performance;
c) During normal production, at least once a year;
d) When there is a large difference between the exit-factory inspection result and the
previous type inspection;
e) When the product has been discontinued for more than 6 months and then the production
is resumed.
6.2.2 The inspection items for type inspection are the requirements specified in Clause 4.
6.2.3 For type inspection, samples shall be randomly selected from qualified products in the
factory warehouse; and specimens shall be cut and inspected according to the test method
specified in Clause 5. The inspection results shall comply with the provisions in Clause 4.
7 Marking, Labeling and Instructions for Use
7.1 Marking
The surface of each product shall be printed with a non-transferable product marking. The
product marking shall have a certain degree of durability and shall be clearly visible during use.
See 3.2 for the format and content of the marking.
7.2 Labeling and instructions for use
It shall be stated on the label or in the instructions for use as follows:
a) The name of this Part;
b) Product name, product marking, trademark;
c) The name and detailed address of the manufacturer;
d) Specifications and main performance indicators of the product;
e) Date of manufacture;
f) Indicate warnings or icons to guide safe use, for example: the combustion performance
grade of this product is Grade-B2, and it shall be kept away from fire sources during use;
g) Quantity of product in the packaging unit.
The label text and pattern shall be eye-catching and clear, easy to identify, and have a certain
degree of durability.
8 Packaging, Transportation and Storage
8.1 The product needs to be packaged with shrink film or plastic strapping, or negotiated
between the supplier and the purchaser. When transporting to other cities, the packaging needs
to be adapted to the transport requirements.
8.2 Products should be stacked separately according to categories and specifications to avoid
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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