GB/T 18319-2019 PDF in English
GB/T 18319-2019 (GB/T18319-2019, GBT 18319-2019, GBT18319-2019)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 18319-2019 | English | 125 |
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Textiles -- Test method for solar heat storage property
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| GB/T 18319-2001 | English | 239 |
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Textiles -- Testing method for thermal retention with accumulated by infrared ray
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Standards related to (historical): GB/T 18319-2019
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GB/T 18319-2019: PDF in English (GBT 18319-2019) GB/T 18319-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.080.01
W 04
Replacing GB/T 18319-2001
Textiles - Test method for solar heat storage property
ISSUED ON: DECEMBER 31, 2019
IMPLEMENTED ON: JULY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Principle ... 4
5 Instruments and equipment ... 5
6 Sample humidity control and environmental requirements ... 6
7 Sample preparation ... 6
8 Test steps ... 6
9 Calculation of results ... 7
10 Test report ... 7
Appendix A (Informative) Evaluation of solar heat storage property of textiles ... 9
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 18319-2001, Textiles - Testing method for thermal
retention with accumulated by infrared ray; compared with GB/T 18319-2001, the main
technical changes are as follow:
-- Modify the test principle; expand the light irradiation band from the infrared band to
various bands of simulated sunlight; modify the light source to a xenon arc lamp;
change the test indicators to the maximum temperature rise, average temperature rise
and test end temperature rise (See Chapter 4);
-- Modify the sample size and quantity (see Chapter 7), test steps (see Chapter 8) and
result calculation and expression (see Chapter 9).
Please note that some of the contents of this document may involve patents. The issuing
organization of this document is not responsible for identifying these patents.
This Standard was proposed by China National Textile and Apparel Council.
This Standard shall be under the jurisdiction of National Technical Committee on
Textiles of Standardization Administration of China (SAC/TC 209).
Drafting organizations of this Standard: Shanghai Entry-Exit Inspection and Quarantine
Bureau Industrial Products and Raw Materials Testing Technology Center,
Lianrunxiang (Qingdao) Textile Technology Co., Ltd., Nantong Hongda Experiment
Instruments Co., Ltd., Xiamen Donglun Co., Ltd., Huafa Technology Co., Ltd.,
Chinatesta Textile Testing & Certification Services Co., Ltd., Zhongfangbiao
(Shenzhen) Inspection & Testing Co., Ltd.
Main drafters of this Standard: Yuan Zhilei, Chen Pei, Fei Jing, Zhang Hui, Cai Jiashi,
Jiang Lu, Sui Yanghua, Xie Luman, Wang Shouyu, Han Jie, Fan Xiaoqin, Wu Dawei,
Fu Chunlin, Cai Zhibin.
The previous version – replaced by this Standard – of the standard is:
-- GB/T 18319-2001.
Textiles - Test method for solar heat storage property
1 Scope
This Standard specifies the test method for solar heat storage property of textiles.
This Standard applies to all types of textile products. Fibers and yarns can be made into
sheets and then implemented as a reference.
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 6529, Textiles - Standard atmospheres for conditioning and testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
solar heat storage property
Property that textiles absorb sunlight from the environment, convert it into heat energy,
and maintain it for a period of time to increase the temperature.
3.2
irradiance
Radiant power incident on unit surface area.
Note: The unit is watts per square meter (W/m2).
4 Principle
Use a xenon arc lamp as the irradiation light source. Place the sample under a certain
irradiation intensity, and the temperature of the sample changes due to absorption of
light energy. Use a temperature sensor to test the temperature of the sample; record the
temperature change of the sample at every point-in-time after 10 minutes of irradiation
and 10 minutes of turning off the light source; calculate the maximum temperature rise
4 – temperature recorder;
5 – temperature sensor 1;
6 – temperature sensor 2;
7 – sample pressing frame.
Figure 1 – Example of structural diagram of solar heat storage tester
6 Sample humidity control and environmental requirements
Perform humidifying in accordance with the standard atmospheric temperature and
humidity environment and procedures specified in GB/T 6529, and carry out the test,
where no other thermal radiation sources that may affect it exist indoors.
7 Sample preparation
The sample shall be representative. Cut at least three test pieces from each sample. The
size of each test piece shall be at least 180 mm × 180 mm. If there are areas with large
differences in structure, color, etc. (including spliced components in the product) in the
sample, it is advisable to sample each area separately if possible. For fibers and yarns,
sheet test pieces can be made for testing.
8 Test steps
Warning – Xenon arc light is harmful to eyes. Proper protective measures should
be taken during testing.
8.1 Turn on the xenon arc lamp of the tester and preheat it for 5 minutes. Use an
irradiance meter to test the irradiance at the center of the sample table and adjust the
irradiance to (400 ± 10) W/m2; then, turn off the xenon arc lamp and let the test table
cool to ambient temperature.
8.2 Place the sample in the center on the sample table with the front side of the sample
facing up; then, use the sample pressing frame to fix the sample, to ensure that the
sample is in full contact with temperature sensor 1.
8.3 Turn on the xenon arc lamp, and the temperature recorder will automatically record
the temperature changes of the sample and the environment at least every 1 minute.
After the illumination lasts for 10 minutes, turn off the xenon arc lamp, and continue to
record the temperature changes of the sample and the environment within 10 minutes.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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