GB/T 16259-2026 Artificial climate aging test method for building materials English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 16259-2026
Artificial climate aging test method for building materials
建筑材料人工气候老化试验方法
Issue date: 2026-02-27 Implementation date: 2027-03-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test apparatus
6 Test conditions
7 Test specimens
8 Test procedure
9 Test results
10 Test report
Test method for accelerated weathering of building materials — Artificial weathering
1 Scope
This document specifies the principle, test apparatus, test conditions, test specimens, test procedure, test results and test report for the accelerated artificial weathering test method for building materials using a xenon-arc lamp (hereinafter referred to as "xenon lamp") as the light source.
This document is applicable to the artificial weathering test of building materials for parts exposed to solar radiation.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 11942, Methods for chromaticity measurement of colour building materials
GB/T 16422.1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance
GB/T 16422.2-2022, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 16422.1 apply.
4 Principle
4.1 A xenon-arc lamp equipped with appropriate filters is used as the light source to simulate the spectral irradiance in the ultraviolet and visible spectral regions of the total solar radiation spectrum.
4.2 Under controlled environmental conditions, test specimens are exposed to varying levels of light, heat, relative humidity and water (see 4.4).
4.3 Optional variable exposure conditions are:
a) Filters;
b) Irradiance;
c) Humidity during light exposure;
d) Relative humidity inside the test chamber during light and dark cycles when humidity control is required;
e) Wetting method of test specimens (see 4.4);
f) Wetting cycles;
g) Relative duration of xenon-arc light exposure and dark cycles.
4.4 Wetting is achieved by spraying the test specimens with softened/deionized water, immersing the specimens in water, or condensing water vapour on the exposed specimen surface.
4.5 The test process includes the measurement of ultraviolet irradiance and ultraviolet radiant exposure on the specimen surface.
4.6 A similar material with known performance (reference material) should preferably be exposed simultaneously with the test specimens for comparison testing.
4.7 Test results from exposures in different apparatuses should not be compared unless an appropriate statistical relationship has been established between the different apparatuses for the specific material being tested.
5 Test apparatus
The test apparatus shall comply with the requirements of Clause 5 in GB/T 16422.2-2022.
6 Test conditions
6.1 Exposure cycle conditions
During testing, the exposure cycles and irradiance levels shall be carried out in accordance with Table 1 and Table 2. Other irradiance levels, dark cycles, water spray cycles and other procedures may also be used with the mutual agreement of the relevant parties. For exposures where the test chamber temperature and relative humidity are not controlled, this shall be noted in the test report.
6.2 Black-standard temperature and black-panel temperature
For arbitration testing, the black-standard temperature shall be used as the primary temperature control parameter. For routine testing, the black-panel thermometer may be used as a substitute for the black-standard thermometer, and this shall be noted in the test report.
Other temperatures may be selected with the agreement of the relevant parties and shall be noted in the test report.
Standard
GB/T 16259-2026 Artificial climate aging test method for building materials (English)
Standard No.
GB/T 16259-2026
Status
to be valid
Language
English
File Format
PDF
Word Count
3500 words
Translation Price(USD)
105.0
Implemented on
2026-12-1
Delivery
via email in 1~3 business day
Detail of GB/T 16259-2026
Standard No.
GB/T 16259-2026
English Name
Artificial climate aging test method for building materials
GB/T 16259-2026 Artificial climate aging test method for building materials English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 16259-2026
Artificial climate aging test method for building materials
建筑材料人工气候老化试验方法
Issue date: 2026-02-27 Implementation date: 2027-03-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test apparatus
6 Test conditions
7 Test specimens
8 Test procedure
9 Test results
10 Test report
Test method for accelerated weathering of building materials — Artificial weathering
1 Scope
This document specifies the principle, test apparatus, test conditions, test specimens, test procedure, test results and test report for the accelerated artificial weathering test method for building materials using a xenon-arc lamp (hereinafter referred to as "xenon lamp") as the light source.
This document is applicable to the artificial weathering test of building materials for parts exposed to solar radiation.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 11942, Methods for chromaticity measurement of colour building materials
GB/T 16422.1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance
GB/T 16422.2-2022, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 16422.1 apply.
4 Principle
4.1 A xenon-arc lamp equipped with appropriate filters is used as the light source to simulate the spectral irradiance in the ultraviolet and visible spectral regions of the total solar radiation spectrum.
4.2 Under controlled environmental conditions, test specimens are exposed to varying levels of light, heat, relative humidity and water (see 4.4).
4.3 Optional variable exposure conditions are:
a) Filters;
b) Irradiance;
c) Humidity during light exposure;
d) Relative humidity inside the test chamber during light and dark cycles when humidity control is required;
e) Wetting method of test specimens (see 4.4);
f) Wetting cycles;
g) Relative duration of xenon-arc light exposure and dark cycles.
4.4 Wetting is achieved by spraying the test specimens with softened/deionized water, immersing the specimens in water, or condensing water vapour on the exposed specimen surface.
4.5 The test process includes the measurement of ultraviolet irradiance and ultraviolet radiant exposure on the specimen surface.
4.6 A similar material with known performance (reference material) should preferably be exposed simultaneously with the test specimens for comparison testing.
4.7 Test results from exposures in different apparatuses should not be compared unless an appropriate statistical relationship has been established between the different apparatuses for the specific material being tested.
5 Test apparatus
The test apparatus shall comply with the requirements of Clause 5 in GB/T 16422.2-2022.
6 Test conditions
6.1 Exposure cycle conditions
During testing, the exposure cycles and irradiance levels shall be carried out in accordance with Table 1 and Table 2. Other irradiance levels, dark cycles, water spray cycles and other procedures may also be used with the mutual agreement of the relevant parties. For exposures where the test chamber temperature and relative humidity are not controlled, this shall be noted in the test report.
6.2 Black-standard temperature and black-panel temperature
For arbitration testing, the black-standard temperature shall be used as the primary temperature control parameter. For routine testing, the black-panel thermometer may be used as a substitute for the black-standard thermometer, and this shall be noted in the test report.
Other temperatures may be selected with the agreement of the relevant parties and shall be noted in the test report.
