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GB/T 8323.2-2008 English PDF (GBT8323.2-2008)
GB/T 8323.2-2008 English PDF (GBT8323.2-2008)
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GB/T 8323.2-2008: Plastic - Smoke generation - Part 2: Determination of optical density by a single-chamber test
GB/T 8323.2-2008
Plastic. Smoke generation. Part 2. Determination of optical density by a single-chamber test
ICS 13.220.40
G31
National Standards of People's Republic of China
GB/T 8323.2-2008/ISO 5659-2.2006
Replace GB/T 8323-1987
Plastic smoke generation
Part 2. Test method for determination of smoke density by single chamber method
(ISO 5659-2.2006, IDT)
Released on.2008-12-30
2009-08-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Content
Foreword I
1 range 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 2
5 Materials for testing 2
6 Sample structure and preparation 3
7 Instruments and auxiliary equipment 4
8 Test environment 15
9 Installation and Calibration Procedure 15
10 Test Step 18
11 results indicate 19
12 precision 20
13 Test report 20
Appendix A (Normative) Calibration of the heat flow meter 21
Appendix B (informative) Variability of smoke-to-optical density measured in single-chamber measurements 22
Appendix C (informative) Determination of mass optical density 24
Appendix D (informative) Expansive materials test data precision 29
Reference 31
GB/T 8323.2-2008/ISO 5659-2.2006
Foreword
GB/T 8323 "Plastic Smoke Generation" is divided into the following two parts.
--- Part 1. Guidelines for smoke density test methods;
--- Part 2. Test method for determination of smoke density by single chamber method.
This part is the second part of the standard GB/T 8323, equivalent to ISO 5659.2.2006 "Plastic - smoke generation --- Part 2
Points. Single-chamber Method for Measuring Optical Density, for editorial changes.
--- Removed the preface to ISO 5659.2.2006;
--- Replace "this part of ISO 5659" with "this part of GB/T 8323";
--- Replace the international standards cited in the standard with the corresponding national standards;
--- Change some expressions applicable to international standards to those applicable to Chinese standards.
This part replaces GB/T 8323-1987 "Plastics Density Test Method for Plastics Burning Performance", compared with GB/T 8323-1987
The differences are as follows.
--- Adding materials other than plastics in the scope of application (the original post-title suspension section, 1.1 of this edition);
--- Increased the main purpose of this test method (1.3 of this edition);
--- It is clear that the smoke generated by the material will vary according to the irradiance of the sample exposed, and the test mode is added to the test method.
And illuminance requirements (1.4 and 10.9.1 of this edition);
--- Added normative references (Chapter 2 of this edition);
--- Added 10 terms and definitions for assemblies, composites, irradiance, etc., removed the term flameless combustion test and flaming combustion
Test 2 terms and definitions (Chapter 1 of the original, Chapter 3 of this edition);
--- Added principle (Chapter 4 of this edition);
--- Increased the distance between the sample and the radiation cone from the sample when the pre-test of the expansive material is 50mm (6.1.4 of this edition);
---The side length tolerance of the sample changed from "0-+0.5mm" to "±1mm", and the thickness is specified as 25mm (original version 2.1, this edition)
6.2);
---The requirements for the sample liner are divided into three categories according to the thickness of the sample (6.4.2 of this edition);
--- Added sample preparation requirements for elastic materials and thin airtight specimens (6.4.3 and 6.4.4 of this edition);
--- The state adjustment time changed from 24h to the constant weight of the sample (Chapter 3 of the original, 6.5.1 of this edition), adding state adjustment
Sample placement requirements (6.5.2 of this edition);
---Specified size and functional requirements for equipment (Chapter 4 of the original, Chapter 7 of this edition);
--- Cancel the operation of covering the test box window with opaque curtain when the transmittance is less than 0.01% (the original 5.13);
--- Increased the test environment (Chapter 8 of this edition);
--- Added calibration of various parts of the device (Chapter 9 of this edition);
--- The termination time of the test is the minimum or 10min transmittance (the original version of 5.14, 10.8 of this edition);
--- Cancel the calculation formula of average smoke speed, calibration smoke density, and sample mass loss rate;
--- Appendix A is changed from "Calibration and detailed description of test equipment (supplement)" to "Calibration of heat flow meter (normative appendix)";
--- Appendix B changed from "Calculation example and supplementary calculation (supplement)" to "Variation of smoke specific optical density measured in single-chamber measurement"
(informative appendix)";
--- Added Appendix C "Determination of Mass Optical Density (Informative Appendix)" and Appendix D "Precision of Test Data for Expansive Materials (Information
Sexual appendix)";
--- Added references.
GB/T 8323.2-2008/ISO 5659-2.2006
Appendix A of this part is a normative appendix, and Appendix B, Appendix C and Appendix D are informative appendices.
This section was proposed by the China Petroleum and Chemical Industry Association.
This part is under the jurisdiction of the National Plastics Standardization Technical Committee General Method and Product Branch for Plastic Resins (SAC/TC15/SC4).
This section is responsible for drafting the unit. National Synthetic Resin Quality Supervision and Inspection Center.
Participated in the drafting of this section. Nanjing Jiangning District Analytical Instrument Factory, Guangzhou Blonde Technology Co., Ltd., National Plastic Products Quality Inspection Center
(Fuzhou).
The main drafters of this section. Zhao Ping, Wang Fuhai, Li Jianjun, He Wei.
This section replaces the previous status of the standard. GB/T 8323-1987.
GB/T 8323.2-2008/ISO 5659-2.2006
Plastic smoke generation
Part 2. Test method for determination of smoke density by single chamber method
1 range
1.1 This part of GB/T 8323 specifies specimens of sheets, composites or specimens not exceeding 25 mm in thickness, placed vertically
In a closed cabinet equipped with a specified level of heat radiation source, the side that generates smoke from the exposed surface is measured with or without a pilot flame.
law. This test method is applicable to all plastics and can also be applied to the evaluation of other materials (eg rubber, textile coverings, painted surfaces,
Wood and other materials).
1.2 It should be noted that the optical density value of the smoke measured by this test method is measured under the specified shape and size of the sample or assembly.
It cannot be considered as its inherent basic performance.
1.3 This test is mainly used for R and D and fire safety engineering of buildings, trains, boats, etc., and cannot be used as the basis for building rating or
Other purposes. There is no basis for predicting the smoke density produced by materials exposed to heat or flame under other (actual) combustion conditions,
There is also no connection to the data obtained by other test methods. This test procedure eliminates the effects of irritants on the eye.
Note. This test procedure discusses the loss of vision due to smoke density, which is usually independent of irritancy, as explained in Section 1 of this standard.
1.4 It is important to emphasize that the smoke generated by the material will vary depending on the illuminance of the sample exposed. Therefore, at the junction using this me...
Get QUOTATION in 1-minute: Click GB/T 8323.2-2008
Historical versions: GB/T 8323.2-2008
Preview True-PDF (Reload/Scroll if blank)
GB/T 8323.2-2008: Plastic - Smoke generation - Part 2: Determination of optical density by a single-chamber test
GB/T 8323.2-2008
Plastic. Smoke generation. Part 2. Determination of optical density by a single-chamber test
ICS 13.220.40
G31
National Standards of People's Republic of China
GB/T 8323.2-2008/ISO 5659-2.2006
Replace GB/T 8323-1987
Plastic smoke generation
Part 2. Test method for determination of smoke density by single chamber method
(ISO 5659-2.2006, IDT)
Released on.2008-12-30
2009-08-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Content
Foreword I
1 range 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 2
5 Materials for testing 2
6 Sample structure and preparation 3
7 Instruments and auxiliary equipment 4
8 Test environment 15
9 Installation and Calibration Procedure 15
10 Test Step 18
11 results indicate 19
12 precision 20
13 Test report 20
Appendix A (Normative) Calibration of the heat flow meter 21
Appendix B (informative) Variability of smoke-to-optical density measured in single-chamber measurements 22
Appendix C (informative) Determination of mass optical density 24
Appendix D (informative) Expansive materials test data precision 29
Reference 31
GB/T 8323.2-2008/ISO 5659-2.2006
Foreword
GB/T 8323 "Plastic Smoke Generation" is divided into the following two parts.
--- Part 1. Guidelines for smoke density test methods;
--- Part 2. Test method for determination of smoke density by single chamber method.
This part is the second part of the standard GB/T 8323, equivalent to ISO 5659.2.2006 "Plastic - smoke generation --- Part 2
Points. Single-chamber Method for Measuring Optical Density, for editorial changes.
--- Removed the preface to ISO 5659.2.2006;
--- Replace "this part of ISO 5659" with "this part of GB/T 8323";
--- Replace the international standards cited in the standard with the corresponding national standards;
--- Change some expressions applicable to international standards to those applicable to Chinese standards.
This part replaces GB/T 8323-1987 "Plastics Density Test Method for Plastics Burning Performance", compared with GB/T 8323-1987
The differences are as follows.
--- Adding materials other than plastics in the scope of application (the original post-title suspension section, 1.1 of this edition);
--- Increased the main purpose of this test method (1.3 of this edition);
--- It is clear that the smoke generated by the material will vary according to the irradiance of the sample exposed, and the test mode is added to the test method.
And illuminance requirements (1.4 and 10.9.1 of this edition);
--- Added normative references (Chapter 2 of this edition);
--- Added 10 terms and definitions for assemblies, composites, irradiance, etc., removed the term flameless combustion test and flaming combustion
Test 2 terms and definitions (Chapter 1 of the original, Chapter 3 of this edition);
--- Added principle (Chapter 4 of this edition);
--- Increased the distance between the sample and the radiation cone from the sample when the pre-test of the expansive material is 50mm (6.1.4 of this edition);
---The side length tolerance of the sample changed from "0-+0.5mm" to "±1mm", and the thickness is specified as 25mm (original version 2.1, this edition)
6.2);
---The requirements for the sample liner are divided into three categories according to the thickness of the sample (6.4.2 of this edition);
--- Added sample preparation requirements for elastic materials and thin airtight specimens (6.4.3 and 6.4.4 of this edition);
--- The state adjustment time changed from 24h to the constant weight of the sample (Chapter 3 of the original, 6.5.1 of this edition), adding state adjustment
Sample placement requirements (6.5.2 of this edition);
---Specified size and functional requirements for equipment (Chapter 4 of the original, Chapter 7 of this edition);
--- Cancel the operation of covering the test box window with opaque curtain when the transmittance is less than 0.01% (the original 5.13);
--- Increased the test environment (Chapter 8 of this edition);
--- Added calibration of various parts of the device (Chapter 9 of this edition);
--- The termination time of the test is the minimum or 10min transmittance (the original version of 5.14, 10.8 of this edition);
--- Cancel the calculation formula of average smoke speed, calibration smoke density, and sample mass loss rate;
--- Appendix A is changed from "Calibration and detailed description of test equipment (supplement)" to "Calibration of heat flow meter (normative appendix)";
--- Appendix B changed from "Calculation example and supplementary calculation (supplement)" to "Variation of smoke specific optical density measured in single-chamber measurement"
(informative appendix)";
--- Added Appendix C "Determination of Mass Optical Density (Informative Appendix)" and Appendix D "Precision of Test Data for Expansive Materials (Information
Sexual appendix)";
--- Added references.
GB/T 8323.2-2008/ISO 5659-2.2006
Appendix A of this part is a normative appendix, and Appendix B, Appendix C and Appendix D are informative appendices.
This section was proposed by the China Petroleum and Chemical Industry Association.
This part is under the jurisdiction of the National Plastics Standardization Technical Committee General Method and Product Branch for Plastic Resins (SAC/TC15/SC4).
This section is responsible for drafting the unit. National Synthetic Resin Quality Supervision and Inspection Center.
Participated in the drafting of this section. Nanjing Jiangning District Analytical Instrument Factory, Guangzhou Blonde Technology Co., Ltd., National Plastic Products Quality Inspection Center
(Fuzhou).
The main drafters of this section. Zhao Ping, Wang Fuhai, Li Jianjun, He Wei.
This section replaces the previous status of the standard. GB/T 8323-1987.
GB/T 8323.2-2008/ISO 5659-2.2006
Plastic smoke generation
Part 2. Test method for determination of smoke density by single chamber method
1 range
1.1 This part of GB/T 8323 specifies specimens of sheets, composites or specimens not exceeding 25 mm in thickness, placed vertically
In a closed cabinet equipped with a specified level of heat radiation source, the side that generates smoke from the exposed surface is measured with or without a pilot flame.
law. This test method is applicable to all plastics and can also be applied to the evaluation of other materials (eg rubber, textile coverings, painted surfaces,
Wood and other materials).
1.2 It should be noted that the optical density value of the smoke measured by this test method is measured under the specified shape and size of the sample or assembly.
It cannot be considered as its inherent basic performance.
1.3 This test is mainly used for R and D and fire safety engineering of buildings, trains, boats, etc., and cannot be used as the basis for building rating or
Other purposes. There is no basis for predicting the smoke density produced by materials exposed to heat or flame under other (actual) combustion conditions,
There is also no connection to the data obtained by other test methods. This test procedure eliminates the effects of irritants on the eye.
Note. This test procedure discusses the loss of vision due to smoke density, which is usually independent of irritancy, as explained in Section 1 of this standard.
1.4 It is important to emphasize that the smoke generated by the material will vary depending on the illuminance of the sample exposed. Therefore, at the junction using this me...
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