Search result: GB/T 3298-2022 (GB/T 3298-2008 Older version)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3298-2022 | English | 139 |
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Test method for resistance to thermal shock of domestic ceramic ware
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GB/T 3298-2022
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| GB/T 3298-2008 | English | 199 |
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Standard test method for crazing resistance of domestic ceramic ware by a thermal shock method
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GB/T 3298-2008
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| GB/T 3298-1991 | English | 199 |
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Standard test method for thermal shock resistance of domestic ceramic ware
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GB/T 3298-1991
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| Standard ID | GB/T 3298-2022 (GB/T3298-2022) | | Description (Translated English) | | | Sector / Industry | National Standard (Recommended) |
GB/T 3298-2022
Test method for resistance to thermal shock of domestic ceramic ware
ICS 81.060.20
CCSY24
National Standards of People's Republic of China
Replacing GB/T 3298-2008
Determination method of thermal shock resistance of household ceramics
Published on 2022-04-15
2022-11-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document replaces GB/T 3298-2008 "Determination of Thermal Shock Resistance of Household Ceramics". Compared with GB/T 3298-2008, except for the
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
--- Changed the setting of the control temperature according to the requirements of thermal shock resistance (see 8.2.1, 5.2 of the.2008 edition);
--- Added incremental test method (see 8.3);
--- Added test data processing (see Chapter 9);
--- Changed the test report (see Chapter 10, Chapter 6 of the.2008 edition).
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China National Light Industry Federation.
This document is under the jurisdiction of the National Standardization Technical Committee of Ceramics for Daily Use (SAC/TC405).
This document is drafted by. Jiangxi Provincial Ceramic Testing Center, Shenzhen National Ceramics Yongfengyuan Porcelain Industry Co., Ltd., Hejiang County Huayi Ceramics Co., Ltd.
Co., Ltd., Zibo Huaguang National Ceramics Technology and Culture Co., Ltd., Fujian Huaxia King Kong Technology Co., Ltd., Fujian Jiamei Group Corporation, Guangxi
Sanhuan Enterprise Group Co., Ltd., Guangdong Stone Group Co., Ltd., Chaozhou Huazhong Ceramics Industry Co., Ltd.
The main drafters of this document. Dai Yapeng, Xu Jian, Xiao Shuming, Li Xiaoliang, Lin Guiji, Su Chenyi, Yi Yuan, Wen Yuan, Cai Yize, Huang Zhifa.
The previous versions of this document and its superseded documents are as follows.
--- First published in 1983 as GB 3298-1982, first revised in.1991, second revised in.2008;
---This is the third revision.
Determination method of thermal shock resistance of household ceramics
1 Scope
This document describes a method for determining the thermal shock resistance of household ceramics by temperature change.
This document applies to household pottery and porcelain.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 5000 Terminology of Ceramics for Daily Use
3 Terms and Definitions
Terms and definitions defined in GB/T 5000 apply to this document.
4 Principles
By accepting the rapid changes in the external temperature, the daily-use ceramics products are observed to see whether cracks or damages appear, and determine their
Thermal shock resistance.
5 Reagents or materials
5.1 Specimen basket or specimen holder.
5.2 Dyeing solution (such as ink, methylene blue solution, etc.), brush pen.
6 Instruments and equipment
6.1 Heating furnace. a heating furnace with a sufficient heating rate to ensure that the temperature rises to the test temperature within 15 minutes after the sample is placed, and the working area can be controlled.
The temperature difference is within ±5℃.
6.2 Flowing water tank. flowing water that can keep the temperature at 20°C±2°C, the mass ratio of water in the water tank to the sample is greater than 10.1, and the sample is put into water.
After the test, the water surface should be about 20mm higher than the sample, and the water temperature should not rise by more than 4°C.
7 samples
At least 5 samples shall be taken from the same production batch of products with the same specifications and shapes, and the samples shall be free of defects such as cracks and breakages.
......
GB/T 3298-2008
Standard test method for crazing resistance of domestic ceramic ware by a thermal shock method
ICS 81.060.20
Y24
National Standards of People's Republic of China
Replacing GB/T 3298-1991
Household ceramics thermal shock resistance measurement method
Posted 2008-08-28
2008-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard ASTMC554-1993 (Reapproved2006) "white glazed ceramic thermal shock resistance measurement method" consistency
Not equivalent. For more suited to China's national conditions, this standard when using the above criteria have been modified, the main differences are as follows.
--- ASTMC554-93 (Reapproved2006) equipment for the oven and the temperature difference of ± 3 ℃ can be maintained at a temperature (20 ± 3) ℃ water content
Is the standard equipment for the work area to control the temperature difference is not greater than ± 5 ℃ of furnace and maintaining the temperature (20 ± 2) ℃ flow
Water tank;
--- ASTMC554-93 (Reapproved2006) the specified test temperature of the sample was 121 ℃ ~ 232 ℃, the standard measurement of the sample
Test temperature requirements as "a variety of products based on the standard against thermal shock requirements set control temperature";
--- ASTMC554-93 (Reapproved2006) for each temperature point three consecutive thermal cycles, after each cycle to see if there is
Cracks, damage and other defects, this standard after the first thermal cycle to see if there are cracks, damage and other defects, standing 24h after the review
once.
This standard replaces GB/T 3298-1991 "Determination of thermal stability of domestic ceramic ware."
The main changes in the standard of GB/T 3298-1991 "Determination of thermal stability of domestic ceramic ware" as follows.
--- Standard name from "ceramic ware Determination of thermal stability" to "Determination of thermal shock resistance of ceramic ware";
--- The second chapter, "The Summary" to "principle";
--- To Chapter 3, "instruments and appliances," and Chapter 5, "test conditions" merged into Chapter 3, "equipment and materials";
--- The Chapter 4, "sampling provisions" to "sample";
--- The Chapter 6, "Test Procedure" was changed to Chapter 5, "Procedure";
--- Deleted the Chapter 7, "the measurement results."
The standard proposed by China National Light Industry Council.
This standard by the National Standardization Center ceramics.
This standard is drafted by. National Ceramic Products Quality Supervision and Inspection Center (Jiangxi).
Participated in the drafting of this standard. People's Republic of China Jingdezhen Exit Inspection and Quarantine, Raoping Sanyi Industrial Development Co.,
Chaozhou Lianyuan Ceramics Making Co., Ltd., Guangxi Sanhuan Enterprise Group Co., Ltd.
The main drafters of this standard. Xu Lihua, Wang Xiuying, Zhang and expensive, Chenbing Kun, Cai Ruixin, Wang Weilin, Huta.
This standard replaces the standards previously issued as follows.
--- GB 3298-1982, GB/T 3298-1991.
Household ceramics thermal shock resistance measurement method
1 Scope
This standard specifies the ceramic ware thermal shock resistance test methods.
This standard applies to pottery, stoneware, porcelain, ceramic crucible, insulation ceramic utensils and other ceramic products may refer to the implementation of this standard.
Principle 2
Determine their products accepted by ceramic ware dramatic changes in the outside temperature, ceramic products for daily use observed whether cracks or damage,
Thermal shock resistance.
3 equipment and materials
3.1 furnace. heating with sufficient speed to ensure the sample after placed within 15min to the test temperature rise can be controlled work area
Temperature not more than ± 5 ℃ furnace, one Taiwan.
3.2 Flow Sink. to maintain a temperature of (20 ± 2) ℃ mass flow of water tank, the water tank with the sample water is greater than 10.1 sample input
After water, the water should be higher than a sample of about 20mm, the water temperature increase should not exceed 4 ℃.
3.3 sample or specimen holder several baskets.
3.4 staining solution (such as ink, methylene blue, etc.), a number of brush strokes.
4 Sample
4.1 Number of. Specifications of the same production batch of the same type the same five products.
4.2 Quality. The specimen No cracks, damage and other defects.
5 Steps
5.1 The surface of the sample coated with appropriate staining solution (such as ink, methylene blue, etc.), to be slightly dry wipe staining solution. With the naked eye (flat
Often wearing glasses to wear glasses) in samples from 25cm ~ 35cm, light illumination lighting conditions about 300lx observe whether there is a sample split
Pattern, damage and other defects. All samples should be free of cracks, damage and other defects.
5.2 Open furnace, various types of products against thermal shock resistance standards set temperature control requirements.
5.3 Open tank flow temperature control system.
5.4 4.1, 4.2 will meet the prescribed five samples within the sample is fixed to the basket four weeks or a specimen holder (not overlap each other between the sample), solid
In contact with the sample was given as little as possible to preserve enough clearance to make the water flow freely.
5.5 Furnace control the temperature and flow sinks meet the requirements, the specimen holder or the sample basket containing the sample is placed horizontally plus
Hot oven until the temperature rose to measuring temperature, maintaining 30min.
After incubation of the sample 5.6, vertical input (20 ± 2) ℃ water in the 15s, holding 10min (at this time the water was up sample required at least
20mm, increasing the water temperature should not exceed 4 ℃).
5.7 dry sample was taken out of water, the sample surface and then coated with a suitable staining solution (such as ink, methylene blue, etc.), to be slightly dry wipe stained
Color solution. With the naked eye (usually wear glasses can wear glasses) in a sample from the lighting conditions 25cm ~ 35cm, light illumination of about 300lx
Under observe whether the sample cracks, damage and other defects. Review once standing 24h.
6 Test report
The test report shall include the following.
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