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GB/T 34252-2017: Test method for crazing resistance of domestic ceramic wares
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 34252-2017 | English | 109 |
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Test method for crazing resistance of domestic ceramic wares
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GB/T 34252-2017
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Basic data | Standard ID | GB/T 34252-2017 (GB/T34252-2017) | | Description (Translated English) | Test method for crazing resistance of domestic ceramic wares | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Y24 | | Word Count Estimation | 5,546 | | Date of Issue | 2017-09-07 | | Date of Implementation | 2018-04-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 34252-2017: Test method for crazing resistance of domestic ceramic wares---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for crazing resistance of domestic ceramic wares
ICS 81.060.20
Y24
National Standards of People's Republic of China
Daily porcelain glaze crack test methods
2017-09-07 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the China Light Industry Federation.
This standard by the National Ceramics Standardization Technical Committee (SAC/TC405) centralized.
This standard was drafted unit. National Ceramic Products Quality Supervision and Inspection Center (Jiangxi), Zibo Huaguang Ceramics Technology Co., Ltd., Fujian
Crown Fook Industrial Co., Ltd., Fujian Dehua Geli Ceramics Co., Ltd., Shenzhen City Porcelain Yongfeng source Porcelain Co., Ltd.
The main drafters of this standard. Li Shuo, Xu Lihua, Zhang Ning, generation after soldiers, Yu Limei, Nie Wenzhi.
Daily porcelain glaze crack test methods
1 Scope
This standard specifies the daily glaze anti-glaze test methods.
This standard applies to the surface glaze daily pottery, stoneware, porcelain glaze resistance test.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Glaze cracked crazing
Glaze layer cracks due to sufficient tension of the glaze due to wet expansion or hot pressing of the carcass.
2.2
Wet expansion moistureexpansion
Carcass due to the expansion of water absorption.
2.3
Thermal shock thermalshock
The temperature changes dramatically.
3 principle
The sample was placed in an autoclave and tested for glaze cracking caused by wet expansion after several cycles under a certain pressure, saturated water vapor. (Should be slow
Slowly increase and decrease the vapor pressure to reduce the possibility of thermal shock. The sample should be inspected after each cycle, and the glaze checked by staining the surface of the sample
Whether the surface is cracked )
4 apparatus and equipment
4.1 autoclave
The steam pressure is at least 1.0 MPa and can hold multiple samples. Should be equipped with manometer, safety valve, deflation valve, at above atmospheric pressure
Test accuracy of ± 34kPa, pressure gauge and built-in to meet the requirements of a constant steam pressure heat source device.
4.2 staining aqueous solution
Eosin containing (5 ± 1) g/L and a daily wash solution of (5 ± 1) g/L.
4.3 other
Soft cotton cloth.
5 sample
At least 7 unused samples.
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