GB/T 4737-2020 English PDF

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GB/T 4737-2020: Test method for osmosis of daily-use pottery
Status: Valid

GB/T 4737: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4737-2020	99	Add to Cart	3 days	Test method for osmosis of daily-use pottery	Valid
GB/T 4737-1984	199	Add to Cart	2 days	Standard test method for permeability water of pottery ware of daily use	Obsolete

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GB/T 3301   GB/T 10811   GB/T 3532   GB/T 4740   GB/T 4734   

Basic data

Standard ID: GB/T 4737-2020 (GB/T4737-2020)
Description (Translated English): Test method for osmosis of daily-use pottery
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y24
Classification of International Standard: 81.060.20
Word Count Estimation: 5,545
Date of Issue: 2020-12-14
Date of Implementation: 2021-07-01
Older Standard (superseded by this standard): GB/T 4737-1984
Quoted Standard: GB/T 3303; GB/T 5000; GB/T 6682
Regulation (derived from): National Standard Announcement No. 28 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the principles, equipment and utensils, sample preparation, test procedures, result expression and test report of the test method for permeability determination of daily pottery. This standard applies to the determination of the permeability of pottery products for daily use. Other types of pottery products can be implemented with reference to this standard.

GB/T 4737-2020: Test method for osmosis of daily-use pottery

---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 permeability of daily pottery) ICS 81:060:20 Y24 National Standards of People's Republic of China Replace GB/T 4737-1984 Test method for permeability of daily pottery 2020-12-14 release 2021-07-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1:1-2009: This standard replaces GB/T 4737-1984 "Method for Determination of Permeability of Daily Pottery": Compared with GB/T 4737-1984, this standard The main technical changes are as follows: --- Added normative reference documents (see Chapter 2); ---Added equipment and utensils (see 5:1, 5:4, 5:7, 5:8); ---Modified sample preparation (see Chapter 6, Chapter 3 of the 1984 edition); ---Modified the test procedure (see Chapter 7, Chapter 4 of the 1984 edition); --- Modified the result display (see Chapter 8, Chapter 5 of the 1984 edition); ---Modified the test report (see Chapter 9, Table 2 of the 1984 edition): This standard was proposed by the China National Light Industry Council: This standard is under the jurisdiction of the National Daily Ceramic Standardization Technical Committee (SAC/TC405): Drafting organizations of this standard: Jiangsu Tianyu Ceramics and Refractory Testing Co:, Ltd:, Yixing Customs of the People's Republic of China, Yixing Yi Workshop Zisha Clay Research Institute Co:, Ltd:, Guangdong Bolin Ceramic Industry Co:, Ltd:, National Ceramic Product Quality Supervision and Inspection Center (Jiangxi), Fujian Provincial Jiamei Group Company, Guangdong Jinqiangyi Ceramics Industrial Co:, Ltd:, Fujian Dehua County Jinfu Ceramics Co:, Ltd:, Dapu County Yifengyuan Industrial Co:, Ltd:, Shaanxi University of Science and Technology: The main drafters of this standard: Yang Yongliang, Wu Yuanzhi, Weng Zhongliang, He Dongqiang, Lin Qiujie, Dai Yapeng, Huang Shifu, Lin Yiqiang, Wu Xuewen, Dai Chunmei, Liu Maochun, Wang Ying: The previous versions of the standard replaced by this standard are as follows: ---GB/T 4737-1984: Test method for permeability of daily pottery

1 Scope

This standard specifies the principles, equipment and utensils, sample preparation, test procedures, result expression and test methods for determining the permeability of daily pottery: experiment report: This standard applies to the determination of the permeability of daily pottery products: Other types of pottery products can be implemented with reference to this standard:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article Pieces: For undated references, the latest version (including all amendments) applies to this document: GB/T 3303 Terminology for defects of household ceramics GB/T 5000 Terminology of Daily Ceramics GB/T 6682 Analytical laboratory water specifications and test methods

3 Terms and definitions

The terms and definitions defined in GB/T 3303 and GB/T 5000 apply to this document:

4 Principle

Permeability is characterized by the initial time for the sample to penetrate water under water pressure:

5 Equipment and utensils

5:1 Drilling sampling machine: equipped with Φ50mm, Φ25mm diamond sampling bit: 5:2 Surface grinder or surface grinder: 5:3 Electric heating drying oven: working temperature (110±5)℃: 5:4 Permeameter: The schematic diagram of the measuring device is shown in Figure 1: The highest test water pressure is 1:0MPa, the accuracy is 1%, and the water outlet aperture of the measuring head is Φ5mm: Φ50mm, Φ25mm cylinder (or piece) sample holder: 5:5 Vernier caliper: accuracy of 0:02mm: ......

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