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SN/T 4847-2017 English PDF

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SN/T 4847-2017: Test methods for resistance to temperature changes of sanitary appliances
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PDF similar to SN/T 4847-2017


Standard similar to SN/T 4847-2017

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Basic data

Standard ID SN/T 4847-2017 (SN/T4847-2017)
Description (Translated English) Test methods for resistance to temperature changes of sanitary appliances
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard Q31
Word Count Estimation 4,420
Date of Issue 2017-07-21
Date of Implementation 2018-03-01
Adopted Standard EN 14688-2006, NEQ; EN 13310-2003, NEQ; EN 14527-2006+A1-2010, NEQ; EN 14516-2006+A1-2001, NEQ
Regulation (derived from) State-Quality-Inspection-Accreditation (2017) 337
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the rapid cold resistance test method for sanitary wares such as face washers, washing tubs, shower trays, and bathtubs. This standard is applicable to the test of the rapid heat resistance of sanitary wares such as face cleaners, washing tanks, shower trays and bathtubs.

SN/T 4847-2017: Test methods for resistance to temperature changes of sanitary appliances

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Test methods for resistance to temperature changes of sanitary appliances People's Republic of China entry and exit inspection and quarantine industry standards Sanitary ware resistance to rapid cooling and heat test method Released on.2017-07-21 2018-03-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting method to refer to EN14688.2006 "Sanitary Ware Washer Functional Requirements and Test Methods", EN13310.2003 "Functional requirements and test methods for kitchen sinks", EN14527.2006 A1.2010 "Household shower trays", EN14516. 2006 A1.2010 "Bathtub" is a compilation of the content of the rapid cold resistance test method. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Hebei Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Guangdong Entry-Exit Inspection and Quarantine Bureau, Hunan Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, National Center for Drainage and Water-saving Equipment Product Quality Supervision and Inspection. The main drafters of this standard. Jiang Bo, Yuan Fangli, Zhao Shuzhong, Lin Sen, He Peng, Cui Weixia, Wang Haitao, Yang Xinmin, Zhu Yuanyuan, Yin Jinshuang, Li Wenjie, Xiao Jinghong, Liu Yamin. Sanitary ware resistance to rapid cooling and heat test method

1 Scope

This standard specifies the rapid cold resistance test method for sanitary wares such as face washers, washing tubs, shower trays, and bathtubs. This standard is applicable to the test of the rapid heat resistance of sanitary wares such as face cleaners, washing tanks, shower trays and bathtubs.

2 Principle of the method

Simulate the use of hot and cold water during the use of sanitary ware, apply hot water and cold water directly to the test sample, and accept the external temperature. A sharp change in the degree of observation, whether the sample is cracked or broken, to determine the resistance to rapid cooling and heat performance of sanitary ware.

3 Equipment and materials

3.1 Hot water supply system, capable of providing (70 ± 2) ° C, (75 ± 2) ° C, (90 ± 2) ° C hot water. 3.2 Cold water supply system capable of providing (12 ± 3) ° C, (15 ± 2) ° C cold water. 3.3 Outlet pipe with an inner diameter of 10mm, used for the output of hot and cold water in the washer and sink test. 3.4 Outlet pipe with an inner diameter of 22mm for the output of hot and cold water in the bathtub test. 3.5 Shower for the output of hot and cold water in the shower tray test. 3.6 Test bench, the sample to be tested can be placed horizontally, and the sample should not be subjected to any pressure. 3.7 Thermometer, measuring temperature range from 0 °C to 100 °C, accurate to ±1 °C. 3.8 Flowmeter, measuring range from 0.05L/s to 0.5L/s, accurate to 0.001L/s. 3.9 Balance, the sensitivity is 1g. 3.10 stopwatch. 3.11 Staining solution. Add 1 mL of detergent to 100 g of methylene blue and dilute to 1 L with distilled water. 3.12 tape measure, accurate to 1mm. 3.13 Illuminance meter, accurate to 0.1lx.

4 test samples

Test samples require no defects such as cracks and breakage.

5 test steps

5.1 face washer 5.1.1 Select any point within the area of the (110 ± 5) mm diameter of the drain outlet of the washer. 5.1.2 Adjust the height of the hot and cold water outlet of the water supply system. It is required to be located at the top of the washout point (80±5) mm. 5.1.3 Open the drain outlet and open (70±2) °C hot water (90±1)s at a flow rate of (0.1±0.01) L/s, stop (30±1)s, and then The flow rate is turned on (15 ± 2) °C cold water (90 ± 1) s, stop (30 ± 1) s. This process is repeated 1000 times without interruption.

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