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CJ/T 449-2014: Diaphragm gas meter with shut-off valve
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
CJ/T 449-2014	English	599	Add to Cart	4 days [Need to translate]	Diaphragm gas meter with shut-off valve

CJ/T 449-2014: Diaphragm gas meter with shut-off valve

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Diaphragm gas meter with shut-off valve ICS 75.180.30; 91.140 P47 People's Republic of China urban construction industry standards Cut off the membrane gas meter Posted on.2014-03-27 2014-07-01 implementation Ministry of Housing and Urban-Rural Development, People's Republic of China released Directory Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Model 2 5 General requirements 2 6 Requirements 3 7 Test Method 7 Inspection rules 16 Identification, packaging, transportation and storage 18 Appendix A (Informative) Cut-off type gas meter wireless communication interface 19

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the Ministry of Housing and Urban Standard and Design Institute. This standard by the Ministry of Housing and Urban Gas Standardization Technical Committee centralized. This standard was drafted. Chongqing avant-garde Crome Watch Co., Ltd., Taiyuan Coal Gasification (Group) Co., Ltd., China City North China Engineering Design and Research Institute, Tianjin Puhai New Technology Co., Ltd., Chengdu Qinchuan Technology Development Co., Ltd., Zhejiang Songchuan Instrumentation Technology Co., Ltd., Xintian Science and Technology Co., Ltd., Dandong Iwatari Oriental Gas Meter Co., Ltd., Tianjin Figaro Electronics Co., Ltd., Rongcheng Yuxiang Industrial Co., Ltd., Henan Hanwei Electronics Co., Ltd., Shenyang Aerospace Star Instruments Limited liability company, Chongqing Yamashiro Gas Equipment Co., Ltd., Hangzhou Pioneer Electronic Technology Co., Ltd., Tianjin Everbright Albert measurement Instrument Technology Co., Ltd., Ningbo Tianxin Instrument Co., Ltd., Cixi Sanyo Electronics Co., Ltd., Ningbo Tianyuan Electronic Instrument Co., Ltd., National Gas Appliances Quality Supervision and Inspection Center. The main drafters of this standard. Jiang Yu, Wang Qi, Zhao Guowei, Liu Bin, Niu Jun, Quan Yaqiang, Zhou Fugen, Guo Gang, Fei war wave, Li Mingfa, Li Qi, Yin Rui, Zou Ziming, Chang Lei, Cheng Bo, Li Keqin, Xie Jun, Li Yuxia, Lin Aisu, Xuan Guoping, Zhao Dali, Hu Zhen, Li Jun, Yan Rongsong. Cut off the membrane gas meter

1 Scope

This standard specifies the cut-type membrane gas meter (hereinafter referred to as the gas meter) terms and definitions, models, general requirements, requirements, test side Law, inspection rules, marking, packaging, transportation and storage. This standard applies to the maximum working pressure does not exceed 10kPa, the maximum flow does not exceed 10m3/h, to adapt to the minimum operating temperature range -10 ℃ ~ 40 ℃ gas meter design, production, testing and acceptance.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 191 Packaging - Pictorial signs GB/T 1690 vulcanized rubber or thermoplastic rubber liquid test methods GB/T 2423.1 Environmental testing for electric and electronic products Part 2. Test methods Test A. Low temperature GB/T 2423.2 Environmental testing for electric and electronic products Part 2. Test methods Test B. high temperature GB/T 2423.3 Environmental testing for electric and electronic products Part 2. Test methods Test Cab. constant hot and humid test GB/T 2423.17 Environmental testing for electric and electronic products Part 2. Test methods Test Ka. salt spray GB/T 2828.1 Sampling procedures for inspection - Part 1. Batch inspection sampling plan by acceptance quality limit (AQL) GB/T 2829 cycle test count sampling procedures and tables (for the stability of the test process) GB 4208 enclosure protection (IP code) GB/T 5080.7-1986 Equipment reliability test Constant failure rate assumption failure rate and mean time to failure test Experience program Membrane gas meter GB/T 6968-2011 GB/T 17626.2 Electromagnetic compatibility test and measurement techniques Electrostatic discharge immunity test GB/T 17626.3 Electromagnetic compatibility testing and measurement techniques RF electromagnetic field immunity test Gas service guide GB/T 28885-2012 CJ/T 188 household measuring instruments data transmission technology CJ/T 421 household gas burner with electronic controller

3 Terms and definitions

GB/T 6968-2011 defined and the following terms and definitions apply to this document. 3.1 Membrane gas meter as the base table, built-in shut-off valve, controller and other auxiliary devices with the monitoring of gas use status, different Often cut off gas and alarm gas metering device. 3.2 Base table basegasmeter Measuring instruments with basic metering functions that directly display raw gas usage data and are separated from other additional functions. ...