Standard No.:	GB/T 18604-2001
English Name:	Measurement of natural gas flow by ultrasonic flow meter
Chinese Name:	用气体超声流量计测量天然气流量
Chinese Classification:	E98    Oil and gas gathering and transportation equipment
Professional Classification:	GB    National Standard
ICS Classification:	75.180.30 75.180.30    Volumetric equipment and measurements 75.180.30
Issued by:	AQSIQ
Issued on:	2001-1-2
Implemented on:	2002-8-1
Status:	superseded
Superseded by:	GB/T 18604-2014 Measurement of Natural Gas Flow by Gas Ultrasonic Flow Meters
Superseded on:	2014-6-1
Abolished on:	2014-06-01
Language:	English
File Format:	PDF
Word Count:	12000 words
Price(USD):	360.00
Delivery:	via email in 1~3 business day

本标准适用于传播时间差法气体超声流量计，其通径大于或等于100mm，压力不低于0.1MPa（表压）。一般用于气质符合本标准第5.1条款规定的生产装置、输气管线、储藏设备、配气系统和用户计量系统中的天然气流量测量。本标准使用的天然气体积计算标准参比条件为0.101 325MPa（绝压），温度为20℃（293.15K）。也可采用合同规定的其他参比条件。