本标准以固定代号 E498颁发,代号后面的数字表示最初采用的年份,若经修订,则表示最近修订的年份。括号内的数字表示最近重新审定的年份.本方法隶属于ASTM 无损检测委员会 E—7,并由泄漏检测分委员会 E07.08直接负责.最初版本1973年9月27日出版,1973年11月颁布。(外部为大气压,内部为真空),本文件涉及的示踪探头型见 ASTE 标准年鉴 V010303 This standard is issued under a fixed code E498. The numbers following the code indicate the year of initial adoption and if revised, the most recently revised year. The numbers in brackets denote the year of recent revalidation This method is subject to ASTM Non-Destructive Testing Committee E-7 and is directly under the responsibility of Leak Detection Sub-committee E07.08 Initial publication, published on September 27, 1973, promulgated in November 1973 . (External to atmospheric pressure and internal vacuum), the tracer probe type covered in this document can be found in the ASTE Standard Yearbook V010303