Standard No.:	GB/T 16781.1-2008
English Name:	Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine
Chinese Name:	天然气 汞含量的测定 第1部分：碘化学吸附取样法
Chinese Classification:	E24    Natural gas
Professional Classification:	GB    National Standard
Issued by:	CNPC
Issued on:	1997-5-8
Implemented on:	2009-6-1
Status:	superseded
Superseded by:	GB/T 16781.1-2017 Natural gas--Determination of mercury--Part 1: Sampling of mercury by chemisorption on iodine
Superseded on:	2018-4-1
Superseding:	GB/T 16781.1-1997 Natural gas-Determination of mercury-Atomic absorption spectrometry
Language:	English
File Format:	PDF
Word Count:	9000 words
Price(USD):	270.00
Delivery:	via email in 1~3 business day

本部分规定了用碘浸渍硅胶化学吸附取样法测定天然气中汞含量的方法，取样压力最高达40MPa。本方法适用于测定天然气中含量为0.1μg／m3~5000μg/m3范围内的汞。本方法适用于所
取样品体积中硫化氢质量小于20mg；且在取样条件下液态烃凝析液总量小于10g/m3的样品气。通过测量波长为253.7nm 处汞蒸气的吸光度或荧光度来确定其被收集的量。