Standard No.:	DB37/T 3457-2018
English Name:	Ambient air―Determination of tritiated water vapor―Liquid scintillation counting method
Chinese Name:	环境空气 氚化水蒸气的测定 液体闪烁计数法
Chinese Classification:	Z15    Analysis methods for toxic substances in atmosphere
Professional Classification:	DB    Provincial Standard
ICS Classification:	13.040.20 13.040.20    Ambient atmospheres 13.040.20
Issued by:	Shandong Provincial Administration for Market Regulation
Issued on:	2018-12-29
Implemented on:	2019-1-29
Status:	valid
Language:	English
File Format:	PDF
Word Count:	8500 words
Price(USD):	255.00
Delivery:	via email in 1~3 business day

本标准规定了测定环境空气中氚化水蒸气的液体闪烁计数法。
本标准适用于环境空气中氚化水蒸气的测定。
本方法的探测下限取决于：环境温度、相对湿度、采样效率、仪器计数效率、仪器本底计数率、测量时间等。典型条件下，冷凝采样的探测下限可达15 mBq/m
3；干燥剂吸附采样的探测下限可达4 mBq/m
3。