
Water quality - Gross beta activity - Test method using thick source
出版:Netherlands Standards

专家解读视频
NEN-EN-ISO 9697 specifies a test method for the determination of gross beta activity concentration in non-saline waters.
EN ISO 9697:2019 - Identical
ISO 9697:2018 - Identical
EN ISO 9697:2019 - Identical
ISO 9697:2018 - Identical