HJ 955-2018
Determination of fluoride in ambient air by fluoride ion selective electrode method for filter membrane sampling (English Version)

Standard No.

HJ 955-2018

Language

Chinese, Available in English version

Release Date

2018

Published By

Professional Standard - Environmental Protection

Latest

HJ 955-2018

Replace

HJ 480-2009

Scope

This standard specifies the filter sampling/fluoride ion selective electrode method for the determination of fluoride in ambient air. This standard applies to the determination of gaseous and particulate fluoride in ambient air. When the sampling flow rate is 50 L/min and the sampling time is 1 h, the method detection limit is 0.5 mg/m3 and the lower determination limit is 2.0 mg/m3; when the sampling flow rate is 16.7 L/min and the sampling time is 24 h, the method detection limit It is 0.06 mg/m3, and the lower limit of determination is 0.24 mg/m3. 2

HJ 955-2018 history

• 2018 HJ 955-2018 Determination of fluoride in ambient air by fluoride ion selective electrode method for filter membrane sampling
• 2009 HJ 480-2009 Ambient air.Determination of the fluoride.Filter sampling followed by fluorine ion-selective electrode method

HJ 955-2018 Determination of fluoride in ambient air by fluoride ion selective electrode method for filter membrane sampling has been changed from HJ 480-2009 Ambient air.Determination of the fluoride.Filter sampling followed by fluorine ion-selective electrode method.