KS ISO 21438-3:2010

Workplace atmospheres - Determination of inorganic acids by ion chromatography Part 3: Hydrofluoric acid and particulate fluorides.

Specifies a method for the determination of the time-weighted average mass concentration of soluble particulate fluorides and hydrofluoric acid (HF) in workplace air by collection of the particulate fluorides on a pre-filter and HF on an alkali-imp