PHS-3C Precision pH Meter
PHS-3C Precision pH Meter
Scope of Application
【Operating Instructions】
- Used for pH testing of various face masks.
PHS-3C Precision pH Meter
[Scope of Application]Used for pH testing of various face masks.
[Compliance Standards]
GB/T 32610-2016 Technical specification for daily protective masks, Section 6.4 pH value
GB/T 7573-2009 Textiles — Determination of pH of aqueous extract
