Phosphine (PH3) Specification Summary

TVA (TLV): 0.3 ppm

STEL (TLV): 1 ppm

Flammable Range: 2–100%

Part Number Range Class Measurement
Range
No. of
Strokes
CFV* Volume Sampling
Time
Color
Change
Shelf Life Active
Reagents
PH3-0.2–10PPM Low Level Extended 0.1 – 2.5 ppm 2 0.5 100 mL 1.5 minutes per stroke Yellow → Pink 2 years Mercuric Chloride
PH3-0.2–10PPM Standard 0.2 – 10 ppm 1 1.0 50 mL 1.5 minutes per stroke Yellow → Pink 2 years Mercuric Chloride
PH3-50–1000PPM Low Level Extended 25 – 500 ppm 2 0.5 200 mL 1 minute per stroke Yellow → Dark Purple 3 years Gold
PH3-50–1000PPM Standard 50 – 1000 ppm 1 1.0 100 mL 1 minute per stroke Yellow → Dark Purple 3 years Gold
PH3-50–1000PPM High Level Extended 100 – 2000 ppm 0.5 2.0 50 mL 1 minute per stroke Yellow → Dark Purple 3 years Gold

*Multiply the observed reading by the correction factor (CFV * CFT) to obtain the true concentration.