Hydrogen Sulfide (H2S) Specification Summary

TVA (TLV): 1 ppm

STEL (TLV): 5 ppm

Flammable Range: 4–44%

Part Number Range Class Measurement
Range
No. of
Strokes
CFV* Volume Sampling
Time
Color
Change
Shelf Life Active
Reagents
H2S-0.1–2.0% Low Level Extended 0.05 – 1.0% 2 0.5 200 mL 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.1–2.0% Standard 0.1 – 2.0% 1 1.0 100 mL 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.1–2.0% High Level Extended 0.2 – 4.0% 0.5 2.0 50 mL 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.2–7.0% Low Level Extended 0.1 – 3.5% 2 0.5 200 mL 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.2–7.0% Standard 0.2 – 7.0% 1 1.0 100 mL 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.2–7.0% High Level Extended 0.4 – 14% 0.5 2.0 50 mL 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.5–4.0% Low Level Extended 0.25 – 2.0% 2 0.5 200 mL 1.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.5–4.0% Standard 0.5 – 4.0% 1 1.0 100 mL 1.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.5–4.0% High Level Extended 1.0 – 8.0% 0.5 2.0 50 mL 1.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-0.5–10.0% Low Level Extended 0.25 – 5.0% 2 0.5 100 mL 6 minutes per stroke Light Blue → Black 2 years Copper Sulfate
H2S-0.5–10.0% Standard 0.5 – 10% 1 1.0 50 mL 6 minutes per stroke Light Blue → Black 2 years Copper Sulfate
H2S-2–40% Low Level Extended 1 – 20% 1 0.5 100 mL 6 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-2–40% Standard 2 – 40% 0.5 1.0 50 mL 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-2–40% High Level Extended -donotextend- -- -- -- 2.5 minutes per stroke Light Blue → Dark Brown 3 years Copper Sulfate
H2S-1–30PPM Low Level Extended 0.5 – 15 ppm 4 0.5 400 mL 1.5 minutes per stroke White → Light Brown 3 years Lead Acetate
H2S-1–30PPM Standard 1 – 30 ppm 2 1.0 200 mL 1.5 minutes per stroke White → Light Brown 3 years Lead Acetate
H2S-1–30PPM High Level Extended 2 – 60 ppm 1 2.0 100 mL 1.5 minutes per stroke White → Light Brown 3 years Lead Acetate
H2S-2.5–60PPM Low Level Extended 1.25 – 30 ppm 2 0.5 200 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-2.5–60PPM Standard 2.5 – 60 ppm 1 1.0 100 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-2.5–60PPM High Level Extended 5 – 120 ppm 0.5 2.0 50 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-5–100PPM Low Level Extended 2.5 – 50 ppm 2 0.5 200 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-5–100PPM Standard 5 – 100 ppm 1 1.0 100 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-5–100PPM High Level Extended 10 – 200 ppm 0.5 2.0 50 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-10–250PPM Low Level Extended 5 – 125 ppm 2 0.5 200 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-10–250PPM Standard 10 – 250 ppm 1 1.0 100 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-10–250PPM High Level Extended 20 – 500 ppm 0.5 2.0 50 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-50–800PPM Low Level Extended 25 – 400 ppm 2 0.5 200 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-50–800PPM Standard 50 – 800 ppm 1 1.0 100 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate
H2S-50–800PPM High Level Extended 100 – 1600 ppm 0.5 2.0 50 mL 1.5 minutes per stroke White → Brown 3 years Lead Acetate

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