NAGCO Hydrogen Sulfide (H2S) Detector Tubes 1-30 ppm | N-10-103-13

The NAGCO N-10-103-13 Hydrogen Sulfide (H2S) Detector Tubes provide direct-reading measurement of hydrogen sulfide using a manual gas sampling pump. The standard measurement range is 1–30 ppm H2S using two pump strokes and a total sample volume of 200 mL.

For applications requiring measurements outside the standard range, the N-10-103-13 can also measure 0.5–1 ppm using four pump strokes or 2–60 ppm using one pump stroke with the appropriate correction factor.

Key Features

• Designed for hydrogen sulfide (H2S) measurement
• Standard measurement range: 1–30 ppm
• Extended measurement ranges: 0.5–1 ppm and 2–60 ppm
• Direct-reading colorimetric detector tube
• Standard measurement uses 2 pump strokes / 200 mL total sample volume
• Standard sample time: 3 minutes
• Precision: ≤ ±12% Relative Standard Deviation
• No humidity effect from 5–85% RH
• Temperature range: 0–40°C (32–104°F)
• White to light brown color change
• 2-year storage life under specified storage conditions
• No electrical power required

Specifications

• Manufacturer: NAGCO
• Part Number: N-10-103-13
• Target Gas: Hydrogen Sulfide (H2S)
• Standard Range: 1–30 ppm
• Extended Ranges: 0.5–1 ppm / 2–60 ppm
• Standard Pump Strokes: 2
• Standard Sample Volume: 200 mL
• Standard Sample Time: 3 minutes
• Standard Correction Factor: 1.0
• Precision: ≤ ±12% Relative Standard Deviation
• Linearity: r² = 0.998
• Humidity: No effect from 5–85% RH
• Temperature Range: 0–40°C (32–104°F); correction factors apply
• Color Change: White → Light Brown
• Storage Life: 2 years in darkness at 5–25°C (40–77°F); refrigeration preferred

Measurement Ranges

• 0.5–1 ppm: 4 pump strokes / 400 mL / 6 minute sample time / correction factor 0.5
• 1–30 ppm: 2 pump strokes / 200 mL / 3 minute sample time / correction factor 1.0
• 2–60 ppm: 1 pump stroke / 100 mL / 2 minute sample time / correction factor 2.0

Temperature Correction

• 0°C (32°F): Correction factor 0.95
• 10°C (50°F): Correction factor 0.95
• 25°C (77°F): Correction factor 1.0
• 40°C (104°F): Correction factor 1.2

Cross-Sensitivity & Interferences

NAGCO documents cross-sensitivity testing with hydrogen, carbon monoxide, methane, ammonia, nitrogen dioxide, sulfur dioxide, carbon disulfide, methyl mercaptan, diethyl sulfide, hexane, isobutylene and toluene. Under the specified individual test conditions, these substances produced no apparent H2S reading. However, NAGCO notes that nitrogen dioxide can interfere in mixtures and may produce a transient light-brown H2S response. High sulfur dioxide concentrations can also interfere in mixtures and suppress the H2S response. Refer to the NAGCO datasheet for complete test concentrations and interference information.

Pump Information

NAGCO recommends using NAGCO detector tubes with NAGCO sampling pumps. CPS Calibrations can assist customers transitioning from another detector tube system with selecting the appropriate NAGCO tube and sampling equipment for their application.

Important: Detector tube readings may be affected by temperature and interfering compounds present in mixtures. Always apply the appropriate correction factors and follow the NAGCO datasheet and pump operating instructions for the measurement being performed.

View NAGCO N-10-103-13 Hydrogen Sulfide Detector Tube Datasheet (PDF)