NAGCO Hydrogen Sulfide (H2S) Detector Tubes 100-2000 ppm | N10-103-30

The NAGCO N10-103-30 Hydrogen Sulfide (H2S) Detector Tubes provide direct-reading measurement of higher concentrations of hydrogen sulfide using a manual gas sampling pump. The standard measurement range is 100–2,000 ppm H2S using one 100 mL pump stroke with a sample time of approximately 2 minutes.

For applications requiring measurements outside the standard range, the N10-103-30 can also measure 50–1,000 ppm using two pump strokes or 200–4,000 ppm using a half pump stroke with the appropriate correction factor.

Key Features

• Designed for higher-range hydrogen sulfide (H2S) measurement
• Standard measurement range: 100–2,000 ppm
• Extended measurement ranges: 50–1,000 ppm and 200–4,000 ppm
• Direct-reading colorimetric detector tube
• Standard measurement uses 1 pump stroke / 100 mL sample volume
• Approximately 2-minute sample time at standard range
• No humidity effect from 5–85% RH under specified conditions
• White to black color change
• Precision: ≤ ±10% Relative Standard Deviation
• 3-year storage life under specified storage conditions
• No electrical power required

Specifications

• Manufacturer: NAGCO
• Part Number: N10-103-30
• Target Gas: Hydrogen Sulfide (H2S)
• Standard Range: 100–2,000 ppm
• Extended Ranges: 50–1,000 ppm / 200–4,000 ppm
• Standard Pump Strokes: 1
• Standard Sample Volume: 100 mL
• Standard Sample Time: 2 minutes
• Standard Correction Factor: 1.0
• Precision: ≤ ±10% Relative Standard Deviation
• Linearity: r² = 0.999
• Humidity: No effect from 5–85% RH
• Temperature Range: 0–40°C (32–104°F); correction factors apply
• Color Change: White → Black
• Storage Life: 3 years in darkness at 5–25°C (40–77°F); refrigeration preferred

Measurement Ranges

• 50–1,000 ppm: 2 pump strokes / 200 mL / 2 × 2 minute sample time / correction factor 0.5
• 100–2,000 ppm: 1 pump stroke / 100 mL / 2 minute sample time / correction factor 1.0
• 200–4,000 ppm: 0.5 pump stroke / 50 mL / 1.5 minute sample time / correction factor 2.0

Temperature Correction

• 0°C (32°F): Correction factor 0.88
• 10°C (50°F): Correction factor 0.93
• 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 carbon monoxide, methane, ammonia, nitrogen dioxide, sulfur dioxide, carbon disulfide, hexane, isobutylene and toluene. The listed test concentrations produced no apparent reading; however, nitrogen dioxide can interfere when present in mixtures and may result in a transient brown H2S response. NAGCO also states that this tube showed no response to mercaptans and sulfides under the documented test conditions. Refer to the NAGCO datasheet for complete cross-sensitivity information and test conditions.

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, interfering compounds and application conditions. Always apply the appropriate correction factors and follow the NAGCO datasheet and pump operating instructions for the specific measurement being performed.

View NAGCO N10-103-30 Hydrogen Sulfide Detector Tube Datasheet (PDF)