Hydrogen Sulfide (H2S) Detector Tubes | Standard Range: 0.2-3ppm | N10-103-05 PreTube

NAGCO Hydrogen Sulfide (H₂S) detector tubes are designed for measuring low concentrations of hydrogen sulfide using NAGCO pumps and tubes. The tubes provide three measurement ranges for flexibility across different H₂S concentrations.

Specifications:

• Standard Range: 0.2–3 ppmv
• Extended Range: 0.1–1.5 ppmv
• Extended Range: 0.4–6 ppmv
• Number of Pump Strokes (Standard Range): 1
• Sample Volume (Standard Range): 100 mL
• Sample Time (Standard Range): 2 minutes
• Correction Factor (Standard Range): 1
• Precision (Relative Standard Deviation): ≤ ±12%
• Linearity with Number of Pump Strokes: r² = 0.999
• Humidity: No effect between 5–90% RH
• Temperature Range: No effect between 0–40°C (32–104°F)
• Storage Life: 1 year in darkness at 5–25°C (40–77°F); refrigeration preferred
• Color Change: Pale orange → Pink
• Part Number: N10-103-05

The tube uses a pre-tube to eliminate humidity before the sample reaches the detection tube. The detection reaction between hydrogen sulfide and mercuric chloride produces a color change from pale orange to pink. The standard range uses 1 pump stroke with a 100 mL sample volume and a 2-minute sampling time.

Cross-Sensitivity: The datasheet reports no apparent response from ammonia, nitrogen dioxide, sulfur dioxide, carbon disulfide, carbon monoxide, hexane, or toluene under the listed test conditions. Methyl mercaptan and butyl mercaptan can interfere at higher concentrations. Isobutylene can reduce the response when mixed with H₂S.

Important: Acids and bases may also interfere with measurements.

Datasheet