Water Vapor (H2O) Gas Detector Tubes | Standard Range: 0.05-1mg/L | N10-120-30

NAGCO Water Vapor (Metric) H₂O detector tubes are designed for measuring water vapor concentrations using NAGCO pumps and tubes. The tubes provide three measurement ranges for flexibility across different moisture concentrations.

Specifications:

• Standard Range: 1–18 mg/L
• Extended Range: 0.5–4 mg/L
• Extended Range: 2–32 mg/L
• Number of Pump Strokes (Standard Range): 1
• Sample Volume (Standard Range): 100 mL
• Sample Time (Standard Range): 1.5 minutes
• Correction Factor (Standard Range): 1
• Precision (Relative Standard Deviation): ≤ ±20%
• Linearity with Number of Pump Strokes: r² = 0.959
• Temperature Range: Refer to Figures 1 and 2; accurate temperature measurement required
• Storage Life: 1 year in darkness at 5–25°C (40–77°F); refrigeration preferred
• Color Change: Yellow-green → Purple
• Part Number: N10-120-30

The tube uses a chemical reaction between water vapor and magnesium perchlorate to produce the color change used for measurement. Temperature can affect the measurement, so accurate temperature measurement is required when using the tube.

Cross-Sensitivity: The datasheet reports no apparent reading from methane, carbon dioxide, carbon monoxide, hydrogen sulfide, sulfur dioxide, hydrogen chloride, nitrogen dioxide, or phosphine under the listed test conditions. Ammonia, acetone, and ethanol can produce readings and should be considered when interpreting measurements.

Datasheet