Amines (NH3) Detector Tubes | Standard Range: 0.5-10ppm | N10-132-10

NAGCO Amines RNH₂ (CH₃NH₂) detector tubes are designed for measuring amine concentrations using NAGCO pumps and tubes. The tubes are calibrated using methylamine and provide reliable measurement across standard and extended concentration ranges.

Specifications:

• Standard Range: 0.5–10 ppmv
• Extended Range: 0.25–5 ppmv
• Extended Range: 1.0–20 ppmv
• Pump Strokes: 2 / 1 / 0.5
• Sample Volume: 200 / 100 / 50 mL
• Sample Time: 2 × 1 / 1 / 1 minute
• Correction Factor: 0.5 / 1.0 / 2.0
• Precision (Relative Standard Deviation): ≤ ±20%
• Linearity with Number of Pump Strokes: r² = 0.997
• Humidity: No effect, 0–90% RH
• Temperature Range: 0–40°C (32–104°F) at constant 50% RH
• Temperature Correction Factors: 1.16 at 0°C, 1.10 at 10°C, 1.0 at 20°C, 0.96 at 30°C, and 0.96 at 40°C
• Storage Life: 1 year in darkness at 5–25°C (40–77°F); refrigeration preferred
• Color Change: Pink → Yellow

Reaction Principle:
Amines react with sulfuric acid in the detector tube to form an ammonium sulfate compound. The resulting color change from pink to yellow provides the visual indication used to determine the concentration.

Cross-Sensitivity:
The tube may respond to other amines and basic compounds. The datasheet identifies measurable responses from ammonia, ethylamine, allylamine, diethylamine, trimethylamine, triethylamine, methylaziridine (propylene imine), ethylenediamine, ethanolamine, and pyridine. Hydrogen sulfide, carbon monoxide, and isobutylene showed no response under the tested conditions. HCl interferes when present in mixtures.

Other Possible Interferences:
Other basic compounds may interfere with measurement.

Datasheet