NAGCO Sulfur Dioxide (SO2) Detector Tubes 2-30 ppm | N10-107-15

The NAGCO N10-107-15 Sulfur Dioxide (SO2) Detector Tubes provide direct-reading measurement of sulfur dioxide using a manual gas sampling pump. The standard measurement range is 2–30 ppm SO2 using two pump strokes with a total sample volume of 200 mL.

For applications requiring measurements outside the standard range, the N10-107-15 can also measure 1–15 ppm using four pump strokes or 4–60 ppm using one pump stroke with the appropriate correction factor.

Key Features

• Designed for sulfur dioxide (SO2) measurement
• Standard measurement range: 2–30 ppm
• Extended measurement ranges: 1–15 ppm and 4–60 ppm
• Direct-reading colorimetric detector tube
• Standard measurement uses 2 pump strokes / 200 mL total sample volume
• Approximately 2 minutes per pump stroke at standard range
• No humidity effect from 5–90% RH under specified conditions
• Blue to yellow color change
• Precision: ≤ ±12% Relative Standard Deviation
• 2-year storage life under specified storage conditions
• No electrical power required

Specifications

• Manufacturer: NAGCO
• Part Number: N10-107-15
• Target Gas: Sulfur Dioxide (SO2)
• Standard Range: 2–30 ppm
• Extended Ranges: 1–15 ppm / 4–60 ppm
• Standard Pump Strokes: 2
• Standard Sample Volume: 200 mL
• Standard Sample Time: 2 × 2 minutes
• Standard Correction Factor: 1.0
• Precision: ≤ ±12% Relative Standard Deviation
• Linearity: r² = 0.991
• Humidity: No effect from 5–90% RH
• Temperature Range: 0–40°C (32–104°F); correction factors apply
• Color Change: Blue → Yellow
• Storage Life: 2 years in darkness at 5–25°C (40–77°F); refrigeration preferred

Measurement Ranges

• 1–15 ppm: 4 pump strokes / 400 mL / 4 × 2 minute sample time / correction factor 0.5
• 2–30 ppm: 2 pump strokes / 200 mL / 2 × 2 minute sample time / correction factor 1.0
• 4–60 ppm: 1 pump stroke / 100 mL / 2 minute sample time / correction factor 2.0

Temperature Correction

• 0°C (32°F): Correction factor 1.1
• 10°C (50°F): Correction factor 1.1
• 24°C (75°F): Correction factor 1.0
• 40°C (104°F): Correction factor 1.1

Cross-Sensitivity & Interferences

NAGCO documents cross-sensitivity testing with carbon monoxide, carbon dioxide, nitric oxide, ammonia, hydrogen sulfide, phosphine, hydrogen fluoride, methane, hexane and toluene. At the specified test concentrations, ammonia, hydrogen sulfide and hydrogen fluoride produced apparent readings. NAGCO also notes that ammonia may reduce the reading when present in a mixture and identifies acid gases as other possible interferences. 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 N10-107-15 Sulfur Dioxide Detector Tube Datasheet (PDF)