The Gastec 102TP Hexane Detector Tubes are designed for measurement of hexane (CH3(CH2)4CH3) in air using a compatible automatic air sampling pump.

The 102TP provides a quantitative measuring range of 2 to 80 ppm, with a detection limit of 0.5 ppm under the specified sampling conditions. The tube produces a yellowish-brown-to-greenish-brown color change for visual determination of hexane concentration.

Each box contains 10 detector tubes for 10 tests.

Automatic Air Sampling Pump Required

IMPORTANT: Gastec 102TP Hexane Detector Tubes require a compatible automatic air sampling pump capable of maintaining the specified continuous sampling rate.

Compatible Pump: Gastec GSP-501FT Automatic Air Sampling Pump

The 102TP is an automatic air sampling pump detector tube and should not be treated as a standard hand-pump detector tube.

Accurate measurement requires drawing 1,000 mL of air through the detector tube at 100 mL/min for 10 minutes.

Do not substitute a standard manual Gastec detector tube pump for the required automatic sampling method.

Measurement & Sampling Specifications

Measurement Range	Sampling Rate	Sample Volume	Correction Factor	Sampling Time
2–80 ppm	100 mL/min	1,000 mL	1	10 Minutes

The Gastec 102TP requires a continuous sampling rate of 100 mL/min for 10 minutes, providing a total sample volume of 1,000 mL.

The correction factor is 1, allowing the concentration to be read directly from the detector tube scale when used under the specified sampling conditions.

Product Specifications

Brand: Gastec
Tube Type: Hexane Detector Tube for Automatic Air Sampling Pump
Part Number: 102TP
Gas Measured: Hexane
Chemical Formula: CH3(CH2)4CH3
Measurement Range: 2–80 ppm
Detection Limit: 0.5 ppm at 1,000 mL (minimum detectable concentration; not part of the quantitative measuring range)
Sampling Rate: 100 mL/min
Sample Volume: 1,000 mL
Correction Factor: 1
Sampling Time: 10 Minutes
Color Change: Yellowish Brown → Greenish Brown
Operating Temperature: 0–40°C (32–104°F), temperature correction not required
Operating Humidity: 0–90% RH, humidity correction not required
Relative Standard Deviation: 10% for 2–20 ppm; 5% for 20–80 ppm
Quantity: 10 Tubes
Tests per Box: 10 Tests
Shelf Life: 36 Months
Pump Requirement: Compatible Automatic Air Sampling Pump Required

Hexane Measurement

The Gastec 102TP provides quantitative measurement of hexane concentrations from 2 to 80 ppm under the specified sampling conditions.

The 0.5 ppm detection limit represents the minimum concentration capable of producing a detectable reaction at the specified 1,000 mL sample volume. It is not part of the quantitative measuring range and should not be interpreted as a 0.5–80 ppm measuring range.

During sampling, hexane reacts with the detector tube reagent, producing a visible yellowish-brown-to-greenish-brown color change.

Common Applications

Gastec 102TP Hexane Detector Tubes may be used for applicable hexane air-monitoring applications including:

• Industrial Hygiene & Occupational Exposure Monitoring

• Solvent Use & Handling Areas

• Chemical Manufacturing & Processing

• Adhesive & Coating Operations

• Printing & Manufacturing Facilities

• Industrial Process Air Monitoring

• Leak & Release Investigations

• Laboratory & Research Applications

• Environmental Atmospheric Monitoring

• Workplace Hexane Monitoring

Operating Conditions

The Gastec 102TP can be used from 0 to 40°C (32 to 104°F) without temperature correction.

The specified operating humidity range is 0 to 90% relative humidity, and humidity correction is not required.

Always follow Gastec's official instructions regarding atmospheric pressure and any other environmental factors that may affect measurement accuracy.

Possible Interferences

Certain coexisting substances may positively interfere with Gastec 102TP measurements or independently produce a greenish-brown color.

Sulfur Dioxide: Concentrations of 10 ppm or greater may produce positive interference and a greenish-brown color.

Hydrogen Sulfide: Concentrations of 10 ppm or greater may produce positive interference and a greenish-brown color.

Acetylene: May produce positive interference and a greenish-brown color.

Alcohols: Gastec identifies no interference and no independent color change under the manufacturer's specified test conditions.

Esters and Ketones: Concentrations of 110 ppm or greater may produce positive interference and a greenish-brown color.

Organic Solvents (C3 or Higher): May produce positive interference and a greenish-brown color.

Aromatic Hydrocarbons: Concentrations of 35 ppm or greater may produce positive interference and a greenish-brown color.

Coexisting gases and vapors should always be considered when interpreting detector tube measurements.

Important

A compatible automatic air sampling pump is required for correct use of the Gastec 102TP Hexane Detector Tubes.

Accurate measurement requires sampling at 100 mL/min for 10 minutes, producing a total sample volume of 1,000 mL.

Do not use a standard manual detector tube pump in place of the required automatic sampling method.

Always follow Gastec's official instructions for sampling rate, sample volume, sampling time, operating conditions, interference information, atmospheric pressure correction when applicable, and interpretation of results.

Compatible Pump: Gastec GSP-501FT Automatic Air Sampling Pump

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