Tube - Petrol Hydrocarbons 100/a (10) | Draeger

The Dräger Tube “Petrol Hydrocarbons 100/a”, article number 6730201, is a short-term detector tube designed for rapid, on-site measurement of petrol (i.e., petroleum) hydrocarbon vapours in the air. It is manufactured by Dräger, a well-known brand in gas detection and occupational safety equipment. The product is supplied in a box of 10 tubes.

Key Features & Benefits

• Measuring range: The tube is calibrated to detect petroleum hydrocarbon vapours in the range of approximately 100 to 2,500 ppm.

• Fast response time: Typical measurement time is about 30 seconds (for a defined sample volume).

• Simple, field-usable format: These are glass reagent tubes which change colour when exposed to the target vapour. The change in colour length correlates to concentration.

• Compatibility: Designed for use with Dräger’s manual or automatic pump systems (e.g., the Accuro® bellows pump, or automatic pumps such as the Accuro 2000).

  • For manual measurement: draw a defined volume (typically 100 mL) of sample air through the tube using the pump.

• Application versatility: Ideal for quick checks of vapour levels in industrial hygiene, leak detection, confined space entry, etc. Useful for measuring exposure peaks, determining leakages, and air monitoring in shafts, tanks, sewers.

Technical Specifications

• Target substance: Petrol / petroleum hydrocarbons (gas vapours)

• Model / Type: “100/a” variant

• Concentration range: ~100 ppm to ~2,500 ppm (for standard sampling) 

• Tube material: Glass, with break-off tip included.

• Number of strokes: For example, one spec sheet lists “2 strokes” for the measurement.

• Temperature range: Example data shows 0 °C to +40 °C (32 °F to 104 °F) for accurate measurement.

• Humidity tolerance: Under 30 mg/L water vapour (in one spec sheet).

• Package: Box of 10 tubes.

Typical Use Cases

• Monitoring petrol vapour concentrations in fuel storage or refuelling areas.

• Checking for hydrocarbon vapour leaks in industrial plants, refinery off-gases, tank farms.

• Measuring workplace exposure to petrol/hydrocarbon vapours in occupational hygiene contexts.

• Performing spot checks in confined spaces (e.g., tanks, tunnels) prior to entry to assess vapour presence.

• Quick field screening where portable, simple instrumentation is preferred, rather than full laboratory gas analyzers.

Advantages & Considerations

Advantages:

• Very rapid measurement (on-site, short-term).

• Easy to transport and deploy (no large instrumentation required).

• Visual read-out, simple to interpret in many cases.

• Broad measurement range suited for moderate to high vapour concentrations (100-2500 ppm).

Considerations / Limitations:

• Since it is a short-term detection tube, it is not suitable for continuous monitoring over long periods.

• The accuracy and interpretation depend on correct sample volume, pump calibration, correct ambient conditions (temperature/humidity).

• The specified measurement range (100-2500 ppm) means lower concentrations (below ~100 ppm) may not be reliably detected; for lower ranges a different tube variant may be required.

• Glass tube fragility; handling and storage must prevent breakage, ensure tube integrity and correct storage conditions.

• After sampling, the used tube is discarded (single-use) so ongoing costs and consumables need to be considered.

• Calibration and quality control: The user must ensure the pump is calibrated, strokes correct, etc, to ensure the reading is valid.