Tube - Chloroform 2/a (5) | Draeger

The Dräger Tube Chloroform 2/a is a short-term gas detection tube designed to measure the presence of chloroform vapour in air. It is part of the renowned Dräger “Short-Term Tubes” range, widely used in occupational hygiene, environmental monitoring, and industrial safety applications.

In simple terms: you connect the tube to a compatible gas-sampling pump (e.g., Dräger Accuro), draw a calibrated volume of air, and the reagent inside changes colour when chloroform is present. The length of the colour change corresponds to the concentration of chloroform.

Key Features & Benefits

• Specific for chloroform (CHCl₃): The tube is calibrated for chloroform vapour measurement in the range of approximately 2 to 10 ppm.

• Ready-to-use glass tube: The chemical reagent is pre-impregnated in the tube, so no calibration of the tube itself is required. Simplifies deployment in the field.

• Fast measurement: As part of Dräger’s short-term tube series, it provides quick results (typically minutes) rather than hours or days.

• Portable, reliable: Useful for spot checks (concentration peaks), leakage detection, ambient air measurement in confined spaces (shafts, tanks, sewers) and inhalation area monitoring.

• Pack of 5: The descriptor “…(5)” in the product listing suggests this variant supplies five tubes (i.e., five tests). Some distributors list packs of 10, but your specific reference indicates five.

Technical Specifications

• Target gas / vapour: Chloroform (CHCl₃)
• Measurement range: Approx. 2 to 10 ppm for chloroform.
• Tube type / number: 2/a (refers to sensitivity class)
• Pack size: Typically five tubes in this variant; other pack sizes may exist.
• Compatible pump: Works with Dräger’s manual bellows pump (Accuro) or automatic pumps (e.g., Quantimeter 1000) for short-term tubes.

Usage & Application Notes

• Installation: Insert the tube into the sampling pump. Break the ends of the tube as per instructions. Draw the air sample according to the pump’s stroke indicator (follow the instructions specific to the tube – e.g., number of strokes, volume per stroke).

• Reading: After sampling, the reagent inside the tube will show a coloured band or zone. Read the concentration directly from the printed scale on the tube.

• When to use: Especially useful for spot checks of chloroform vapour in work areas, leak detection around chemical storage or processing equipment, confined space entry checks, and monitoring inhalation hazard levels.

• Precautions:

  • Ensure correct orientation (arrow direction) and proper number of pump strokes.

  • Use within specified temperature/humidity conditions (e.g., for this tube ~10 °C to 30 °C and ~9 mg/L humidity is noted in distributor specs)

  • Interpret readings promptly after sampling; reagent reaction is immediate but may degrade after time.

• Storage: Store tubes sealed, protected from moisture, extreme temperature, and direct sunlight. Check expiry date before use.

• Limitations:

  • Only suitable for the stated range (2-10 ppm) — outside this range may require a different tube sensitivity.

Typical Applications

• Industrial hygiene in chemical production facilities where chloroform is used or generated.

• Environmental monitoring in labs, storage areas, or disposal sites handling chlorinated hydrocarbons.

• Safety inspections in confined or poorly ventilated spaces to detect unexpected chloroform vapour concentration peaks.

• Leak detection around processing units or storage containers where chloroform may escape.

• Cross-interference from other chemicals may affect accuracy; ensure the environment is suitable and interference is evaluated.

• Single-use: once air has passed, the tube is consumed and cannot be reused.