Tube - Styrene 10/a (10) | Draeger

The Dräger Tube – Styrene 10/a (Order No. 6723301) is part of the short-term gas detection tube family by Dräger. These are glass detection tubes charged with a reagent that reacts to the target vapour (in this case, styrene). Air is drawn through the tube using a compatible pump (e.g., Dräger Accuro) and if styrene is present, the reagent changes colour. The length of the colour change corresponds to concentration.

Typical usage: Spot monitoring of styrene vapour in the workplace – for instance in plastics, resins, coatings operations — where quick short-term checks are needed.

Key Features & Advantages

• Rapid onsite detection: The tube offers a direct reading of styrene vapour concentration without requiring full laboratory instrumentation.

• Compact and easy to use: With the pump system, the measurement can be carried out in the field, in confined spaces or production areas.

• Clear measurement range: For this model, the standard measuring range is 10 – 200 ppm.

• Well-supported system: The “Short-term Tubes” line from Dräger is widely used and documented, with many gases/vapours covered.

Technical Specifications

• Order number: 6723301.

• Measuring range: 10 to 200 ppm (Styrene 10/a) under standard conditions (20 °C, 1013 hPa) according to the product catalogue.

• Measurement time: Up to ~3 minutes for this tube.

• Number of strokes (pump pulls): Maximum approx. 15 strokes for sampling.

• Ambient operating conditions: Approx. temperature range 15-40 °C and absolute humidity < 15 mg H₂O/L for accurate reading.

• Colour change: The reagent changes from white to pale yellow when styrene is present.

• Packaging: Box of 10 tubes (10 tests per box) for this variant.

• Shelf life: As with many Dräger tubes, typical storage stability is around 2 years (subject to manufacturer’s storage instructions).

Application & Use-Case

• Ideal for workplace exposure monitoring of styrene vapours: e.g., checking short-term peaks in inhalation zones.

• Useful for leak detection or spot checks in production facilities dealing with styrene or styrene-based resins.

• Works well for confined space air testing, maintenance checks, or periodic safety audits.

• Because it’s a short-term tube, it’s suited for immediate/spot readings rather than long-term continuous monitoring.

Limitations & Important Notes

• Range limitation: This tube has a measuring range of ~10-200 ppm. If concentrations are expected to be much lower than 10 ppm or much higher than 200 ppm, a different tube variant (e.g., a “50/a” or “10/b” version) may be required.

• Cross-sensitivity/Interferences: Other organic compounds, especially those which tend to polymerise (e.g., butadiene) may affect the reading. According to one spec sheet: “Other organic compounds which tend toward polymerization … are indicated, but with different sensitivities. It is impossible to measure monostyrene in the presence of these compounds.”

• Pump compatibility: Must be used with a compatible Dräger pump designed for Dräger tubes to ensure correct sample volume (100 mL strokes typically) and calibration. Using an incompatible pump may yield inaccurate results.

• Reading accuracy: The colour-change length must be read immediately after measurement and under proper lighting. Delay or improper lighting may reduce accuracy.

• Handling/Storage: These tubes are glass: care required to avoid breakage. They must be stored sealed, protected from extremes of temperature/humidity, and used before the expiration date.

• Not for continuous monitoring: This is a spot-check tool (‘short term’ tube), not meant for continuous long-duration monitoring of styrene concentrations.