Description
Tube Phosgene 0.02/a (10) is a single-use colorimetric detector tube designed for rapid on‑site measurement of phosgene (COCl₂) in air. Each tube contains a proprietary reagent that produces a clearly visible colour change proportional to airborne phosgene concentration when used with a compatible hand pump or diffusion sampler. Tubes are supplied in a pack of ten and are intended for field checks, industrial hygiene surveys, emergency response, and confined‑space safety monitoring where quick, portable detection is required.
Key features
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Pack size: 10 tubes per pack
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Detection principle: colorimetric reagent (visual reading of stain length or comparison with a scale)
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Typical lower detection sensitivity: ~0.02 ppm (suitable for low‑level detection; see specifications below)
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Quick response — typically one measurement in under 1–2 minutes when used with a hand pump (actual sampling time dependent on pump and stroke count)
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No power required — handheld, portable, disposable
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Clear, high‑contrast colour change for easy reading in the field
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Individually sealed tubes to preserve shelf life
Typical specifications (representative — confirm with supplier)
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Measurement range: 0.02 to 2.0 ppm (examples; some tube variants cover different upper ranges)
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Accuracy: ±15–25% of reading under recommended sampling conditions
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Cross‑sensitivity: possible interference from other reactive chlorine‑containing or oxidizing gases — consult supplier interference chart
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Operating temperature: 0–40 °C (verify with manufacturer)
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Shelf life: 12–24 months when stored sealed at recommended conditions (cool, dry, away from sunlight)
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Tube dimensions: approx. 60–100 mm length, 6–8 mm diameter (varies by manufacturer)
Note: The above numerical specs are typical for colorimetric phosgene detector tubes. Please confirm exact values, lot‑specific expiry and interference data with the product datasheet or supplier before use.
Intended uses
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Rapid screening for phosgene leaks in industrial plants (chemical manufacture, fumigation processes, chlorinated solvent operations)
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Emergency response and leak assessment by HAZMAT teams
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Personal or area monitoring as part of industrial hygiene surveys (short‑term checks)
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Confined space entry pre‑checks (as one line of evidence; not a substitute for full gas‑monitoring programs)
Safety & precautions
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Phosgene is an extremely toxic pulmonary irritant. These tubes detect phosgene only — do not rely solely on tubes for full personal protection decisions when high concentrations or unknown situations are present.
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Use appropriate personal protective equipment (PPE): respirator/SCBA, chemical‑resistant gloves, eye protection, and protective clothing as required by the hazard assessment.
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Handle tubes carefully to avoid breakage and accidental exposure to tube reagents.
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Do not attempt to open or reuse tubes. Used/broken tubes should be treated as chemical waste.
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Keep away from incompatible materials and store in a cool, dry, dark place per supplier instructions.
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Consult the product Safety Data Sheet (SDS/MSDS) for reagent hazards, first‑aid, and spill response procedures.
Limitations
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Colorimetric tubes give semi‑quantitative results and can be affected by humidity, temperature, sampling technique, and interfering gases.
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Not intended to replace continuous monitoring where continuous real‑time data and alarms are required.
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For regulatory compliance or definitive exposure assessment, follow up with calibrated instrumental methods (e.g., FTIR, GC with appropriate sampling) as required by your local regulations.
Packaging & storage
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Pack: 10 tubes in a sealed blister or foil pouch (depending on manufacturer)
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Storage: sealed, in original packaging; recommended storage temperature and maximum shelf life printed on each pack/label
Regulatory & documentation
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Each pack should be supplied with: lot number, expiry date, instructions for use, and a product datasheet/SDS. Verify compatibility with local occupational exposure limits (OELs) and regulatory requirements before use.