Description
The Draeger 8101231 is the Benzene 2/a detector tube, measuring range 2 to 60 ppm, 20 pump strokes, measuring time approx. 8 min (handbook, p. 134). Sold by the box of 5, 5 single-use tubes. Read on a Draeger accuro or X-act 5000 tube pump. Ships in 1–2 business days; most orders arrive in 3–7 business days. All Draeger tubes for Benzene.
Draeger 8101231 specifications
| Item | Draeger data |
|---|---|
| Part number | 8101231 |
| Gas or substance | Benzene |
| Tube type | 2/a |
| Measuring range | 2 to 60 ppm |
| Number of strokes (n) | 20 |
| Measuring time | approx. 8 min |
| Standard deviation | ± 10 to 15 % |
| Color change | white → brown-gray |
| Temperature | 0 to 40 °C |
| Humidity | 1 to 15 mg H2O/L |
| Reaction principle | C6H6 + I2O5 + H2SO4 → I2 |
| Pack | Box of 5 |
| Pump | Read on a Draeger accuro or X-act 5000 tube pump |
Source: Dräger-Tubes & MicroTubes Handbook, 22nd edition (order no. 90 92 086), p. 134, Dräger Safety AG & Co. KGaA.
Cross-sensitivity (handbook, p. 134): Alkylbenzenes such as toluene or xylenes do not interfere up to concentrations of 200 ppm. It is impossible to measure benzene in the presence of gasoline hydrocarbons and carbon monoxide.
Benzene exposure limits
| Limit | Value |
|---|---|
| OSHA PEL | [1910.1028] TWA 1 ppm ST 5 ppm |
| NIOSH REL | Ca TWA 0.1 ppm ST 1 ppm |
| NIOSH IDLH | Ca [500 ppm] |
| CAS number | 71-43-2 |
| Formula | C₆H₆ |
| Conversion | 1 ppm = 3.19 mg/m³ |
Source: NIOSH Pocket Guide to Chemical Hazards, Benzene (OSHA PEL from 29 CFR 1910.1000 Table Z as listed there). TWA = 8-hour time-weighted average, ST = short-term (15-minute), C = ceiling, Ca = NIOSH potential occupational carcinogen.
Other Draeger tubes for Benzene
| Part number | Tube | Measuring range | Pack |
|---|---|---|---|
| 8103511 | Draeger 8103511 PID Pre-Filter Tubes for Benzene, Box of 10 | Pre-filter tube that lets a PID read benzene selectively (not a measuring tube) | Box of 10 |
| 8103691 | Draeger Benzene 0.25/a Detector Tubes, Box of 10 | 0.25 to 2 ppm / 2 to 10 ppm | Box of 10 |
| 8101741 | Draeger Benzene 15/a Detector Tubes, Box of 10 | 15 to 420 ppm | Box of 10 |
| 6718801 | Draeger Benzene 5/a Detector Tubes, Box of 10 | 5 to 40 ppm | Box of 10 |
| 6728071 | Draeger Benzene 5/b Detector Tubes, Box of 10 | 5 to 50 ppm | Box of 10 |
Every Draeger tube for this gas, with live prices: Benzene detector tubes.
Draeger 8101231 questions
What does the Draeger 8101231 measure? Benzene in air, measuring range 2 to 60 ppm.
How many pump strokes does the 8101231 take? 20 strokes (n) per the handbook, p. 134. Measuring time approx. 8 min.
Which pump does the 8101231 use? A Draeger tube pump: the accuro hand pump or the X-act 5000. Per the handbook (p. 28–29), Draeger short-term tubes and Draeger tube pumps are matched at the factory and form a single unit; using other pumps with Draeger tubes, or other tubes with Draeger pumps, can impair the measurement.
What is the color change on the 8101231? white → brown-gray, read against the scale printed on the tube.
Do Draeger 8101231 tubes expire? Yes. Draeger prints an expiration date (month and year) on the package; the handbook states a typical shelf life for the customer of up to two years, stored sealed at the temperature on the package strip (handbook section 2.13).
How many tubes are in a box of 8101231? 5. Each tube is used once.
Guides: what Draeger tubes measure · pump strokes and measuring time · how to read a tube · expiration and storage · cross-sensitivity · all tubes by gas and range.
