Description
The Draeger 6728241 is the Ethylene oxide 25/a detector tube, measuring range 25 to 500 ppm, 30 pump strokes, measuring time approx. 6 min (handbook, p. 178). Sold by the box of 10, 10 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 Ethylene oxide.
Draeger 6728241 specifications
| Item | Draeger data |
|---|---|
| Part number | 6728241 |
| Gas or substance | Ethylene oxide |
| Tube type | 25/a |
| Measuring range | 25 to 500 ppm |
| Number of strokes (n) | 30 |
| Measuring time | approx. 6 min |
| Standard deviation | ± 20 to 30 % |
| Color change | light yellow → turquoise green |
| Temperature | 15 to 30 °C |
| Humidity | 3 to 15 mg H2O/L |
| Reaction principle | Ethylene oxide + CrVI → CrIII + var. oxidation products |
| Pack | Box of 10 |
| 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. 178, Dräger Safety AG & Co. KGaA.
Cross-sensitivity (handbook, p. 178): Alcohols, esters, and aldehydes are also indicated, but with different sensitivities. Differentiation is not possible. Propylene oxide is also indicated, but with a different sensitivity. Ethylene, ketones, and toluene do not have any effect within their OEL ranges.
Ethylene oxide exposure limits
| Limit | Value |
|---|---|
| OSHA PEL | [1910.1047] TWA 1 ppm 5 ppm [15-minute Excursion] |
| NIOSH REL | Ca TWA <0.1 ppm (0.18 mg/m³) C 5 ppm (9 mg/m³) [10-min/day] |
| NIOSH IDLH | Ca [800 ppm] |
| CAS number | 75-21-8 |
| Formula | C₂H₄O |
| Conversion | 1 ppm = 1.80 mg/m³ |
Source: NIOSH Pocket Guide to Chemical Hazards, Ethylene oxide (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 Ethylene oxide
| Part number | Tube | Measuring range | Pack |
|---|---|---|---|
| 6728961 | Draeger Ethylene Oxide 1/a Detector Tubes, Box of 5 | 1 to 15 ppm | Box of 5 |
Every Draeger tube for this gas, with live prices: Ethylene oxide detector tubes.
Draeger 6728241 questions
What does the Draeger 6728241 measure? Ethylene oxide in air, measuring range 25 to 500 ppm.
How many pump strokes does the 6728241 take? 30 strokes (n) per the handbook, p. 178. Measuring time approx. 6 min.
Which pump does the 6728241 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 6728241? light yellow → turquoise green, read against the scale printed on the tube.
Do Draeger 6728241 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 6728241? 10. 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.
