Description
The Draeger 6728961 is the Ethylene oxide 1/a detector tube, measuring range 1 to 15 ppm, 20 pump strokes, measuring time approx. 8 min (handbook, p. 177). 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 Ethylene oxide.
Draeger 6728961 specifications
| Item | Draeger data |
|---|---|
| Part number | 6728961 |
| Gas or substance | Ethylene oxide |
| Tube type | 1/a |
| Measuring range | 1 to 15 ppm |
| Number of strokes (n) | 20 |
| Measuring time | approx. 8 min |
| Standard deviation | ± 20 to 30 % |
| Color change | white → pink |
| Temperature | 10 to 30 °C |
| Humidity | 3 to 15 mg H2O/L |
| Reaction principle | a) Ethylene oxide → HCHO b) HCHO + C6H4(CH3)2 + H2SO4 → quinoid reaction products |
| 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. 177, Dräger Safety AG & Co. KGaA.
Cross-sensitivity (handbook, p. 177): An ethylene oxide measurement is not possible in the presence of formaldehyde and ethylene glycol, as both provide the same discoloration. Styrene, vinyl acetate, and acetaldehyde are also indicated with a yellow-brown color.
Note (handbook, p. 177): The reagent ampoule must be broken before measurement.
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 |
|---|---|---|---|
| 6728241 | Draeger Ethylene Oxide 25/a Detector Tubes, Box of 10 | 25 to 500 ppm | Box of 10 |
Every Draeger tube for this gas, with live prices: Ethylene oxide detector tubes.
Draeger 6728961 questions
What does the Draeger 6728961 measure? Ethylene oxide in air, measuring range 1 to 15 ppm.
How many pump strokes does the 6728961 take? 20 strokes (n) per the handbook, p. 177. Measuring time approx. 8 min.
Which pump does the 6728961 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 6728961? white → pink, read against the scale printed on the tube.
Do Draeger 6728961 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 6728961? 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.
