Description
The Draeger CH31001 is the Nitrous fumes 2/a detector tube, measuring range 5 to 100 ppm / 2 to 50 ppm, 5 / 10 pump strokes, measuring time approx. 1 min / approx. 2 min (handbook, p. 232). 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 Nitrous fumes.
Draeger CH31001 specifications
| Item | Draeger data |
|---|---|
| Part number | CH31001 |
| Gas or substance | Nitrous fumes |
| Tube type | 2/a |
| Measuring range | 5 to 100 ppm / 2 to 50 ppm |
| Number of strokes (n) | 5 / 10 |
| Measuring time | approx. 1 min / approx. 2 min |
| Standard deviation | ± 10 to 15 % |
| Color change | yellow → blue-gray |
| Temperature | 10 to 30 °C |
| Humidity | max. 30 mg H2O/L |
| Reaction principle | a) NO + CrVI → NO2 b) NO2 + diphenylbenzidine → blue-gray reaction product |
| 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. 232, Dräger Safety AG & Co. KGaA.
Cross-sensitivity (handbook, p. 232): Chlorine and ozone are also indicated, but with different sensitivities.
Nitrous fumes exposure limits
| Limit | Value |
|---|---|
| OSHA PEL | C 5 ppm (9 mg/m³) |
| NIOSH REL | ST 1 ppm (1.8 mg/m³) |
| NIOSH IDLH | 13 ppm |
| CAS number | 10102-44-0 |
| Formula | NO₂ |
| Conversion | 1 ppm = 1.88 mg/m³ |
Source: NIOSH Pocket Guide to Chemical Hazards, Nitrogen dioxide (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 Nitrous fumes
| Part number | Tube | Measuring range | Pack |
|---|---|---|---|
| 8103661 | Draeger Nitrous Fumes 0.2/a Detector Tubes, Box of 10 | 0.2 to 6 ppm | Box of 10 |
| 3706171 | Draeger Nitrous Fumes 20/b Detector Tubes, Box of 10 | 20 to 500 ppm | Box of 10 |
| 8103941 | Draeger Nitrous Fumes 50/b Detector Tubes, Box of 10 | 50 to 1000 ppm / 2000 to 4000 ppm | Box of 10 |
Every Draeger tube for this gas, with live prices: Nitrous fumes detector tubes.
Draeger CH31001 questions
What does the Draeger CH31001 measure? Nitrous fumes in air, measuring range 5 to 100 ppm / 2 to 50 ppm.
How many pump strokes does the CH31001 take? 5 / 10 strokes (n) per the handbook, p. 232. Measuring time approx. 1 min / approx. 2 min.
Which pump does the CH31001 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 CH31001? yellow → blue-gray, read against the scale printed on the tube.
Do Draeger CH31001 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 CH31001? 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.
