Draeger Nitric Acid Detector Tubes
1 Draeger short-term detector tube for Nitric acid, measuring range 5 to 50 ppm / 1 to 15 ppm. Ranges, pump strokes, measuring times and color changes as published in the Dräger-Tubes & MicroTubes Handbook, 22nd edition (p. 228); prices are live. Ships in 1–2 business days.
Every Draeger tube for Nitric acid
| Part number | Tube | Measuring range | Strokes (n) | Measuring time | Color change | Pack | Price | |
|---|---|---|---|---|---|---|---|---|
| 6728311 | Draeger Nitric Acid 1/a Detector Tubes, Box of 10 | 5 to 50 ppm / 1 to 15 ppm | 10 / 20 | approx. 2 min / approx. 4 min | blue → yellow | Box of 10 | $142.42 |
Source: Dräger-Tubes & MicroTubes Handbook, 22nd edition (order no. 90 92 086), p. 228, Dräger Safety AG & Co. KGaA. Each tube page carries the full handbook entry: standard deviation, temperature and humidity limits, reaction principle and cross-sensitivities.
Nitric acid exposure limits
| Limit | Value |
|---|---|
| OSHA PEL | TWA 2 ppm (5 mg/m³) |
| NIOSH REL | TWA 2 ppm (5 mg/m³) ST 4 ppm (10 mg/m³) |
| NIOSH IDLH | 25 ppm |
| CAS number | 7697-37-2 |
| Formula | HNO₃ |
| Other names | Aqua fortis, Engravers acid, Hydrogen nitrate, Red fuming nitric acid, RFNA, White fuming nitric acid (WFNA) |
| Conversion | 1 ppm = 2.58 mg/m³ |
Source: NIOSH Pocket Guide to Chemical Hazards, Nitric acid (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. NIOSH physical description: Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]
Draeger short-term tubes are read on a Draeger accuro or X-act 5000 tube pump. Per the handbook (pp. 28–29), Draeger tubes and Draeger pumps are matched at the factory and form a single unit; other makers' pumps and tubes are not interchangeable with them. All Draeger tubes A–Z.
Guides: Draeger tubes by gas and range · tube ranges and the OSHA and NIOSH limits · what Draeger tubes measure · what the tube names mean · how to read a tube · the accuro pump.
Draeger Nitric acid tube questions
Which Draeger tubes measure Nitric acid? 6728311 (5 to 50 ppm / 1 to 15 ppm).
What is the lowest range Draeger tube for Nitric acid? 6728311, 5 to 50 ppm / 1 to 15 ppm, 10 / 20 strokes.
What is the OSHA exposure limit for Nitric acid? OSHA PEL TWA 2 ppm (5 mg/m³); NIOSH REL TWA 2 ppm (5 mg/m³) ST 4 ppm (10 mg/m³); IDLH 25 ppm (NIOSH Pocket Guide).
Which pump reads Draeger Nitric acid tubes? The Draeger accuro hand pump or the X-act 5000 pump. MicroTubes, where listed, are read on the X-act 7000.
Do Draeger Nitric acid tubes expire? Yes. The expiration date (month and year) is printed 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).