Nextteq Dosimeter Detection Tubes

Gastec Dositubes

Gastec Dositubes are used for TWA measuring of gases in area and personnel monitoring applications. Dositubes do not require the use of any sampling pumps and can be used over various different sampling times. Dositubes provide an economical means to take TWA, STEL, or long term sampling up to 2 days. Personnel exposure can be monitored for as little as 30 minutes up to a full work day.

Gastec Dositubes are designed with a carefully chosen inner diameter and filled with both a reaction agent and a diffuser. This causes the gas within the Dositubes to diffuse at a constant rate resulting in a clear ppm/hour readings without the need for charts, color scales, or anything but a direct interpretation of the direct reading from the tube.

Gastec Dositubes operate based on the passive diffusion of gas. All Dositubes include stickers for affixing to the tube and recording the start time of the sampling. For area monitoring the tube can simply be set down and retrieved at the end of the sampling period to record the readings. For personnel monitoring, a tube holder with a coller clip can be used to keep the tube in the wearer’s breathing area. The reuseable tube holder, p/n 710, also includes a built in tip breaker that is strongly recommended for use even if the tube will be used for area monitoring.

What to Order

Gastec Dositubes are listed below alphabetically by the gas in which they can be used to measure. All Dositubes come in a box with 10 tubes for 10 measurements and instructions. Gases that must be measured for using a correction factor are indicated. Dositubes come ready to use and do not require a sampling pump.

The holder/tip breaker for Dositubes is not included with the tubes. They are reuseable, come in packs of 1, 3, or 10, and are available below under accessories.

Gastec Dosimeter Gas Detection Tubes

Call to Order
1-888-234-5678

Part No. Description Price
91D Acetaldehyde dosimeter tubes12, 0.1–20 ppm $77.33
151D Acetaldehyde dosimeter tubes12, 4–1200 ppm $77.33
152D Acetaldehyde dosimeter tubes12, 1.2–360 ppm $77.33
81D Acetic Acid dosimeter tubes1, 0.5–100 ppm $77.33
81D Acetic Anhydride dosimeter tubes12, 0.3–60 ppm $77.33
151D Acetone dosimeter tubes1, 5–1500 ppm $77.33
152D Acetone dosimeter tubes12, 1.4–420 ppm $77.33
3D Ammonia dosimeter tubes1, 2.5–1000 ppm $77.33
3DL Ammonia dosimeter tubes1, 0.1–10 ppm $77.33
122DL Benzene dosimeter tubes12, 2.4–600 ppm $77.33
174D 1,3-Butadiene dosimeter tubes1, 1.3–200 ppm $77.33
2D Carbon Dioxide dosimeter tubes1, 0.02–12% $77.33
1D Carbon Monoxide dosimeter tubes1, 1.04–2000 ppm $77.33
1DL Carbon Monoxide dosimeter tubes1, 0.4–400 ppm $77.33
8D Chlorine dosimeter tubes1, 0.08–100 ppm $77.33
132D Chlorine dosimeter tubes12, 2.4–240 ppm $77.33
122DL Cumene12 dosimeter tubes, 3.4–850 ppm $77.33
174D trans-1,2-Dichloroethylene12 dosimeter tubes, 3.8–600 ppm $77.33
132D trans-1,2-Dichloroethylene12 dosimeter tubes, 6–600 ppm $77.33
174D cis-1,2-Dichloroethylene12 dosimeter tubes, 5–800 ppm $77.33
132D Dichlorvos dosimeter tubes12, 10–100 ppm $77.33
3D Dimethylamine dosimeter tubes12, 1.9–750 ppm $77.33
3D n,n-Dimethylethylamine dosimeter tubes12, 4–1600 ppm $77.33
112D Ethanol dosimeter tubes1, 100–25000 ppm $81.02
122DL Ethyl Benzene dosimeter tubes12, 2.8–700 ppm $77.33
174D Ethylene dosimeter tubes12, 1.56–240 ppm $77.33
174D Ethylene Dichloride dosimeter tubes12, 3.9–600 ppm $77.33
91D Formaldehyde dosimeter tubes1, 0.1–20 ppm $77.33
81D Formic Acid dosimeter tubes12, 0.55–110 ppm $77.33
91D Furfural dosimeter tubes12, 0.3–60 ppm $77.33
3D Hydrazine dosimeter tubes12, 1.6–650 ppm $77.33
14D Hydrogen Chloride dosimeter tubes1, 1–100 ppm $77.33
132D Hydrogen Chloride dosimeter tubes12, 1.8–180 ppm $77.33
17D Hydrogen Chloride dosimeter tubes12, 0.4–40 ppm $77.33
12D Hydrogen Cyanide dosimeter tubes1, 1–200 ppm $76.51
17D Hydrogen Fluoride dosimeter tubes1, 1–100 ppm $77.33
14D Hydrogen Fluoride dosimeter tubes12, 2.5–250 ppm $77.33
32D Hydrogen Peroxide dosimeter tubes1, 0.5–40 ppm $77.33
4D Hydrogen Sulfide dosimeter tubes1, 0.2–200 ppm $77.33
174D Isoprene dosimeter tubes12, 2.6–400 ppm $77.33
3DL Methylamine dosimeter tubes12, 0.19–19 ppm $77.33
152D Methyl Ethyl Ketone dosimeter tubes1, 2–600 ppm $77.33
91D Methyl Ethyl Ketone dosimeter tubes12, 0.125–25 ppm $77.33
151D Methyl Ethyl Ketone dosimeter tubes12, 6.5–1950 ppm $77.33
151D Methyl Isobutyl Ketone dosimeter tubes12, 11.5–3450 ppm $77.33
152D Methyl Isobutyl Ketone dosimeter tubes1, 4–1200 ppm $77.33
14D Nitric Acid dosimeter tubes12, 0.8–80 ppm $77.33
17D Nitric Acid dosimeter tubes12, 0.32–32 ppm $77.33
9D Nitrogen Dioxide dosimeter tubes1, 0.1–30 ppm $77.33
9DL Nitrogen Dioxide dosimeter tubes1, 0.01–3.0 ppm $77.33
122DL Styrene dosimeter tubes12, 26–5600 ppm $77.33
174D Styrene dosimeter tubes12, 48–7600 ppm $77.33
5DH Sulfur Dioxide dosimeter tubes1, 10–600 ppm $77.33
5D Sulfur Dioxide dosimeter tubes1, 0.2–100 ppm $77.33
133D Tetrachloroethylene dosimeter tubes1, 3–150 ppm $77.33
132D Tetrachloroethylene dosimeter tubes12, 1.5–150 ppm $77.33
122DL Toluene dosimeter tubes1, 2–500 ppm $77.33
132D Trichloroethylene dosimeter tubes1, 3–300 ppm $77.33
3D Triethylamine dosimeter tubes12, 5.3–2100 ppm $77.33
3DL Trimethylamine dosimeter tubes12, 0.23 23 ppm $77.33
174D Vinyl Chloride dosimeter tubes12, 1.56–240 ppm $77.33
132D Vinylidene chloride dosimeter tubes12, 6–600 ppm $77.33
  • 1 Includes 10 tubes for 10 measurements and instructions, does not include holder/tip breaker
  • 2 Measured for via a correction factor

Gastec Dosimeter Gas Detection Tubes Accessories

Call to Order
1-888-234-5678

Part No. Description Price
710-1 Tube holder/tip breaker for Gastec dosimeter tubes, QTY 1 $14.69
710-3 Tube holder/tip breaker for Gastec dosimeter tubes, QTY 3 $42.48
710-10 Tube holder/tip breaker for Gastec dosimeter tubes, QTY 10 $95.49

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