Dräger 7mm Detector Tubes

The detection tube method for gas analysis was first popularized by Dräger, a German company founded in 1889.

Dräger developed the first commercially successful colorimetric gas detection tubes in the early 20th century.

These tubes allow rapid measurement of toxic or flammable gases and vapors by drawing a known volume of air through a chemical reagent-filled tube, which changes color depending on the gas concentration.

The system became widely adopted in industrial safety, mining, firefighting, and emergency response, setting the standard for portable gas detection.

Dräger-Tube Description Standard range of measurement (20 °C, 1013 hPa): Measurement Time
(sec or min)		 Dräger Part No.
Acetaldehyde 100/a 100 – 1000 ppm 5 6726665
Acetic Acid 5/a 5 – 80 ppm 30sec 6722101
Acetone 40/a (5) 40 -800 ppm 1 8103381
Acetone 100/b 100 – 12,000 ppm 4 CH22901
Acid Test qualitative 3 sec 8101121
Acrylonitrile 0.2/a 0.2 – 4 ppm 4 8103701
Activation tube for use in conjunction with Formaldehyde 0.2/a tube     8101141
Amine-Test qualitative 5 sec 8101061
Ammonia 0.25/a 0.25 – 3 ppm 1 8101711
Ammonia 2/a 2 – 30 ppm 1 6733231
Ammonia 5/a 5 – 70 ppm
50 – 600 ppm		 6 sec CH20501
Ammonia 5/b 5 – 100 ppm 10 sec 8101941
Ammonia 0.5%/a 0.5 – 10 ppm 20 sec CH31901
Aniline 0.5/a 0.5 – 10 ppm 4 6733171
Aniline 5/a 1 – 20 ppm 3 CH20401
Arsine 0.05/a 0.05 – 3 ppm 6 CH25001
Benzene 0.25/a 0.25 – 2 ppm 2 – 10 ppm 5
1		 8103691
Benzene 2/a (5) 2 – 60 ppm 8 8101231
Benzene 5/a 5 – 40 ppm 3 6718801
Benzene 5/b 5 – 50 ppm 8 6728071
Benzene 15/a 15 – -420 ppm 4 8101741
BTX (Toluene 5/b) 50 – 300 ppm
5 – 80 ppm		 1
5		 8101661
Carbon Dioxide 100/a 100 – 3,000 ppm 4 8101811
Carbon Dioxide 0.1%/a 0.5 – 6 Vol.-%
0.5 – 6 Vol.-%		 30 sec CH23501
Carbon Dioxide 0.5%/a 0.5 – 10 Vol.-% 30 sec CH31401
Carbon Dioxide 1%/a 1 – 20 Vol.-% 30 sec CH25101
Carbon Dioxide 5%/A 5 – 60 Vol.-% 2 CH20301
Carbon Disulphide 3/a 3 – 95 ppm 2 81018912
Carbon Disulphide 5/a 5 – 60 ppm 3 6728351
Carbon Disulphide 30/a 0.1 – 10 mg/L 1 CH23201
Carbon Monoxide 2/a 2 – 60 ppm 4 6733051
Carbon Monoxide 5/c 100 – 700 ppm
5 – 150 ppm		 30 sec
2.5		 CH25601
Carbon Monoxide 8/a 8 – 150 ppm 2 CH19701
Carbon Monoxide 10/b 100 – 3,000 ppm
10 – 300 ppm		 20 sec
4		 CH20601
Carbon Monoxide 0.3%/b 0.3 – 7 Vol.-% 30 sec CH299012
Carbon Tetrachloride 0.1/a 0.1 – 5 ppm 2.5 8103501
Carbon Tetrachloride 1/a 1 – 15 ppm 10 8101021
Chlorine 0.2/a 0.2 – 3 ppm 3 – 30 ppm 3
20 sec		 CH24301
Chlorine 0.3/b 0.3 – 5 ppm 8 6728411
Chlorine 50/a 50 – 500 ppm 20 sec CH20701
Chlorine Dioxide 0.025/a specific 0.025 – 0,1 ppm
0.1 – 1 ppm		 7.5
2.5		 8103491
Chlorobenzene 5/a (5) 5 – 200 ppm 3 6728761
Chloroform 2/b (5) 20 – 80 ppm 3 67288612
Chloroformates 0.2/b 0.2 – 10 ppm 3 6718601
Chloromethane 10/a 10-100 ppm 1.5 8103911
Chloroprene 5/a 5 – 60 ppm 3 6718901
Chloropicrine 0.1/a 0.1 – 2 ppm 7.5 8103421
Chromic Acid 0.1/a (9) 0.1 – 0.5 mg/m3 8 6728681
Cyanide 2/a 2 – 15 mg/m3 2 67287912
Cyanogen Chloride 0.25/a 0.25 – 5 ppm 5 CH19801
Cyclohexane 40/a 40 – 200 ppm
500 – 3000 ppm		 75 sec
15 sec		 8103671
Cyclohexylamine 2/a 2 – 30 ppm 4 6728931
Diesel Fuel 25 – 200 mg/m3 30 81034752
Diethyl Ether 100/a 100 – 4000 ppm 2.5 6730501
Dimethyl Formamide 10/b 10 – 40 ppm 3 6718501
Dimethyl Sulphate 0.005/c (9) 0.005 – 0.05 ppm 50 6718701
Dimethyl Sulphide 1/a (5) 1 – 15 ppm 15 6728451
Epichlorhydrin 5/b 5 – 80 ppm 8 6728111
Ethanol 100/a 100 – 3000 ppm 1.5 8103761
Ethyl Acetate 200/a 200 – 3,000 ppm 5 CH20201
Ethyl Benzene 30/a 30 – 400 ppm 2 6728381
Ethylene 0.1/a (5) 0.2 -5 ppm 30 8101331
Ethylene 50/a 50 – 2,500 ppm 6 6728051
Ethylene Glycol 10 (5) 10 – 180 mg/m3 7 8101351
Ethylene Oxide 1/a (5) 1 – 15 ppm 8 6728961
Ethylene Oxide 25/a 25 – 500 ppm 6 6728241
Ethyl Glycol Acetate 50/b 50 – 700 ppm 3 6726801
Fluorine 0.1/a 0.1 – 2 ppm 5 8101491
Formaldehyde 0.2/a 0.2 – 2.5 ppm
0.5 – 5 ppm		 1.5 6733081
Activation Tube for use in conjunction with Formaldehyde 0. 2/a tube   8101141
Formaldehyde 2/a 2 – 40 ppm 30 sec 8101751
Formic Acid 1/a 1 – 15 ppm 3 6722701
Halogenated 100 – 2,600 ppm 1 8101601
Hydrocarbons 100/a (8)      
Hexane 10/a 10 – 200 ppm
300 – 2,500 ppm		 5
1		 8103681
Hydrazine 0.01/a 0.01 – 0.4 ppm
0.5 – 0.6 ppm		 20
1		 8103351
Hydrazine 0.25/a 0.25 – 10 ppm
0.1 – 5 ppm		 1
2		 CH31801
Hydrocarbon 2/a 2 – 24 mg/L 5 8103581
Hydrocarbon 0.1%/c 0.1 – 1.3 Vol.-% 2 8103571
Hydrochloric Acid 0.2/a 0.2 -3 ppm 3 – 20 ppm 2
40 sec		 8103481
Hydrochloric Acid 1/a 1 – 10 ppm 2 CH29501
Hydrochloric Acid 50/a 500 – 5,000 ppm
50 – 500 ppm		 30 sec
4		 6728181
Hydrochloric Acid /Nitric Acid 1/a     8101681
–  Hydrochloric Acid 1 – 10 ppm 1.5  
–  Nitric Acid 1 – 15 ppm 3  
Hydrocyanic Acid 0.5/a 0.5 – 5 ppm 5 – 50 ppm 30 sec
0,5		 8103601
Hydrogen 0.2%/a 0.2 – 2.0 Vol.-% 1 8101511
Hydrogen 0.5%/a 0.5 – 3.0 Vol.-% 1 CH30901
Hydrogen Fluoride 0.5/a 0.5 – 15 ppm
0.5 – 15 ppm		 2
25 sec		 8103251
Hydrogen Fluoride 1.5/b 1.5 -15 ppm 2 CH30301
Hydrogen Peroxide 0.1/a 0.1 – 3 ppm 3 8101041
Hydrogen Sulphide 0.2/a 0.2 – 5 ppm 5 8101461
Hydrogen Sulphide 0.2/b 0.2 – 6 ppm 55 sec 8101991
Hydrogen Sulphide 0.5/a 0.5 – 15 ppm 6 6728041
Hydrogen Sulphide 1/c 10 – 200 ppm
1 – 20 ppm		 20 sec
3		 6719001
Hydrogen Sulphide 1/d 10 – 200 ppm
1 – 20 ppm		 1
10		 8101831
Hydrogen Sulphide 2/a 20 – 200 ppm
2 – 20 ppm		 20 sec
3.5		 6728821
Hydrogen Sulphide 2/b 2 – 60 ppm 30 sec 8101961
Hydrogen Sulphide 5/b 5 – 60 ppm 4 CH29801
Hydrogen Sulphide 100/a 100 – 2,000 ppm 30 sec CH29101
Hydrogen Sulphide 0.2%/A 0.2 – 7 Vol.-% 2 CH28101
Hydrogen Sulphide 2%/a 2 – 40 Vol.-% 1 8101211
Simultan. Tube H2S + SO2 0.2%/a 0.2 – 7 Vol.-% 2 CH28201
Iodine 0.1/a 1 – 5 ppm
0.1 – 0.6 ppm		 1
5		 8103521
i-Propanol 50/a 50 -4000 ppm 2.5 8103741
Mercaptan 0.1/a 0.1 -2.5 ppm 3 – 15 ppm 3
40 sec		 8103281
Mercaptan 0.5/a 0.5 – 5 ppm 5 6728981
Mercaptan 20/a 20 – 100 ppm 2.5 8101871
Mercury Vapour 0.1/b 0.05 – 2 mg/m3 10 CH23101
Methanol 20/a 20 – 250 ppm
200 – 5000 ppm		 6
2		 8103801
Methyl Acrylate 5/a 5 5 – 200 ppm 5 6728161
Methyl Bromide 0.1/a 0.1 – 5 ppm 5 – 50 ppm 8
4		 3706301
Methylene Chloride 20/a 20 ppm 7 81035912
Natural Gas Odorization, 3 mg/m3 3 8103071
Tertiary Butylmercaptan 1 mg/m3 5  
Natural Gas Test (5) qualitative 100 CH200012
n-Butanol 10/a 10 – 250 ppm
250 – 2000 ppm		 6
1		 8103861
Nickel Tetracarbonyl 0.1/a (9) 0.1 – 1 ppm 5 CH19501
Nitric Acid 1/a 5 – 50 ppm
1 – 15 ppm		 2
4		 6728311
Nitrogen Dioxide 0.1/a 0,1 – 5 ppm
5 – 30 ppm		 75 sec
15 sec		 8103631
Nitrogen Dioxide 2/c 5 – 100 ppm
2 – 50 ppm		 1
2		 6719101
Nitrous Fumes 0.2/a 0,2 – 6 ppm 75 sec 8103661
Nitrous Fumes 2/a 5 – 100 ppm
2 – 50 ppm		 1
2		 CH31001
Nitrous Fumes 20/a 20 – 500 ppm 30 sec 6724001
Nitrous Fumes 50/b 50 – 1,000 ppm
500 – 4,000 ppm		 40 sec
80 sec		 8103941
Oil 10/a-P 0.1 – 1 mg/m3 25 6728371
Oil Mist 1/a 1 – 10 mg/m3 25 6733031
Olefine 0.05%/a   5 6733031
–  Propylene 0.06 – 3.2 Vol.-%    
–  Butylene
Organ. Arsenic Compounds		 0.04 – 2.4 Vol -%
0.3 mg/m3  as AsH 3		 3 CH26303
and Arsine
Organic Basic Nitrogen Compounds		 1 mg/m3 1.5 CH25903
Oxygen 5%/B (8) 5 – 23 Vol.-% 1 6728081
Oxygen 5%/C 5 – 23 Vol.-% 1 8103261
Ozone 0.05/b 0.05 – 0.7 ppm 3 6733181
Ozone 10/a 20 – 300 ppm 20 sec CH21001
Pentane 100/a 100 – 1,500 ppm 15 sec 6724701
Perchloroethylene 0.1/a 0.5 – 4 ppm
0.1 – 1 ppm		 3
9		 8101551
Perchloroethylene 2/a 20 – 300 ppm
2 – 40 ppm		 30 sec
3		 8101501
Petroleum Hydrocarbons 10/a 10 – 300 ppm 1 8101691
Petroleum Hydrocarbons 100/a 100 – 2,500 ppm 30 sec 6730201
Phenol 1/b 1 – 20 ppm 5 8101641
Phosgene 0.02/a 0.02 – 1 ppm
0.02 – 0.6 ppm		 6
12		 8101521
Phosgene 0.25/c 0.25 – 5 ppm
0.01 – 0.3 ppm		 1
8		 CH28301
Phosphine 0.01/a 0.1 – 1 ppm
0.01 – 0.3 ppm		 2.5
8		 8101611
Phosphine 0.1/c 0.5 – 3 ppm
0.1 – 1.0 ppm		 1
2.5		 8103711
Phosphine 0.1/b 1 – 15 ppm 20 sec 8103341
in Acetylene 0.1 – 1 ppm 4  
Phosphine 1/a 10 – 100 ppm
1 – 20 ppm		 2
10		 8101801
Phosphine 25/a 200 – 10,000 ppm
25 – 900 ppm		 1.5
13		 8101621
Phosphine 50/a 50 ppm 2 CH21201
Phosphoric Acid Ester 0.05/a 0.05 ppm 5 6728461
Polytest qualitative 1.5 CH28401
Pyridine 5/A 5 ppm 20 6728651
Styrene 10/a 10 – 200 ppm 3 6723301
Styrene 10/b 10 – 250 ppm 3 6733141
Styrene 50/a 50 – 400 ppm 2 CH27601
Sulphur Dioxide 0.1/a 0.1 – 3 ppm 20 6727101
Sulphur Dioxide 0.5/a 1 – 25 ppm
0.5 – 5 ppm		 3
6		 6728491
Sulphur Dioxide 1/a 1 – 25 ppm 3 CH31701
Sulphur Dioxide 20/a 20 – 200 ppm 3 CH24201
Sulphur Dioxide 50/b 400 – 8,000 ppm 15 sec 8101531
Sulphuric Acid 1/a (9) 1 – 5 mg/m3 100 6728781
Sulfuryl Fluoride 1/a (5) 1 – 5 ppm 3 8103471
Tertiary Butylmercaptan 3 – 15 mg/m3 3 8103071
Natural Gas Odorization 1 – 10 mg/m3 5  
Tetrahydrothiophene 1/b (5) 1 – 10 ppm
4 – 40 mg/m3		 10 8101341
Thioether 1 mg/m3 1.5 CH25803
Toluene 5/b 50 – 300 ppm
5 – 80 ppm		 2
10		 8101661
Toluene 50/a 50 – 400 ppm 1.5 8101701
Toluene 100/a 100 – 1,800 ppm 1.5 8101731
Toluene Diisocyanate 0.02/A (9) 0.02 – 0.2 ppm 20 6724501
Trichloroethane 50/d (5) 50 – 600 ppm 2 CH21101
Trichloroethylene 2/a 20 – 250 ppm
2 – 50 ppm		 1.5
2.5		 6728541
Trichloroethylene 50/a 50 – 500 ppm 1.5 8101881
Triethylamine 5/a 5 – 60 ppm 3 6718401
Vinyl Chloride 0.5/b 5 – 30 ppm
0.5 – 5 ppm		 30 sec
3		 8101721
Vinyl Chloride 100/a 100 – 3,000 ppm 4 CH19601
Water Vapour 0.1 1 – 40 mg/L 2 CH23401
Water Vapour 0.1/a 0.1 – 1.0 mg/L 1.5 8101321
Water Vapour 3/a 3.0 – -60 lbs/mmcf 90 sec 8103031
Water Vapour 1/b 20 – 40 mg/L
1 – 8 mg/L		 20 sec
40 sec		 8101781
Water Vapour 50/a 50 – 1000 I bs/mmcf 40 sec 8103021
Xylene 10/a 10 -400 ppm 1 6733161