Which substances does Fresenius Umwelttechnik measure in the Chlorinated Hydrocarbons category?

Fresenius Umwelttechnik measures the following Chlorinated Hydrocarbons: • Ascusol (2-Brompropan) (C₃H₇Br) - Detection Limit: 1.0 ppm (5 mg/m³) - Measurement Range: 10000 ppm (50 g/m³) • Chloroethylene / Vinyl Chloride (C₂H₃Cl) - Detection Limit: 2.0 ppm - Measurement Range: 50000 ppm • Chloromethane (CH₃Cl) - Detection Limit: 2.0 ppm (5 mg/m³) - Measurement Range: 1000 ppm (2 g/m³) • Dichloromethane (CH₂Cl₂) - Detection Limit: 0.5 ppm (2 mg/m³) - Measurement Range: 11000 ppm (40 g/m³) • ENSOLV (1-Bromopropane) (C₃H₇Br) - Detection Limit: 2.0 ppm (10 mg/m³) - Measurement Range: 10000 ppm (40 g/m³) • HFE-71DE (Gemisch) (Various) - Detection Limit: 0.2 ppm (5 mg/m³) - Measurement Range: 1600 ppm (40 g/m³) • Carbon Tetrachloride (CCl₄) - Detection Limit: 0.8 ppm (2 mg/m³) - Measurement Range: 6000 ppm (40 g/m³) • Tetrachloroethylene (C₂Cl₄) - Detection Limit: 0.3 ppm (2 mg/m³) - Measurement Range: 6000 ppm (40 g/m³) • Trichloroethylene (C₂HCl₃) - Detection Limit: 0.3 ppm (2 mg/m³) - Measurement Range: 7500 ppm (40 g/m³) • Chloroform (CHCl₃) - Detection Limit: 1.0 ppm (2 mg/m³) - Measurement Range: 8000 ppm (40 g/m³) • cis-1,2-Dichloroethene (C₂H₂Cl₂) - Detection Limit: 2.0 ppm (10 mg/m³) - Measurement Range: 10000 ppm (40 g/m³) • trans-1,2-Dichloroethene (C₂H₂Cl₂) - Detection Limit: 1.2 ppm (2 mg/m³) - Measurement Range: 10000 ppm (40 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Hot Gases category?

Fresenius Umwelttechnik measures the following Hot Gases: • Formaldehyde (CH₂O) - Detection Limit: 3 ppm (4 mg/m³) - Measurement Range: 160 ppm (0.2 g/m³) • Methane Slip (CH₂) - Detection Limit: 8 ppm (5 mg/m³) - Measurement Range: 225 ppm (0.15 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Aromatic Hydrocarbons category?

Fresenius Umwelttechnik measures the following Aromatic Hydrocarbons: • 1,2-Dichlorobenzene (C₆H₄Cl₂) - Detection Limit: 1.0 ppm (5 mg/m³) - Measurement Range: 8000 ppm (50 g/m³) • Benzene (C₆H₆) - Detection Limit: 1.5 ppm (5 mg/m³) - Measurement Range: 12000 ppm (40 g/m³) • Naphthalene (C₁₀H₈) - Detection Limit: 1.0 ppm (7 mg/m³) - Measurement Range: 200 ppm (1 g/m³) • Pyridine (C₅H₅N) - Detection Limit: 3.0 ppm (10 mg/m³) - Measurement Range: 15000 ppm (50 g/m³) • Styrene (C₈H₈) - Detection Limit: 1.0 ppm (5 mg/m³) - Measurement Range: 6000 ppm (25 g/m³) • Total BTX aromatics (C₆H₆/C₇H₈/C₈H₁₀) - Detection Limit: 1.5 ppm (5 mg/m³) - Measurement Range: 12000 ppm (40 g/m³) • Toluene (C₇H₈) - Detection Limit: 1.5 ppm (5 mg/m³) - Measurement Range: 12000 ppm (40 g/m³) • m-Xylene / o-Xylene / p-Xylene (C₈H₁₀) - Detection Limit: 1.5 ppm (5 mg/m³) - Measurement Range: 12000 ppm (40 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Alkanes category?

Fresenius Umwelttechnik measures the following Alkanes: • Cyclopentane (C₅H₁₀) - Detection Limit: 0.6 ppm (2 mg/m³) - Measurement Range: 17000 ppm (50 g/m³) • Iso-octane (C₈H₁₈) - Detection Limit: 0.4 ppm (2 mg/m³) - Measurement Range: 10500 ppm (50 g/m³) • n-Butan (C₄H₁₀) - Detection Limit: 0.8 ppm (2 mg/m³) - Measurement Range: 21000 ppm (50 g/m³) • n-Heptane (C₇H₁₆) - Detection Limit: 0.9 ppm (2 mg/m³) - Measurement Range: 12000 ppm (50 g/m³) • n-Hexane (C₆H₁₄) - Detection Limit: 0.6 ppm (2 mg/m³) - Measurement Range: 14000 ppm (50 g/m³) • n-Pentane (C₅H₁₂) - Detection Limit: 0.6 ppm (2 mg/m³) - Measurement Range: 17000 ppm (50 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Others category?

Fresenius Umwelttechnik measures the following Others: • 1,3-Butadiene (C₄H₆) - Detection Limit: 2.2 ppm (5 mg/m³) - Measurement Range: 200 ppm (0.45 g/m³) • Arsine (AsH₃) - Detection Limit: 0.03 ppm0.03 ppm - Measurement Range: 0.5 ppm1.0 ppm • Hydrogen Chloride (HCl) - Detection Limit: 0 ppm - Measurement Range: 100 ppm (0.150 g/m³) • Clindry (mixture) (-) - Detection Limit: 20 mg/m³ - Measurement Range: 50 g/m³ • Hydrogen Cyanide (HCN) - Detection Limit: 0 ppm0 ppm - Measurement Range: 50 ppm150 ppm • Decamethylcyclopentasiloxane (C₁₀H₃₀O₅Si₅) - Detection Limit: 0.1 ppm (1 mg/m³) - Measurement Range: 33000 ppm (50 g/m³) • Diborane (B₂H₆) - Detection Limit: 0.03 ppm (0.03 mg/m³) - Measurement Range: 1 ppm (0.0012 g/m³) • Dimethyl sulfoxide (DMSO) (C₂H₆OS) - Detection Limit: 6.0 ppm (20 mg/m³) - Measurement Range: 15500 ppm (50 g/m³) • Nitrous oxide (N₂O) - Detection Limit: 0.5 ppm (1 mg/m³) - Measurement Range: 6000 ppm (11 g/m³) • Ethyl acetate (H₃COOC₂H₅) - Detection Limit: 1.1 ppm (4 mg/m³) - Measurement Range: 850 ppm (3 g/m³) • Moisture (H₂O) - Detection Limit: 150.0 ppm (100 mg/m³) - Measurement Range: 400000 ppm (300 g/m³) • Carbon monoxide (CO) - Detection Limit: 0.1 ppm (4 mg/m³) - Measurement Range: 10000 ppm (12 g/m³) • Phosphine (PH₃) - Detection Limit: 40 ppm (56 mg/m³) - Measurement Range: 2000 ppm (2.83 g/m³) • Ozone (O₃) - Detection Limit: 0 ppm0 ppm - Measurement Range: 1 ppm (0.002 g/m³)5 ppm (0.009 g/m³) • Phosgene (CCl₂O) - Detection Limit: 0.2 ppm (1 mg/m³) - Measurement Range: 250 ppm (1 g/m³) • Sulfur dioxide (SO₂) - Detection Limit: 2.0 ppm - Measurement Range: 5000 ppm • Nitrogen dioxide (NO₂) - Detection Limit: 2.1 ppm (4 mg/m³) - Measurement Range: 8000 ppm (15 g/m³) • n-Butyl acetate (C₆H₁₂O₂) - Detection Limit: 0.4 ppm (2 mg/m³) - Measurement Range: 8300 ppm (40 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Alcohols / Ketones category?

Fresenius Umwelttechnik measures the following Alcohols / Ketones: • Acetone (C₃H₆O) - Detection Limit: 0.8 ppm (2 mg/m³) - Measurement Range: 17000 ppm (40 g/m³) • Ethanol (C₂H₅OH) - Detection Limit: 1.0 ppm (2 mg/m³) - Measurement Range: 21000 ppm (40 g/m³) • Isopropyl alcohol (IPA) (C₃H₇OH) - Detection Limit: 0.8 ppm (2 mg/m³) - Measurement Range: 16000 ppm (40 g/m³) • Methanol (CH₃OH) - Detection Limit: 1.5 ppm (2 mg/m³) - Measurement Range: 30000 ppm (40 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Anesthetic Gases category?

Fresenius Umwelttechnik measures the following Anesthetic Gases: • Desflurane (C₃H₂OF₆) - Detection Limit: 0.2 ppm (1 mg/m³) - Measurement Range: 300 ppm (2 g/m³) • Enflurane (C₃H₂ClF₅O) - Detection Limit: 0.4 ppm (3 mg/m³) - Measurement Range: 1000 ppm (70 g/m³) • Halothane (C₂HBrClF₃) - Detection Limit: 0.5 ppm (4 mg/m³) - Measurement Range: 1200 ppm (10 g/m³) • Isoflurane (C₃H₂OClF₆) - Detection Limit: 0.2 ppm (1 mg/m³) - Measurement Range: 2600 ppm (20 g/m³) • Sevoflurane (C₄H₃OF₇) - Detection Limit: 0.4 ppm (5 mg/m³) - Measurement Range: 6000 ppm (50 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Landfill Gases / Biogas / Composting Gases category?

Fresenius Umwelttechnik measures the following Landfill Gases / Biogas / Composting Gases: • Carbon dioxide (CO₂) - Detection Limit: 0.01 Vol.-% - Measurement Range: 100 Vol.-% • Methane (CH₄) - Detection Limit: 0.01 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Hydrogen category?

Fresenius Umwelttechnik measures the following Hydrogen: • Hydrogen in Argon (H₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Hydrogen in Helium (H₂) - Detection Limit: 20 Vol.-% - Measurement Range: 100 Vol.-% • Hydrogen in Carbon Dioxide (H₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Hydrogen in Methane (H₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Hydrogen in Nitrogen / Air (H₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Helium category?

Fresenius Umwelttechnik measures the following Helium: • Helium in Argon (He) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Helium in Nitrogen / Air (He) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Carbon Dioxide category?

Fresenius Umwelttechnik measures the following Carbon Dioxide: • Carbon Dioxide in Argon (CO₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Carbon Dioxide in Nitrogen / Air (CO₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Carbon Monoxide category?

Fresenius Umwelttechnik measures the following Carbon Monoxide: • Carbon Monoxide in Hydrogen (CO) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Argon category?

Fresenius Umwelttechnik measures the following Argon: • Argon in Carbon Dioxide (Ar) - Detection Limit: 40 Vol.-% - Measurement Range: 100 Vol.-% • Argon in Oxygen (Ar) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Argon in Nitrogen / Air (Ar) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Methane category?

Fresenius Umwelttechnik measures the following Methane: • Methane in Argon (CH₄) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Methane in Nitrogen / Air (CH₄) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Oxygen category?

Fresenius Umwelttechnik measures the following Oxygen: • Oxygen (O₂) - Detection Limit: 0 Vol.-%0 Vol.-%5 Vol.-% - Measurement Range: 5 Vol.-%25 Vol.-%95 Vol.-% • Oxygen (O₂) - Detection Limit: 0.1 Vol.-%0.1 Vol.-%0.1 Vol.-%0.1 Vol.-% - Measurement Range: 5 Vol.-%25 Vol.-%50 Vol.-%100 Vol.-% • Oxygen in Argon (O₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Oxygen in Nitrogen (O₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Nitrogen category?

Fresenius Umwelttechnik measures the following Nitrogen: • Stickstoff in Argon (N₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Stickstoff in Kohlenstoffdioxid (N₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Stickstoff in Wasserstoff (N₂) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Sulfides category?

Fresenius Umwelttechnik measures the following Sulfides: • Hydrogen Sulfide (H₂S) - Detection Limit: 1 ppm1 ppm - Measurement Range: 2000 ppm10000 ppm

Which substances does Fresenius Umwelttechnik measure in the Oxides category?

Fresenius Umwelttechnik measures the following Oxides: • Ethylene Oxide (C₂H₄O) - Detection Limit: 0 ppm - Measurement Range: 100 ppm (0.183 g/m³) • Carbon Monoxide (CO) - Detection Limit: 0 ppm - Measurement Range: 10000 ppm • Sulfur Dioxide (SO₂) - Detection Limit: 4 ppm (10 mg/m³) - Measurement Range: 2000 ppm (5 g/m³) • Nitrogen Dioxide (NO₂) - Detection Limit: 3 ppm (6 mg/m³) - Measurement Range: 200 ppm (0.382 g/m³) • Nitric Oxide (NO) - Detection Limit: 3.2 ppm (4 mg/m³) - Measurement Range: 12000 ppm (15 g/m³) • Nitrogen Monoxide (NO) - Detection Limit: 30 ppm (40 mg/m³) - Measurement Range: 5000 ppm (6.23 g/m³)

Which substances does Fresenius Umwelttechnik measure in the Binary Gases category?

Fresenius Umwelttechnik measures the following Binary Gases: • Chlor (Cl₂) - Detection Limit: 0.0001 Vol.-% - Measurement Range: 0.025 Vol.-% • Oxygen (O₂) - Detection Limit: 0.0005 Vol.-% - Measurement Range: 30 Vol.-% • Wasserstoff (H₂) - Detection Limit: 0.001 Vol.-% - Measurement Range: 1 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Ammonia category?

Fresenius Umwelttechnik measures the following Ammonia: • Ammonia (NH₃) - Detection Limit: 0 ppm - Measurement Range: 5000 ppm (3.53 g/m³) • Ammonia (NH₃) - Detection Limit: 1.4 ppm (1 mg/m³) - Measurement Range: 120000 ppm (86 g/m³) • Ammonia in Nitrogen (NH₃) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-% • Ammonia in Hydrogen (NH₃) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Sulfur Hexafluoride category?

Fresenius Umwelttechnik measures the following Sulfur Hexafluoride: • Sulfur Hexafluoride in Nitrogen / Air (SF₆) - Detection Limit: 0 Vol.-% - Measurement Range: 100 Vol.-%

Which substances does Fresenius Umwelttechnik measure in the Fluorocarbons / Chlorofluorocarbons category?

Fresenius Umwelttechnik measures the following Fluorocarbons / Chlorofluorocarbons: • 2,2,2,3-Tetrafluoropropanol (TFP) (C₃H₄F₄O) - Detection Limit: 0.8 ppm (4 mg/m³) - Measurement Range: 5500 ppm (30 g/m³) • Decafluoropentane (Vertrel) (C₅F₁₀) - Detection Limit: 0.2 ppm (2 mg/m³) - Measurement Range: 1900 ppm (20 g/m³) • Perfluoropentane (C₅F₁₂) - Detection Limit: 0.2 ppm (2 mg/m³) - Measurement Range: 1250 ppm (15 g/m³) • R11 Trichlorofluoromethane (CCl₃F) - Detection Limit: 0.1 ppm (0.5 mg/m³)0.2 ppm (1.0 mg/m³)0.4 ppm (2.0 mg/m³) - Measurement Range: 17.5 ppm (0.1 g/m³)350 ppm (2 g/m³)7000 ppm (40 g/m³) • R113 1,1,2-Trichloro-1,2,2-Trifluoroethane (C₂Cl₃F₃) - Detection Limit: 1.0 ppm (5 mg/m³) - Measurement Range: 3800 ppm (30 g/m³) • R114 Dichlorotetrafluoroethane (C₂Cl₂F₄) - Detection Limit: 1.0 ppm (5 mg/m³) - Measurement Range: 4200 ppm (30 g/m³) • R12 Dichlorodifluoromethane (CCl₂F₂) - Detection Limit: 0.1 ppm (0.5 mg/m³)0.2 ppm (1.0 mg/m³)0.4 ppm (2.0 mg/m³) - Measurement Range: 19.9 ppm (0.1 g/m³)400 ppm (2 g/m³)8000 ppm (40 g/m³) • R123 2,2-Dichloro-1,1,1-Trifluoroethane (C₂HCl₂F₃) - Detection Limit: 1.0 ppm (5 mg/m³) - Measurement Range: 4700 ppm (30 g/m³) • R124 2-Chloro-1,1,1,2-Tetrafluoroethane (C₂HClF₄) - Detection Limit: 1.0 ppm (5 mg/m³) - Measurement Range: 5300 ppm (30 g/m³) • R134a Tetrafluoroethane (C₂H₂F₄) - Detection Limit: 0.1 ppm (0.5 mg/m³)0.2 ppm (1.0 mg/m³)0.4 ppm (2.0 mg/m³) - Measurement Range: 23.5 ppm (0.1 g/m³)500 ppm (2 g/m³)9000 ppm (40 g/m³) • R141b 1,1-Dichloro-1-Fluoroethane (C₂H₃Cl₂F) - Detection Limit: 0.1 ppm (0.5 mg/m³)0.2 ppm (1.0 mg/m³)0.4 ppm (2.0 mg/m³) - Measurement Range: 20.5 ppm (0.1 g/m³)400 ppm (2 g/m³)8000 ppm (40 g/m³) • R22 Chlorodifluoromethane (CHClF₂) - Detection Limit: 0.6 ppm (2 mg/m³) - Measurement Range: 4200 ppm (15 g/m³) • R23 Trifluoromethane (CHF₃) - Detection Limit: 0.4 ppm (1 mg/m³) - Measurement Range: 6900 ppm (20 g/m³) • R245 1,1,1,3,1-Pentafluoropropane (C₃HF₅) - Detection Limit: 0.7 ppm (4 mg/m³) - Measurement Range: 3000 ppm (20 g/m³) • Sulfur Hexafluoride (SF₆) - Detection Limit: 0.5 ppm (2 mg/m³) - Measurement Range: 1000 ppm (6 g/m³) • Nitrogen Trifluoride (NF₃) - Detection Limit: 2.5 ppm (7.5 mg/m³) - Measurement Range: 10000 ppm (30 g/m³)

Substances

Substances for Gas Analysis

We can monitor these gases for you (even more on request)

Measurable Substances - All Categories

Gas analysis using NDIR Sensor

Substance

Formula

Detection Limit Min.

Measurement Range Max.

1,2-Dichlorobenzene

C₆H₄Cl₂

1.0 ppm (5 mg/m³)

8000 ppm (50 g/m³)

1,3-Butadiene

C₄H₆

2.2 ppm (5 mg/m³)

200 ppm (0.45 g/m³)

2,2,2,3-Tetrafluoropropanol (TFP)

C₃H₄F₄O

0.8 ppm (4 mg/m³)

5500 ppm (30 g/m³)

Acetone

C₃H₆O

0.8 ppm (2 mg/m³)

17000 ppm (40 g/m³)

Ammonia

NH₃

1.4 ppm (1 mg/m³)

120000 ppm (86 g/m³)

Ascusol (2-Brompropan)

C₃H₇Br

1.0 ppm (5 mg/m³)

10000 ppm (50 g/m³)

Benzene

C₆H₆

1.5 ppm (5 mg/m³)

12000 ppm (40 g/m³)

Chloroethylene / Vinyl Chloride

C₂H₃Cl

2 mg/m³
5 mg/m³

5 g/m³
125 g/m³

Chloromethane

CH₃Cl

2.0 ppm (5 mg/m³)

1000 ppm (2 g/m³)

Clindry (mixture)

20 mg/m³

50 g/m³

Cyclopentane

C₅H₁₀

0.6 ppm (2 mg/m³)

17000 ppm (50 g/m³)

Decafluoropentane (Vertrel)

C₅F₁₀

0.2 ppm (2 mg/m³)

1900 ppm (20 g/m³)

Decamethylcyclopentasiloxane

C₁₀H₃₀O₅Si₅

0.1 ppm (1 mg/m³)

33000 ppm (50 g/m³)

Desflurane

C₃H₂OF₆

0.2 ppm (1 mg/m³)

300 ppm (2 g/m³)

Dichloromethane

CH₂Cl₂

0.5 ppm (2 mg/m³)

11000 ppm (40 g/m³)

Dimethyl sulfoxide (DMSO)

C₂H₆OS

6.0 ppm (20 mg/m³)

15500 ppm (50 g/m³)

Nitrous oxide

N₂O

0.5 ppm (1 mg/m³)

6000 ppm (11 g/m³)

ENSOLV (1-Bromopropane)

C₃H₇Br

2.0 ppm (10 mg/m³)

10000 ppm (40 g/m³)

Enflurane

C₃H₂ClF₅O

0.4 ppm (3 mg/m³)

1000 ppm (70 g/m³)

Ethanol

C₂H₅OH

1.0 ppm (2 mg/m³)

21000 ppm (40 g/m³)

Ethyl acetate

H₃COOC₂H₅

1.1 ppm (4 mg/m³)

850 ppm (3 g/m³)

Moisture

H₂O

150.0 ppm (100 mg/m³)

400000 ppm (300 g/m³)

Formaldehyde

CH₂O

3 ppm (4 mg/m³)

160 ppm (0.2 g/m³)

HFE-71DE (Gemisch)

Various

0.2 ppm (5 mg/m³)

1600 ppm (40 g/m³)

Halothane

C₂HBrClF₃

0.5 ppm (4 mg/m³)

1200 ppm (10 g/m³)

Isoflurane

C₃H₂OClF₆

0.2 ppm (1 mg/m³)

2600 ppm (20 g/m³)

Iso-octane

C₈H₁₈

0.4 ppm (2 mg/m³)

10500 ppm (50 g/m³)

Isopropyl alcohol (IPA)

C₃H₇OH

0.8 ppm (2 mg/m³)

16000 ppm (40 g/m³)

Carbon dioxide

CO₂

0.01 Vol.-%

100 Vol.-%

Carbon monoxide

0.1 ppm (4 mg/m³)

10000 ppm (12 g/m³)

Methane

CH₄

0.01 Vol.-%

100 Vol.-%

Methanol

CH₃OH

1.5 ppm (2 mg/m³)

30000 ppm (40 g/m³)

Methane Slip

CH₂

8 ppm (5 mg/m³)

225 ppm (0.15 g/m³)

Naphthalene

C₁₀H₈

1.0 ppm (7 mg/m³)

200 ppm (1 g/m³)

Perfluoropentane

C₅F₁₂

0.2 ppm (2 mg/m³)

1250 ppm (15 g/m³)

Phosgene

CCl₂O

0.2 ppm (1 mg/m³)

250 ppm (1 g/m³)

Pyridine

C₅H₅N

3.0 ppm (10 mg/m³)

15000 ppm (50 g/m³)

R11 Trichlorofluoromethane

CCl₃F

0.1 ppm (0.5 mg/m³)
0.2 ppm (1.0 mg/m³)
0.4 ppm (2.0 mg/m³)

17.5 ppm (0.1 g/m³)
350 ppm (2 g/m³)
7000 ppm (40 g/m³)

R113 1,1,2-Trichloro-1,2,2-Trifluoroethane

C₂Cl₃F₃

1.0 ppm (5 mg/m³)

3800 ppm (30 g/m³)

R114 Dichlorotetrafluoroethane

C₂Cl₂F₄

1.0 ppm (5 mg/m³)

4200 ppm (30 g/m³)

R12 Dichlorodifluoromethane

CCl₂F₂

0.1 ppm (0.5 mg/m³)
0.2 ppm (1.0 mg/m³)
0.4 ppm (2.0 mg/m³)

19.9 ppm (0.1 g/m³)
400 ppm (2 g/m³)
8000 ppm (40 g/m³)

R123 2,2-Dichloro-1,1,1-Trifluoroethane

C₂HCl₂F₃

1.0 ppm (5 mg/m³)

4700 ppm (30 g/m³)

R124 2-Chloro-1,1,1,2-Tetrafluoroethane

C₂HClF₄

1.0 ppm (5 mg/m³)

5300 ppm (30 g/m³)

R134a Tetrafluoroethane

C₂H₂F₄

0.1 ppm (0.5 mg/m³)
0.2 ppm (1.0 mg/m³)
0.4 ppm (2.0 mg/m³)

23.5 ppm (0.1 g/m³)
500 ppm (2 g/m³)
9000 ppm (40 g/m³)

R141b 1,1-Dichloro-1-Fluoroethane

C₂H₃Cl₂F

0.1 ppm (0.5 mg/m³)
0.2 ppm (1.0 mg/m³)
0.4 ppm (2.0 mg/m³)

20.5 ppm (0.1 g/m³)
400 ppm (2 g/m³)
8000 ppm (40 g/m³)

R22 Chlorodifluoromethane

CHClF₂

0.6 ppm (2 mg/m³)

4200 ppm (15 g/m³)

R23 Trifluoromethane

CHF₃

0.4 ppm (1 mg/m³)

6900 ppm (20 g/m³)

R245 1,1,1,3,1-Pentafluoropropane

C₃HF₅

0.7 ppm (4 mg/m³)

3000 ppm (20 g/m³)

R401A (15 % 1,1-difluoroethane / 33 % 2-chloro-1,1,2-tetrafluoroethane / 52 % chlorodifluoromethane)

Various

1.2 ppm (5 mg/m³)

7300 ppm (30 g/m³)

R401B (13 % 1,1-difluoroethane / 27 % 2-chloro-1,1,2-tetrafluoroethane / 60 % chlorodifluoromethane)

Various

1.3 ppm (5 mg/m³)

7400 ppm (30 g/m³)

R402A (38 % chlorodifluoromethane / 60 % pentafluoroethane / 2 % propane)

Various

2.3 ppm (10 mg/m³)

6800 ppm (30 g/m³)

R402B (60 % chlorodifluoromethane / 38 % pentafluoroethane / 2 % propane)

Various

2.5 ppm (10 mg/m³)

7300 ppm (30 g/m³)

R403B (56 % chlorodifluoromethane / 39 % octafluoropropane / 5 % propane)

Various

2.0 ppm (10 mg/m³)

5800 ppm (30 g/m³)

R404A (44 % pentafluoroethane / 4 % 1,1,1,2-tetrafluoroethane / 52 % 1,1,1-trifluoroethane)

Various

2.4 ppm (10 mg/m³)

7200 ppm (30 g/m³)

R407c Mixture of R32 Difluoromethane 23%, R125 Pentafluoroethane 25%, R134a Tetrafluoroethane 52%

Various

1.3 ppm (5 mg/m³)

7600 ppm (30 g/m³)

R410a Mixture of R32 Difluoromethane 50%, R125 Pentafluoroethane 50%

Various

2.8 ppm (10 mg/m³)

8400 ppm (30 g/m³)

R413a Mixture of R134a Tetrafluoroethane 88%, R218 Octafluoropropane 9%, R600a Isobutane 3%

Various

1.1 ppm (5 mg/m³)

6700 ppm (30 g/m³)

R507a Mixture of R125 Pentafluoroethane 50%, R143a Tetrafluoroethane 50%

Various

0.5 ppm (2 mg/m³)

7500 ppm (30 g/m³)

R508b Mixture of R23 Trifluoromethane 46%, R116 Hexafluoroethene 54%

Gemisch

2.6 ppm (10 mg/m³)

6800 ppm (30 g/m³)

Sulfur dioxide

SO₂

2.0 ppm

5000 ppm

Sulfur Hexafluoride

SF₆

0.5 ppm (2 mg/m³)

1000 ppm (6 g/m³)

Sevoflurane

C₄H₃OF₇

0.4 ppm (5 mg/m³)

6000 ppm (50 g/m³)

Nitrogen dioxide

NO₂

2.1 ppm (4 mg/m³)

8000 ppm (15 g/m³)

Nitric Oxide

3.2 ppm (4 mg/m³)

12000 ppm (15 g/m³)

Nitrogen Trifluoride

NF₃

2.5 ppm (7.5 mg/m³)

10000 ppm (30 g/m³)

Styrene

C₈H₈

1.0 ppm (5 mg/m³)

6000 ppm (25 g/m³)

Total BTX aromatics

C₆H₆/C₇H₈/C₈H₁₀

1.5 ppm (5 mg/m³)

12000 ppm (40 g/m³)

Carbon Tetrachloride

CCl₄

0.8 ppm (2 mg/m³)

6000 ppm (40 g/m³)

Tetrachloroethylene

C₂Cl₄

0.3 ppm (2 mg/m³)

6000 ppm (40 g/m³)

Toluene

C₇H₈

1.5 ppm (5 mg/m³)

12000 ppm (40 g/m³)

Trichloroethylene

C₂HCl₃

0.3 ppm (2 mg/m³)

7500 ppm (40 g/m³)

Chloroform

CHCl₃

1.0 ppm (2 mg/m³)

8000 ppm (40 g/m³)

cis-1,2-Dichloroethene

C₂H₂Cl₂

2.0 ppm (10 mg/m³)

10000 ppm (40 g/m³)

m-Xylene / o-Xylene / p-Xylene

C₈H₁₀

1.5 ppm (5 mg/m³)

12000 ppm (40 g/m³)

n-Butan

C₄H₁₀

0.8 ppm (2 mg/m³)

21000 ppm (50 g/m³)

n-Butyl acetate

C₆H₁₂O₂

0.4 ppm (2 mg/m³)

8300 ppm (40 g/m³)

n-Heptane

C₇H₁₆

0.9 ppm (2 mg/m³)

12000 ppm (50 g/m³)

n-Hexane

C₆H₁₄

0.6 ppm (2 mg/m³)

14000 ppm (50 g/m³)

n-Pentane

C₅H₁₂

0.6 ppm (2 mg/m³)

17000 ppm (50 g/m³)

trans-1,2-Dichloroethene

C₂H₂Cl₂

1.2 ppm (2 mg/m³)

10000 ppm (40 g/m³)

Gas analysis using Electrochemical Sensor

Substance

Formula

Detection Limit Min.

Measurement Range Max.

Ammonia

NH₃

0 ppm

5000 ppm (3.53 g/m³)

Arsine

AsH₃

0.03 ppm
0.03 ppm

0.5 ppm
1.0 ppm

Chlor

Cl₂

0.0001 Vol.-%

0.025 Vol.-%

Hydrogen Chloride

HCl

0 ppm

100 ppm (0.150 g/m³)

Hydrogen Cyanide

HCN

0 ppm
0 ppm

50 ppm
150 ppm

Diborane

B₂H₆

0.03 ppm (0.03 mg/m³)

1 ppm (0.0012 g/m³)

Ethylene Oxide

C₂H₄O

0 ppm

100 ppm (0.183 g/m³)

Carbon Monoxide

0 ppm

10000 ppm

Phosphine

PH₃

40 ppm (56 mg/m³)

2000 ppm (2.83 g/m³)

Ozone

O₃

0 ppm (0 mg/m³)
0 ppm (0 mg/m³)

1 ppm (0.002 g/m³)
5 ppm (0.009 g/m³)

Oxygen

O₂

0.0005 Vol.-%

30 Vol.-%

Sulfur Dioxide

SO₂

4 ppm (10 mg/m³)

2000 ppm (5 g/m³)

Hydrogen Sulfide

H₂S

1 ppm
1 ppm

2000 ppm
10000 ppm

Nitrogen Dioxide

NO₂

3 ppm (6 mg/m³)

200 ppm (0.382 g/m³)

Nitrogen Monoxide

30 ppm (40 mg/m³)

5000 ppm (6.23 g/m³)

Wasserstoff

H₂

0.001 Vol.-%

1 Vol.-%

Gas analysis using Thermal Conductivity Detector (TCD)

Substance	Formula	Detection Limit Min.	Measurement Range Max.
Ammonia in Nitrogen	NH₃	0 Vol.-%	100 Vol.-%
Ammonia in Hydrogen	NH₃	0 Vol.-%	100 Vol.-%
Argon in Carbon Dioxide	Ar	40 Vol.-%	100 Vol.-%
Argon in Oxygen	Ar	0 Vol.-%	100 Vol.-%
Argon in Nitrogen / Air	Ar	0 Vol.-%	100 Vol.-%
Helium in Argon	He	0 Vol.-%	100 Vol.-%
Helium in Nitrogen / Air	He	0 Vol.-%	100 Vol.-%
Carbon Dioxide in Argon	CO₂	0 Vol.-%	100 Vol.-%
Carbon Dioxide in Nitrogen / Air	CO₂	0 Vol.-%	100 Vol.-%
Carbon Monoxide in Hydrogen	CO	0 Vol.-%	100 Vol.-%
Methane in Argon	CH₄	0 Vol.-%	100 Vol.-%
Methane in Nitrogen / Air	CH₄	0 Vol.-%	100 Vol.-%
Oxygen in Argon	O₂	0 Vol.-%	100 Vol.-%
Oxygen in Nitrogen	O₂	0 Vol.-%	100 Vol.-%
Sulfur Hexafluoride in Nitrogen / Air	SF₆	0 Vol.-%	100 Vol.-%
Stickstoff in Argon	N₂	0 Vol.-%	100 Vol.-%
Stickstoff in Kohlenstoffdioxid	N₂	0 Vol.-%	100 Vol.-%
Stickstoff in Wasserstoff	N₂	0 Vol.-%	100 Vol.-%
Hydrogen in Argon	H₂	0 Vol.-%	100 Vol.-%
Hydrogen in Helium	H₂	20 Vol.-%	100 Vol.-%
Hydrogen in Carbon Dioxide	H₂	0 Vol.-%	100 Vol.-%
Hydrogen in Methane	H₂	0 Vol.-%	100 Vol.-%
Hydrogen in Nitrogen / Air	H₂	0 Vol.-%	100 Vol.-%

Gas analysis using Zirconium Oxide Sensor

Substance	Formula	Detection Limit Min.	Measurement Range Max.
Oxygen	O₂	0 Vol.-% 0 Vol.-% 5 Vol.-%	5 Vol.-% 25 Vol.-% 95 Vol.-%

Gas analysis using Paramagnetic Sensor

Substance	Formula	Detection Limit Min.	Measurement Range Max.
Oxygen	O₂	0.1 Vol.-% 0.1 Vol.-% 0.1 Vol.-% 0.1 Vol.-%	5 Vol.-% 25 Vol.-% 50 Vol.-% 100 Vol.-%

Professional Gas Analysis: Reliable, Scalable, and Low-Maintenance

Our gas analyzers (also referred to as sample gas analyzers) deliver real-time, online gas measurements – stable, scalable, and low-maintenance.
The table above covers more than 100 gases and mixtures, with full search and filter options (name, formula, category) as well as details on detection limits and measurement ranges.

Depending on your application, we combine NDIR, TDLAS, electrochemical sensors, paramagnetic measurement, zirconium dioxide, thermal conductivity and many other sensor technologies.
Our analyzers and gas coolers are ideal for process gases, biogas, flue gas/emission monitoring, quality assurance, and research.

Your benefits:

Reliable gas analysis with user-friendly analyzers
Precise, real-time data for process control and reporting
Full integration with control systems

Whether it’s H₂, He, CH₄, CO₂, CO, NH₃, SO₂ or complex VOC matrices – we configure the right analyzer for your process and safety requirements.

The table illustrates just part of our capabilities. Additional substances can be monitored upon request.

Fresenius Umwelttechnik

Substances

Substances for Gas Analysis

Categories

Measurable Substances - All Categories

Gas analysis using NDIR Sensor

Gas analysis using Electrochemical Sensor

Gas analysis using Thermal Conductivity Detector (TCD)

Gas analysis using Zirconium Oxide Sensor

Gas analysis using Paramagnetic Sensor

Connect with us!

Successful projects start with just one conversation.

Which gas would you like to monitor?

Greet us with a simple