Name: GX-6100 Multigas Detector
Brand: RKI Instruments

Overview

The GX-6100 is a powerful hand-held instrument capable of simultaneously monitoring up to 6 gases. In addition to the standard 4 confined space gases which include combustibles, O2, CO, & H2S, the GX-6100 has 2 additional smart channels that accept PID, PPM, IR or super toxic sensors. The updated GX-6100 can measure combustible gases in PPM range and %volume in the same monitor.

Equipped with a strong internal sample pump, a man-down alarm, a panic alarm, an LED flashlight, and large auto rotating LCD display, the GX-6100 can operate as a single gas PID unit or a multifunctional tool utilizing all 6 channels. The GX-6100 with a PID sensor will come equipped with a library of over 600 VOC gases to choose from as standard. Choosing from the library is easy with a personalized favorites list of 30 commonly used VOC’s as well as a list of 8 of the most recently used VOC’s. A benzene-specific version is available using a pre-filter tube for detecting low levels of benzene. Four PID sensors are available, 10.0 eV, 10.6 eV (low or high range), and 11.7 eV. Any combination of two PID sensors can be installed. GX-6100 PID sensors are also resistant to humidity.

The GX-6100 has a rugged design built for the nastiest environments. It is equipped with a removable impact-resistant rubber boot and a dust and water resistant enclosure with an IP-67 rating. With 5 bright LED lights on 3 sides of the instrument, alarms are easily seen from a variety of perspectives. With vibration and loud audible alarm, GX-6100 will easily alert users when needed.

Sensors available: LEL, CL2, CO, CO2, HCN, H2S, NH3, NO2, PH3, SO2, Ammonia, Chlorine, Hydrogen Cyanide, Nitrogen Dioxide, Phosphine, Sulfur Dioxide, Carbon Dioxide, Methane, Hydrocarbon, Hydrogen Sulfide, Carbon Monoxide, Oxygen, % volume measurement of combustibles, and VOC (volatile organic compounds).

6 Operating Modes

Normal Mode
Barhole Mode
Inert Mode
Leak Check
Snap Log Mode
Benzene Specific

Applications

Confined Space Entry
Hazmat Response Teams
Arson Investigation
Remediation Site
Perimeter Monitoring
Leak Detection
Landfill Monitoring
Winery Tank Entry

Specifications

Smart Sensors NDIR

Gases & Detectable Ranges
Gas		Detection Range	Reading Increment	Alarm Set Points	Accuracy
PID Sensors
10.6 Lamp	600 VOC’s	0 – 40,000 ppb	1 ppb: (< 5000 ppb) 10 ppb: (> 5,000 ppb)	A1: 5,000 ppb A2: 10,000 ppb A3: 10,000 ppb	± 10% of reading, ± 1 digit
		0 – 4,000 ppm	0.1 ppm: (< 600 ppm) 1 ppm: (> 600 ppm)	A1: 400 ppm A2: 1,000 ppm A3: 1,000 ppm
10.0 Lamp	Benzene Specific	0 – 50 ppm	0.01 ppm (0 ~ 10 ppm) 0.1 ppm (10 ~ 50 ppm)	No Alarms
	300 VOC’s	0 – 100 ppm	0.01 ppm (0 ~ 10 ppm) 0.1 ppm (10 ~ 100 ppm)	A1: 5 ppm A2: 10 ppm A3: 10 ppm
11.7	High Voltage Lamp	0 – 1,000 ppm	0.1 ppm (0-100 ppm) 1 ppm (100-1,000 ppm)	A1: 400 ppm A2: 1,000 ppm A3: 1,000 ppm
Electro Chemical R Sensor
Oxygen (O2)		0 – 40.0% Vol.	0.1% Vol.	A1: 19.5 Vol. A2: 18 Vol. A3: 23.5 Vol.	± 0.5% O2
Carbon Monoxide (CO)		0 – 2,000 ppm	1 ppm	A1: 25 ppm A2: 50 ppm A3: 1,200 ppm TWA 25 ppm STEL 200 ppm	± 5% of reading or ± 5 ppm
Hydrogen Sulfide (H2S)		0 – 200.0 ppm	0.5 ppm	A1: 5.0 ppm A2: 30.0 ppm A3: 100.0 ppm TWA 1.0 ppm STEL 5.0 ppm	± 5% of reading or ± 2 ppm
Toxics (EC Sensors)
Ammonia (NH3)		0 – 400.0 ppm	0.5 ppm	A1: 25 ppm A2: 50 ppm A3: 50 ppm	± 10% of reading or ± 5% of full scale
Chlorine (Cl2)		0 – 10.00 ppm	0.05 ppm	A1: 0.5 ppm A2: 1.0 ppm A3: 1.0 ppm
Hydrogen Cyanide (HCN)		0 – 15.0 ppm	0.1 ppm	A1: 5 ppm A2: 10 ppm A3: 10 ppm
Nitrogen Dioxide (NO2)		0 – 20.00 ppm	0.05 ppm	A1: 3 ppm A2: 6 ppm A3: 6 ppm
Phosphine (PH3)		0 – 20.00 ppm	0.01 ppm	A1: 0.30 ppm A2: 1.00 ppm A3: 1.00 ppm
Sulfur Dioxide (SO2)		0 – 99.90 ppm	0.05 ppm	A1: 2 ppm A2: 5 ppm A3: 5 ppm
Smart Sensors
NDIR Smart Sensors
Carbon Dioxide (CO2) NDIR		0 – 10,000 ppm	20 ppm	A1: 5,000 ppm TWA 5,000 ppm	± 5% of reading or ± 2% of full scale
		0 – 10.00% Vol.	0.02%	A1: 0.50% Vol A2: 3.00% Vol A3: 3.00% Vol STEL 3.00% Vol TWA 0.50% Vol
Methane NDIR		0 – 100% LEL 0 – 100% Vol.	1% LEL/ 0.5% Vol	A1: 10% LEL A2: 50% LEL A3: 50% LEL
Isobutane NDIR		0 – 100% LEL 0 – 30% Vol.
Smart Sensor (hot-wire semiconductor type)
Methane		0 – 5,000 ppm	10 ppm	N/A
Isobutane		0 – 2,000 ppm
R Sensor (new ceramic type)
Hydrocarbons (CH4, std)		0 – 100% LEL	1% LEL	A1: 10%LEL A2: 25%LEL A3: 50%LEL	± 5% of reading or ± 2% LEL
TC Sensor (thermal conductivity)
Methane CH4		0 – 100 vol%	1% vol%	N/A

Common Specifications
Alarm Types	Gas alarm	Man-down	Trouble
	Low and high adjustable	1st – self reset 2nd – latching	Low flow Sensor connection Low battery Circuit error Calibration failure
Sample Method	Sample draw pump, flow rate 0.45 LPM, 100 foot sample range
Display	Digital LCD, autobacklight, peak bar display, auto display rotation, and customize order of gases
Communication	Bluetooth, IrDA
Audible Alarm	95 dB at 1 ft.
Languages	English, Japanese, French, Spanish, Portuguese, Italian, German, Russian, Korean, Chinese (simplified), Chinese (traditional), Vietnamese, Slovak, Czech, Turkish, Polish
Continuous Operation	28 hours on Lithium-ion battery pack. Complete recharge in 6 hours. 8 hours Alkaline battery pack (3 AA size in each pack)
Operating Temp. & Humidity	-4°F to 122°F (-20°C ~ +50℃), 0- 95% RH non condensing
Dimensions	2.6” W x 7.9” H x 2.2” D (H200 x W68 x D56 mm) 17.6 ounce (500g) with lithium battery pack16 ounces with alkaline batteries (450g)
Case Material	Dust and water resistant with IP-67 approval (exclude sample hose and probe)
Safety Design / Approvals	Explosion proof: IECEx , ATEX , TIIS , cCSAus (pending) Explosion class :Ex ia IIC T4 Ga Others: CE Marking
Standard Features	2 Smart sensors slots auto recognize sensor changes Panic alarm and man down alarm Library of over 600 VOC’s User defined VOC list. Up to 30 frequently used Recent VOC list for last 8 selected gases Pump and circuit status indicators User & station ID selection menu Datalogging (interval, alarm trend, station and user ID) Snap logging – on demand data logging Demand zero / Auto zero BUMP and CAL expiration alarm Flashlight LEL sensor protection mode
Standard Accessories	• Rubber boot • Belt clip • Hand strap • Tapper nozzle• Probe with hydrophobic & dust filter 3’ teflon lined hose• Benzene pre-filter tubes and holder (benzene versions)
Optional Accessories	• SDM-6100 calibration station • Bundles with instrument carrying case and accessories • Flexible probes • Up to 100 foot sample hoses • Filter set • IrDA cable
Warranty	Three years material (including R sensors) and workmanship. 2 years for IR sensors and ESS (except Cl2), One year for TE, Cl2 and PID sensors (Two months for 11.7 eV lamp)

PID Sensor Response Factors for VOCs

Photoionization detectors are calibrated using isobutylene, but PID is a broadband VOC detection technique, with a sensitivity that differs for each VOC. If you know what VOC you are detecting, then the table below will allow you to calculate the concentration for your specific VOC. Remember, these are approximate values, so for best accuracy you should calibrate with the relevant VOC. Multiply the indicated concentration by the appropriate Relative Response value to provide an estimate of actual VOC concentration. Download a PDF of PID Response Chart

Chemical Name	Formula	CAS no.	lE, eV	11.7 eV	10.6 eV	10.0 eV
Acenaphthalene	C12H8	208-96-8	8.12		0.7
Acenaphthene	C12H10	83-32-9	7.80		0.7
Acetaldehyde	C2H4O	75-07-0	10.23	2	6	ZR
Acetamide	C2H5NO	60-35-5	9.69	NA	2	NA
Acetic acid	C2H4O2	64-19-7	10.66	4	28	ZR
Acetic anhydride	C4H6O3	108-24-7	10.14	2	4	NA
Acetoin	C4H8O2	513-86-0	~9.8	1.6	1.4	2.0
Acetone	C3H6O	67-64-1	9.69	1.7	1.17	1.20
Acetone cyanohydrin	C4H7NO	75-86-5	11.09	1	ZR	ZR
Acetonitrile	CH3CN	75-05-8	12.20	ZR	ZR	ZR
Acetophenone	C8H8O	98-86-2	9.29	0.8	0.8	0.8
Acetyl bromide	C2H3BrO	506-96-7	10.24	1.5	8.0	ZR
Acetylene	C2H2	74-86-2	11.40	2	ZR	ZR
Acetylglycine, N-	C4H7NO3	543-24-8	9.40	NA	NA	NA
Acrolein	C3H4O	107-02-8	10.22	1.2	3.2	NA
Acrylic acid	C3H4O2	79-10-7	10.60	3	21	ZR
Acrylonitrile	C3H3N	107-13-1	10.91	1.6	ZR	ZR
Alkanes, n-, C6+	CnH2n+2	N/A	~10	NA	1.2	NA
Allyl acetoacetate	C7H10O3	1118-84-9	~10	NA	1.5	ZR
Allyl alcohol	C3H6O	107-18-6	9.63	1.1	2.3	4
Allyl bromide	C3H5Br	106-95-6	9.96	NA	3	NA
Allyl chloride	C3H5Cl	107-05-1	10.05	0.9	3.3	16
Allyl glycidyl ether	C6H10O2	106-92-3	~10	NA	0.8	NA
Allyl propyl disulfide	C6H12S2	2179-59-1	~8.5	NA	0.4	NA
Allylamine	C3H7N	107-11-9	8.80	NA	0.8	NA
Ammonia	NH3	7664-41-7	10.18	5.7	8.5	NA
Amyl acetate	C7H14O2	628-63-7	9.90	0.64	1.8	9
Amyl alcohol	C5H12O	71-41-0	10.00	0.75	2.6	10
Amyl alcohol, tert-	C5H12O	75-85-4	9.80	1.01	1.5	2.8
Amyl salicylate	C12H16O3	2050-88-0	~9	NA	4	NA
Anethole	C10H12O	104-46-1	~9	NA	0.4	NA
Aniline	C6H7N	62-53-3	7.70	0.7	1.0	0.8
Anisole	C7H8O	100-66-3	8.21	0.57	0.59	0.59
Anisyl aldehyde	C8H8O2	123-11-5	~9	NA	0.4	NA
Argon	Ar	7440-37-1	15.76	ZR	ZR	NA
Aromatic hydrocarbons, C8	H8H10	90989-38-1	~8.7		0.55	0.5
Asphalt, petroleum fumes		8052-42-4	~9	NA	1	NA
Benzaldehyde	C7H6O	100-52-7	9.49	0.9	0.7	0.9
Benzene	C6H6	71-43-2	9.24	0.53	0.50	0.54
Benzenethiol	C7H7S	100-53-8	8.50	0.6	0.8	0.8
Benzoic acid	C7H6O2	65-85-0	9.30	NA	0.7	NA
Benzonitrile	C7H5N	100-47-0	9.62	0.8	0.5	0.7
Benzoquinone, o-	C6H4O2	583-63-1	9.30	NA	1	NA
Benzoquinone, p-	C6H4O2	106-51-4	10.01	NA	1	NA
Benzoyl bromide	C7H5BrO	618-32-6	9.65	NA	2	NA
Benzyl 2-phenylacetate	C15H14O2	102-16-9	~9	NA	0.5	NA
Benzyl acetate	C9H10O2	140-11-4	~9	NA	0.6	NA
Benzyl alcohol	C7H8O	100-51-6	8.26	1.3	1.0	1.6
Benzyl chloride	C7H7Cl	100-44-7	9.14	0.58	0.7	0.7
Benzyl formate	C8H8O2	104-57-4	9.32	0.66	0.8	NA
Benzyl isobutyrate	C11H14O2	103-28-6	~9	NA	0.5	NA
Benzyl nitrile	C8H7N	140-29-4	9.39	1.4	1.4	1.5
Benzyl propionate	C10H12O2	122-63-4	~9	NA	0.8	NA
Benzylamine	C7H9N	100-46-9	7.56	NA	0.6	NA
Biphenyl	C12H10	92-52-4	8.23	NA	0.4	0.6
Borneol	C10H18O	507-70-0	~9	NA	0.8	NA
Boron trifluoride	BF3	7637-07-02	15.50	ZR	ZR	ZR
Bromine	Br2	7726-95-6	10.55	0.74	15	ZR
Bromine pentafluoride	BrF5	7789-30-2	13.17	ZR	ZR	ZR
Bromo-2,2-dimethylpropane, 1-	C5H11Br	630-17-1	10.04	NA	2	NA
Bromo-2-chloroethane, 1-	C2H4BrCl	107-04-0	10.57	0.44	3	ZR
Bromo-2-methylpentane, 1-	C6H13Br	25346-33-2	10.09	NA	2	NA
Bromoacetone	C3H5BrO	598-31-2	9.73	NA	1.0	NA
Bromoacetylene	C2HBr	593-61-3	10.31	NA	4	ZR
Bromobenzene	C6H5Br	108-86-1	8.98	0.34	0.32	0.32
Bromobutane, 1-	C4H9Br	109-65-9	10.13	0.6	1.6	14
Bromobutane, 2-	C4H9Br	78-76-2	10.01	0.62	0.97	1.6
Bromochloromethane	CH2ClBr	74-97-5	10.77	1	ZR	ZR
Bromocyclohexane	C6H11Br	108-85-0	9.87	NA	2	NA
Bromoethane	C2H5Br	74-96-4	10.29	0.79	1.6	ZR
Bromoethanol, 2-	C2H5BrO	540-51-2	10.00	NA	2	NA
Bromoethyl methyl ether, 2-	C3H7OBr	6482-24-2	10.00	2	2.5	NA
Bromofluoromethane	CH2FBr	373-52-4	~11	1	ZR	ZR
Bromoform	CHBr3	75-25-2	10.48	0.5	2.7	60
Bromopentane, 1-	C5H11Br	110-53-2	10.10	0.47	1.1	3.5
Bromopropane, 1-	C3H7Br	106-94-5	10.18	0.7	1.5	70
Bromopyridine, 3-	C5H4BrN	626-55-1	9.75	NA	2	NA
Bromopyridine, 4-	C5H4BrN	1120-87-2	9.94	NA	2	NA
Bromotrifluoromethane	CF3Br	75-63-8	11.78	NA	ZR	ZR
Bromotrimethylsilane	C3H9BrSi	2857-97-8	10.00	1.6	1.9	2.1
But-2-ynal	C4H4O	1119-19-3	10.20	NA	3	NA
But-3-ynal	C4H4O	52844-23-2	9.85	NA	1.5	NA
Butadiene diepoxide, 1,3-	C4H6O2	1464-53-5	10.00	1.2	4	NA
Butadiene, 1,2-	C4H6	590-19-2	9.23		1
Butadiene, 1,3-	C4H6	106-99-0	9.07	1.1	0.8	0.8
Butane, n-	C4H10	106-97-8	10.63	1.5	40	ZR
Butanediol, 2,3-	C4H10O2	513-85-9	10.26	5.3	5	15
Butanedione, 2,3-	C4H6O2	431-03-8	9.56	1.00	0.86	0.87
Butanoic acid	C4H8O2	107-92-6	10.17	0.5	4.3	30
Butanol, 1-	C4H10O	71-36-3	10.04	1	3.9	25
Butanol, 2-	C4H10O	78-92-2	10.10	1.2	3.0	8
Butanone oxime, 2-	C4H9NO	96-29-7	~9		1
Buten-3-ol, 1-	C4H8O	598-32-3	9.50	1.3	1.8	3
Butene nitrile, 3-	C4H5N	109-75-1	10.20	NA	3.0	NA
Butene, 1-	C4H8	106-98-9	9.58	NA	1.5	NA
Butene, 2-	C4H8	107-01-7	9.10	NA	1.3	NA
Butene, cis-2-	C4H8	590-18-1	9.13	NA	1.3	NA
Butene, trans-2-	C4H8	624-64-6	9.13	NA	1.3	NA
Butenoic acid, 3-	C4H6O2	107-93-7	9.75	4	2	9
Butoxyethanol, 2-	C6H14O2	111-76-2	8.68	0.8	1.3	2.3
Butoxyethoxyethanol	C8H18O3	112-34-5	~10	4.8	3	13
Butoxyethyl acetate, 2-	C8H16O3	112-07-2	~9.8	1.3	2	4
Butyl acetate	C6H12O2	123-86-4	9.91	0.8	2.5	12
Butyl acetate, sec-	C6H12O2	105-46-4	9.91	0.80	1.8	5.5
Butyl acrylate	C7H12O2	141-32-2	~9.6	0.6	1.3	7
Butyl butyrate	C8H16O2	109-21-7	~9.7	0.8	1.53	2.8
Butyl chloroformate	C5H9ClO2	592-34-7	~10.4	NA	3.2	ZR
Butyl cyclohexan-1-ol, 4-tert-	C10H20O	98-52-2	~8.8	NA	1.4	NA
Butyl cyclohexyl acetate, 2-tert-	C12H22O2	88-41-5	~10	NA	0.9	NA
Butyl ether, n-	C8H18O	142-96-1	9.28	0.42	0.82	1.10
Butyl glycidyl ether	C7H14O2	2426-08-06	~10	NA	2	NA
Butyl iodide	C4H9I	542-69-8	9.23	0.3	0.27	0.25
Butyl isocyanate	C5H9NO	111-36-4	10.14	NA	2.5	NA
Butyl lactate	C7H14O3	138-22-7	9.80	NA	2.5	NA
Butyl mercaptan, n-	C4H10S	109-79-5	9.15	0.50	0.8	0.8
Butyl mercaptan, tert-	C4H10S	75-66-1	9.03	0.59	0.62	0.62
Butyl methacrylate	C8H14O2	97-88-1	~9.5	0.9	1.2	1.7
Butyl propionate, n-	C7H14O2	590-01-2	~9.7	0.80	1.9	4
Butylamine, n-	C4H11N	109-73-9	8.71	2	1	10
Butylamine, sec-	C4H11N	513-49-5	8.70	5	0.9	30
Butylamine, tert-	C4H11N	75-64-9	8.64	1.1	1.2	1.5
Butylbenzene	C10H14	104-51-8	8.69	0.4	0.6	0.7
Butylbenzene, sec-	C10H14	135-98-8	8.68	NA	0.4	0.4
Butylbenzene, tert-	C10H14	98-06-6	8.69	NA	0.4	0.4
Butyldiglycol acetate	C10H20O4	124-17-4	~10	3	1.6	15
Butylene carbonate, 1,2-	C5H8O3	4437-85-8	~10.4	3.8	18	ZR
Butylphenol, o-sec-	C10H14O	89-72-5	7.80	NA	0.9	NA
Butyn-1-ol, 2-	C4H6O	764-01-2	9.78	0.6	0.6	0.6
Butyn-2-one	C4H4O	1423-60-5	10.17	NA	3	NA
Butyraldehyde	C4H8O	123-72-8	9.86	1.2	1.7	1.9
Butyrolactone, gamma-	C4H6O2	96-48-0	10.26	NA	15	NA
Butyryl chloride	C4H7ClO	141-75-3	~10.4	NA	3	ZR
Camphene	C10H16	565-00-4	8.86	0.46	0.35	0.6
Camphor	C10H16O	76-22-2	8.76	NA	0.4	NA
Carbitol acetate	C6H16O4	112-15-12	~9	1.0	1.6	3
Carbon dioxide	CO2	124-38-9	13.77	ZR	ZR	ZR
Carbon disulfide	CS2	75-15-0	10.08	0.3	1.4	1.3
Carbon monoxide	CO	630-08-0	14.01	ZR	ZR	ZR
Carbon suboxide	C3O2	504-64-3	10.60	NA	10	ZR
Carbon tetrabromide	CBr4	558-13-4	10.31	6	11	ZR
Carbon tetrachloride	CCl4	56-23-5	11.47	1.7	ZR	ZR
Carbonyl fluoride	COF2	353-50-4	13.02	ZR	ZR	ZR
Carbonyl sulfide	COS	463-58-1	11.18	0.4	ZR	ZR
Carene	C10H16	13466-78-9	8.40	0.3	0.4	0.37
Carvacrol	C10H14O	499-75-2	~9	NA	0.8	NA
Carvone, R-	C10H14O	6485-40-1	9.77	1.7	1.6	1.5
Caryophyllene	C15H24	13877-93-5	~9	NA	0.4	NA
Chloral hydrate	C2H3Cl3O2	302-17-0	~10	2.2	NA	ZR
Chloramine	ClH2N	10599-90-3	9.85	NA	2	NA
Chlorine	Cl2	7782-50-5	11.48	1	ZR	ZR
Chlorine dioxide	ClO2	10049-04-4	10.36	ZR	ZR	ZR
Chlorine trifluoride	ClF3	7790-91-2	12.65	NA	ZR	ZR
Chloro-1,1,1,2-tetrafluoroethane, 2-	C2HClF4	2837-89-0	~12	ZR	ZR	ZR
Chloro-1,1,1-trifluoroethane, 2-	C2H2ClF3	75-88-7	~12	ZR	ZR	ZR
Chloro-1,1,2,2-tetrafluoroethane, 1-	C2HClF4	354-25-6	~12	ZR	ZR	ZR
Chloro-1,1,2-trifluoroethane, 1-	C2H2ClF3	421-04-5	~12	ZR	ZR	ZR
Chloro-1,1-difluoroethane, 1-	C2H3ClF2	75-68-3	11.98	ZR	ZR	ZR
Chloro-1,1-difluoroethane, 2-	C2H3ClF2	338-65-8	~11.9	ZR	ZR	ZR
Chloro-1,1-difluoroethene, 2-	C2HClF2	359-10-4	9.80	NA	1.5	NA
Chloro-1,2,2-trifluoroethane, 1-	C2H2ClF3	431-07-2	~12	ZR	ZR	ZR
Chloro-1-fluoroethane, 1-	C2H4ClF	1615-75-4	~11.7	1	ZR	ZR
Chloro-2-fluoroethane, 1-	C2H4ClF	762-50-5	~11.7	1	ZR	ZR
Chloro-2-propanone, 1-	C3H5ClO	78-95-5	9.92	NA	1	NA
Chloro-3,3,3-trifluoroprop-1-ene, 1-	C3H2ClF3	102687-65-0	~11	1
Chloroacetaldehyde	C2H3OCl	107-20-0	10.16	NA	3	NA
Chloroacetyl chloride	C2H2Cl2O	79-04-9	10.30	NA	8.0	NA
Chlorobenzene	C6H5Cl	108-90-7	9.07	0.47	0.45	0.5
Chlorobutane, 1-	C4H9Cl	109-69-3	10.64	0.74	10	ZR
Chlorobutane, 2-	C4H9Cl	78-86-4	10.57	1	5.8	ZR
Chlorocyclohexane	C6H11Cl	542-18-7	10.10	0.5	2	20
Chlorodifluoromethane	CHClF2	75-45-6	12.45	ZR	ZR	ZR
Chloroethane	C2H5Cl	75-00-3	10.97	1.1	ZR	ZR
Chloroethanol, 2-	C2H5ClO	107-07-3	10.50	1	10	ZR
Chloroethyl methyl ether, 2-	C3H7ClO	627-42-9	10.25	NA	2.6	NA
Chlorofluoromethane	CH2ClF	593-70-4	11.71	NA	ZR	ZR
Chloroform	CHCl3	67-66-3	11.42	0.8	ZR	ZR
Chloromethane	CH3Cl	74-87-3	11.28	0.74	ZR	ZR
Chloromethoxyethane	C3H7ClO	3188-13-4	10.30	NA	4	ZR
Chloropentafluoroethane	C2ClF5	76-15-3	12.96	ZR	ZR	ZR
Chloroprene	C4H5Cl	126-99-8	8.79	NA	1.3	NA
Chloropyridine, 2-	C5H4ClN	109-09-1	9.00	NA	1	NA
Chlorostyrene, o-	C8H7Cl	2039-87-4	~8.5	NA	0.4	NA
Chlorothiophene, 3-	C4H3ClS	17249-80-8	8.92	0.7	0.7	0.7
Chlorotoluene, m-	C7H7Cl	108-41-8	8.70	0.5	0.5	0.46
Chlorotoluene, o-	C7H7Cl	95-49-8	8.83	0.6	0.5	NA
Chlorotoluene, p-	C7H7Cl	106-43-4	8.69	0.3	0.4	0.3
Chlorotrifluoroethylene	C2ClF3	79-38-9	9.81	1	1	NA
Chlorotrifluoromethane	CClF3	75-72-9	12.60	NA	ZR	ZR
Cinnamic aldehyde	C8H8O	104-55-2	~9	NA	0.4	NA
Cinnamyl acetate	C11H12O2	21040-45-9	~9	NA	0.4	NA
Cinnamyl alcohol	C9H10O	104-54-1	8.10	NA	0.4	NA
Citral	C10H16O	5392-40-5	~8.7	1.7	1.7	3.4
Citronellal	C10H18O	106-23-0	~9	NA	0.9	NA
Citronellol	C10H20O	26489-01-0	~8.5	NA	1.0	NA
Citronellol acetate	C12H22O2	150-84-5	~9	NA	1.5	NA
Citronellol formate	C11H20O2	105-85-1	~9	NA	1.5	NA
Citronellyl isobutyrate	C14H26O2	97-89-2	~9	NA	0.9	NA
Clary propyl acetate	C11H20O3	131766-73-9	~9	1.3	1.2	2
Coumarin	C9H6O2	91-64-5	~9	NA	0.4	NA
Creosote	n/a	8021-39-4	~9	NA	1	NA
Cresol, m-	C7H8O	108-39-4	8.36	1.7	1.4	1.5
Cresol, o-	C7H8O	95-48-7	8.14	1.4	1.4	1.5
Cresol, p-	C7H8O	106-44-5	8.31	1.5	1.5	1.5
Cresyl acetate, p-	C9H10O2	140-39-6	8.60	NA	1.0	NA
Cresyl ethyl ether, p-	C9H12O	622-60-6	~9	NA	0.8	NA
Cresyl methyl ether	C8H10O	104-93-8	~9	NA	0.8	NA
Crotonaldehyde	C4H6O	4170-30-3	9.73	1.0	1.0	1.8
Crotonyl alcohol	C4H8O	6117-91-5	9.13	NA	0.8	NA
Cyanogen bromide	CNBr	506-68-3	11.84	ZR	ZR	ZR
Cyanogen chloride	CNCl	506-77-4	12.49	ZR	ZR	ZR
Cycloalkanes	N/A	N/A	~10	NA	1.5	NA
Cyclobutanone	C4H6O	1191-95-3	9.35	1.6	1.12	1.10
Cyclobutene	C4H6	822-35-5	9.43	NA	3	NA
Cycloheptane	C7H14	291-64-5	9.82	NA	1.1	NA
Cyclohex-2-enedione, 1,4-	C6H6O2	4505-38-8	9.77	NA	1.0	NA
Cyclohexane	C6H12	110-82-7	9.98	0.64	1.3	3.3
Cyclohexanethiol	C6H12S	1569-69-3	~9	NA	0.5	NA
Cyclohexanol	C6H12O	108-93-0	10.00	0.9	1.6	2.7
Cyclohexanone	C6H10O	108-94-1	9.16	0.8	1.0	1
Cyclohexene	C6H10	110-83-8	8.95	0.56	0.9	1.4
Cyclohexyl acetate	C8H14O2	622-45-7	~9.5	NA	1.2	NA
Cyclohexylamine	C6H13N	108-91-8	8.37	6	3	20
Cyclooctadiene	C8H12	29965-97-7	~9.5	0.5	1.0	1.1
Cyclopentadiene	C5H6	542-92-7	8.56	NA	0.8	NA
Cyclopentane	C5H10	287-92-3	10.52	0.7	10	ZR
Cyclopentanone	C5H8O	120-92-3	9.26	0.8	0.9	1.0
Cyclopentene	C5H8	142-29-0	9.01	NA	1.5	140
Cyclopentene-1,3-dione, 4-	C5H4O2	930-60-9	9.60	NA	1.0	NA
Cyclopropylamine	C3H7N	765-30-0	8.80	1.1	1.5	1.7
Cymene, p-	C10H14	99-87-6	8.29	NA	0.4	NA
Decahydronaphthalene	C10H18	91-17-8	9.14	NA	0.9	NA
Decanal	C10H20O	112-31-2	~9	1.6	1.2	4.0
Decane	C10H22	124-18-5	9.65	0.37	1.2	4.2
Decenal, trans-4-	C10H18O	65405-70-01	~9	1.2	1.4	2.4
Decene	C10H22	872-05-9	~9.5	NA	0.8	NA
Decyne, 1-	C10H18	764-93-2	9.91	0.37	0.43	0.83
Desfluorane	C3H2F6O	57041-67-5	~11	2	ZR	ZR
Deuterium oxide	D2O	7789-20-0	13.60	ZR	ZR	ZR
Diacetone alcohol	C6H12O2	123-42-2	~9.6	1.2	0.9	0.84
Diazine, 1,2-	C4H4N2	289-80-5	9.65	NA	3	NA
Diazine, 1,3-	C4H4N2	289-95-2	9.33	NA	3	NA
Diborane	B2H6	19287-45-7	11.38	NA	ZR	ZR
Dibromoacetylene	C2Br2	624-61-3	9.65	NA	2	NA
Dibromochloromethane	CHBr2Cl	124-48-1	10.59	0.7	10	ZR
Dibromocyclohexane, 1,2-	C6H10Br2	5401-62-7	10.02	NA	3	NA
Dibromocyclopentane	C5H8Br2	33547-17-0	10.06	NA	3	NA
Dibromodichloromethane	CBr2Cl2	594-18-3	10.40	NA	4	ZR
Dibromodifluoromethane	CF2Br2	75-61-6	11.07	NA	3	ZR
Dibromoethane, 1,2-	C2H4Br2	106-93-4	10.35	0.6	2	ZR
Dibromoethene, 1,1-	C2H2Br2	593-92-0	9.78	NA	1.5	NA
Dibromoethene, 1,2-	C2H2Br2	540-49-8	9.63	NA	1.5	NA
Dibromomethane	CH2Br2	74-95-3	10.41	0.70	1.9	ZR
Dibromotetrafluoroethane, 1,2-	C2F4Br2	124-73-2	11.10	1	ZR	ZR
Dichloro-1,1,1-trifluoroethane, 2,2-	C2HCl2F3	306-83-2	11.50	NA	ZR	ZR
Dichloro-1,1-difluoroethane, 1,2-	C2H2Cl2F2	1649-08-7	~11.7 5	ZR	ZR	ZR
Dichloro-1,2,2-trifluoroethane, 1,2-	C2HCl2F3	354-23-4	~11.5	NA	ZR	ZR
Dichloro-1,2-difluoroethane, 1,2-	C2H2Cl2F2	431-06-1	~11.5	1	ZR	ZR
Dichloro-1,2-difluoroethene, 1,2-	C2Cl2F2	598-88-9	10.20	NA	2	NA
Dichloro-1,3-butadiene, 1,4-	C4H6Cl2	1587-29-7	~9	1	0.6	NA
Dichloro-1-fluoroethane, 1,1-	C2H3Cl2F	1717-00-6	~11	1	ZR	ZR
Dichloro-1-fluoroethane, 1,2-	C2H3Cl2F	430-57-9	~11	1	ZR	ZR
Dichloro-1-propene, 2,3-	C3H4Cl2	78-88-6	~10.5	0.7	1.4	ZR
Dichloro-2,2,-difluoroethene, 1,1-	C2Cl2F2	79-35-6	9.69	1	1	NA
Dichloro-2-butene, 1,4-	C4H7Cl	764-41-0	~9.5	1	2.0	NA
Dichloro-2-butene, trans-1,4-	C4H7Cl	110-57-6	~9.5	1	2.0	NA
Dichloroacetylene	C2Cl2	7572-29-4	9.90	NA	5	NA
Dichlorobenzene, m-	C6H4Cl2	541-73-1	~9	0.35	0.5	0.5
Dichlorobenzene, o-	C6H4Cl2	95-50-1	9.06	0.48	0.6	0.6
Dichlorobenzene, p-	C6H4Cl2	106-46-7	9.06	0.35	0.5	0.5
Dichlorodifluoromethane	CCl2F2	75-71-8	11.75	ZR	ZR	ZR
Dichloroethane, 1,1-	C2H4Cl2	75-34-3	11.06	2	ZR	ZR
Dichloroethane, 1,2-	C2H4Cl2	107-06-2	11.05	0.6	ZR	ZR
Dichloroethene, 1,1-	C2H2Cl2	75-35-4	10.00	1	1.0	NA
Dichloroethene, 1,2-	C2H2Cl2	540-59-0	9.65	0.34	0.4	0.29
Dichloroethene, cis-1,2-	C2H2Cl2	156-59-2	9.66	1	0.8	NA
Dichloroethene, trans-1,2-	C2H2Cl2	156-60-5	9.65	0.34	0.4	NA
Dichlorofluoromethane	CHFCl2	75-43-4	12.39	ZR	ZR	ZR
Dichloromethane	CH2Cl2	75-09-2	11.32	1.00	70	ZR
Dichloromethylamine	CH3Cl2N	7651-91-4	9.52	NA	2	NA
Dichloropropane, 1,2-	C3H6Cl2	78-87-5	10.87	0.70	ZR	ZR
Dichlorotetrafluoroethane, 1,1-	C2Cl2F4	374-07-2	12.20	ZR	ZR	ZR
Dichlorotetrafluoroethane, 1,2-	C2Cl2F4	76-14-2	12.20	ZR	ZR	ZR
Dicyclohexylamine	C12H23N	101-83-7	~8.5	NA	0.9	NA
Dicyclopentadiene	C10H12	77-73-6	7.74	0.5	0.65	0.67
Diesel fuel		68334-30-5	8.00	0.4	0.8	NA
Diethoxyethane, 1,1-	C6H14O2	105-57-7	9.78	0.6	1.5	1.0
Diethoxymethane	C5H12O2	462-95-3	9.70		1
Diethyl carbonate	C5H10O3	105-58-8	~10.3	1.2	7	ZR
Diethyl ether	C4H10O	60-29-7	9.53	1.1	1.5	1.4
Diethyl maleate	C8H12O4	141-05-9	~10	NA	2	NA
Diethyl malonate	C7H12O4	105-53-3	10.20	NA	4	ZR
Diethyl phosphite	C4H11O3P	762-04-9	10.31	NA	2	ZR
Diethyl phthalate	C12H14O4	84-66-2	~9	NA	1	NA
Diethyl sulfate	C4H10SO4	64-67-5	~10.5	4	20	ZR
Diethyl sulfide	C4H10S	352-93-2	8.43	0.5	0.8	0.7
Diethyl sulfone	C4H10O2S	597-35-3	9.96	NA	2.0	NA
Diethylacetylene	C6H10	928-49-4	10.03	NA	2	NA
Diethylamine	C4H11N	109-89-7	8.01	NA	3	30
Diethylaminoethanol, 2-	C6H15ON	100-37-8	8.58	NA	2.7	NA
Diethylaminopropylamine, 3-	C7H18N2	104-78-9	~9	3	5	3
Diethylchlorophosphite	C4H10ClO2P	589-57-1	9.50	1.4	1.0	ZR
Diethylene glycol	C4H10O3	111-46-6	~10.3	30	15	40
Diethylene glycol monoethyl ether	C6H14O3	111-90-0	~9	1.2	1.5	3
Diethylenetriamine	C4H13N3	111-40-0	~9	NA	1	NA
Diethylhydroxylamine	C4H11NO	3710-84-7	~10	1.2	1.5	1.5
Diethylsilane	C4H12Si	542-91-6	9.80	NA	2	NA
Difluoroethane, 1,1-	C2H4F2	75-37-6	11.87	ZR	ZR	ZR
Difluoroethane, 1,2-	C2H4F2	624-72-6	11.86	ZR	ZR	ZR
Difluoromethane	CH2F2	75-10-5	12.71	ZR	ZR	ZR
Diglycidyl ether	C6H10O3	2238-07-5	~9.6	NA	3	NA
Dihydroeugenol	C10H14O2	2785-87-7	~9	NA	0.4	NA
Dihydrojasmone	C11H18O	1128-08-1	~9	NA	0.6	NA
Dihydromyrcenol	C10H20O	18479-58-8	~9	NA	0.8	NA
Dihydroxybenzene, 1,2-	C6H6O2	120-80-9	8.56	NA	1	NA
Dihydroxybenzene, 1,3-	C6H6O2	108-46-3	8.63	NA	1	NA
Diiodomethane	CH2I2	75-11-6	9.46	NA	1.2	NA
Diisobutyl ketone	C9H18O	108-83-8	9.04	NA	0.8	0.7
Diisobutylene	C8H16	107-39-1	8.91	0.50	0.7	0.9
Diisopropyl ether	C6H14O	108-20-3	9.20	0.62	0.70	0.95
Diisopropylamine	C6H15N	108-18-9	7.73	0.53	0.7	0.6
Diisopropylbenzene	C12H18	25321-09-9	~8.8	NA	0.5	NA
Diketene	C4H4O2	674-82-8	9.60	1.4	2.2	NA
Dimethoxybenzene, 1,4-	C8H10O2	150-78-7	~9	NA	1.3	NA
Dimethoxyethane, 1,2-	C4H10O2	110-71-4	9.20	0.6	0.9	1.2
Dimethoxymethane	C3H8O2	109-87-5	10.00	1.2	2.8	13
Dimethyl carbonate	C3H6O3	616-38-6	10.52	1.5	60	ZR
Dimethyl chlorothiophosphate	C2H6ClO2PS	2524-03-0	~9	NA	1	NA
Dimethyl disulfide	C2H6S2	624-92-0	8.46	NA	0.2	NA
Dimethyl ether	C2H6O	115-10-6	10.03	NA	1.3	NA
Dimethyl hydrogen phosphite	C2H7O3P	868-85-9	10.53	NA	8	ZR
Dimethyl phthalate	C10H10O4	131-11-3	9.64	NA	1	NA
Dimethyl sulfate	C2H6O4S	77-78-1	~12	2.3	ZR	ZR
Dimethyl sulfoxide	C2H6OS	67-68-5	9.10	9	20	32
Dimethylacetamide N,N-	C4H9NO	127-19-5	8.81	0.8	1.3	NA
Dimethylacetylene	C4H6	503-17-3	9.58	0.4	0.19	0.16
Dimethylamine	C2H7N	124-40-3	8.24	2	1.5	NA
Dimethylaminoethane, N,N-	C2H8N2	57-14-7	8.05	0.8	1	NA
Dimethylaminoethanol, 2-	C4H11NO	108-01-0	8.80	7	3	50
Dimethylaniline, NN-	C8H11N	121-69-7	7.12	0.9	2	2
Dimethylboron bromide	C2H6BBr	5158-50-9	10.25	NA	4	NA
Dimethylbutene, 2,3-	C6H12	563-78-0	9.07		0.8
Dimethylbutyl acetate, 1,3-	C8H16O2	108-84-9	~9.5	2	1.6	NA
Dimethylcycloheptane, 1,2-	C9H18	13151-50-3	10.21	NA	1.3	NA
Dimethylcyclohexane,1,2-	C8H16	583-57-3	9.41	0.45	0.55	0.9
Dimethylcyclopentane	C7H14	1192-18-3	9.92	NA	1.2	NA
Dimethylethylamine, NN-	C4H11N	598-56-1	7.74	1.2	1.6	1.7
Dimethylformamide	C3H7NO	68-12-2	9.13	1.12	1.3	1.1
Dimethylmethylphosphonate	C3H9O3P	756-79-6	9.94	NA	5	NA
Dimethyloctan-1-ol, 3,7-	C10H22O	106-21-8	~9	NA	1.2	NA
Dimethyloctan-3-ol, 3,7-	C10H22O	78-69-3	~9	NA	1.2	NA
Dimethylpentane, 2,4-	C7H16	108-08-7	~9.8	NA	1	NA
Dimethylsilane	C2H8Si	1111-74-6	10.30	NA	2	ZR
Di-n-butylamine	C8H19N	111-92-2	7.69	1	6	4
Dioxane, 1,4-	C4H8O2	123-91-1	9.13	0.85	1.45	1.7
Dioxolane	C3H6O2	646-06-0	9.13	1.47	2.7	4.5
Dipentene	C10H16	138-86-3	~8.6	1	0.9	0.8
Dipentene, (+)-	C10H16	5989-27-5	~8.6	0.45	0.8	0.8
Diphenyl ether	C12H10O	101-84-8	8.09	1.4	1.5	1.7
Dipropyl ether	C6H14O	111-43-3	9.30	NA	1.0	NA
Dipropylamine	C6H15N	142-84-7	7.80	0.7	1.5	1.5
Dipropylene glycol	C6H14O3	110-98-5	~10	NA	4	NA
Disilane	Si2H6	1590-87-0	9.74	NA	2	NA
Disulfur decafluoride	S2F10	5714-22-7	12.77	NA	ZR	ZR
Disulfur dibromide	S2Br2	13172-31-1	9.23	NA	1.5	NA
Disulfur dichloride	S2Cl2	10025-67-9	9.40	NA	3	NA
Di-tert-butyl-p-cresol	C15H24O	128-37-0	7.80	NA	0.3	NA
Divinylbenzene, 1,2-	C10H10	1321-74-0	~8.2	NA	0.7	0.6
Divinylbenzene, 1,3-	C10H10	108-57-6	~8.3	NA	0.6	0.6
Dodecene	C12H24	112-40-3	~8.8	NA	1.0	NA
Enflurane	C4H2F5ClO	13838-16-9	11.70	ZR	ZR	ZR
Epichlorohydrin	C3H5ClO	106-89-8	10.20	0.80	5	30
Epoxypropyl isopropyl ether, 2,3-	C6H12O2	4016-14-2	~10	0.6	1.2	1.1
Estragole	C10H12O	140-67-0	~9	NA	0.7	NA
Ethane	C2H6	74-84-0	11.56	3	ZR	ZR
Ethanol	C2H6O	64-17-5	10.47	3	11	ZR
Ethanolamine	C2H7NO	141-43-5	10.47	NA	3	ZR
Ethoxy-2-methylpropane, 1-	C6H14O	627-02-1	9.30	NA	1	NA
Ethoxy-2-propanol, 1-	C5H12O2	1569-02-4	~9.6	0.9	1.2	1.9
Ethoxybutane, 2-	C6H14O	19316-73-5	9.32	NA	1	NA
Ethoxyethanol, 2-	C4H10O2	110-80-5	9.60	1.7	2	5
Ethoxynonafluorobutane	C6H5OF9	163702-06-5	12.00		ZR	ZR
Ethoxypropanol	C5H12O2	52125-53-8	~9.6	0.9	1.2	1.9
Ethyl 2,2,2-trifluoroethyl ether	C4H7F3O	461-24-5	10.27	NA	5	NA
Ethyl 2-methylbutyrate	C7H14O2	7452-79-1	~9	0.72	1.4	1.8
Ethyl acetate	C4H8O2	141-78-6	10.01	1.4	4.5	40
Ethyl acetoacetate	C6H10O3	141-97-9	~9.5	2.2	2.5	3
Ethyl acrylate	C5H8O2	140-88-5	10.30	1.0	2.3	15
Ethyl benzoate	C9H10O2	93-89-0	8.90	NA	0.9	NA
Ethyl butyrate	C6H12O2	105-54-4	~9.9	1.0	1.4	3.3
Ethyl chloroformate	C3H5O2Cl	541-41-3	10.64	2.0	80	ZR
Ethyl cyanoacrylate	C6H7O2N	7085-85-0	~10	NA	1.5	NA
Ethyl decanoate	C12H24O2	110-38-3	~9.6	2	1.4	8
Ethyl formate	C3H6O2	109-94-4	10.61	1.76	35	ZR
Ethyl hexanoate	C8H16O2	123-66-0	~9.75	0.7	1.6	3.3
Ethyl hexanol, 2-	C8H18O	104-76-7	~9.8	1	1.5	NA
Ethyl iodide	C2H5I	75-03-6	9.34	0.30	0.30	0.30
Ethyl isopropyl ketone	C6H12O	565-69-5	9.10	NA	0.8	NA
Ethyl lactate	C5H10O3	97-64-3	~10	1.09	2.1	5
Ethyl mercaptan	C2H6S	75-08-1	9.29	0.6	0.6	0.6
Ethyl methacrylate	C6H10O2	97-63-2	~9.5	0.86	1.06	1.6
Ethyl methyl carbonate	C4H8O3	623-53-0	10.40	1.2	18	ZR
Ethyl octanoate	C10H20O2	106-32-1	~9.7	0.8	2	4
Ethyl perfluorobutyl ether	C6H5F9O	163702-05-4	~11	20	ZR	ZR
Ethyl phenylacetate	C10H12O2	101-97-3	~9	NA	1.2	NA
Ethyl propanoate	C5H10O2	105-37-3	10.01	1.2	2.5	6
Ethyl tert-butyl ether	C6H14O	637-92-3	9.39	NA	0.8	NA
Ethyl-2-methylbenzene, 1-	C9H12	611-14-3	~8.7	NA	0.5	0.5
Ethyl-3-ethoxypropionate	C7H14O3	763-69-9	~9.5	NA	3	NA
Ethylacetylene	C4H6	107-00-6	10.18	0.4	0.2	0.2
Ethylamine	C2H7N	75-04-7	8.86	1	1	NA
Ethylbenzene	C8H10	100-41-4	8.76	0.54	0.56	0.6
Ethylcyclohexane	C8H16	1678-91-7	9.54	0.48	0.8	1.3
Ethylene	C2H4	74-85-1	10.51	3	50	ZR
Ethylene carbonate	C3H4O3	96-49-1	10.40	NA	ZR	ZR
Ethylene cyanohydrin	C3H5NO	109-78-4	~10.8	1	ZR	ZR
Ethylene dinitrate	C2H4O6N2	628-96-6	~10.8	NA	ZR	ZR
Ethylene glycol	C2H6O2	107-21-1	10.16	4.1	9	9
Ethylene glycol diacetate	C6H10O4	111-55-7	~10	NA	4	NA
Ethylene glycol monopropyl ether	C5H12O2	2807-30-9	~9	1.7	3	4
Ethylene oxide	C2H4O	75-21-8	10.56	2	9.0	ZR
Ethylenediamine	C2H8N2	107-15-3	8.60	8	10	10
Ethyleneimine	C2H5N	151-56-4	9.20	NA	2	NA
Ethylhexanal, 2-	C8H16O	123-05-7	~9	NA	1.5	NA
Ethylhexanoic acid, 2-	C8H16O2	149-57-5	~10	2.9	5	16
Ethylhexenal, 2-	C8H14O	645-62-5	~9	NA	1.3	NA
Ethylhexyl acrylate, 2-	C11H20O2	103-11-7	~9	0.5	1	NA
Ethylmorpholine, 4-	C6H13NO	100-74-3	~8	0.9	3	2
Ethyltoluene, 3-	C9H12	620-14-4	~8.5		0.6
Ethyltoluene, 4-	C9H12	622-96-8	~8.5		0.6
Eucalyptol	C10H18O	470-82-6	~9	NA	0.6	NA
Eugenol	C10H12O2	97-53-0	~9	30	10.0	30
Eugenol methyl ether	C11H14O2	93-15-2	~9	NA	0.4	NA
Fenchol	C10H18O	1632-73-1	~9	NA	0.4	NA
Ferrocene	C10H10Fe	102-54-5	6.88	NA	0.8	NA
Fluorine	F2	7782-41-4	15.70	NA	ZR	ZR
Fluoro-2-propanone, 1-	C3H5FO	430-51-3	9.92	1	ZR	NA
Fluorobenzene	C6H5F	462-06-6	9.20	0.78	0.74	0.83
Fluorobenzoic acid, 4-	C7H5FO2	456-22-4	9.91	NA	2	NA
Fluoroethane	C2H5F	353-33-6	11.78	ZR	ZR	ZR
Fluoromethane	CH3F	593-53-3	12.47	ZR	ZR	ZR
Formaldehyde	CH2O	50-00-0	10.87	0.6	ZR	ZR
Formamide	CH3ON	75-12-7	10.20	NA	2	NA
Formic acid	CH2O2	64-18-6	11.05	5	ZR	ZR
Furan	C4H4O	110-00-9	8.88	NA	0.4	NA
Furfural	C5H4O2	98-01-1	9.21	1.1	1.1	1.1
Furfuryl alcohol	C5H6O2	98-00-0	~9.9	NA	2	NA
Furfuryl mercaptan	C5H6OS	98-02-2	~9	0.60	0.8	0.8
Gasoline		8006-61-9	~9.9	NA	0.9	1
Geranial	C10H16O	141-27-5	~9	NA	0.6	NA
Geraniol	C10H18O	106-24-1	~9	NA	0.7	NA
Geranyl acetate	C12H20O2	105-87-3	~9	NA	1.2	NA
Germane	GeH4	7782-65-2	11.34	NA	10	ZR
Glutaraldehyde	C5H8O2	111-30-8	~9.6	5	5	13
Glycidol	C3H6O2	556-52-5	~10.8	2	ZR	ZR
Glycidyl methacrylate	C7H10O3	106-91-2	~10	NA	1.2	ZR
Glycolaldehyde	C2H4O2	141-46-8	~10.4	NA	5	ZR
Glyoxal	C2H2O2	107-22-2	10.20	ZR	ZR	ZR
Guaiacol	C7H8O2	90-05-1	~9	NA	0.8	NA
Halothane	CF3CHBrCl	151-67-7	11.00	0.6	ZR	ZR
Helium	He	7440-59-7	24.59	NA	ZR	ZR
Heptan-2-one	C7H14O	110-43-0	9.33	0.54	0.85	0.97
Heptan-3-one	C7H14O	106-35-4	9.02	0.59	0.73	0.81
Heptan-4-one	C7H14O	123-19-3	9.10	0.7	0.9	1.0
Heptane	C7H16	142-82-5	9.92	0.5	2.2	11

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GX-6100 Software
GX-6100 Data Logger Program GX-6100 User Config Program
Manuals & Literature
GX-6100 Operator’s Manual GX-6100 Product Datatsheet

Benzene Monitoring

What is Benzene and Where is it found?

Benzene (C₆H₆) is a volatile, colorless, and highly flammable aromatic hydrocarboncomposed exclusively of carbon and hydrogen atoms, placing it within the chemical class of volatile organic compounds (VOCs). Its molecular structure—a ring of six carbon atoms with alternating double bonds—contributes to both its chemical stability and its ability to evaporate easily into the atmosphere.

Benzene is a naturally occurring component in crude oil and petroleum-based products and is widely encountered across the entire oil and gas value chain, including:

Upstream operations (e.g., drilling platforms, wellheads)
Midstream processes (e.g., pipelines, storage tanks, compressor stations)
Downstream facilities (e.g., refineries, chemical plants)

In addition to its presence in industrial operations, benzene may be released through incomplete combustion of fossil fuels, tobacco smoke, and other anthropogenic sources. Its mobility in air, water, and soil contributes to environmental dispersion, raising concern for airborne exposure, groundwater contamination, and soil pollution near production and processing sites.

Health and Safety Implications

Benzene is classified as a Group 1 human carcinogen by the International Agency for Research on Cancer (IARC). It has been definitively linked to acute myeloid leukemia (AML) and other blood disorders due to its ability to disrupt bone marrow function, even at relatively low concentrations.

The American Petroleum Institute (API) stated as early as 1948:
“It is generally considered that the only absolutely safe concentration for benzene is zero.”

The compound’s high volatility means that inhalation is the primary route of occupational exposure, especially in enclosed or poorly ventilated spaces.

Regulatory exposure recommendations include:

OSHA Permissible Exposure Limit (PEL):
1 part per million (ppm) as an 8-hour time-weighted average (TWA)
NIOSH Recommended Exposure Limit (REL):
0.1 ppm TWA over 8 hours
NIOSH Immediately Dangerous to Life or Health (IDLH) level:
500 ppm
ACGIH TLV:
0.02 ppm TWA over 8 hours

Due to the hazardous nature of benzene, NIOSH recommends the use of supplied-air respirators or self-contained breathing apparatus (SCBA) when concentrations exceed the REL. In addition, continuous gas monitoring is essential for protecting workers during operations involving potential benzene release.

RKI’s Solution for Benzene Detection: The GX-6000 with PID Technology

RKI Instruments offers a targeted and effective solution for benzenedetection through the GX-6000 multi-gas monitor, equipped with a 10.0 eV Photoionization Detector (PID) and specialized benzenefiltration tube.

Benzene-Specific Detection Using 10.0 eV PID + Filtration Tube
Benzene’s ionization potential is low enough to be effectively ionized by a 10.0eV PID lamp, while many other interfering compounds with higher ionization energies are excluded. When used in combination with RKI’s benzene-specific filter tube, this system removes common VOC interferences, allowing the PID to focus solely on benzenemolecules.

Benzene Measuring Mode Uses Temperature to Determine Sampling Time
The GX-6000 can utilize the 10.0 PID lamp in a normal VOC monitoring mode with the ability to detect 300 different VOC’s including benzene. In Benzene Specific Mode, the GX-6000 will automatically determine the appropriate sampling time to measure benzene through the filter tube based on the current temperature, which can be anywhere from 35 to 135 seconds.

Dual PID Function
The GX-6000 is the only gas monitor with the capability of operating 2 PID lamps in one instrument! Add a second PID lamp to the GX-6000 alongside the benzene specific 10.0 PID lamp and now this instrument is doing the work of 2 gas monitors. This provides monitoring for a broad range of VOC’s with a library of over 600 VOC compounds, to work in concert with the ability to switch to Benzene Specific Mode at any time.

Smart Sensor Wells
The GX-6000 has 2 smart sensor wells where PID (4 lamp options available), IR, and EC sensors can be switched and automatically recognized by the instrument. This flexibility tailors the GX-6000 to match a variety of specific applications from a single instrument.

Versatile Multi-Gas Monitoring Platform
The GX-6000 is more than just a PID monitor. It supports up to six simultaneous gas sensors, allowing for comprehensive atmospheric monitoring in a single device. Available sensor configurations include:

LEL / %Vol / PPM Hydrocarbons (combustible gas detection)
Oxygen (O₂)
Hydrogen Sulfide (H₂S)
Carbon Monoxide (CO)
Smart EC toxic sensors for: NH3, Cl2, HCN NO2, PH3, & SO2
Photoionization Detectors (PID) with four optional lamps:
– 10.6 eV (broad range VOCs low range)
– 10.6 eV (broad range VOCs high range)
– 11.7 eV (high-sensitivity VOCs)
– 10.0 eV (benzene-selective with filter tube)

Durability and User-Focused Design
Designed for harsh environments, the GX-6000 features:

IP-67-rated water and dust resistance
Durable housing to withstand drops and vibration
Large, color LCD display with easy-to-read gas concentration values
Intuitive menu navigation and one-button operation for critical functions
Rechargeable battery with long run time for extended field use

Conclusion
The GX-6000 with a 10.0 eV PID and benzene filter tube offers a technically advanced yet field-ready solution for industries facing increased benzene monitoring demands. This system delivers precise benzene measurements, supports full multi-gas capability, and withstands the rigors of real-world use—making it an invaluable tool for maintaining worker safety and environmental compliance.For more information on configuring the GX-6000 for benzenedetection or to request a demonstration, please contact your RKI Instruments representative or visit www.rkiinstruments.com.

Distributor Resources

GX-6100 Price List & Resources

(for Authorized Distributors)

GX-6100 Multigas Detector

Portable 6 Gas, Sample Draw Gas Monitor with PID, IR & Super Toxic Sensors Options

6 Operating Modes

Gases & Detectable Ranges

Smart Sensors

Common Specifications

GX-6100 Software

Manuals & Literature

Health and Safety Implications

RKI’s Solution for Benzene Detection: The GX-6000 with PID Technology

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