Document MJ1V7jdeLKGgoBjOKOX5YM0va
3M Organic Vapor Monitor # 3500
Analysis Guide
ANOTHER STEP TOWARDS BETTER OCCUPATIONAL HEALTH AND SAFETY R35AG(611.)R
Occupational Health and Safety Products Dlvision/3M 220-7W, 3M Center St. Paul, Minnesota 55144
LithO in U.S.A.
3M
3H 106375
3M Organic Vapor Monitor
Analysis Guide
USE OF THE ANALYSIS GUIDE TABLES: The Analysis Guide is designed for the customer involved in the analysis of the 3M #3500 Organic Vapor Monitor by the gas chromatograph. The following tables summarize the 3M monitor sampling rate, capacity, recovery coefficient and calculation constants. The analysis guide provides the necessary information to calculate the time-weighted-average concentration in parts per million (ppm) or milligrams per cubic meter (mg/m3).
A. Monitor Sample Information Sampling Rate The (*) compounds in the Sampling Guide tables have been subjected to an extensive amount of laboratory work to verify the sampling rate. The sampling rates given for the remaining compounds in this table were determined from empirical relationships as outlined in a publication on Sampling Rate Validation. All sampling rates have an accuracy of 5%. The sampling rates are tabulated as either cubic centimeters/minute or micrograms/ppm-hour.
Capacity The capacity of the monitor for each individual compound is a function of molecular structure, vapor pressure, environmental conditions, etc. The capacity is stated in terms of weight (milligrams). For a single contaminant, if the analyst finds the weight collected by the monitor is greater than the defined capacity, then the validity of the sample should be questioned. When sampling multiple contaminants, the combined weights of the contaminants collected should not exceed the defined value for the single contaminant with the lowest capacity.
Recovery Coefficients (Desorption Efficiency) The collected sample is removed from the activated carbon wafer for analysis by desorption with carbon disulfide (CS2) or other suitable solvents. In order for the laboratory analyst to determine accurately the amount of contaminant collected by the adsorbent, it is necessary to know the efficiency of the desorption process. The recovery coefficient or desorption efficiency is determined by adding a known weight of contaminant onto the adsorbent and measuring the weight of contaminant in the desorbing solvent. The recovery coefficient is calculated by dividing the recovered weight by the known weight. It is recommended that each analytical laboratory determine recovery coefficients according to the procedure outlined by the 3M laboratory contained in the Analysis Guide as "Recommended Procedure for Determination of Recovery Coefficients." Recovery coefficients determined by the 3M laboratory are tabulated in the following tables.
B. Procedure to Calculate Contaminant Concentrations The time-weighted-average concentration of the environment sampled can be calculated by knowing the length of the sampling period, the contaminant weight determined by gas chromatography, the recovery coefficient and the calculation constant either A or B. The calculation constant A is used to calculate the concentration when expressed in units of milligrams per cubic meter (mg/m3) and constant B when expressed in units of parts per million (ppm). The calculation constant A and B have been determined for every contaminant in the Analysis Guide by the following expressions:
A = 1000 Sampling Rate
B = 1000 x (24.45) (Sampling Rate) x (Molecular Weight)
1 3M 106376
The contaminant concentration can be calculated with the following information: Sampling Information
Contaminant length of Sampling Period (min.) t
Contaminant Information from Tables in Analysis Guide Calculation Constant A or B
Analytical Results Contaminant weight recovered W (Micrograms) Recovery Coefficient (r)
The time-weighted-average concentration in milligrams per cubic meter of the contaminant in the environment sampled can be calculated from the following expression:
Cfmg/m3) = .W (micrograms) xA rxt (minutes)
The time-weighted-average concentration in parts per million (ppm) of the contaminant can be calculated from the following expression:
C(ppm) =
W (micrograms) xB rxt (minutes)
The above expressions calculate the time-weighted-average concentrations at a sampling temperature of 25C (298K) and pressure of 760 mm. When sampling at other environmental conditions, the above expressions need to be corrected only for variations in temperature. The above expressions can be multiplied by the following temperatures correction factors (CFT) for samples collected at temperatures other than 25C (77F).
Sampling
(C)
44 37 31 25 19 13
7 2 -3
-8
Temperature (F)
111 99 88 77 66 55 45 36 27 18
Temperature Correction Factor
(CFT)
.97 .98 .99 1.00 1.01 1.02 1.03 1.04 1.05 1.06
From the above table, every 10-11 * above or below 77F requires a one percent correction to the calculated time-weighted-average concentration.
If the temperature correction is desired, the time weighted average concentration can be calculated by the following expression:
C(mg/m3)
W (micrograms) r x t (minutes)
xAxCFj
C(ppm) =
W (micrograms) r x t (minutes)
XBxCFT
3M 10637#
2
Example Calculation
Contaminant Length of Sampling Period (t) Temperature (T) Calculation Constant A
or B Contaminant Weight Recovered (W) Recovery Coefficient(r)
Benzene 420 minutes 75F 28.2
8.83
27.2 micrograms 1.02
Using Calculation Constant A:
C(mg/m3) =
--------- --------------(1.02) (420)
x 28.2
C = 1.79 mg/m3
Using Calculation Constant B:
C (ppm) =
--------- 27-2-- (1.02) (4.20)
x 8.83
C = .56 ppm
3M 106378
3
Acetone* Acetonitrile Acrylonitrile Allyl Alcohol Allyl Chloride
n-Amyl Acetate* s-Amyl Acetate n-Amyl Alcohol* i-Amyl Alcohol* s-Amyl Alcohol
Benzene' Benzyl Chloride Bramoform Butadiene n-Butyl Acetate
s-Butyl Acetate t-Butyl Acetate Butyl Acrylate Butyl Alcohol* s-Butyl Alcohol
t-Butyl Alcohol Butyl Cellosotve*
(2-Butoxyethanol) Butyl Qlycidyl Ether (BGE) p-tert-Butyltoluene*
Camphor Carbon Disulfide Carbon Tetrachloride* Cellosolve*
(2-Ethoxyethanol) Cellosolve Acetate*
(2-Ethoxyethyl Acetate)
Chlorobenzene* o-Chlorostyrene o-Chlorotoluene Chlorobromomethane' Chloroform
1 -Chloro-1 -nltropropane Chloroprene
(2-Cnloro-l ,3-butadiene) Cumene* Cyclohexane* Cyciohexanol*
Cyclohexanone* Cyclohexene* Diacetone Alcohol* o-Dichlorobenzene* p-Dichlorobenzene*
1,1 Dichloroethane 1,2 Dichloroethylene* 1,1 Dichloro-1-nltroethane Dichloroethyl Ether
+ Methylene Chlorate u the eotvent
ANALYSIS GUIDE
Sampling Rid
(ec/mln)
40.1 .9 48.2 43.8 40.4 35.1 26.0 .5 27.2 31.2 .4 32.3 .4 32.3 35.5 .6 27.2 29.3 42.8 31.6 28.6 29.4 28.7 34.3 .7 34.8 35.2
28.2 .6 27.0 20,7 .4 21.4 42.8 30.2 .4
32.4 .9
26.6 .4 29.3 .6 26.0 27.3 34.4 .9 33.5 30.4
32.2 24.5 .9 32.4 + .7 29.5 .3 28.9 .3 32.3 .4 28.2 .4 27.8 .6 27.8 * .6 33.2 35.2 .5 28.5 26.1
Capacity (mg)
3 14 11 20
1 >25 >25 >25 >25 >25
13 >25 >25
.4 25 >25 19 >25 >25 19 13
>25 >25 >25 >25
1 14
>25
>25 >25 >25 >25
10 7
>25
5 >25
22 >25 >25
22 >25 >25 >25
4 1 >25 >25
Coefficient
.87 -- -- --
1.08 --
1.00 + .99 + .99 +
1.02 1.05 1.05
-- 1.04 1.07 1.05
-- .98 + .97 + --
.86 -- 1.10 -- -- 1.05
.78
1.03 1.00
-- -- 1.00 .98 --
_
.96 1.07 1.00 +
.97 1.02 1.04 +
.95 .95 -- .99 -- --
Calculation Constant
A (mg/m3)
24.9 20.8 22.8 24.75 28.5
B ___ (PPTM>
10.51 12.37 10.53 10.43
9.05
38.6 36.8 32.1 31.0 31.0
7.26 6.91 8.91 8.63 8.60
28.2 36.8 34.1 23.4 31.7
8.83 7.08 3.30 10.53 6.67
35.0 34.0 34.8 29.2 28.7
7.37 7.17 6.66 9.63 9.44
28.4
9.39
35.5 37.0 48.3
46.7 23.4 33.1
7.35 6.97 7.98
7.52 7.52 5.26
30.9
8.39
37.6 34.1 38.5 36.6 29.1 29.9 32.9
6.96 7.38 6.77 7.05 5.51 6.13 6.49
31.1 40.8 30.9 32.7 34.6 31.0 35.5 36.0 36.0
30.1 28.4 35.1 38.3
8.53 8.32 8.98 848
8.63 9.23 7.47 5.98 5.98 7.44 7.16 5.96 6.55
3H 1063
4
Diisobutyl Ketone*
Dimethyl Formamide
p-Dioxane Dipropylene Glycol Methyl Ether
Enflurane (2-Chloro-1,1,2 trifluoroethyl difluoromethyl ether)
Epichlorohydrin (1 -Chloro-2,3-epoxy.propane)
Ethyl Acetate*
Ethyl Acrylate Ethyl Alcohol Ethyl Benzene
Ethyl Bromide*
Ethyl Butyl Ketone (3-Heptanone)
Ethyl Ether Ethyl Formate Ethylene Chlorohydrin
(2-Chloroethanol)
Ethylene Dibromide* (1,2-Dibromomethane)
Ethylene Dichloride* (1,2-Dichloroethane)
Furfural Furfuryl Alcohol Glycidol
(2,3-Epoxy-l -propanol)
Halothane (2-Bromo-2-ch!oro-1,1,1 trifluoroethane)
Heptane* Hexachloroethane
Hexane*
s-Hexyl Acetate
Isoamyl Acetate
Isoamyl Alcohol*
Isobutyl Acetate' Isobutyl Alcohol*
Isophorone* Isopropyl Acetate
Isopropyl Alcohol Isopropyl Ether
Isopropyl Glycidyl Ether
Mesityl Oxide*
Mesitylene* (Trimethyl Benzene)
Methyl Acetate*
Methyl Acrylate
Metnylal (Dimethyoxymethane)
Methyl Amyl Ketone (2-Heptanone)
Methyl Bromide Methyl Butyl Ketone*
(2-Hexanone) Methyl Isobutyl Ketone*
(Hexanone) Methyl Cellosolve*
(2-Methoxyethanol)
+ Methylene Chlonde as the solvent
ANALYSIS GUIDE
Sampling Rate
(cc/min)
24.6 + .8 32.4 34.5 25.3
28.3
29.6 34.5 .6 32.2 51.2 27,3 36.4 + .3
28.0 36.8 38.8
33.9
29.6 .4
33.2 .7 34.3 32.6
37.1
30.2 28.9 .7 26.7 32.0 .7 28.1 27.2 32.3 .4 31.0 .3 35.9 + .7 21.7 + .7 31.7 39.4 31.2 29.1 31.2 1.2
26.3 + .7 37.0 .6 35.8
37.9
27.9 46.5
29.7 .7
30.0 .4
36.3 5: .4
Capacity (mg)
>25 >25 >25 >25
Recovery Coefficient
1.07 -- --
4
>25 10 19 12
>25 1
>25 .4 1
>25
>25
18 >25 >25
>25
--
.95 1.01
-- -- -- 1.03
--
--
1.04
1.02 --
--
4 >25 >25
18 >25 >25 >25 >25 >25 >25
15 17 10 >25 >25
>25 2
11
1
>25 .5
>25
>25
>25
--
1.08 --
1.05 -- --
1.03 + --
1.02 + 1.03 + 1.05 +
-- -- -- .99
1.06 1.00
--
--
___
--
1.00
1.06
.75
5
Calculation Constant
A (mg/m3)
B (ppm)
40.7 30.9 29.0 39.5
7.00 10.34
8.05 6.53
35.3
33.8 29.0 31.1 19.5 36.6 27.5
35.7 27.2 25.8
29.5
33.8
30.1 32.8 30.7
27.0
4.68
8.88 8.05 7 59 10.38 8.45 6.16
7.66 8.98 8.52
8.90
4.39
7.44 8.35 7.65
8.91
33.1 34.6 37.5 31.3 35.6 36.8 31.0 32.3 27.9 46.1 31.5 25.4 33.0 34.4 32.1
38.0 27.0 27.9
26.4
35.8 21.5
33.7
33.3
27.5
5.96 8.46 3.86 8.88 6.04 8.64 8.60 6.80 9.20 8.16 7.56 10.34 7.91 7.24 8.00
7.75 8.93 7.94
8.49
7.69 5.53
8.23
8.15
1 8.86
3M 106380
Methyl Cellosolve Acetate* (Ethylene Glycol Methyl Ether Acetate)
Methyl Chloroform* Methyl Cyclohexane* Methyl Cyclohexanol
Methyl Ethyl Ketone* (2-Butanone)
Methyl Formate 5-Methyl-3-heptanone
(Ethyl Amyl Ketone) Methyl Iodide Methyl Isobutyl Carbino!
(Methyl Amyl Alcohol)
Methyl Isoamyl Ketone Methyl Methacrylate Alpha Methyl Styrene* Methylene Chloride*
(Dichloromethane) Naphtha (VM&P)*
Naphthalene Nonane* Octane* Pentane* 2-Pentanone*
(Methyl Propyl Ketone)
Perchloroethylene* Phenyl Ether Phenyl Glycidyl Ether n-Propyl Acetate* n-Propyl Alcohol*
Propylene Dlchloride* (1,2 Dlchloropropane)
Propylene Glycol Monomethyl Ether n-Propyl Nitrate
Stoddard Solvent Styrene* 1,1,2,2-Tetrachloroethane 1,1,1,2-Tetrachloro-2,2-difluoroethane 1,1,2,2-Tetrachloro-l ,2-dlfluoroethane
Tetrahydrofuran Toluene* 1,1,2-Trichtoroethane* Trichloroethylene* 1,1,2-Trichloro-l ,2,2-trifluoroethane
1,2,3-Trichloropropane Vinyl Acetate Vinyl Bromide Vinyl Chloride* Vinylidene Chloride
Vinyl Toluene Xylene*
+Mrthytara Chtortd* a$ th
ANALYSIS GUIDE
Sampling Rate
(cc/min)
29.0 .5 30.9 .3 28.9 .4 28.8
36.3 .9 45.0
26.4 36.7
29.2 28.0 31.8 25.0 * .5
37.9 .3 33.2 .7 24.6 24.6 .6 26.6 * .6 35.3 .9
33.0 .5 28.3 .5 24.1 20.8 30.1 .5 39.7 .7
30.6 .4 32.4 33.3 24.3 26.8 .8 28.4 29.7 28.2 37.2 31.4 ,6 29.7 .6 31.1 .2 31.4 27.4 35.8 41.0 40.8 .5 38.4 26.8 27.3 .5
Capacity (mg)
wufiiiuvm
>25 12
>25 >25
12 .2
>25 .2
>25 >25
24 >25
2 20 >25 >25 >25
7
23 >25 >25 >25
21 25
25 >25 >25 >25 >25 >25
5 5 8 25 >25 20 .5 >25 7 .3 .04 .5 >25 >25
1.00 1.03 1.05
--
1.00 --
--
_
-- -- 1.01
.90 1.04
-- 1.09 1.08 1.02
1.03 1.05
-- -- .93+
1.04 -- -- -- 1.08 .89 -- -- --
1.05 1.02 1.00
-- -- 1.02
--
1.02
-- 1.07
Calculation Constant
(mg/m3)
B (ppm)
34.5 32.4 34.6 34.7
7.14 5.95 8.63 7,45
27.5 22.2
37.9 27.3
34.2 35.7 31.5 40.0
26.9 30.1 40.7 40.7 37.6 28.3
30.3 35.3 41.5 48.1 33.3 25.2
9.35 9.06
7.24 4.69
8.21 7.66 7.69 8.29
7.59 7.36 7.76 9.04 8.06 9.62
8.62 5.20 5.97 7.B4 7.96 10.26
32.7 32.3 30.0
41.2 37.3 35.2 33.9 35.5
26.8 31.8 33.7 32.2 31.9 36.5 27.9 24.4 24.4 25.9
37.3 36.6
7.07 7.58 8.25
6.99 8.77 5.12 4.06 4.25
9.13 8.46 6.19 6.00 4.16 6.07 7.94 5.57 9.56 8.53
7.73 8.45
3M 1063#
6
3M Organic Vapor Monitor # 3500
Analysis Guide
ANOTHER STEP TOWARDS BETTER OCCUPATIONAL HEALTH AND SAFETY R35AG(611 )R
Occupational Health and Safety Products Division/3M
220-7W, 3M Center St. Paul, Minnesota 55144
Litho in U.S.A.
3M 106382
3M Organic Vapor Monitor
Analysis Guide
USE OF THE ANALYSIS GUIDE TABLES:
The Analysis Guide is designed for the customer involved in the analysis of the 3M #3500 Organic Vapor Monitor by the gas chromatograph. The following tables summarize the 3M monitor sampling rate, capacity, recovery coefficient and calculation constants. The analysis guide provides the necessary information to calculate the time-weighted-average concentration in parts per million (ppm) or milligrams per cubic meter (mg/m3).
A. Monitor Sample Information
Sampling Rate
The (*) compounds in the Sampling Guide tables have been subjected to an extensive amount of laboratory work to verify the sampling rate. The sampling rates given for the remaining compounds in this table were determined from empirical relationships as outlined in a publication on Sampling Rate Validation, All sampling rates have an accuracy of 5%. The sampling rates are tabulated as either cubic centimeters/minute or micrograms/ppm-hour.
Capacity
The capacity of the monitor for each individual compound is a function of molecular structure, vapor pressure, environmental conditions, etc. The capacity is stated in terms of weight (milligrams). For a single contaminant, if the analyst finds the weight collected by the monitor is greater than the defined capacity, then the validity of the sample should be questioned.
When sampling multiple contaminants, the combined weights of the contaminants collected should not exceed the defined value for the single contaminant with the lowest capacity.
Recovery Coefficients (Desorption Efficiency)
The collected sample is removed from the activated carbon wafer for analysis by desorption with carbon disulfide (CS2) or other suitable solvents. In order for the laboratory analyst to determine accurately the amount of contaminant collected by the adsorbent, it is necessary to know the efficiency of the desorption process. The recovery coefficient or desorption efficiency is determined by adding a known weight of contaminant onto the adsorbent and measuring the weight of contaminant in the desorbing solvent. The recovery coefficient is calculated by dividing the recovered weight by the known weight. It is recommended that each analytical laboratory determine recovery coefficients according to the procedure outlined by the 3M laboratory contained in the Analysis Guide as "Recommended Procedure for Determination of Recovery Coefficients." Recovery coefficients determined by the 3M laboratory are tabulated in the following tables.
B. Procedure to Calculate Contaminant Concentrations
The time-weighted-average concentration of the environment sampled can be calculated by knowing the length of the sampling period, the contaminant weight determined by gas chromatography, the recovery coefficient and the calculation constant either A or B, The calculation constant A is used to calculate the concentration when expressed in units of milligrams per cubic meter (mg/m3) and constant B when expressed in units of parts per million (ppm). The calculation constant A and B have been determined for every contaminant in the Analysis Guide by the following expressions:
A = 1000 Sampling Rate
B = 1000x
(24.45)
(Sampling Rate) x (Molecular Weight)
1 3H 106383
The contaminant concentration can be calculated with the following information: Sampling Information
Contaminant Length of Sampling Period (min.) t
Contaminant Information from Tables in Analysis Guide Calculation Constant A or B
Analytical Results
Contaminant weight recovered W (Micrograms) Recovery Coefficient (r)
The time-weighted-average concentration in milligrams per cubic meter of the contaminant in the environment sampled can be calculated from the following expression:
Cfmg/m3) -
W (micrograms) xA r x t (minutes)
The time-weighted-average concentration in parts per million (ppm) of the contaminant can be calculated from the following expression:
C(ppm) =
W (micrograms) xB rxt (minutes)
The above expressions calculate the time-weighted-average concentrations at a sampling temperature of 25C (298K) and pressure of 760 mm. When sampling at other environmental conditions, the above expressions need to be corrected only for variations in temperature. The above expressions can be multiplied by the following temperatures correction factors (CFT) for samples collected at temperatures oth r than 25C (77F).
Sampling (C)
44 37 31 25 19 13
7 2 -3 -8
Temperature (F)
111 99 88 77 66 55 45 36 27 18
Temperature Correction Factor
(CFT)
.97 .98 .99 1.00 1.01 1.02 1.03 1.04 1.05 1.06
From the above table, every 10-11 above or below 77F requires a one percent correction to the calculated time-weighted-average concentration.
If the temperature correction is desired, the time weighted average concentration can be calculated by the following expression:
C(mg/m3) = C(ppm) =
W(microgramsj___ XAxCFT r x t (minutes)
W (micrograms) r x t (minutes)
x B x CFT
3H 1063S
2
Example Calculation
Contaminant Length of Sampling Period (t) Temperature (T) Calculation Constant A
or B Contaminant Weight Recovered (W) Recovery Coefficient(r)
Benzene 420 minutes 75F 28.2
8.83
27.2 micrograms 1.02
Using Calculation Constant A:
C(mg/m3) =
VA______ ______
(1.02) (420)
x 28.2
C = 1.79 mg/m3
Using Calculation Constant B:
C (ppm) =
--------- ---2---------(1.02) (4.20)
x 8.83
C = .56 ppm
3M 106385
3
Acetone* Acetonitrile Acrylonitrile Allyl Alcohol Allyl Chloride n-Amyl Acetate* s-Amyl Acetate n-Amyl Alcohol* i-Amyl Alcohol* s-Amyl Alcohol Benzene* Benzyl Chloride Bromoform Butadiene n-Butyl Acetate
s-Butyl Acetate t-Butyl Acetate Butyl Acrylate Butyl Alcohol* s-Butyl Alcohol
t-Butyl Alcohol Butyl Cellosolve*
(2-Butoxyethanol) Butyl Glycldyl Ether (BGE) p-tert-Butyltoluene*
Camphor Carbon Disulfide Carbon Tetrachloride* Cellosolve*
(2-Ethoxyethanol) Cellosolve Acetate*
(2-Ethoxyethyl Acetate)
Chlorobenzene* o-Chlorostyrene o-Chlorotoluene Chlorobromomethane* Chloroform
1 -Chloro-1 -nitropropane Chloroprene
(2-Chloro-1,3-butadiene) Cumene* Cyclohexane* Cydohexanol*
Cyclohexanone* Cyclohexene* Diacetone Alcohol* o-DIchlorobenzene* p-Dichlorobenzene*
1,1 Dichloroethane 1,2 Dichloroethylene* 1,1 Dichloro-1-nitroethane Dichloroethyl Ether
+ Methylene Chionde as the solvent
ANALYSIS GUIDE
Sampling Rata
(cc/mln)
40,1 .9 48.2 43.8 40.4 35.1 26.0 .5 27.2 31.2 .4 32.3 + .4 32.3 35.5 .6 27.2 29.3 42.8 31.6 28.6 29.4 28.7 34.3 .7 34.8 35.2
28.2 .6 27.0 20.7 .4 21.4 42.8 30.2 .4
32.4 .9
26.6 .4 29.3 .6 26.0 27.3 34.4 .9 33.5 30.4
32.2 24.5 .9 32.4 .7 29.5 .3 28.9 .3 32.3 .4 28.2 .4 27.8 * .6 27.8 .6 33.2 35.2 .5 28.5 26.1
Capacity (mg)
3 14 11 20
1 >25 >25 >25 >25 >25
13 >25 >25
.4 25 >25 19 >25 >25 19 13
>25 >25 >25 >25
1 14
>25
>25 >25 >25 >25
10 7
>25
5 >25
22 >25 >25
22 >25 >25 >25
4 1 >25 >25
Coefficient
.87 -- -- -- -- 1.08 -- 1.00 + .99 + .99 + 1.02 1.05 1.05 -- 1.04 1.07 1.05 -- .98 + .97 + --
.86 -- 1.10 -- -- 1.05
.78
1.03 1.00
-- -- 1.00 .98 --
_
.96 1.07 1.00 +
.97 1.02 1.04 +
.95 .95 -- .99
--_
Calculation Constant
A, (mg/m3)
B (ppm)
24.9 20.8
10.51 12.37
22.8 24.75
10.53 10.43
28.5
9.05
38.6
7.26
36.8
6.91
32.1 8.91
31.0
8.63
31.0
8.60
28.2
8.83
36.8 34.1 23.4 31.7
7.08 3.30 10.53 6.67
35.0
7.37
34.0
7.17
34.8
6.66
29.2 28.7
9.63 9.44
28.4
9.39
35.5 37.0 48.3 46.7 23.4 33.1
7.35 6.97 7.98
7.52 7.52 5.26
30.9
8.39
37.6 34.1 38.5 36.6 29.1 29.9 32.9
6.96 7.38 6.77 7.05 5.51 6.13 6.49
31.1 40.8 30.9 32.7
34.6 31.0 35.5 36.0 36.0
30.1 28.4 35.1 38.3
8.53 8.32 8.98 8.48
8.63 9.23 7.47 5.98 5.98 7.44 7.16 5.96 6.55
3H 1063S6
4
Diisobutyl Ketone*
Dimethyl Formamide p-Dioxane Dipropylene Glycol Methyl Ether
Enflurane (2-Chloro-1,1,2 trifluoroethyl difluoromethyl ether)
Epichlorohydrin (1 -Chloro-2,3-epoxy-propane)
Ethyl Acetate*
Ethyl Acrylate Ethyl Alcohol Ethyl Benzene
Ethyl Bromide*
Ethyl Butyl Ketone (3-Heptanone)
Ethyl Ether
Ethyl Formate Ethylene Chlorohydrin
(2-Chloroethanol)
Ethylene Dibromide* (1,2-Dibromomethane)
Ethylene Dichloride* (1,2-Dichloroethane)
Furfural
Furfuryl Alcohol
Glycidol (2,3-Epoxy-1 -propanol)
Halothane (2-Bromo-2-chloro-1,1,1 trifluoroethane)
Heptane*
Hexachloroethane
Hexane*
s-Hexyl Acetate
Isoamyl Acetate
Isoamyl Alcohol*
Isobutyl Acetate* Isobutyl Alcohol*
Isophorone*
Isopropyl Acetate
Isopropyl Alcohol
Isopropyl Ether Isopropyl Glycidyl Ether
Mesityl Oxide*
Mesitylene* (Trimethyl Benzene)
Methyl Acetate*
Methyl Acrylate Methylal
(Dimethyoxymethane)
Methyl Amyl Ketone (2-Heptanone)
Methyl Bromide
Methyl Butyl Ketone* (2-Hexanone)
Methyl Isobutyl Ketone* (Hexanone)
Methyl Cellosolve* (2-Methoxyethanol)
+ Mothyton* Chtonde as the solvent
ANALYSIS GUIDE
Sampling Rate
(cc/min)
24,6 .6 32.4 34.5 25.3
28.3
29.6 34.5 .6 32.2 51.2 27.3 36.4 .3
28.0 36.8 38.8
33.9
29.6 + .4
33.2 .7 34.3 32.6
37.1
30.2 28.9 s .7 26.7 32.0 .7 28.1 27.2 32.3 .4 31.0 .3 35.9 + .7 21.7 .7 31.7 39.4 31.2 29.1 31.2 1.2
26.3 .7 37.0 .6 35.8
37.9
27.9 46.5
29.7 .7
30.0 .4
36.3 .4
Capacity (mg)
>25 >25 >25 >25
Recovery Coefficient
1.07 -- --
4
>25 10 19 12
>25 1
>25 .4 1
>25
>25
18 >25 >25
>25
--
.95 1.01
-- -- -- 1.03
--
-- -- 1.04
1.02 --
--
4 >25 >25
18 >25 >25 >25 >25 >25 >25
15 17 10 >25 >25
>25 2
11
1
>25 .5
>25
>25
>25
1.08 --
1.05
__
-- 1.03 +
-- 1.02 + 1.03 + 1.05 +
-- -- -- .99
1.06 1.00
--
--
_
--
1.00
1.06
.75
5
Calculation Constant
A (mg/m3)
B (ppm)
40.7
7.00
30.9 29.0 39.5
10.34 8.05 6.53
35.3
33.8 29.0 31.1 19.5 36.6 27.5
35.7 27.2 25.8
29.5
33.8
30.1 32.8 30.7
27.0
4.68
8.88 8.05 7.59 10.38 8.45 6.16
7.66 8.98 8.52
8.90
4.39
7.44 8.35 7.65
8.91
33.1 34.6 37.5 31.3 35.6 36.8 31.0 32.3 27.9 46.1 31.5 25.4 33.0 34.4 32.1
38.0 27.0 27.9
26.4
35.8 21.5
33.7
33.3
27.5
5.96 8.46 3.86 8.88 6.04 8.64 8.60 6.80 9,20 8.16 7.56 10.34 7.91 7.24 8.00
7.75 8.93 7.94
8.49
7.69 5.53
8.23
8.15
8 86
3M 106387
Methyl Cellosolve Acetate* (Ethylene Qlycol Methyl Ether Acetate)
Methyl Chloroform' Methyl Cyclohexane* Methyl Cydohexanol
Methyl Ethyl Ketone* (2-Butanone)
Methyl Formate 5-Methyl>3-heptanone
(Ethyl Amyl Ketone) Methyl Iodide Methyl Isobutyl Carbinol
(Methyl Amyl Alcohol)
Methyl Isoamyl Ketone Methyl Methacrylate Alpha Methyl Styrene* Methylene Chloride*
(Dichloromethane) Naphtha (VM&P)*
Naphthalene Nonane* Octane* Pentane* 2-Pentanone*
(Methyl Propyl Ketone)
Perchloroethylene* Phenyl Ether Phenyl Qlycldyl Ether n-Propyl Acetate* n-Propyl Alcohol*
Propylene Dichloride* (1,2 Dichloropropane)
Propylene Glycol Monomethyl Ether n-Propyl Nitrate
Stoddard Solvent Styrene* 1,1,2,2-Tetrachloroethane 1,1,1,2-Tetrachloro-2,2-dlfluoroethane 1,1,2,2-Tetrachloro-1,2-dlfluoroethane
Tetrahydrofuran Toluene* 1,1,2-Triehloroethane* Trichloroethylene* 1,1,2-Trichloro-l ,2,2-trifluoroethane
1,2,3-Trichloropropane Vinyl Acetate Vinyl Bromide Vinyl Chloride* Vlnylidene Chloride
Vinyl Toluene Xylene*
+ Methylene Chloride as the solvent
ANALYSIS GUIDE
Sampling Rate
(cc/mtn)
29.0 * ,5 30.9 .3 28.9 .4 28.8
36.3 + .9 45.0
26.4 36.7
29.2 28.0 31.8 25.0 .5
37.9 .3 33.2 .7 24.6 24.6 .6 26.6 .6 35.3 .9
33.0 .5 28.3 * .5 24.1 20.8 30.1 * .5 39.7 .7
30.6 .4 32.4 33.3 24.3 26.8 s. .8 28.4 29.7 28.2 37.2 31.4 .6 29.7 .6 31.1 .2 31.4 27.4 35.8 41.0 40.8 .5 38.4 26.8 27.3 .5
Capacity (mg)
Coefficient
>25 12
>25 >25
12 .2
>25
2
>25 >25
24 >25
2 20 >25 >25 >25
7
23 >25 >25 >25
21 25
25 >25 >25 >25 >25 >25
5 5 8 25 >25 20 .5 >25 7 .3 .04 .5 >25 >25
1.00 1.03 1.05
1.00 --
---
--
_
-- -- 1.01
.90 1.04
-- 1.09 1.08 1.02
1.03 1.05
-- -- .93 +
1.04 -- -- -- 1.08 .89 --
--
-- 1.05 1.02 1.00
--
-- 1.02
-- 1.02
-- -- 1.07
Calculation Constant
A (mg/m*)
B (PP1)
34.5 32.4 34.6 34.7
7.14 5.95 8.63 7.45
27.5 22.2
9.35 9.06
37.9 27.3
34.2 35.7 31.5 40.0
26.9 30.1 40.7 40.7 37.6 28.3
30.3 35.3 41.5 48.1 33.3 25.2
32.7 32.3 30.0 41.2 37.3 35.2 33.9 35.5 26.8 31.8 33.7 32.2 31.9 36.5 27.9 24.4 24.4 25.9 37.3 36.6
7.24 4.69
8.21 7.66 7.69 8.29
7.59 7.36 7.76 9.04 8.06 9.62
8.62 5.20 5.97 7.84 7.96 10.26
7.07 7.58 8.25 6.99 8.77 5.12 4.06 4.25 9.13 8.46 6.19 6.00 4.16 6.07 7.94 5.57 9.56 6.53 7.73 8.45
3M 10638^
6
3M Organic Vapor Monitor # 3500
Analysis Guide
ANOTHER STEP TOWARDS BETTER OCCUPATIONAL HEALTH AND SAFETY R35AG(611.)R
Occupational Health and Safety Products Dlvlslon/3M
220-7W, 3M Center St. Paul, Minnesota 55144
Litho In U.S.A.
3M 106389
3M Organic Vapor M nitor
Analysis Guide
USE OF THE ANALYSIS GUIDE TABLES:
The Analysis Guide is designed for the customer involved in the analysis of the 3M #3500 Organic Vapor Monitor by the gas chromatograph. The following tables summarize the 3M monitor sampling rate, capacity, recovery coefficient and calculation constants. The analysis guide provides the necessary information to calculate the time-weighted-average concentration in parts per million (ppm) or milligrams per cubic meter (mg/m3).
A. Monitor Sample Information
Sampling Rate
The (*) compounds in the Sampling Guide tables have been subjected to an extensive amount of laboratory work to verify the sampling rate. The sampling rates given for the remaining compounds in this table were determined from empirical relationships as outlined in a publication on Sampling Rate Validation. All sampling rates have an accuracy of 5%. The sampling rates are tabulated as either cubic centimeters/minute or micrograms/ppm-hour.
Capacity
The capacity of the monitor for each individual compound is a function of molecular structure, vapor pressure, environmental conditions, etc. The capacity is stated in terms of weight (milligrams). For a single contaminant, if the analyst finds the weight collected by the monitor is greater than the defined capacity, then the validity of the sample should be questioned.
When sampling multiple contaminants, the combined weights of the contaminants collected should not exceed the defined value for the single contaminant with the lowest capacity.
Recovery Coefficients (Desorption Efficiency)
The collected sample is removed from the activated carbon wafer for analysis by desorption with carbon disulfide (CS2) or other suitable solvents. In order for the laboratory analyst to determine accurately the amount of contaminant collected by the adsorbent, it is necessary to know the efficiency of the desorption process. The recovery coefficient or desorption efficiency is determined by adding a known weight of contaminant onto the adsorbent and measuring the weight of contaminant in the desorbing solvent. The recovery coefficient is calculated by dividing the recovered weight by the known weight. It is recommended that each analytical laboratory determine recovery coefficients according to the procedure outlined by the 3M laboratory contained in the Analysis Guide as "Recommended Procedure for Determination of Recovery Coefficients." Recovery coefficients determined by the 3M laboratory are tabulated in the following tables.
B, Procedure to Calculate Contaminant Concentrations
The time-weighted-average concentration of the environment sampled can be calculated by knowing the length of the sampling period, the contaminant weight determined by gas chromatography, the recovery coefficient and the calculation constant either A or B. The calculation constant A is used to calculate th concentration when expressed in units of milligrams per cubic meter (mg/m3) and constant B when expressed in units of parts per million (ppm). The calculation constant A and B have been determined for every contaminant in the Analysis Guide by the following expressions:
A = 1000
Sampling Rate
B = 1000
x (24,45)
(Sampling Rate) x (Molecular Weight)
1 3M 106390
The contaminant concentration can be calculated with the following information:
Sampling Information
Contaminant Length of Sampling Period (min.) t
Contaminant Information from Tables in Analysis Guide Calculation Constant A or B
Analytical Results
Contaminant weight recovered W (Micrograms) Recovery Coefficient (r)
The time-weighted-average concentration in milligrams per cubic meter of the contaminant in the environment sampled can be calculated from the following expression:
Cfmg/m3) = W (micrograms) r x t (minutes)
xA
The time-weighted-average concentration in parts per million (ppm) of the contaminant can be calculated from the following expression:
C(ppm) =
_W (micrograms) xB rxt (minutes)
The above expressions calculate the time-weighted-average concentrations at a sampling temperature of 25C (298K) and pressure of 760 mm. When sampling at other environmental conditions, the above expressions need to be corrected only for variations in temperature. The above expressions can be multiplied by the following temperatures correction factors (CFT) for samples collected at temperatures other than 25C (77F).
Sampling
(C)
44 37 31 25 19 13
7 2 -3 -8
Temperature
(F)
111 99 88 77 66 55 45 36 27 18
Temperature Correction Factor
(CFT)
.97 .98 .99 1.00 1.01 1.02 1.03 1.04 1.05 1.06
From the above table, every 10-11 above or below 77F requires a one percent correction to the calculated time-weighted-average concentration.
If the temperature correction is desired, the time weighted average concentration can be calculated by the following expression:
C(mg/m3) = ___ W (micrograms)___ XAxCFT r x t (minutes)
C(ppm) =
W (micrograms) r x t (minutes)
x B x CFT
3M 1063910
2
Example Calculatl n
Contaminant Length of Sampling Period (t) Temperature (T) Calculation Constant A
or B Contaminant Weight Recovered (W) Recovery Coefficient(r)
Benzene 420 minutes 75F 28.2
8.83
27.2 micrograms 1.02
Using Calculation Constant A:
C(mg/m3) =
--------- --------------(1.02) (420)
x 28.2
C = 1.79 mg/m3
Using Calculation Constant B:
C (ppm) =
--------- --------------- x 8.83 (1.02) (4.20)
C = .56 ppm
3H 106392
3
Acetone* Acetonitrile Acrylonitrile Allyl Alcohol Allyl Chloride
n-Amyl Acetate* s-Amyl Acetate n-Amyl Alcohol* i-Amyl Alcohol* s-Amyl Alcohol
Benzene* Benzyl Chloride Bromoform Butadiene n-Butyl Acetate
$-Butyl Acetate t-Butyt Acetate Butyl Acrylate Butyl Alcohol* s-Butyl Alcohol
t-Butyl Alcohol Butyl Cellosolve*
(2-Butoxyethanol) Butyl Glycidyl Ether (BGE) p-tert-Butyltoluene*
Camphor Carbon Disulfide Carbon Tetrachloride* Cellosolve*
(2-Ethoxyethanol) Cellosolve Acetate*
(2-Ethoxyethyl Acetate)
Chlorobenzene* o-Chlorostyrene o-Chlorotoluene Chlorobromomethane* Chloroform
1 -Chloro-1 -nitropropane Chloroprene
(2-Chloro-1,3-butadiene) Cumene* Cyclohexane* Cyclohexanol*
Cyclohexanone* Cyclohexene* Diacetone Alcohol* o-Dichlorobenzene* p-Dichlorobenzene*
1,1 Dichloroethane 1,2 Dichloroethylene* 1,1 Dichloro-1-nitroethane Dichioroethyl Ether
^ Methytow ChioridA as the solvent
ANALYSIS GUIDE
Sampling Rate
(cc/mln)
40.1 .9 48.2 43.8 40.4 35.1 26.0 * .5 27.2 31.2 + .4 32.3 .4 32.3 35.5 .6 27.2 29.3 42.8 31.6 28.6 29.4 28.7 34.3 .7 34.8 35.2
28.2 .6 27.0 20.7 .4 21.4 42.8 30.2 .4
32.4 .9
26.6 .4 29.3 * .6 26.0 27.3 34.4 .9 33.5 30.4
32.2 24.5 .9 32.4 2 .7 29.5 .3 28.9 .3 32.3 .4 28.2 .4 27.8 .6 27.8 .6 33.2 35.2 2 .5 28.5 26.1
Capacity (mg)
3 14 11 20
1 >25 >25 >25 >25 >25
13 >25 >25
.4 25 >25 19 >25 >25 19 13
>25 >25 >25 >25
1 14
>25
>25 >25 >25 >25
10 7
>25
5 >25
22 >25 >25
22 >25 >25 >25
4 1 >25 >25
Recovery Coefficient
.87
_
-- -- -- 1.08 -- 1.00 + .99 + .99 + 1.02 1.05 1.05 -- 1.04 1.07 1.05
.98 + .97 + --
.86 -- 1.10 -- -- 1.05
.78
1.03 1.00
-- -- 1.00 .98 --
-- .96 1.07 1.00 + .97 1.02 1.04 + .95 .95 -- .99
--
--
Calculation Constant
A (mg/m3)
B (ppm)
24.9 20.8
10.51 12.37
22.8 24.75
10.53 10.43
28.5
9.05
38.6 36.8
7.26 6.91
32.1 8.91
31.0
8.63
31.0
8.60
28.2
8.83
36.8 34.1
7.08 3.30
23.4 31.7
10.53 6.67
35.0 34.0
7.37 7.17
34.8
6.66
29.2 28.7
9.63 9.44
28.4
9.39
35.5 37.0 48.3
46.7 23.4 33.1
7.35 6.97 7.98
7.52 7.52 5.26
30.9
8.39
37.6 34.1 38.5 36.6 29.1 29.9 32.9
6.96 7.38 6.77 7.05 5.51 6.13 6.49
31.1 40.8 30.9 32.7
34.6 31.0 35.5 36.0 36.0 30.1 28.4 35.1 38.3
8.53 8.32 8.98 8.48
8.63 9.23 7.47 5.98 5.98 7.44 7.16 5.96 6.55
3M 106393
4
Diisobutyl Ketone* Dimethyl Formamide
p-Dioxane Dipropylene Glycol Methyl Ether
Enflurane (2*Chloro-1,1,2 trifluoroethyl difluoromethyl ether)
Epichlorohydrin (1 -Chloro-2,3-epoxy-propane)
Ethyl Acetate* Ethyl Acrylate
Ethyl Alcohol Ethyl Benzene
Ethyl Bromide*
Ethyl Butyl Ketone (3-Heptanone)
Ethyl Ether
Ethyl Formate Ethylene Chlorohydrin
(2-Chioroethanol) Ethylene Dibromide*
(1,2*Dibromomethane)
Ethylene Dichloride* (1,2-Dichloroethane)
Furfural Furfuryl Alcohol
Glycidol (2,3-Epoxy-1-propanol)
Malothane (2-Bromo-2-chloro-1,1,1 trifluoroethane)
Heptane* Hexachloroethane
Hexane*
s-Hexyl Acetate
Isoamyl Acetate
Isoamyl Alcohol*
Isobutyl Acetate*
Isobutyl Alcohol*
Isophorone*
Isopropyl Acetate
Isopropyl Alcohol Isopropyl Ether Isopropyl Glycidyl Ether
Mesityl Oxide*
Mesitylene* (Trimethyl Benzene)
Methyl Acetate* Methyl Acrylate
Methylal (Dimethyoxymethane)
Methyl Amyl Ketone (2-Heptanone)
Methyl Bromide Methyl Butyl Ketone*
(2-Hexanone) Methyl Isobutyl Ketone*
(Hexanone) Methyl Cellosolve*
(2*Methoxyethanol)
+Mthy!*ne Chloride as the solvent
ANALYSIS GUIDE
Sampling Rata
(cc/min)
24.6 .8 32.4 34.5 25.3
28.3
29.6 34.5 + .6 32.2 51.2 27.3 36.4 .3
28.0 36.8 38.8
33.9
29.6 .4
33.2 .7 34.3 32.6
37.1
30.2 28.9 * .7 26.7 32.0 .7 28.1 27.2 32.3 .4 31.0 .3 35.9 .7 21.7 .7 31.7 39.4 31.2 29.1 31.2 1.2
26.3 * .7 37.0 i .6 35.8
37.9
27.9 46.5
29.7 .7
30.0 .4
36.3 .4
Capacity (mg)
>25 >25 >25 >25
4
>25 10 19 12
>25 1
>25 .4 1
>25
>25
18 >25 >25
>25
4 >25 >25
18 >25 >25 >25 >25 >25 >25
15 17 10 >25 >25
>25 2
11
1
>25 .5
>25
>25
>25
Recovery Coefficient
1.07 -- -- --
--
.95 1.01
-- -- -- 1.03
-- --
1.04
1.02 --
--
_
1.08 --
1.05 -- --
1.03 + --
1.02 + 1.03 + 1.05 +
-- -- -- .99
1.06 1.00
--
--
--
1.00
1.06
.75
5
Calculation Constant
A (mg/m3)
40.7 30.9
B
__ (PP1")
7.00
10.34
29.0
8.05
39.5
6.53
35.3
33.8 29.0 31.1 19.5 36.6 27.5
35.7 27.2 25.8
29.5
33.8
30.1 32.8 30.7
27.0
4.68
8.88 8.05 7.59 10.38 8.45 6.16
7.66 8.98 8.52
8.90
4.39
7.44 8.35 7.65
8.91
33.1 34.6 37.5 31.3 35.6 36.8 31.0 32.3 27.9 46.1 31.5 25.4 33.0 34.4 32.1
38.0 27.0 27.9
26.4
5.96 8.46 3.86 8.88 6.04 8.64 8.60 680 9 20 8.16 7.56 10.34 7.91 7.24 8.00
7.75 8.93 7.94
8.49
35.8 21.5
33.7
33.3
27.5
7.69 5.53
8.23
8.15 8.86
3H 106394
Methyl Cellosolve Acetate* (Ethylene Glycol Methyl Ether Acetate)
Methyl Chloroform* Methyl Cyclohexane* Methyl Cydohexanol
Methyl Ethyl Ketone* (2-Butanone)
Methyl Formate 5-Methyl-3-heptanone
(Ethyl Amyl Ketone) Methyl Iodide Methyl Isobutyl Carbinol
(Methyl Amyl Alcohol)
Methyl Isoamyl Ketone Methyl Methacrylate Alpha Methyl Styrene* Methylene Chloride*
(Dichloromethane) Naphtha (VM&P)*
Naphthalene Nonane* Octane* Pentane* 2-Pentanone*
(Methyl Propyl Ketone)
Perchloroethylene* Phenyl Ether Phenyl Glycidyl Ether n-Propyl Acetate* n-Propyl Alcohol*
Propylene Dichloride* (1,2 Dichloropropane)
Propylene Glycol Monomethyl Ether n-Propyl Nitrate
Stoddard Solvent Styrene* 1,1,2,2-Tetrachloroethane 1,1,1,2-Tetrachloro-2,2-difluoroethane 1,1,2.2-Tetrachloro-1,2-difluoroethane
Tetrahydrofuran
Toluene* 1,1,2-Trichloroethane* Trlchloroethyiene* 1,1,2-Trichloro-l ,2,2-trlfluoroethane
1,2,3-Trichloropropane Vinyl Acetate Vinyl Bromide Vinyl Chloride* Vinylidene Chloride
Vinyl Toluene Xylene*
+ Mrtiytana Chtorid* u ttw jolvant
ANALYSIS GUIDE
SampHng Hate
(oc/min)
29.0 .5 30.9 .3 28.9 .4 28.8
36.3 .9 45.0
26.4 36.7
29.2 28.0 31.8 25.0 .5
37.9 .3 33.2 .7 24.6 24.6 .6 26.6 .6 35.3 .9
33.0 .5 28.3 .5 24.1 20.8 30.1 .5 39.7 .7
30.6 .4 32.4 33.3 24.3 26.8 .8 28.4 29.7 28.2 37.2 31.4 .6 29.7 .6 31.1 .2 31.4 27.4 35.8 41.0 40.8 .5 38.4 26.8 27.3 .5
Capacity (*)
CnO, f,mmCi -IM- I--K*
>25 12
>25 >25
12 .2
>25 .2
>25 >25
24 >25
2 20 >25 >25 >25
7
23 >25 >25 >25
21 25
25 >25 >25 >25 >25 >25
5 5 8 25 >25 20 .5 >25 7 .3 .04 .5 >25 >25
1.00 1.03 1.05
--
1.00 --
--
--
-- -- 1.01
.90 1.04
-- 1.09 1.08 1.02
1.03 1.05
-- -- .93+
1.04 --
--
1.08 .89 -- -- --
1.05 1.02 1.00
-- -- 1.02 -- 1.02
-- 1.07
Calculation Constant
(mg/m3)
B (PP"<)
34.5 32.4 34.6 34,7
7.14 5.95 8.63 7.45
27,5 22.2
37.9 27.3
34.2 35.7 31.5 40.0
26.9 30.1 40.7 40.7 37.6 28.3
9.35 9.06
7.24 4.69
8.21 7.66 7.69 8.29
7.59 7.36 7.76 9.04 8.06 9.62
30.3
35.3 41.5 48.1 33.3 25.2
8.62
5.20 5.97 7.84 7.96 10.26
32.7 32.3 30.0 41.2 37.3 35.2 33.9 35.5
26.8 31.8 33.7 32.2 31.9 36.5 27.9 24.4 24.4 25.9
37.3 36.6
7.07 7.58 8.25
6.99 8.77 5.12 4.06 4.25
9.13 8.46 6.19 6.00 4.16 6.07 7.94 5.57 9.56 6.53
7.73 8.45
3H 106395
3M Organic Vapor Monitor # 3500
Analysis Guide
ANOTHER STEP TOWARDS BETTER OCCUPATIONAL HEALTH AND SAFETY R35AG(611.)R
Occupational Health and Safety Products Dlvision/3M
220-7W, 3M Center St. Paul, Minnesota 55144
Litho in U S A,
3M
3M 106396
3M Organic Vapor Monitor
Analysis Guide
USE OF THE ANALYSIS GUIDE TABLES:
The Analysis Guide is designed for the customer involved in the analysis of the 3M #3500 Organic Vapor Monitor by the gas chromatograph. The following tables summarize the 3M monitor sampling rate, capacity, recovery coefficient and calculation constants. The analysis guide provides the necessary information to calculate the time-weighted-average concentration in parts per million (ppm) or milligrams per cubic meter (mg/m3).
A. Monitor Sample Information
Sampling Rate
The (*) compounds in the Sampling Guide tables have been subjected to an extensive amount of laboratory work to verity the sampling rate. The sampling rates given for the remaining compounds in this table were determined from empirical relationships as outlined in a publication on Sampling Rate Validation. All sampling rates have an accuracy of 5%. The sampling rates are tabulated as either cubic centimeters/minute or micrograms/ppm-hour.
Capacity
The capacity of the monitor for each individual compound is a function of molecular structure, vapor pressure, environmental conditions, etc. The capacity is stated in terms of weight (milligrams). For a single contaminant, if the analyst finds the weight collected by the monitor is greater than the defined capacity, then the validity of the sample should be questioned.
When sampling multiple contaminants, the combined weights of the contaminants collected should not exceed the defined value for the single contaminant with the lowest capacity.
Recovery Coefficients (Desorption Efficiency)
The collected sample is removed from the activated carbon wafer for analysis by desorption with carbon disulfide (CS2) or other suitable solvents. In order for the laboratory analyst to determine accurately the amount of contaminant collected by the adsorbent, it is necessary to know the efficiency of the desorption process. The recovery coefficient or desorption efficiency is determined by adding a known weight of contaminant onto the adsorbent and measuring the weight of contaminant in the desorbing solvent. The recovery coefficient is calculated by dividing the recovered weight by the known weight. It is recommended that each analytical laboratory determine recovery coefficients according to the procedure outlined by the 3M laboratory contained in the Analysis Guide as "Recommended Procedure for Determination of Recovery Coefficients." Recovery coefficients determined by the 3M laboratory are tabulated in the following tables.
B. Procedure to Calculate Contaminant Concentrations
The time-weighted-average concentration of the environment sampled can be calculated by knowing the length of the sampling period, the contaminant weight determined by gas chromatography, the recovery coefficient and the calculation constant either A or B. The calculation constant A is used to calculate the concentration when expressed in units of milligrams per cubic meter (mg/m3) and constant B when expressed in units of parts per million (ppm). The calculation constant A and B have been determined for every contaminant in the Analysis Guide by the following expressions:
A = 1000
Sampling Rate
B = 1000
x (24.45)
(Sampling Rate) x (Molecular Weight)
3H 106397
1
The contaminant concentration can be calculated with the following information:
Sampling Information
Contaminant Length of Sampling Period (min.) t
Contaminant Information from Tables in Analysis Guide Calculation Constant A or B
Analytical Results
Contaminant weight recovered W (Micrograms) Recovery Coefficient (r)
The time-weighted-average concentration in milligrams per cubic meter of the contaminant in the environment sampled can be calculated from the following expression:
Cfmg/m3) =
W (micrograms) xA rxt (minutes)
The time-weighted-average concentration in parts per million (ppm) of the contaminant can be calculated from the following expression:
C(ppm) =
W (micrograms) xB r x t (minutes)
The above expressions calculate the time-weighted-average concentrations at a sampling temperature of 25C (298K) and pressure of 760 mm. When sampling at other environmental conditions, the above expressions need to be corrected only for variations in temperature. The above expressions can be multiplied by the following temperatures correction factors (CFT) for samples collected at temperatures other
than 25C (77F).
Sampling
PC)
44 37 31 25 19 13
7 2 -3 -8
Temperature (SF)
ill 99 88 77 66 55 45 36 27 18
Temperature Correction Factor
(CFT)
.97 .98 .99 1.00 1.01 1.02 1.03 1.04 1.05 1.06
From the above table, every 10-11 above or below 77F requires a one percent correction to the calculated time-weighted-average concentration.
If the temperature correction is desired, the time weighted average concentration can be calculated by the following expression:
C(mg/m3) = ___ W (micrograms)___ XAxCFT r x t (minutes)
C(ppm) =
W (micrograms) r x t (minutes)
x B x CFT
3M 106398
2
Example Calculati n
Contaminant Length of Sampling Period (t) Temperature (T) Calculation Constant A
or B Contaminant Weight Recovered (W) Recovery Coefficient(r)
Benzen 420 minutes 75F 28.2
8.83
27.2 micrograms 1.02
Using Calculation Constant A:
C(mg/m3) =
--------- ?7,_--------(1.02) (420)
x28.2
C = 1.79 mg/m3
Using Calculation Constant B:
C (ppm) =
--------- ff7-_--------(1.02) (4.20)
x 8.83
C = .56 ppm
3 3M 106399
Acetone* Acetonitrile Acrylonitrile Allyl Alcohol Ally! Chloride
n-Amyl Acetate* s-Amyl Acetate n-Amyl Alcohol* i-Amyl Alcohol* s-Amyl Alcohol
Benzene* Benzyl Chloride Bromoform Butadiene n-Butyl Acetate
s-Butyl Acetate t-Butyl Acetate Butyl Acrylate Butyl Alcohol* s-Butyl Alcohol
t-Butyl Alcohol Butyl Cellosolve*
(2-Butoxyethanol) Butyl Glyddyl Ether (BGE) p-tert-Butyltoluene*
Camphor Carbon Disulfide Carbon Tetrachloride* Cellosolve*
(2-Ethoxyethanol) Cellosolve Acetate*
(2-Ethoxyethyl Acetate)
Chlorobenzene* o-Chlorostyrene o-Chlorotoluene Chlorobromomethane* Chloroform 1 -Chloro-i -nitropropane Chloroprene
(2-Chloro-1,3-butadlene) Cumene* Cyclohexane* Cyclohexanol*
Cyclohexanone* Cyclohexene* Diacetone Alcohol* o-Dichlorobenzene* p-Dichlorobenzene*
1,1 Dichloroethane 1,2 Dichloroethylene* 1,1 Dichloro-1-nitroethane Dichloroethyl Ether
+ Methylene Chionde as the solvent
ANALYSIS GUIDE
Sampling Rate
(cc/mln)
40.1 .9 48.2 43.8 40.4 35.1 26.0 .5 27.2 31.2 .4 32.3 .4 32.3 35.5 .6 27.2 29.3 42.8 31.6 28.6 29.4 28.7 34.3 * .7 34.8 35.2
28.2 .6 27.0 20.7 .4
21.4 42.8 30.2 * .4
32.4 .9
26.6 A 29.3 s .6 26.0 27.3 34.4 .9 33.5 30.4
32.2 24.5 .9 32.4 + .7 29.5 .3 28.9 .3 32.3 .4 28.2 .4 27.8 .6 27.8 .6 33.2 35.2 .5 28.5 26.1
Capacity (<"9)
3 14 11 20
1 >25 >25 >25 >25 >25
13 >25 >25
.4 25 >25 19 >25 >25 19 13
>25 >25 >25
>25 1
14
>25
>25 >25 >25 >25
10 7
>25
5 >25
22 >25 >25
22 >25 >25 >25
4 1 >25 >25
Coefficient
.87 -- -- -- -- 1.08 -- 1.00 + .99 + .99 + 1.02 1.05 1.05 -- 1.04 1.07 1.05 -- .98 + .97+ --
.86 -- 1.10 -- -- 1.05
.78
1.03 1.00
-- -- 1.00 .98 --
--
.96 1.07 1.00 +
.97 1.02 1.04 +
.95 .95 -- .99 -- --
Calculation Constant
(mg/m*)
B (ppm)
24.9 20.8 22.8 24.75 28.5
10.51 12.37 10.53 10.43
9.05
38.6 36.8 32.1 31.0 31.0 28.2 36.8 34.1 23.4 31.7
7.26 6.91 8.91 8.63 8.60
8.83 7.08 3.30 10.53 6.67
35.0 34.0 34.8 29.2 28.7
7.37 7.17 6.66 9.63 9.44
28.4
9.39
35.5 37.0 48.3 46.7 23.4 33.1
7.35 6.97 7.98
7.52 7.52 5.26
30.9
8.39
37.6 34.1 38.5 36.6 29.1 29.9 32.9
6.96 7.38 6.77 7.05 5.51 6.13 6.49
31.1 40.8 30.9 32.7
34.6 31.0 35.5 36.0 36.0
30.1 28.4 35.1 38.3
8.53 6.32 8.98 8.48 8.63 9.23 7.47 5.98 5.98 7.44 7.16 5.96 6.55
4 3M 1Q64Q
Diisobutyl Ketone* Dimethyl Formamide p-Dioxane Dipropylene Glycol Methyl Ether
Enflurane (2-Chloro-l .1,2 trifluoroethyl difluoromethvl ether)
Epichiorohydrin (1 -Chloro-2.3-epoxy-propane)
Ethyl Acetate* Ethyl Acrylate
Ethyl Alcohol Ethyl Benzene Ethyl Bromide*
Ethyl Butyl Ketone (3-Heptanone)
Ethyl Ether Ethyl Formate Ethylene Chlorohydrin
(2-Chioroethanol) Ethylene Dibromide*
(1,2-Dibromomethane)
Ethylene Dichloride* (1,2-Dichioroethane)
Furfural Furfuryl Alcohol
Glycidol (2,3-Epoxy-1 -propanol)
Haiothane (2-Bromo-2-chloro-1,1,1 trifluoroethane)
Heptane* Hexachloroethane
Hexane*
s-Hexyl Acetate Isoamyl Acetate
Isoamyl Alcohol* Isobutyl Acetate* Isobutyl Alcohol*
Isophorone*
Isopropyl Acetate Isopropyl Alcohol Isopropyl Ether Isopropyl Glycidyl Ether
Mesityl Oxide*
Mesitylene* (Trimethyl Benzene)
Methyl Acetate* Methyl Acrylate
Methyial (Dimethyoxymethane)
Methyl Amyl Ketone (2-Heptanone)
Methyl Bromide Methyl Butyl Ketone*
(2-Hexanone) Methyl Isobutyl Ketone*
(Hexanone) Methyl Cellosolve*
(2-Methoxyethanol)
+ M*thytene Chkyid* m trm *otv*nt
ANALYSIS GUIDE
Sampling Rate
(cc/mln)
Capacity (mg)
24.6 * .8 32.4 34.5 25.3
___ -
28J1 *
v /
>25 >25 >25 >25
4
29.6 34.5 A .6 32.2 51.2 27.3 36.4 .3
>25 10 19 12
>25 1
28.0 36.8 38.8
>25 .4 1
33.9
>25
29.6 .4
>25
33.2 A .7 34.3 32.6
18 >25 >25
371
y-
(\vp
30.2 '
28.9 * .7 26.7 32.0 A .7
28.1 27.2 32.3 a .4 31.0 + .3 35.9 + .7 21.7 * .7 31.7 39.4 31.2 29.1
31.2 1.2
>25
4 >25 >25
18 >25 >25 >25 >25 >25 >25
15 17 10 >25 >25
26.3 .7 37.0 * .6 ' 35.8
>25 2
11
37.9
1
27.9 46.5
>25 .5
29.7 .7
>25
30.0 a .4
>25
36.3 * .4
>25
5
Recovery Coefficient
1.07 -- -- --
--
.95 1.01
-- -- -- 1.03
1.04
1.02 --
--
-- 1.08
-- 1.05
-- -- 1.03 + -- 1.02 + 1.03 + 1.05 + -- -- -- .99
1.06 1.00
--
--
_
--
1.00
1.06
.75
Calculation Constant
A (mg/m3)
B (ppm)
40.7
7.00
30.9 29.0 39.5
10.34 8.05 6.53
35.3
33.8 29.0 31.1 19.5 36.6 27.5
35.7 27.2 25.8
29.5
33.8
30.1 32.8 30.7
27.0
4.68
888 8.05 7.59 10.38 8.45 6.16
7.66 8.98 8.52
8.90
4.39
7.44 8.35 7.65
8.91
33.1 34.6 37.5 31.3 35.6 36.8 31.0 32.3 27.9 46.1 31.5 25.4 33.0 34.4 32.1
38.0 27.0 27.9
26.4
5.96 8.46 3.86 8.88 6.04 8.64 8.60 6.80 9.20 8.16 7.56 10.34 7.91 7.24 8.00
7.75 8.93 7.94
8.49
35.8 21,5 33.7
33.3 27.5
7.69 5.53 8.23
8.15 8.86
3N 106401
Methyl Cellosolve Acetate* (Ethylene Glycol Methyl Ether Acetate)
Methyl Chtoroform* Methyl Cyclohexane* Methyl Cydohexanol
Methyl Ethyl Ketone* (2-Butanone)
Methyl Fonnate 5-Methyl-3-heptanone
(Ethyl Amyl Ketone) Methyl Iodide Methyl Isobutyl Carbinol
(Methyl Amyl Alcohol)
Methyl Isoamyl Ketone Methyl Methacrylate Alpha Methyl Styrene* Methylene Chloride*
(Dichloromethane) Naphtha (VM&P)*
Naphthalene Nonane* Octane* Pentane* 2-Pentanone*
(Methyl Propyl Ketone)
Perchloroethylene* Phenyl Ether Phenyl Glycidyl Ether n-Propyl Acetate* n-Propyl Alcohol*
Propylene Dlchlorlde* (1.2 Dichloropropane)
Propylene Glycol Monomethyl Ether n-Propyl Nitrate
Stoddard Solvent Styrene* 1.1,2,2-Tetrachloroethane 1,1,1,2'Tetrachloro-2,2-difluoroethane 1,1,2,2-Tetrachloro-1,2-dlfluoroethane
Tetrahydroturan Toluene* 1,1,2-Trichloroethane* Trichloroethylene* 1.1,2-Tnchloro-1,2.2-trtfluoroethane
1,2,3-Trichloropropane Vinyl Acetate Vinyl Bromide Vinyl Chloride* Vmylidene Chloride
Vinyl Toluene Xylene*
+Mtthyton* Chkmd* tha advent
ANALYSIS GUIDE
Sampling Rate
(cc/mln)
29.0 5 30.9 x .3 28.9 x .4 28.8
36.3 * .9 45.0
26.4 36.7
29.2 28.0 31.8 25.0 X .5
37.9 x .3 33.2 x .7 24.6 24.6 x .6 26.6 .6 35.3 x .9
33.0 x .5 28.3 X .5 24.1 20.8 30.1 * .5 39.7 x .7
30.6 x .4 32.4 33.3 24.3 26.8 x .8 28.4 29.7 28.2 37.2 31.4 X .6 29.7 X .6 31.1 x .2 31.4 27.4 35.8 41.0 40.8 x .5 38.4 26.8 27.3 x .5
Capacity (mg)
Coefficient
>25 12
>25 >25
12 .2
>25 .2
>25 >25
24 >25
2 20 >25 >25 >25
7
23 >25 >25 >25
21 25
25 >25 >25 >25 >25 >25
5 5 8 25 >25 20 .5 >25 7 .3 .04 .5 >25 >25
1.00 1.03 1.05
1.00 -- --
--
--
1.01 .90
1.04
1.09 1.08 1.02 1.03 1.05
--
.93+ 1.04
-- 1.08
.89 -- --
1.05 1.02 1.00
1.02
1.02
-- 1.07
Calculation Constant
(mg/m*)
8 (PPh)
34.5 32.4 34.6 34.7
7.14 5.95 8.63 7.45
27.5 22.2
37.9 27.3
34.2 35.7 31.5 40.0
26.9 30.1 40.7 40.7 37.6 28.3
30.3 35.3 41.5 48.1 33.3 25.2
9.35 9.06
7.24 4.69
8.21 7.66 7.69 8.29
7.59 7.36 7.76 9.04 8.06 9.62
8.62 5.20 5.97 7.84 7.96 10.26
32.7 32.3 30.0
41.2 37.3 35.2 33.9 35.5
26.8 31.8 33.7 32.2 31.9
36.5 27.9 24.4 24.4 25.9
37.3 36.6
7.07 7.58 8.25
6.99 8.77 5,12 4.06 4.25 9.13 8.46 6.19 8.00 4,16 6.07 7.94 5.57 9.56 6.53
7.73 8.45
3M 1064
6
3M Organic Vapor Monitor # 3500
Analysis Guide
ANOTHER STEP TOWARDS BETTER OCCUPATIONAL HEALTH AND SAFETY R35AG(611.)R
Occupational Health and Safety Products Division/3M
220-7W, 3M Center St. Paul, Minnesota 55144
Litho in U S-A,
3M 106403
3M Organic Vapor Monitor
Analysis Guide
USE OF THE ANALYSIS GUIDE TABLES:
The Analysis Guide is designed for the customer involved in the analysis of the 3M #3500 Organic Vapor Monitor by the gas chromatograph. The following tables summarize the 3M monitor sampling rate, capacity, recovery coefficient and calculation constants. The analysis guide provides the necessary information to calculate the time-weighted-average concentration in parts per million (ppm) or milligrams per cubic meter (mg/m3).
A. Monitor Sample Information
Sampling Rate
The (*) compounds in the Sampling Guide tables have been subjected to an extensive amount of laboratory work to verify the sampling rate. The sampling rates given for the remaining compounds in this table were determined from empirical relationships as outlined in a publication on Sampling Rate Validation, All sampling rates have an accuracy of 5%. The sampling rates are tabulated as either cubic centimeters/minute or micrograms/ppm-hour.
Capacity
The capacity of the monitor for each individual compound is a function of molecular structure, vapor pressure, environmental conditions, etc. The capacity is stated in terms of weight (milligrams). For a single contaminant, if the analyst finds the weight collected by the monitor is greater than the defined capacity, then the validity of the sample should be questioned.
When sampling multiple contaminants, the combined weights of the contaminants collected should not exceed the defined value for the single contaminant with the lowest capacity.
Recovery Coefficients (Desorption Efficiency)
The collected sample is removed from the activated carbon wafer for analysis by desorption with carbon disulfide (CS2) or other suitable solvents. In order for the laboratory analyst to determine accurately the amount of contaminant collected by the adsorbent, it is necessary to know the efficiency of the desorption process. The recovery coefficient or desorption efficiency is determined by adding a known weight of contaminant onto the adsorbent and measuring the weight of contaminant in the desorbing solvent. The recovery coefficient is calculated by dividing the recovered weight by the known weight. It is recommended that each analytical laboratory determine recovery coefficients according to the procedure outlined by the 3M laboratory contained in the Analysis Guide as "Recommended Procedure for Determination of Recovery Coefficients." Recovery coefficients determined by the 3M laboratory are tabulated in the following tables.
B. Procedure to Calculate Contaminant Concentrations
The time-weighted-average concentration of the environment sampled can be calculated by knowing the length of the sampling period, the contaminant weight determined by gas chromatography, the recovery coefficient and the calculation constant either A or B. The calculation constant A is used to calculate th concentration when expressed in units of milligrams per cubic meter (mg/m3) and constant B when expressed in units of parts per million (ppm). The calculation constant A and B have been determined for every contaminant in the Analysis Guide by the following expressions:
A = 1000 Sampling Rate
B = 1000
x (24.45)
(Sampling Rate) x (Molecular Weight)
1 3M 106404
The contaminant concentration can be calculated with the following information:
Sampling Information
Contaminant Length of Sampling Period (min.) t
Contaminant Information from Tables in Analysis Guide Calculation Constant A or B
Analytical Results
Contaminant weight recovered W (Micrograms) Recovery Coefficient (r)
The time-weighted-average concentration in milligrams per cubic meter of the contaminant in the environment sampled can be calculated from the following expression:
C(mg/m3) =
Wjmicrograms) xA rxt (minutes)
The time-weighted-average concentration in parts per million (ppm) of the contaminant can be calculated from the following expression:
C(ppm) =
W (micrograms) xB r x t (minutes)
The above expressions calculate the time-weighted-average concentrations at a sampling temperature of 25C (298K) and pressure of 760 mm. When sampling at other environmental conditions, the above expressions need to be corrected only for variations in temperature. The above expressions can be multiplied by the following temperatures correction factors (CFT) for samples collected at temperatures other than 25C (77F).
Sampling
(C)
44 37 31 25 19 13
7 2 -3 -8
Temperature (F)
111 99 88 77 66 55 45 36 27 18
Temperature Correction Factor
(CFT)
.97 .98 .99 1.00 1.01 1.02 1.03 1.04 1.05 1.06
From the above table, every 10-11 above or below 77F requires a one percent correction to the calculated time-weighted-average concentration.
If the temperature correction is desired, the time weighted average concentration can be calculated by the following expression:
C(mg/m3) = ___ W (micrograms)___ XAxCFT rxt (minutes)
C(ppm) =
--Wjmicrograms) r x t (minutes)
x B x CFT
3H 106405
2
Example Calculation
Contaminant Length of Sampling Period (t) Temperature (T) Calculation Constant A
or B Contaminant Weight Recovered (W) Recovery Coefficient(r)
Benzene 420 minutes 75F 28.2
8.83
27.2 micrograms 1.02
Using Calculation Constant A:
C(mg/m3) =
______ __________ (1.02) (420)
x 28.2
C = 1.79 mg/m3
Using Calculation Constant B:
C (ppm) =
--------- 272______ (1.02) (4.20)
x 8.83
C = .56 ppm
3 3H 106406
Acetone* Acetonitrile Acrylonitrile Allyl Alcohol Allyl Chloride
n-Amyl Acetate* s-Amyl Acetate n-Amyl Alcohol* i-Amyl Alcohol* s-Amyl Alcohol Benzene* Benzyl Chloride Bromoform Butadiene n-Butyl Acetate
s-Butyl Acetate t-Butyl Acetate Butyl Acrylate Butyl Alcohol* s-Butyl Alcohol
t-Butyl Alcohol Butyl Cellosolve*
(2-Butoxyethanol) Butyl Glycidyl Ether (BGE) p-tert-Butyltoluene*
Camphor Carbon Disulfide Carbon Tetrachloride* Cellosolve*
(2-Ethoxyethanol) Cellosolve Acetate*
(2-Ethoxyethy! Acetate)
Chlorobenzene* o-Chlorostyrene o-Chlorotoluene Chlorobromomethane* Chloroform
1 -Chloro-1 -nitropropane Chloroprene
(2-Cnloro-i ,3-butadiene) Cumene* Cyclohexane* Cyclohexanol*
Cyclohexanone* Cyclohexene* Diacetone Alcohol* o-Dichlorobenzene* p-Dichlorobenzene* 1,1 Dichloroethane 1,2 Dichloroethylene* 1,1 Dichloro-1-nitroethane Dichloroethyl Ether
+ Methylene Chlonde as the solvent
ANALYSIS GUIDE
Sampling Rate
(cc/min)
40.1 .9 48.2 43.8 40.4 35.1 26.0 .5 27.2 31.2 .4 32.3 .4 32.3 35.5 .6 27.2 29.3 42.8 31.6 28.6 29.4 28.7 34.3 ,7 34.8 35.2
28.2 .6 27.0 20.7 .4 21.4 42.8 30.2 .4
32.4 .9
26.6 .4 29.3 .6 26.0 27.3 34.4 ,9 33.5 30.4
32.2 24.5 .9 32.4 .7 29.5 .3 28.9 ,3 32.3 .4 28.2 .4 27.8 .6 27.8 .6 33.2 35.2 .5 28.5 26.1
Capacity (mg)
3 14 11 20
1 >25 >25 >25 >25 >25
13 >25 >25
.4 25 >25 19 >25 >25 19 13
>25 >25 >25
>25 1
14
>25
>25 >25 >25 >25
10 7
>25
5 >25
22 >25 >25
22 >25 >25 >25
4 1 >25 >25
Coefficient
.87 -- -- -- -- 1.08 -- 1.00 + .99 + .99 + 1.02 1.05 1.05 -- 1.04 1.07 1.05 -- .98 + .97 + --
.86 -- 1.10 -- -- 1.05
.78
1.03 1.00
-- -- 1.00 .98 --
--
.96 1.07 1.00 +
.97 1.02 1.04 +
.95 .95 -- .99 -- --
Calculation Constant
(mg/m)
B (ppm)
24.9 20.8 22.8 24.75 28.5
10.51 12.37 10.53 10.43
9.05
38.6 368 32.1 31.0 31.0
7.26 6.91 8.91 8.63 8.60
28.2
8.83
36.8 34.1 23.4 31.7
7.08 3.30 10.53 6.67
35.0 34.0 34.8 29.2 28.7
7.37 7.17 6.66 9.63 9.44
28.4
9.39
35.5 37.0 48.3
46.7 23.4 33.1
7.35 6.97 7.98
7.52 7.52 5.26
30.9
8.39
37.6 34.1 38.5 36.6 29.1 29.9 32.9
6.96 7.38 6.77 7.05 5.51 6.13 6.49
31.1 40.8 30.9 32.7
34.6 31.0 35.5 36.0 36.0
30.1 28.4 35.1 38.3
8.53 8.32 8.98 8.48
8.63 9.23 7,47 5.98 5.98
7.44 7.16 5.96 6.55
4 3M 106407
Diisobutyl Ketone* Dimethyl Formamide p-Dioxane Dipropylene Glycol Methyl Ether
Enflurane (2-Chloro-l ,1,2 trtfluoroethyl difluoromethyl ether)
Epichlorohydnn (1 -Chloro-2,3-epoxy-propane)
Ethyl Acetate*
Ethyl Acrylate
Ethyl Alcohol Ethyl Benzene
Ethyl Bromide*
Ethyl Butyl Ketone (3-Heptanone)
Ethyl Ether Ethyl Formate Ethylene Chlorohydrin
(2-Chloroethanol)
Ethylene Dibromide* (1,2-Dibromomethane)
Ethylene Dichloride* (1,2-Dichloroethane)
Furfural Furfuryl Alcohol
Glycidol (2,3-Epoxy-1 -propanol)
Halothane (2-Bromo-2-chloro-1,1,1 trifluoroethane)
Heptane* Hexachloroethane
Hexane'
s-Hexyl Acetate
Isoamyl Acetate Isoamyl Alcohol* Isobutyl Acetate*
Isobutyl Alcohol*
Isophorone*
Isopropyl Acetate
Isopropyl Alcohol
Isopropyl Ether Isopropyl Glycidyl Ether
Mesityl Oxide* Mesitylene*
(Trimethyl Benzene)
Methyl Acetate*
Methyl Acrylate MGtnylal
(Dimethyoxymethane)
Methyl Amyl Ketone (2-Heptanone)
Methyl Bromide Methyl Butyl Ketone*
(2-Hexanone) Methyl Isobutyl Ketone*
(Hexanone) Methyl Cellosolve*
(2-Methoxyethanol)
+ Methylene Chtonde as the solvent
ANALYSIS GUIDE
Sampling
(cc/mln)
24.6 .8 32.4 34.5 25.3
28.3
29.6 34.5 + .6 32.2 51.2 27.3 36.4 .3
28.0 36.8 38.8
33.9
29.6 .4
33.2 .7 34.3 32.6
37.1
30.2 28.9 .7 26.7 32.0 * .7 28.1 27.2 32.3 + .4 31.0 .3 35.9 * .7 21.7 * .7 31.7 39.4 31.2 29.1 31.2 1.2
26.3 .7 37.0 * .6 35.8
37.9
27.9 46.5
29.7 * .7
30.0 .4
36.3 .4
Capacity (mg)
>25 >25 >25 >25
Recovery Coefficient
1.07 -- --
4
>25 10 19 12
>25 1
>25 .4 1
>25
>25
18 >25 >25
>25
4 >25 >25
18 >25 >25 >25 >25 >25 >25
15 17 10 >25 >25
>25 2
11
1
>25 .5
>25
>25
>25
--
.95 1.01
-- -- -- 1.03
-- -- --
_
1.04
1.02 -- --
_
1.08 --
1.05 -- --
1.03 -r --
1.02 + 1.03 + 1.05 +
-- -- -- .99
1.06 1.00
--
--
_
--
1.00
1.06
.75
5
Calculation Constant
A (mg/m3)
B (ppm)
40.7 30.9
7.00 10.34
29.0
8.05
39.5
6.53
35.3
33.8 29.0 31.1 19.5 36.6 27.5
35.7 27.2 25.8
29.5
33.8
30.1 32.8 30.7
27.0
4.68
8.88 8.05 7.59 10.38 8.45 6.16
7.66 8.98 8.52
8.90
4,39
7.44 8.35 7.65
8.91
33.1 34.6 37.5 31.3 35.6 36.8 31.0 32.3 27.9 46.1 31.5 25.4 33.0 34.4 32.1
38.0 27.0 27.9
26.4
35.8 21.5
33.7
33.3
27.5
5.96 8.46 3.86 8.88 6.04 8.64 8.60 6.60 9.20 8.16 7.56 10.34 7.91 7.24 8.00
7.75 8.93 7.94
8.49
7.69 5.53
8.23
8.15
8.86
3H 106408
