Document KzbjyLzKDnDJa5NQL1LnJr2N2
3M Organic Vapor Monitor Sampling Guide For Organic Vapor Monitor #3500/3510 Organic Vapor Monitor With Back-Up Section #3520
December, 1982
ANOTHER STEP TOWARDS BETTER OCCUPATIONAL HEALTH AND SAFETY
R35SG-A(1221)B2
Occupational Health and Safety Products DMslon/3M 220-7W 3M Center St. Paul, Minnesota 55144
Utho in U-SA-
3M 005750
Um of tha Sampling Guide Tables: The following table summarizes OSHA standards, 3M monitor sampling information and recommended sampling procedures for a variety of organic compounds for which the 3M Organic Vapor Monitors can be used to acccurately determine the environmental exposures. The table is not exhaustive and will be updated periodically. To obtain periodic updates, return the registration card contained In every box of monitors to 3M Company.
A. OSHA Standards
The OSHA TWA-PEL's (Time Weighted Average) given as workshift time weighted averages are taken from the Federal Register as found in 29 CRF 1910.1000 as of 1 January 1977 and are summarized in the "NIOSH/OSHA Pocket Guide to Chemical Hazards." Also included in parentheses are the current ACGIH (American Conference of Governmental Industrial Hygienist) values in cases where they differ from OSHA TWA's. These values are subject to change and appropriate publications should be consulted for the most current information.
B. Monitor Samples Information
* Sampling Rate
Ail sampling rates have an accuracy of 5%. 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 outlines in a publication on Sampling Rate Validation. The sampling rates are tabulated as cubic centimeters/minute and micrograms/ppm-hour. The publication on Sampling Rate Validation Protocol can be obtained upon request from 3M Company.
The top section of the #3520 (containing the primary absorbent) has the same geometric dimension as the 3M Organic Vapor Monitor #3500. Therefore, the sampling rates are the same, and also have an accuracy of 5%.
* Capacity
The capacity of the monitor for each Individual compound is a function of molecular structure, vapor pressure, environmental conditions, etc. The capacity values are tabulated in Section II - Analysis Guide, and are used to determine the length of a recommended sampling period.
Because of the backup section, the effective sampling capacity of the Organic Vapor Monitor #3520 is four times greater than the values listed for the Organic Vapor Monitor #3500/3510.
When sampling environments containing contaminant mixtures on environments with high relative humidity, it is difficult to accurately define the diffusiona! sampling capacity. Therefore, under these conditions, the weight (Ws) collected by the secondary absorbent of the backup section can be compared with the weight (Wp) collected by the primary absorbent to determine sample validity. The ration Ws/Wp must be equal to or less than 0.50.
C. Length of Sampling Period
1. General
3500/3510
When sampling for organic contaminants, full workshift sampling periods are recommended as the most comprehensive measures of worker exposure. When sampling some organic contaminants, sampling periods shorter than a full workshift are required in order to sample within the recommended capacity of the monitor. Under these circumstances, sequential sampling with several monitors can be performed.
3520
For those compounds where the recommended length of the sampling period for the Organic Vapor Monitor 3500/3510 is less than a full workshift, the length of the sampling period can be increased by a factor of four when using the Organic Vapor Monitor #3520. Because of the increased effective capacity of the Organic Vapor Monitor #3520, sampling periods longer than a full workshift are possible. The preferred recommendation Is for full workshift sampling periods.
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3M 005751
2. Effect on Humidity
Recommended sampling periods have been tabulated for concentration ranges from .1 to .5 times the PEL and from .5 to 3 times the PEL for relative humidities less than or greater than 70%. These recommended sampling periods should not be exceeded when using OVM #3500/3510.
3. Minimum Sampling Time
To confirm quantitatively the presence and concentration of a contaminant in the atmosphere, most analysts must have a minimum of 10 micrograms for G.C. analysis. A sampling period of at least 15 minutes is recommended even when 10 micrograms of the contaminant could be collected in a shorter period. For a contaminant at a low concentration level, the sampling rate of micrograms/ppm-hr. should be used to verify a sampling period during which at least 10 micrograms of the contaminant would be collected.
D. Short Term Exposure Limit (STEL)
The ACGIH has recommended a short-term exposure limit (STEL) as a maximum concentration to which workers can be exposed for a period up to 15 minutes continuously. No more than four (4) such excursions per day are permitted, with at least 60 minutes between exposure periods, provided that the recommended ACGIH dally TLV-TWA also is not exceeded. The STEL values summarized in the following tables can be found in the "Threshold Limit Values for Chemical Substances in Workroom Air Adopted by ACGIH for 1980." The monitor is recommended for STEL sampling if, during the 15 minute sampling period, the monitor will collect a minimum of 10 micorgrams of the contaminant when sampling at the STEL concentrations.
E. Unsuitable Compounds
The OVM is not recommended for the compounds listed below because of adverse or inadequate interactions with the sorbent material. This list is representative of classes of compounds not suitable for use with the OVM.
Compounds not on this list or the Compound Guide should be handled by consultation with OH&SP Technical Service.
Compounds
Ammonia Carbon Monixide (1)
Ethylene Oxide (2) Formaldehyde (3) Hydrogen Sulfide Isocyanates
Methane, Ethane, Propane Methyl Alcohol (Methanol)
Methyl Chloride Methyl, Dimethyl, Trimethyl Amines Organic Solids Sulfur Dioxide
(1) Carbon Monixide can be monitored using 3M Monitor #3400 (2) Ethylene Oxide can be monitored using 3M Ethylene Oxide Monitor #3550/3551 (3) Formaldehyde can be monitored using 3M Formaldehyde Monitor #3750/3751
F. Compounds Printed in Bold Type
All compounds listed In bold type in the OVM Sampling Guide will be analyzed by 3M for the OVM #3510. fFor more information contact your 3M Sales Representative or your local OH&SP Safety Products Distributor.
fPre-paid analysis for up to three compounds.
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COMPOUND
Acetone* Acetonitrile* Acrylonitrile Allyl Alcohol Ally! Chloride n-Amyl Acetate* -Amyl Acetate n-Amyl Alcohol* 1-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 Celloaolve* (2-ButoxyethanoO Butyl Glycidyl Ether (BGE) p-tert-8utyltoluene* Camphor
Carbon Disulfide Cartoon Tetrachloride* Cellosolve* (2-Ethoxyethanol)
Cellosolve Acetate* (2-Ethoxyethyl Acetate)
Chlorobenzene*
o-Chlorostyrene
o-Chlorotoluene
Chlorabromomethane* Chloroform*
l-Chloro-1-nltropropane Chloroprene (2-Chloro-1,3-butadlene)
Cumene* Cyclohexane* Cyclohexanol* Cyclohexanone* Cyclohexene* Diacetone Alcohol* o-OlchlorobenzMte* p-DIchlorobenzene*
1,1-Dlchloroethane
1,2-Dichloroethylene* 1,1-Dlchloro-1 -nitroethane Dichloroethyl Ether
Dilsobutyl Ketone* (DIBK)
Sampling Guide
RECOMMENDED SAMPLING PERIOD
(HreJ
RH< 70% RH>70%
SHORTTERM EXPOSURE LIMIT (ISmln.)
.1-5 .5-3 .1.5 .5-3 STEL PEL PEL PEL PEL (ppm)
OVM Usage
1 0.5 1 0.5 82 6 1 82 6 1
88 8 6 88 86
88 88 88 88
88
84
84 84
84 84
88 86
88 88 88 8 6 0.4 NR 0.4 NR
87 63
85 84 88
63 63 86
1250 60
--
2 2
150
125 -- 25
_
1250 200 250 250
_
Yes Yes
No NO Yes
Yes
Yes
Yes Yes Yes Yes
88 8 4
86
a7 88 88 88 88
82 88 85
63
63 88 86 88 86
81 86 83
_
150 Yes 150 Yes
--
20 Yes 3 No
___
20 Yes 150 Yes
88 8 4
150 Yes
88 a8
8' 5 88
--
75 Yes
88 8 6
75 Yes
8 1.5 8 1.5 84 63
250 50
Yes Yes
88 88
88 64
_
88 83 88 88
86 82 88
88
83 88
88 88
82 86
86 86
8 1.5 4 1.5
75 375
_
--
___
75
110 250
Yes Yes
Yes Yes Yes
1 0.2 1 0.2 88 8 8 88 8 8
88 a8
250 10 10
--
Yes Yes Yes
OSMA
Stsndard TWA-PEL
( )ACGIH TLV
C-Celling
(ppm)
SAMPLING RATE
(cefmln.)
Micronram ppmmr.
1000 40 2 2 1
100 125 (100) 100 (100)
10 1 0.5
1000 150
200 200
(10) 100 (50) 150
100 50 50 10
2
20 10 200 (100) 100
40.1 48.2 43.8 40.4 35.1
26.0 27.2 31.4 32.3 32.3
35.5 27.2 29.3 42.8 31.8
28.6 29.4 28.7
34.3
34.8
35.2 28.2 27.0 20.7 21.4
42.8 30.2 32.4
26.6
5.71 4.85 5.70 5.75 6.63
7.36 8.68 6.78 6.98 6.98
6.78 8.48 18.19 5.67 9.00
8.14 8.37 9.01
5.55
6.32
6.39 8.15 8.61 7.51 7.11
7.88 11.41 7.14
8.60
75 29.3
8.12
-- 26.0 8.87
(50)
27.3 8.51
(50)
200 34.4 10.89
50 33.5
9.78
00)
20 30.4
9.25
25 32.2 (10)
50 24.5 300 32-4
50 29.5 50 28.9
7.03
8.82 6.67 7.24 6.94
300 32.3
6.49
50 28.2
7.15
so 27.8 10.03
75 27.8 10.03
100 33.2
8.07
(200)
200 35.2
8.38
10 28.5 10.07
15 26.1
9.16
(5)
50 24.6
8.56
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Sampling Guide
COMPOUND
RECOMMENDED SAMPLING PERIOD
(Hre.)
RH< 70% RH >70%
.1-.5 .5-3 ,1-,5 .5-3 PEL PEL PEL PEL
Dlnwlhyl Formamide (DMF) p-Oioxane
88 88
86 84
Dipropylene Glycol Methyl Ether Enflurane
(2-Chloro-1,1,2 trlfluoroethyl dlfluoromethyl ether) Epichlorohydrin (1 -Chk>ro-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 Dibromlde*
(1,2-Dlbromomethane)
Ethylene Dlchlortde* (1,2-Dtchloroethane)
Furfural Furfuryl Alcohol
88 88
84 86
88
8 !6
71
41
88 8 4
4 0.5 4 0.5
88 8 4
1 0.2 1 0.2
88 86 0.3 NR 0.3 NR 3 0.5 3 0.5 88 8 6 88 86
88
88 88
84
88 88
Glycldol (2,3-Epoxy-l-propanol) Halothane
(2-Bromo-2-chloro-1,1,1 trlfluoroethane)
Heptane*
8 8
8
8 8
2
88 84
42
Hexachloroethane Hexane*
88 8 8 8 1.5 4 1.5
s-Hexyl Acetate Isoamyl Acetate
Isoamyl Alcohol* Isobutyl Acetate* Isobutyl Alcohol*
88 88
88 88 88
84 84
84 84 84
Isophorone*
88 8 6
Isopropyl Acetate Isopropyl Alcohol
82 82
62 62
Isopropyl Ether
5 0.8 4 0.8
Isopropyl Glycidyl Ether Mesityl Oxide* Mesltytene* (Trimethyl Benzene)
Methyl Acetate* Methyl Acrylate Methylal (Dlmethyoxymethane) Methyl Amyl Ketone (2-Heptanone) Methyl Bromide
88 88
88
86 86 86
3 0.5 3 0.5 87 63 0.3 NR 0.3 NR
88 84 4 0.5 3 0.5
SHORTTERM EXPOSURE LIMIT (15 min.)
STEL (ppm)
OVM Usage
20 Yes
150 Yes
*"
5 No
-- -- --
125 Yes 250 Yes
75 Yes 500 Yes 150 Yes
-- --
15 Yes
15 Yes 10 Yes
75 Yes
500
3 125
--
125 125 167
75
--
310 500
310
75
--
35 250
--
1250 150
Yes Yes Yes
Yes Yes Yes Yes
Yes Yes Yes Yes Yes Yes Yes Yes
SHA Standard TWA-PEL ( ) ACGIH
TLV C-Celling
(ppm)
SAMPLING RATE
(ce/mln.)
Microgram ppfnmr.
10 100 (50) 100
(2)
5 (2)
400 25
1000 100 200
50 400 100
5 20
32.4 34.5
25.3 28.3
29.6
34.5 .32.2 51.2 27.3 36.4
28.0 36.8 38.8 33.9 29.6
5.8 7.45
9.19 12.81
6.76
7.45 7.90 5.78 7.10 9.74
7.83 6.88 7.04 6.66 13.66
50 33.2
8.07
(10) 5 34.3
50 32.6
8.08 6.98
(5)
50 37.1
6.74
30.2 14.63
(2)
500 28.9
7.08
(400)
1 26.7 15.53
500 32.0
6.74
(100)
50 28.1
9.93
100 27.2
8.68
100 32.3 150 31.0 100 35.9
(50) 25 21.7
(5) 250 31.7
6.98 8.82 5.81
7.34
7.93
400 (250) 500 (250)
50 25 25
39.4
31.2
29.1 31.2 26.3
5.17
7.81
8.28 7.49 7.73
200 37.9
6.72
10 35.8
7.56
1000
37.9
7.07
100 27.9
7.81
20 46.5 10.84
(15)
3H 005754
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Sampling Guide
COMPOUND
RECOMMENDED SAMPLING PERIOD
(HrsJ
RH<70% RH >70%
SH RTTERM EXPOSURE LIMIT
(1(mh)
.1.5 -5-3 .1-.S .54 STEL OVM PEL PEL PEL PEL (ppm) Usage
Methyl Butyl Ketone* (2-Hexenone) Methyl leobutyl Ketone* (Hexenone) Methyl Cellosolve* (2-Methoxyethanol) Methyl Cellosolve Acetste*
(Ethylene Qlycol Methyl Ether Acetste) Methyl Chloroform*
Methyl Cyclohexane* Methyl Cyclohexanol
8 8 8 8
8
8 8
88 88 88 88
14
2.5 6 88
4 4
6 6
1
2 4
50 Yes 125 Yes 35 Yes 35 Yes
450 Yes
500 Yea 75 Yes
Methyl Ethyl Ketone* (2-Butanone) Methyl Formate 5-Methyl-3-heptanone
(Ethyl Amyl Ketone)
Methyl Iodide Myethyl Isobutyl Carblnol
(Methyl Amyl Alcohol) Methyl Isoamyl Ketone Methyl Methacrylate Alpha Methyl Styrene*
Methylene Chloride* (Dichloromethane)
Naphtha (VM&P)* Naphthalene Nonane*
Octane*
Pentane*
83 82
0.7 NR 0.7 NR
B8
86
61 88
41 86
88 88 88
84 84 84
1 0.2 1 0.2
82 88 85
62
88 63
83 62 2.5 0.4 2.5 0.4
300 150 --
10 40
150 125 -- 250
400 15
250
375 750
Yes Yes
Yes Yes
Yes Yes
Yes
Yes Yes Yes
Yes Yes
2-Pentanone* (Methyl Propyl Ketone)
8 5 6 3 250 Yes
PeroMoroethylene (Tetrechioroethylene) 8 7 6 3 150 Yes
Phenyl Ether Phenyl Qlycidyl Ether
88 88
86
a6
2 No 15 Yes
n-Propyl Acetate* n-Propyl Alcohol*
Propylene Dlchlorlde* (1,2-Dlchloropropane)
Propylene Qlycol Monomethyl Ether
8 4 8 3 250 Yes
8 8 6 4 250 Yes
a8
64
110
Yes
8 8 8 4 150 Yes
n-Propyl Nitrate Stoddard Solvent
88 8 4
40 Yes
84
63
125
Yes
Styrene* 1,1,24-Tetrachloroethane 1,1,1,2-Tetrachloro-2,2-difluoroethan 1,1,2,2-Tetrachloro-l ,2-dlftuoroethane
Tetrahydrefuran Toluene* 1,1,2-Trichloroethane* Trichloroethylene*
88 8 4
125
88
86
10
5 0.75 4 0.75 825
5 0.75{ 4 0.75 825
82
86
88
88
42 63 68 86
250 150 20 150
Yes Yes Yes Yes
Yes Yes Yes Yes
1,1,2-Trichloro-1l2-trifluoroethane
1,2,3-Trichloropropane Vinyl Acetate
0.5 NR 0.5 NR 1250
88 88
86 64
75 20
Yes
Yes Yes
Vinyl Bromide Vinyl Chloride*
22 22
22 2 1.5
--
Vlnylidene Chloride
Vinyl Toluene Xylene*
22 22
20 Yes
8 8 6 4 150 Yes 8 8 6 4 150 Yes
OSHA
Standard TWA-PEL ( )ACGIH
TLV C-CeHIng
(ppm)
SAMPLING
DATE
(ccfmln.)
Mlcroqram ppovhr.
100 29.7 100 30.0 25 38.3
25 29.0
7.29
7.35 8.76 8.38
350 30.9 10.09
500 28.9 100 28.8 (50) 200 36.3 100 45.0 25 26.4
6.94 8.06
6.41 8.33 7.39
5 25
100 100 100
500 (200) 300
10
(200) 500
1000 (800) 200 100
1 10
200 200
75
(100) 25
500 (100) 100
5 500 500
200 200
10 100 (50) 1000
50
(10)
(5)
1
(5)
(10)
100 100
36.7 29.2
28.0 31.8 25.0
37.9
33.2 24.6 24.6
28.8
35.3
33.0 28.3 24.1 20.8
30.1 39.7 30.8
32.4
33.3
24.3
26.8 28.4 29.7 28.2
37.2 31.4 29.7 31.1
31.4
27.4 35.8
41.0 40.9
38.6
26.8 27.3
12.79 6.51
7.83 7.80 7.24
7.91
8.15 6.88 7.71
7.43
5.56
6.95 11.53 10.05 7.71
7.53 5.21 8.49
6.09
7.27
8.59
6.83 11.71 14.87 14.12
6.57 7.08 9.69 10.00
14.41
9.88 7.56
10.77 6.22
9.19
7.75 7.09
3M 005755
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