BS ISO 20595:2018
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Water quality. Determination of selected highly volatile organic compounds in water. Method using gas chromatography and mass spectrometry by static headspace technique (HS-GC-MS)
Hardcopy , PDF
31-10-2022
English
24-01-2018
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences
6 Reagents
7 Apparatus
8 Sampling
9 Procedure
10 Calibration
11 Evaluation
12 Expression of results
13 Test report
Annex A (informative) - Example of GC column,
headspace vial and septum
Annex B (informative) - Examples of internal standards
Annex C (informative) - Example of headspace and gas
chromatographic conditions
Annex D (informative) - Performance data
Bibliography
Describes a method for the determination of selected volatile organic compounds in water.
| Committee |
EH/3/2
|
| DevelopmentNote |
Supersedes 1630333773 DC. (01/2018)
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
This document specifies a method for the determination of selected volatile organic compounds in water (see Table1). This comprises among others volatile halogenated hydrocarbons as well as gasoline components (BTXE, TAME, MTBE and ETBE). The method is applicable to the determination of volatile organic compounds (see Table1) in drinking water, groundwater, surface water and treated waste water in mass concentrations >0,1µg/l. The lower application range depends on the individual compound, the amount of the blank value and the matrix. The applicability of the method to further volatile organic compounds not indicated in Table1 is not excluded, but this is checked in individual cases. Table1 Volatile organic compounds determinable by this method Name (other name) Molecular formula CAS-RNa EC-Numberb Molar mass g/mol allylchloridec (3-chloropropene) C3H5Cl 107-05-1 203-457-6 76,53 benzene C6H6 71-43-2 200-753-7 78,11 biphenyl C12H10 92-52-4 202-163-5 154,21 bromodichloromethane CHBrCl2 75-27-4 200-856-7 163,83 chlorobenzene C6H5Cl 108-90-7 203-628-5 112,56 2-chloro-1,3-butadiene (chloroprene) C4H5Cl 126-99-8 204-818-0 88,54 2-chlorotoluene C7H7Cl 95-49-8 202-424-3 126,58 3-chlorotoluene C7H7Cl 108-41-8 203-580-5 126,58 4-chlorotoluene C7H7Cl 106-43-4 203-397-0 126,58 dibromochloromethane CHBr2Cl 124-48-1 204-704-0 208,28 1,2-dibromoethane C2H4Br2 106-93-4 203-444-5 187,86 1,2-dichlorobenzene C6H4Cl2 95-50-1 202-425-9 147,00 1,3-dichlorobenzene C6H4Cl2 541-73-1 208-792-1 147,00 1,4-dichlorobenzene C6H4Cl2 106-46-7 203-400-5 147,00 dichlorodiisopropylether C6H12Cl2O 108-60-1 203-598-3 171,06 1,1-dichloroethane C2H4Cl2 75-34-3 200-863-5 98,96 1,2-dichloroethane C2H4Cl2 107-06-2 203-458-1 98,96 1,1-dichloroethene C2H2Cl2 75-35-4 200-864-0 96,94 cis-1,2-dichloroethene C2H2Cl2 156-59-2 205-859-7 96,94 trans-1,2-dichloroethene C2H2Cl2 156-60-5 205-860-2 96,94 dichloromethane CH2Cl2 75-09-2 200-838-9 84,93 1,2-dichloropropane C3H6Cl2 78-87-5 201-152-2 112,99 cis-1,3-dichloropropene C3H4Cl2 10061-01-5 233-195-8 110,97 trans-1,3-dichloropropene C3H4Cl2 10061-02-6 602-030-00-5e 110,97 2,3-dichloropropene C3H4Cl2 78-88-6 201-153-8 110,97 1,1-dimethylpropyl-methyl ether,
tert-amylmethyl ether (TAME) C6H14O 994-05-8 213-611-4 102,17 ethyl benzene C8H10 100-41-4 202-849-4 106,17 ethyltert-butylether (ETBE) C6H14O 637-92-3 211-309-7 102,17 hexachlorobutadiene C4Cl6 87-68-3 201-765-5 260,76 hexachloroethane C2Cl6 67-72-1 200-666-4 236,74 isopropylbenzene (cumene) C9H12 98-82-8 202-704-5 120,19 methyltert-butylether (MTBE) C5H12O 1634-04-4 216-653-1 88,15 naphthalene C10H8 91-20-3 202-049-5 128,17 n-propylbenzene C9H12 103-65-1 203-132-9 120,19 1,1,1,2-tetrachloroethane C2H2Cl4 630-20-6 211-135-1 167,85 tetrachloroethene C2Cl4 127-18-4 204-825-9 165,84 tetrachloromethane
(carbontetrachloride) CCl4 56-23-5 200-262-8 153,82 toluene C7H8 108-88-3 203-625-9 92,14 tribromomethane (bromoform) CHBr3 75-25-2 200-854-6 252,73 1,2,3-trichlorobenzene C6H3Cl3 87-61-6 201-757-1 181,45 1,2,4-trichlorobenzene C6H3Cl3
| Standards | Relationship |
| ISO 20595:2018 | Identical |
| ISO 1042:1998 | Laboratory glassware — One-mark volumetric flasks |
| ISO 11352:2012 | Water quality — Estimation of measurement uncertainty based on validation and quality control data |
| ISO 5667-4:2016 | Water quality Sampling Part 4: Guidance on sampling from lakes, natural and man-made |
| ISO 5667-6:2014 | Water quality Sampling Part 6: Guidance on sampling of rivers and streams |
| ISO 5667-3:2012 | Water quality Sampling Part 3: Preservation and handling of water samples |
| ISO 5667-7:1993 | Water quality Sampling Part 7: Guidance on sampling of water and steam in boiler plants |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| ISO 5667-5:2006 | Water quality Sampling Part 5: Guidance on sampling of drinking water from treatment works and piped distribution systems |
| ISO 5667-11:2009 | Water quality Sampling Part 11: Guidance on sampling of groundwaters |
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