BSI 20/30415503 DC:2020 Edition

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BS ISO 23646. Soil quality. Determination of organochlorine pesticides by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)

Published By	Publication Date	Number of Pages
BSI	2020	39

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Categories: 13.080.10 - Chemical characteristics of soils, BSI

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Description

This International Standard specifies a method for quantitative determination of organochlorine pesticides and semi-volatile chlorobenzenes in soil and sediment, using GC-MS and GC-ECD (see Table 2).

Table 2

Target analytes of this International Standard

The limit of detection and the limit of application depends on the determinants, the sample intake, the equipment used, the quality of chemicals used for the extraction of the sample and the clean-up of the extract.

Under the conditions specified in this document, lower limits of application from 1 μg/kg (expressed as dry matter) for soils to 10 μg/kg (expressed as dry matter) for sediments can be achieved. The necessity to achieve these lower limits of application depends on the analyses order and the current limit values.

Soils and sediments may differ in properties as well as in the expected contamination levels of OCP and the presence of interfering substances. These differences make it impossible to describe one general procedure. Based on the properties of the samples, this document contains decision tables regarding drying-, extraction- and clean-up procedures to be used. This method is “performance based”. It is permitted to modify the method if all performance criteria given in this method are met.

The method may be applied to the analysis of other chlorinated compounds not specified in the scope, provided suitability is proven by proper in-house validation experiments.

Additional information

O,p'-DDD 1-(2-Chlorophenyl)-1-(4-chlorophenyl)-2,2-dichloroethan	53-19-0
P,p'-DDE 1,1-bis-(4-chlorophenyl)-2,2-dichloroethen	72-55-9
O,p'-DDE 2-(2-Chlorophenyl)-2-(4-chlorophenyl)-1,1-dichloroethen	3424-82-6
Title	BS ISO 23646. Soil quality. Determination of organochlorine pesticides by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD)
α-Endosulfan	959-98-8
1,2,3-Trichlorobenzene	87-61-6
Endosulfan sulfate	1031-07-8
Publisher	BSI
Pages	39
P,p'-DDD 1,1-Dichloro-2,2-bis(4-chlorophenyl)ethan	72-54-8
γ-HCH γ-Hexachlorocyclohexane	58-89-9
Aldrin	309-00-2
O,p'-DDT 1,1,1-Trichloro-2-(2-chlorophenyl)-2-(4-chlorophenyl)ethan	789-02-6
Isodrin	465-73-6
Hexachloro-1,3-butadiene	87-68-3
Standard Number	20/30415503 DC
P,p'-DDT 1,1,1-Trichlor-2,2-bis-(4-chlorophenyl)ethan	50-29-3
Heptachloro epoxide (endo-, trans-isomer)	28044-83-9
1,2,4,5-Tetrachlorobenzene	95-94-3
δ-HCH δ-Hexachlorocyclohexane	319-86-8
1,2,3,4-Tetrachlorobenzene	634-66-2
Methoxychlor	72-43-5
Status	Definitive
Heptachloro epoxide (exo-, cis-isomer)	1024-57-3
1,3,5-Trichlorobenzene	108-70-3
Pentachlorobenzene	608-93-5
α-Chlordane	5103-71-9
Dieldrin	60-57-1
Endrin	72-20-8
Telodrin	297-78-9
γ-Chlordane	5103-74-2
Committee	EH/4
1,2,4-Trichlorobenzene	120-82-1
Publication Date	2020-08-11
Identical National Standard Of	ISO/DIS 23646
Descriptors	Chemical analysis and testing, Chromatography, Aromatic hydrocarbons, Naphthalene, Soils, Gas chromatography, Quality, Halogenated hydrocarbons, Determination of content, Soil testing, Desorption
1,2,3,5-Tetrachlorobenzene	634-90-2
β-Endosulfan	33213-65-9
HCB Hexachlorobenzene	118-74-1
α-HCH α-Hexachlorocyclohexane	319-84-6
β-HCH β-Hexachlorocyclohexane	319-85-7
ICS Codes	13.080.10 - Chemical characteristics of soils
Heptachlor	76-44-8

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BSI 20/30415503 DC:2020 Edition

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