ISO 18073:2004 PDF
Water quality — Determination of tetra- to octa-chlorinated dioxins and furans — Method using isotope dilution HRGC/HRMS
Water quality — Determination of tetra- to octa-chlorinated dioxins and furans — Method using isotope dilution HRGC/HRMS
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 66
- Дата публикации:
- 26 апреля 2004 г.
- Издание:
- ISO IS 18073 edition 1 version 1
- ICS:
- 13.060.50
ISO 18073:2004 specifies a method for the determination of tetra- to octa-chlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in waters and waste waters (containing less than 1 % by mass solids) using high-resolution gas chromatography/high-resolution mass spectrometry (HRGC/HRMS). The minimum levels (MLs) at which the PCDDs/PCDFs can currently be determined with no interferences present are specified. This method is "performance based". The analyst is permitted to modify the method to overcome interferences or lower the cost of measurements, provided that all performance criteria are met. The requirements for establishing method equivalency are given.
Abstract
Overview
ISO 18073:2004 (identical to ISO 18073:2004) is a water quality standard that specifies a method for determination of tetra- to octa‑chlorinated dibenzo‑p‑dioxins (PCDDs) and dibenzofurans (PCDFs) in waters and waste waters (samples containing less than 1% by mass solids). The method uses isotope dilution high‑resolution gas chromatography / high‑resolution mass spectrometry (HRGC/HRMS) and covers the seventeen 2,3,7,8‑substituted PCDD/PCDF congeners. It is a performance‑based method: analysts may adapt procedures to address interferences or reduce costs provided all performance criteria and equivalency requirements are met. The standard also specifies minimum levels (MLs) for interference‑free determination and reports a method detection limit (MDL) for 2,3,7,8‑TCDD of 4.4 pg/L using a 1 L sample.
Key Topics and Requirements
- Analytes and scope: tetra‑ to octa‑chlorinated PCDDs/PCDFs; 17 congeners of regulatory interest.
- Analytical principle: isotope dilution HRGC/HRMS for robust identification and quantification.
- Sample types: surface water, effluent and waste water with
Технические детали
- Технический комитет
- ISO/TC 147/SC 2 - Physical, chemical and biochemical methods
- SKU
- ISO 18073:2004
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