SIST EN ISO 10695:2000 PDF

Name: SIST EN ISO 10695:2000 — Water quality - Determination of selected organic nitrogen and phosphorus compounds - Gas chromatographic methods (ISO 10695:2000)
SKU: SIST EN ISO 10695:2000
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Water quality - Determination of selected organic nitrogen and phosphorus compounds - Gas chromatographic methods (ISO 10695:2000)

Название (английский):

SIST EN ISO 10695:2000

Water quality - Determination of selected organic nitrogen and phosphorus compounds - Gas chromatographic methods (ISO 10695:2000)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 26
Дата публикации:: 1 декабря 2000 г.
ICS:: 13.060.70
Технический комитет:: KAV - Water quality

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Цена:390 €

Описание (английский):

Migrated from Progress Sheet (TC Comment) (2000-07-10): CEN/TC 230N285: V.A ISO lead + see file CEN/TC 230 CORR (TA/970918) ++ SPPJ_09_Y_199804 ++ 980120: ISO/DIS 10695-1 was sent out in June 1997 in ISO for ENQ. ISO agrees to ++ wait until we carry out our PQ because their texts for FDIS will not become ++ available before May/June 1998 (TA/980120)

Abstract

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Стандарты, упомянутые в описании

Overview

EN ISO 10695:2000 / ISO 10695:2000 defines gas chromatographic methods for the determination of selected organic nitrogen and phosphorus compounds in water. It specifies two validated extraction approaches (liquid/liquid and liquid/solid) and describes chromatographic analysis using capillary columns and a nitrogen–phosphorus (N–P) detector. The standard addresses sample handling, reagents, calibration, identification, calculation, and reporting, and includes informative annexes with detection limits, example chromatograms and precision data.

Key topics and technical requirements

Two extraction methods

Liquid/liquid extraction (dichloromethane) - suitable for drinking, ground, surface and wastewater (applicable when suspended solids ≤ 0.05 g/L).
Liquid/solid extraction - suitable for very low analyte concentrations (order of 0.05 μg/L) in ground, surface and drinking waters; used where higher preconcentration is needed.

Chromatography and detection

Capillary GC with at least two columns of different polarity recommended; N–P detector is primary. Mass spectrometry may be used for confirmation.

Reagents and standards

High-purity solvents (e.g., dichloromethane, acetone), prepared stock/intermediate/working standards, procedures for solvent quality checks and storage conditions.

Calibration and QA

External and internal standard calibration procedures, blank controls, and analytical quality control guidance (referencing ISO/TR 13530).

Sampling and sample stability

Sampling per ISO 5667 series; protect samples from light, use glass containers, and limit extraction delay (phosphorus: within ~1 day; nitrogen: within ~2 days).

Safety and contamination control

Use of flammable/toxic solvents and potentially toxic analytes - follow laboratory safety regulations and strict contamination-prevention practices.

Analytes and auxiliary information

Table of example analytes includes atrazine, simazine, cyanazine, parathion (ethyl/methyl), trifluralin, vinclozolin, terbuthylazine, etc. Annexes provide detection limits, chromatogram examples and MS ions.

Applications and practical value

Environmental monitoring of rivers, lakes and groundwaters for pesticides and organophosphorus/nitrogen compounds.

Drinking water quality testing and regulatory compliance assessments.

Wastewater and effluent surveillance where low-level organic nutrient contaminants must be quantified.

Method transfer and validation in accredited analytical laboratories performing GC-based trace analysis.

Related standards

ISO 5667-1, ISO 5667-2 (sampling guidance)

ISO/TR 13530 (analytical quality control for water analysis)

Keywords: water quality, organic nitrogen, organic phosphorus, gas chromatography, EN ISO 10695, liquid/liquid extraction, liquid/solid extraction, nitrogen-phosphorus detector, pesticide analysis, environmental monitoring.

SIST EN ISO 10695:2000 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and practical value

Who should use this standard

Related standards

Технические детали

ISO 10695:2000

Water quality — Determination of selected organic nitrogen and phosphorus compounds — Gas chromatographic met…

ISO/TR 13530:1997

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