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//ISO 11047:1998

ISO 11047:1998

Name: ISO 11047:1998 — Soil quality — Determination of cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc — Flame and electrothermal atomic absorption spectrometric methods
SKU: ISO 11047:1998
Price: 25 EUR
Availability: InStock

Soil quality — Determination of cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc — Flame and electrothermal atomic absorption spectrometric methods

Название (английский):

ISO 11047:1998

Soil quality — Determination of cadmium, chromium, cobalt, copper, lead, manganese, nickel and zinc — Flame and electrothermal atomic absorption spectrometric methods

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 18
Дата публикации:: 7 мая 1998 г.
Издание:: ISO IS 11047 edition 1 version 1
ICS:: 13.080.10

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Цена:25 €

Abstract

ISO 11047:1998 - Overview

ISO 11047:1998 defines standardized laboratory methods for determining trace heavy metals in soils - specifically cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), lead (Pb), manganese (Mn), nickel (Ni) and zinc (Zn) - using atomic absorption spectrometry (AAS) on . The standard describes two analytical routes:

Key topics and technical requirements

Elements covered: Cd, Cr, Co, Cu, Pb, Mn, Ni, Zn (in aqua regia extracts of soil).
Method selection criteria: Indicative concentration thresholds guide whether to use flame AAS or electrothermal AAS (e.g., Cd >2 mg/kg for flame AAS; <2 mg/kg for ETAAS).
Instrumental conditions: The standard specifies analytical parameters such as wavelengths, flame types, use of modifiers (e.g., lanthanum chloride), and background-correction techniques appropriate for each element.
Reagents and solutions: Requirements for reagent purity (analytical grade), preparation of stock and working standard solutions (stock solutions replaced within one year; working standards renewed monthly), and detailed recipes for acid blanks and modifiers.
Quality assurance: Use of Certified Reference Materials (CRMs), in-house controls, control charts and established precision/trueness practices per ISO guidelines.
Apparatus and sample handling: Guidance on cleaning glassware (e.g., 5% HNO3 immersion), typical AAS equipment and safe laboratory practice warnings.
Reporting and precision: Defined procedures for calibration, calculation, expression of results and test reporting; precision data and interlaboratory test results are addressed.

Applications and who uses it

ISO 11047 is used by:

Environmental and analytical chemistry laboratories performing soil quality monitoring, contaminated land assessment, and regulatory compliance testing.
Agricultural, mining and remediation consultants assessing trace element contamination and background levels.
Research institutions studying trace metal behavior in soils and evaluating remediation effectiveness.

Practical uses include determining whether soils exceed regulatory or guideline limits, tracking contamination sources, and generating defensible data for environmental impact assessments.

Related standards

ISO 11466 - Extraction of trace elements soluble in aqua regia (sample preparation link)
ISO 11465 - Determination of dry matter and water content (sample basis)
ISO 3696 - Water for analytical laboratory use (reagent water quality)
ISO 5725-1 - Accuracy (trueness and precision) of measurement methods

Keywords: ISO 11047, soil quality, atomic absorption spectrometry, flame AAS, electrothermal AAS, aqua regia extraction, heavy metals, cadmium, lead, chromium, zinc, trace elements.

Технические детали

Технический комитет: ISO/TC 190/SC 3 - Chemical and physical characterization
SKU: ISO 11047:1998

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PDF

ISO 11047:1998

Abstract

ISO 11047:1998 - Overview

Похожие стандарты

Key topics and technical requirements

Applications and who uses it

Related standards

Технические детали

ISO 11466:1995

Soil quality — Extraction of trace elements soluble in aqua regia

BS EN ISO 11465:2025

Sludge and solid environmental matrices. Determination of dry residue or water content and calculation of the…

BS EN ISO 3696:1995

Water for analytical laboratory use. Specification and test methods.

ISO 5725-1:2023

Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definit…