EN ISO 23821:2022 PDF

Name: EN ISO 23821:2022 — Cosmetics - Analytical methods - Determination of traces of mercury in cosmetics by atomic absorbtion spectrometry (AAS) cold vapour technology after pressure digestion (ISO 23821:2022)
SKU: EN ISO 23821:2022
Price: 73.76 EUR
Availability: InStock

Cosmetics - Analytical methods - Determination of traces of mercury in cosmetics by atomic absorbtion spectrometry (AAS) cold vapour technology after pressure digestion (ISO 23821:2022)

Название (английский):

EN ISO 23821:2022

Cosmetics - Analytical methods - Determination of traces of mercury in cosmetics by atomic absorbtion spectrometry (AAS) cold vapour technology after pressure digestion (ISO 23821:2022)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 23
Дата публикации:: 14 сентября 2022 г.
Издание:: CEN EN 23821 edition 1 version 1
ICS:: 71.100.70

Тип поставки:

Full version345 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:4 раб. дн. (перевод)

Цена:345 €

Описание (английский):

This document specifies a method for determination of mercury in cosmetics by means of cold vapour atomic absorption spectrometry (AAS) with a prior pressure digestion.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 23821:2022 specifies an analytical method for the determination of traces of mercury in cosmetics using cold vapour atomic absorption spectrometry (AAS) after pressure (closed-vessel) digestion. Prepared by ISO/TC 217 in collaboration with CEN/TC 392 and adopted as a European standard, this method describes sample digestion, instrumental setup and quality-control measures for reliable mercury quantification in finished cosmetic products.

Key topics and technical requirements

Scope: Determination of mercury in cosmetic matrices by cold vapour AAS following pressure-assisted digestion.

Sample digestion: Closed-vessel pressure digestion (microwave-assisted) at elevated temperature (document notes digestion at about 200 °C) to mineralize cosmetics prior to measurement.

Detector technique: Cold vapour AAS with reduction of Hg(II) (examples: tin(II) chloride or sodium borohydride) and transfer of mercury vapor to the AAS cuvette.

Pre-concentration: Optional use of gold/platinum amalgam (mesh) to concentrate mercury and achieve lower limits of quantification (LOQs).

Reagents and water quality: Use of analytical-grade acids (e.g., HCl 30%, HNO3 65%), reducing agents and water conforming to ISO 3696 Grade 1.

Quality control and validation: Method performance validated by interlaboratory testing (ISO 5725 approach) on cosmetic matrices (e.g., lipstick, lotion, toothpaste, eyeshadow) across mercury levels reported in the standard (approx. 0.110 mg/kg to 5.84 mg/kg). The standard includes procedures for calibration, blanks, and reporting.

Documentation: Prescribed test report items and calculation/evaluation steps including LOQ determination and reliability assessment.

Applications and users

This standard is intended for:

Cosmetic testing laboratories performing routine and regulatory analyses for mercury content.

Quality control (QC) teams in cosmetics manufacturing verifying product safety.

Regulatory authorities and conformity assessors enforcing chemical safety requirements in cosmetics.

Research laboratories studying contaminant occurrence or method performance in cosmetic matrices.

Practical benefits:

Standardized, traceable procedure for accurate mercury quantification.

Compatibility with common laboratory equipment (microwave digestion, cold vapour AAS systems).

Guidance for achieving low LOQs suitable for regulatory compliance and safety risk assessment.

Related standards

ISO 23674 - parallel method development referenced in the standard’s validation context.

ISO 5725 - statistical approach for interlaboratory validation and performance assessment.

ISO 3696 - specification for laboratory water quality used in reagent preparation.

Keywords: EN ISO 23821:2022, mercury in cosmetics, cold vapour AAS, pressure digestion, mercury determination, cosmetics testing, analytical methods.

EN ISO 23821:2022 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 23821:2022

Cosmetics — Analytical methods — Determination of traces of mercury in cosmetics by atomic absorbtion spectro…

SIST EN ISO 3696:1998

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

ISO 5725-6:1994/Cor 1:2001

Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy va…

SIST EN ISO 23674:2023

Cosmetics - Analytical methods - Direct determination of traces of mercury in cosmetics by thermal decomposit…