EN ISO 11890-2:2020 PDF
Paints and varnishes - Determination of volatile organic compounds(VOC) and/or semi volatile organic compounds (SVOC) content - Part 2: Gas-chromatographic method (ISO 11890-2:2020)
Paints and varnishes - Determination of volatile organic compounds(VOC) and/or semi volatile organic compounds (SVOC) content - Part 2: Gas-chromatographic method (ISO 11890-2:2020)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 48
- Дата публикации:
- 8 июля 2020 г.
- Издание:
- CEN EN 11890 edition 1 version 1
- ICS:
- 87.040
This document is applicable for the determination of VOC and SVOC with an expected VOC and/or SVOC content greater than 0,01 % by mass up to 100 % by mass. The method given in ISO 11890-1 is used when the VOC is greater than 15 % by mass. This document (method ISO 11890-2) applies when the system contains VOC and SVOC as the VOC result of ISO 11890-1 can be influenced by the SVOC. For VOC content smaller than 0,1 %, the head space method described in ISO 17895 is used as an alternative. ISO 11890-1 and ISO 17895 cannot be used for the determination of the SVOC content. NOTE 1 Some ingredients of coating materials and their raw materials can decompose during analysis and cause artificial VOC and/or SVOC signals. When determining VOC and/or SVOC for coating materials and their raw materials, these signals are artefacts of the method and are not taken into account (examples are given in Annex B). This method assumes that the volatile matter is either water or organic. However, other volatile inorganic compounds can be present and might need to be quantified by another suitable method and allowed for in the calculations. The method defined in this document is not applicable for determination of water content. NOTE 2 If organic acids or bases and their corresponding salts are present in the coating material or its raw materials, the amount that is quantified by this method might not be accurate due to a change in the acid or base equilibrium.
Abstract
Overview
EN ISO 11890-2:2020 - "Paints and varnishes - Determination of volatile organic compounds (VOC) and/or semi-volatile organic compounds (SVOC) content - Part 2: Gas-chromatographic method" - is a CEN-endorsed ISO standard specifying a gas chromatographic (GC) procedure to quantify VOC and SVOC in coating materials and raw materials. The method covers concentration ranges from 0.01 % by mass up to 100 % by mass and is intended where SVOC presence can influence VOC results obtained by other methods.
Key topics and technical requirements
- Scope and applicability
- Applicable when expected VOC and/or SVOC > 0.01 % (mass) up to 100 %.
- Recommended when the ISO 11890-1 result (suitable for VOC > 15 %) can be biased by SVOC.
- For VOC < 0.1 %, the headspace method in ISO 17895 is an alternative.
- ISO 11890-1 and ISO 17895 do not determine SVOC content.
- Analytical principle
- Gas-chromatographic separation and quantification of volatile and semi-volatile organics after appropriate sample preparation and solvent handling.
- Essential elements
- Sampling, sample preparation and extraction procedures.
- GC instrumentation and method parameters (column selection, detectors) - detailed examples are given in informative annexes.
- Multi-point calibration, use of calibration standards (CSRF, surrogate standards) and quality assurance.
- Data processing: peak integration, compound classification (VOC vs SVOC), and calculation methods.
- Reporting options: percentage by mass, grams per litre (with or without water/exempt compounds).
- Limitations and method artefacts
- Some coating ingredients may thermally decompose during analysis, producing artificial VOC/SVOC signals (informative Annex B); such artefacts are not counted.
- The method assumes volatile matter is water or organic; volatile inorganic species require separate methods.
- Not suitable for determination of water content; organic acid/base equilibria may affect quantification.
Технические детали
- Технический комитет
- CEN/TC 139 - Paints and varnishes
- SKU
- EN ISO 11890-2:2020
Похожие стандарты
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