Paints and varnishes. Determination of volatile organic compounds (VOC) and/or semi volatile organic compounds (SVOC) content. Part 1: Gravimetric method for VOC determination (ISO 11890-1:2024)
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This document is part of the ISO 11890 series, dealing with the sampling and testing of coating materials and their raw materials. This document is applicable to the determination of volatile organic compound (VOC) content in the following cases: — case 1: where there are single-pack coating materials other than case 3, and the expected VOC content is greater than a mass fraction of 5 %, including single-pack coating materials cure not through chemical reactions and single-pack coating materials which cannot be measured by ISO 11890-2 due to chemical cure reactions or gas chromatography temperatures leading to formation of new compounds that would not appear under normal cure conditions and impacts VOC/SVOC calculation.; — case 2: where there are multi-pack coating materials other than case 3 and the expected VOC content is greater than a mass fraction of 1 %; — case 3: where there are radiation curable coating materials, and the expected VOC content is greater than a mass fraction of 5 %. Radiation curable coating materials in this document include coating materials that are cured by UV, electron beam, and other radiation methods. If the system of the first case contains SVOC, but do not cure through chemical reactions, the VOC result can be influenced by SVOC, see Annex C. In this case, ISO 11890-2 is preferred. ISO 11890-1 cannot be used for the determination of the SVOC content. In water-borne coating materials, that do not cure through chemical reactions, if the water content is much greater than VOC content and VOC content is less than a mass fraction of 10 %, ISO 11890-2 is preferred. For all three cases, the main purpose measured is VOC. However, clarify that this VOC content can also contain SVOC. The real VOC content can be lower than the VOC content measured by ISO 11890-1. The method specified in this document assumes that the volatile matter is either water or organic. However, it is possible that other volatile inorganic compounds are present which can require another suitable method for quantification, which is thus allowed for in the calculations. The method defined in this document is not applicable for determination of water content.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Required information
6 Apparatus
7 Procedure
7.1 Sampling
7.2 Analysis
8 Calculation
8.1 General
8.2 Method 1: VOC content, as a mass fraction in percentage of the product “ready for use”
8.3 Method 2: VOC content, in grams per litre, of the product “ready for use”
8.4 Method 3: VOC content, in grams per litre, of the product “ready for use” less water
8.5 Method 4: VOC content, in grams per litre, of the product “ready for use” less water and less exempt compounds
9 Results
10 Precision
10.1 General
10.2 Repeatability limit, r
10.3 Reproducibility limit, R
11 Test report
Annex A Items for supplementary information for radiation curable coating materials (normative)
Annex B Non-volatile-matter content (informative)
Annex C Influence of SVOC on the VOC content determined by this document (informative)
Annex D Results of the interlaboratory test (informative)
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 1513:2010 Paints and varnishes — Examination and preparation of test samples
ISO 15528:2020 Paints, varnishes and raw materials for paints and varnishes — Sampling
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 1513:2010 Paints and varnishes — Examination and preparation of test samples
ISO 15528:2020 Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 23168:2019 Paints and varnishes — Determination of water content — Gas-chromatographic method
ISO 2811-1:2023 Paints and varnishes — Determination of density — Part 1: Pycnometer method
ISO 2811-2:2011 Paints and varnishes — Determination of density — Part 2: Immersed body (plummet) method
ISO 2811-3:2023 Paints and varnishes — Determination of density — Part 3: Oscillation method
ISO 2811-4:2011 Paints and varnishes — Determination of density — Part 4: Pressure cup method
ISO 3251:2019 Paints, varnishes and plastics — Determination of non-volatile-matter content
ISO 760:1978 Determination of water — Karl Fischer method (General method)