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.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Required information
6 Apparatus
7 Reagents
8 Procedure
8.1 Sampling
8.2 Analysis
8.3 Calibration
8.4 Quality assurance
8.5 Gas chromatographic conditions
8.6 Density
8.7 Water content
9 Data analysis
9.1 Integration and identification of compounds
9.2 Classification of compounds
10 Quantitative determination of compound content
10.1 General
10.2 Quantitative determination of compound content
11 Calculation of VOC and SVOC content
11.1 General
11.2 Method 1 — VOC content and/or SVOC content, as a percentage by mass, of the product “ready for use”
11.3 Method 2 — VOC content and/or SVOC content, in grams per litre, of the product “ready for use”
11.4 Method 3 — VOC content and/or SVOC content, in grams per litre, of the product “ready for use” less water
11.5 Method 4 — VOC content and/or SVOC content, in grams per litre, of the product “ready for use” less water and less exempt compounds
12 Data evaluation and calculation of final results
13 Precision
13.1 General
13.2 Repeatability limit, r
13.3 Reproducibility limit, R
14 Test report
Annex A Non-exhaustive list of VOC, SVOC and NVOC compounds (normative)
Annex B Information on thermal unstable products (informative)
Annex C Examples for GC method conditions (informative)
Annex D Results of the round robin test for the determination of precision data (informative)
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 2811-1:2016 Paints and varnishes -- Determination of density -- Part 1: Pycnometer 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 2811-1:2016 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 2811-3:2011 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 760:1978 Determination of water -- Karl Fischer method (General method)