ISO DIS 11890-2
Paints and varnishes — Determination of volatile organic compound (VOC) and semi volatile organic compound (SVOC) content — Part 2: Gas-chromatographic method
|Publication Date:||23 April 2019|
|ICS Code (Paints and varnishes):||87.040|
This document is one of a series of standards dealing with the sampling and testing of coating materials and their raw materials.
It specifies a method for the determination of the volatile organic compounds (VOC) content and the semi-volatile organic compounds (SVOC) content of coating materials and their raw materials.
This part is applicable for the determination of VOC and SVOC if the expected VOC and/or SVOC content is greater than 0,01 % by mass up to 100% by mass.
If the VOC content is greater than 15 % by mass, the less complicated method given in ISO 11890-1 may be used. If the system contains VOC and SVOC, the VOC result of ISO 11890-1 may be influenced by SVOC. In this case ISO 11890-2 shall be preferred. For VOC content smaller than 0,1 %, the head space method described in ISO 17895 can be 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 SVOC signals. When determining VOC and SVOC for coating materials and their raw materials, these signals are artefacts of the method and should not be 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 standard 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 may not be accurate due to a change in the acid or base equilibrium.