DIN EN ISO 3251:2008
Paints, varnishes and plastics - Determination of non-volatile-matter content (ISO 3251:2008); German version EN ISO 3251:2008

Standard No.

DIN EN ISO 3251:2008

Release Date

2008

Published By

German Institute for Standardization

Status

Be replaced

Replace By

DIN EN ISO 3251 E:2018

Latest

DIN EN ISO 3251:2019-09

Replace

DIN EN ISO 3251:2006 DIN EN ISO 3251:2003

Scope

This International Standard specifies a method for determining the non-volatile-matter content by mass of paints, varnishes, binders for paints and varnishes, polymer dispersions and condensation resins such as phenolic resins (resols, novolak solutions, etc.). The method is also applicable to formulated dispersions containing fillers, pigments and other auxiliaries (e.g. thickeners and film-forming agents). For the method to be usable for unplasticized polymer dispersions and rubber latices, the non-volatile residue (which consists essentially of the polymeric material and of small quantities of auxiliaries such as emulsifiers, protective colloids, stabilizers, solvents added as film-forming agents and -- especially for rubber latex concentrate -- preserving agents) has to be chemically stable under the test conditions. For plasticized samples, the residue, by definition, normally includes the plasticizer. NOTE I The non-volatile-matter content of a product is not an absolute quantity but depends upon the temperature Q and period of heating used for the determination. Consequently, when using this method, only relative and not true values for non-volatile-matter content are obtained owing to solvent retention, thermal decomposition and evaporation of Iow molecular mass constituents. The method is therefore primarily intended for testing different batches of the same type of product. NOTE 2 This method is suitable for synthetic rubber latices provided heating for a specific period of time is considered appropriate (ISO 124 specifies heating until the loss in mass of a 2 g test portion following successive periods of heating is less than 0,5 rog). NOTE 3 In-house methods for determining non-volatile matter often include drying with infrared or microwave radiation. Standardization of such methods is not possible, since they are net generally applicable. Some polymer compositions tend to decompose during such treatment and therefore give incorrect results. ISO 3233 and ISO 23811 specify methods for determining the volume of non-volatile matter in paints, varnishes and related products.

DIN EN ISO 3251:2008 Referenced Document

• ISO 123 Rubber latex - Sampling
• ISO 124 Latex, rubber - Determination of total solids content*， 2014-03-01 Update
• ISO 1513 Paints and varnishes - Examination and preparation of test samples*， 2010-05-01 Update
• ISO 15528 Paints, varnishes and raw materials for paints and varnishes — Sampling*， 2020-05-13 Update
• ISO 2431 Paints and varnishes — Determination of flow time by use of flow cups*， 2019-06-17 Update

DIN EN ISO 3251:2008 history

• 2019 DIN EN ISO 3251:2019-09 Paints, varnishes and plastics - Determination of non-volatile-matter content (ISO 3251:2019); German version EN ISO 3251:2019
• 2019 DIN EN ISO 3251:2019 Paints, varnishes and plastics - Determination of non-volatile-matter content (ISO 3251:2019)
• 1970 DIN EN ISO 3251 E:2018-07 Determination of non-volatile substance content in paints, varnishes and plastics (draft)
• 2018 DIN EN ISO 3251 E:2018 Draft Document - Paints, varnishes and plastics - Determination of non-volatile-matter content (ISO/DIS 3251:2018); German and English version prEN ISO 3251:2018
• 2008 DIN EN ISO 3251:2008 Paints, varnishes and plastics - Determination of non-volatile-matter content (ISO 3251:2008); German version EN ISO 3251:2008
• 0000 DIN EN ISO 3251:2006
• 0000 DIN EN ISO 3251:2003