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Norm

ISO 3251:2003

Issue date: 2003 02 25

Paints, varnishes and plastics — Determination of non-volatile-matter content

ISO 3251:2003 specifies a method for determining the non-volatile-matter content by mass of paints, varnishes, binders for paints and varnishes, polymer dispersions and c...
Withdrawn: 2008 01 31

ISO 3251:2003 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 1 The non-volatile-matter content of a product is not an absolute quantity but depends upon the temperature and period of heating used for the determination. Consequently, when using this method, only relative and not true values of the non-volatile-matter content are obtained owing to solvent retention, thermal decomposition and evaporation of low-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.

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 not generally applicable. Some polymer compositions tend to decompose during such treatment and therefore give incorrect results.

ISO 3251:2019
2019 05 14
Paints, varnishes and plastics — Determination of non-volatile-matter content
Norm
ISO 3251:2008
2008 01 31
Paints, varnishes and plastics — Determination of non-volatile-matter content
Norm
ISO 3251:2003
2003 02 25
Paints, varnishes and plastics — Determination of non-volatile-matter content
Norm
ISO 1625:1998
1998 02 05
Plastics — Polymer dispersions — Determination of non-volatile matter (residue) at specified tempera...
Norm
ISO 8618:1995
1995 12 27
Plastics — Liquid phenolic resins — Conventional determination of non-volatile matter
Norm
ISO 3251:1993
1993 09 23
Paints and varnishes — Determination of non-volatile matter of paints, varnishes and binders for pai...
Norm
ISO 8618:1987
1987 09 17
Plastics — Liquid phenolic resins — Conventional determination of non-volatile matter
Norm
ISO 1625:1977
1977 11 01
Plastics — Aqueous dispersions of polymers and copolymers — Determination of residue at 105 degrees ...
Norm
ISO 3251:1974
1974 11 01
Paint media — Determination of volatile and non-volatile matter
Norm
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Norm
ISO 3251:2008
Issue date : 2008 01 31
Paints, varnishes and plastics — Determination of non-volatile-matter content