introduction
ISO (International Organization for Standardization) is a global alliance of national standards bodies (ISO member bodies). The development of international standards is usually carried out through ISO technical committees. Each member institution interested in a subject on which a technical committee has been established has the right to be represented on that committee. International governmental and non-governmental organizations liaising with ISO are also involved in this work. ISO works closely with the International Electrotechnical Commission (IEC) on all matters of electrical standardization.

International standards are drafted in accordance with the rules given in Part 3 of the ISO/IEC Directive.

The draft international standard adopted by the Technical Committee will be circulated to the member bodies for voting. Publication as an international standard requires approval by at least 75% of member institutions.

ISO 6744-1-1999 Adhesive alkyd resins for paints and varnishes – Part 1: General test methods

You are advised that some elements of this part of ISO 6744 May be the subject of a patent right. ISO is not responsible for identifying any or all such patents.

The international standard ISO 6744-1 was developed by Technical Committee ISO/TC 35, Paints and Varnishes, Subcommittee SC 10, Test Methods for adhesives for Paints and varnishes.

Together with other parts (see below), this part of ISO 6744 cancels and replaces the technically revised ISO 6744:1984.

ISO 6744 consists of the following parts, under the general heading Paints and varnishes binders – alkyd resins:

– Part 1: General test methods

– Part 2: Determination of phthalic anhydride content

– Part 3: Determination of unsaponifiable matter content

– Part 4: Determination of fatty acid content

1 Range
This part of ISO 6744 describes a general test method for alkyd resins used in paints, varnishes and similar products. It is also suitable for solutions and similar preparations made from alkyd resins that are intended to be used as adhesives for paints and varnishes.

The test method for individual alkyd resins shall be agreed upon by the parties concerned.

ISO 6744-1-1999 Adhesive alkyd resins for paints and varnishes – Part 1: General test methods

2 Normative references
The following normative documents contain provisions that, by reference herein, constitute the provisions of this part of ISO 6744. For dated references, any subsequent revisions or amendments to these publications will not apply. However, Parties to an agreement based on this part of ISO 6744 are encouraged to investigate the possibility of applying new versions of the following normative documents. For undated references, a new version of the standard-setting document referred to applies. ISO and IEC members maintain a register of currently valid international standards.

ISO 1523-1983, paints, varnishes, petroleum and related products. Determination of flash point. Closed cup balance method.

ISO 2431-1993 Paints and varnishes. Use a flow cup to measure the flow time.

ISO 2811-1:1997, Paints and varnishes. Determination of density – Part 1: Specific gravity bottle method.

ISO 3219-1993, Plastics. Liquid polymers/resins or emulsions or dispersions. The viscosity is determined using a rotary viscometer with a specified shear rate.

ISO 6744-1-1999 Adhesive alkyd resins for paints and varnishes – Part 1: General test methods

ISO 3251-1993 Paints and varnishes. Paints and varnishes — Determination of non-volatile substances for paints, varnishes and adhesives.

ISO 3679-1983, Quick balance method for determination of flash points of paints, varnishes, petroleum and related products

ISO 3681:1996 – Determination of saponification value of adhesives for paints and varnishes – titration method

ISO 3682-1996 Adhesives for paints and varnishes. Determination of acid value – titration method.

ISO 4629-1996, adhesives for paints and varnishes. Determination of hydroxyl number – titration method.

ISO 4630:1997 Adhesives for paints and varnishes – Estimation of the colour of clear liquids using the Gardner colour scale.

ISO 6271:1997, Transparent liquids – color estimation using the platinum-cobalt scale.

ISO 6744-2:1999 Adhesives for paints and varnishes – alkyd resins – Part 2: Determination of phthalic anhydride content.

ISO 6744-3:1999 Adhesives for paints and varnishes – alkyd resins – Part 3: Determination of unsaponifiable matter content.

ISO 6744-1-1999 Adhesive alkyd resins for paints and varnishes – Part 1: General test methods

ISO 6744-4:1999, adhesives for paints and varnishes – alkyd resins – Part 4: Determination of fatty acid content.

ISO 15716:-1), adhesives for paints and varnishes – Storage stability.

ASTM D 6166-97, Standard Test Method for Color of Naval Warehouses and Related Products (Instrumental Determination of Gardner Color).

3 Terms and definitions
For this part of ISO 6744, the following terms and definitions apply.

3.1 alkyd resin

A synthetic resin produced by polycondensation of polyacids and fatty acids (or oils) with polyols

3.2 Modified alkyd resin

ISO 6744-1-1999 Adhesive alkyd resins for paints and varnishes – Part 1: General test methods

Alkyd resin, modified to obtain specific properties, such as with rosin acid, phenolic resin, vinyltoluene, styrene, isocyanate, polyamide or acrylic, epoxy resin or silicone compounds

Note 1: Alkyd resins based on tall oil fatty acids containing no more than 4% abietic acid are considered “alkyd resins” and not “modified alkyd resins”.

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