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 2 of the ISO/IEC Directive.

The main task of the technical committee is to develop international standards. 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.

Please note that certain elements of this document may be subject to patent rights. ISO is not responsible for identifying any or all such patents.

ISO 10601-2007 “Specifications and test methods for mica iron oxide pigments for paints”

ISO 10601 was developed by Technical Committee ISO/TC 35, Paints and Varnishes, Subcommittee SC 2, Pigments and fillers.

The second edition cancelled and replaced the technically revised first edition (ISO 10601:1993).

The main technological changes are:

a) The grade description has been changed to remove the “non-layered” grade;

b) The requirements for residue on the sieve have been changed.

ISO 10601-2007 “Specifications and test methods for mica iron oxide pigments for paints”

introduce
Mica iron oxide pigments were previously included in ISO 1248 (classified as “grey, metallic luster”), but were explicitly excluded in a revision published in 2006. In the revised version of ISO 10601, the requirements for mica iron oxide pigments are more clearly defined and relate to what is essentially a layered particle shape.

Mica iron oxide pigments vary in composition, particle size range and particle shape, depending on whether they are synthetic produced or refined natural oxides, depending on where the ore is mined.

The main use of mica iron oxide is the protective coating of steel structures, in order to obtain better performance, the pigment should have a high content of flaky particles. The protective effect is attributed to the tight packing of pigment flakes within the paint film, forming overlapping layers that are roughly parallel to the substrate. This hinders the penetration of corrosion promoters, reduces UV degradation of the adhesive, and improves the oil film strength. For less important requirements, mica iron oxide pigments with lower flake content may be acceptable. Therefore, in this standard, mica iron oxide pigments are divided into two groups based on sheet content determined by microscopic examination (see Table 1).

For the purposes of this Standard, pigments with a layered particle content of less than 50% are not considered “mica” or classified as “layered”.

ISO 10601-2007 “Specifications and test methods for mica iron oxide pigments for paints”

1 Range
This standard specifies the requirements and corresponding test methods for dry man-made and natural mica iron oxide (MIO) pigments primarily used for protective coatings on steel structures.

In accordance with current practice, the general requirements for mica iron oxide pigments have been subdivided

a) Those required requirements (see Table 2)

b) Requirements conditional on the prior agreement of the interested parties (see table 3).

In some cases, an agreed reference pigment may be used.

2 Normative references
The following reference files are required for the application of this document. For dated references, only the cited version applies. For undated references, a new version of the reference (including any revisions) applies.

ISO 150, raw, refined and cooked flaxseed oil for paints and varnishes – Specification and test methods

ISO 787-2, General test methods for pigments and fillers – Part 2: Determination of volatiles at 105°C

ISO 787-3, General test methods for pigments and fillers – Part 3: Determination of water-soluble substances – Hot extraction method

ISO 787-5, General test methods for pigments and fillers – Part 5: Determination of oil absorption values

ISO 10601-2007 “Specifications and test methods for mica iron oxide pigments for paints”

ISO 787-9, Common test methods for pigments and fillers – Part 9: Determination of the pH value of water suspensions

ISO 1248, iron oxide pigments – Specifications and test methods

ISO 3549, zinc powder pigments for paints – Specifications and test methods

ISO 15528, Paints, varnishes and raw materials for paints and varnishes – Sampling

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

3.1 Mica iron oxide pigment

Refined minerals (also known as specular hematite) or manufactured products consisting primarily of iron oxide (III) Fe2O3, which are gray in color, have a metallic luster and are composed primarily of particles having a layered form

Only the standard information section is public. To see the full content, you need to purchase the standard through the official channels.