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ISO (International Organization para sa Standardisasyon) ay ang pandaigdigang pederasyon ng mga pambansang pamantayan ng katawan (Mga katawan ng miyembro ng ISO). Ang pagbuo ng mga internasyonal na pamantayan ay karaniwang isinasagawa sa pamamagitan ng ISO teknikal na komite. Each member group interested in a subject on which a technical committee has been established has the right to be represented on the Committee. Governmental and non-governmental international organizations liaising with ISO are also involved in this effort. ISO ay gumagana nang malapit sa International Electrotechnical Commission (IEC) sa lahat ng bagay ng electrical standardization.

Ang draft international standards na pinagtibay ng Technical Committee ay ipapakalat sa mga miyembro ng katawan para sa pagboto. Publication as an international standard requires approval by a vote of at least 75% of the member body.

The international standard ISO 3549 was developed by the Technical Committee ISO/TC 35, Mga Pintura at Varnishes, Subcommittee SC 2, Pigments and Increments.

Ang ikalawang edisyon ay kinakansela at pinalitan ang unang edisyon (ISO 3549:1976), na kung saan ay teknikal na binago.

ISO 3549-1995 “Zinc powder pigments for paints — Mga pagtutukoy at pamamaraan ng pagsubok”

1 Saklaw ng aplikasyon
This international standard specifies the requirements and corresponding test methods for zinc powder pigments suitable for protective coatings.

2 Normative reference files

The following standards contain provisions which, by reference in this standard, constitute provisions of this International standard. At the time of publication, the version shown is valid. All standards are subject to revision and parties to an agreement based on this international standard are encouraged to investigate the possibility of applying the latest versions of the following standards. IEC and ISO members maintain a register of international standards currently in force.

ISO 565:1990, Nominal dimensions for openings of test screens — wire cloths, perforated metal sheets and electrocast sheets.

ISO 594-1:1986, tapered joints of 6 per cent taper (luhr) for use in syringes, needles and certain other medical devices – Bahagi 1: Pangkalahatang mga kinakailangan.

ISO 842:1984, Raw Materials for paints and varnishes – Pag sampling.

– ISO 3696:1987, Analytical laboratory water – Pagtutukoy at mga pamamaraan ng pagsubok.

ISO 3549-1995 “Zinc powder pigments for paints — Mga pagtutukoy at pamamaraan ng pagsubok”

3 Kahulugan
For the purposes of this international standard, the following definitions apply.

3.1 Zinc powder pigment

A fine gray powder of basically spherical particles, composed mainly of metallic zinc.

Tala 1: Zinc metal content, chemical purity, particle shape, pamamahagi ng laki ng partikulo, average and maximum diameter of zinc powder pigments used in coatings may vary. All of these changes may affect the behavior of zinc powder in coatings coating parameters such as dispersity, grinding fineness, reactivity, electrical conductivity and filling properties.

Ang standard information section lamang ang pampubliko. Upang makita ang buong nilalaman, kailangan mong bilhin ang pamantayan sa pamamagitan ng mga opisyal na channel.