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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. International, governmental and non-governmental organizations in liaison with ISO are also involved in this work. ISO ay gumagana nang malapit sa International Electrotechnical Commission (IEC) sa lahat ng bagay ng electrical standardization.

International pamantayan ay drafted alinsunod sa mga patakaran na ibinigay sa Bahagi 3 ng Direktiba ng ISO / IEC.

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.

Attention is drawn to the fact that certain elements of this part of ISO 591 May be the subject of patent rights. Ang ISO ay hindi mananagot para sa pagtukoy ng anuman o lahat ng naturang patente.

International standard ISO 591-1 was developed by Technical Committee ISO/TC 35, Mga Pintura at Varnishes, Subcommittee SC 2, Pigments and Increments.

Ang bahaging ito ng ISO 591 cancels and replaces ISO 591:1977 and is technically revised. In contrast to ISO 591:1, which specifies the Nakazono reductant method for the determination of titanium dioxide content and permits the use of other methods with the consent of the interested party, ISO 591-1 contains two methods (see article 7).

ISO 591 consists of the following parts under the general heading titanium dioxide pigments for paints:

— Bahagi 1: Mga pagtutukoy at pamamaraan ng pagsubok

— Bahagi 2: Determination of minor component content

ISO 591-1-2000 “Titanium dioxide pigments para sa paints – Bahagi 1: Mga pagtutukoy at pamamaraan ng pagsubok”

1 Saklaw ng aplikasyon
Ang bahaging ito ng ISO 591 specifies the requirements for titanium dioxide pigments for paints and the corresponding test methods.

2 Normative reference files
The provisions in the following normative documents are incorporated into this part of ISO 591 by reference to this standard. Para sa mga petsang sanggunian, no subsequent revisions or amendments to these publications will apply. Gayunpaman, parties to agreements based on this part of ISO 591 are encouraged to investigate the possibility of applying new versions of the following normative documents. New versions of undated references are applicable to this standard. Members of ISO and IEC maintain a register of international standards currently in force.

ISO 385-1:1984, mga laboratory glassware – burette – Bahagi 1: Pangkalahatang mga kinakailangan.

ISO 648:1977, mga laboratory glassware – single mark pipettes.

ISO 787-1:1982, General test methods for pigments and increments – Bahagi 1: Comparison of pigment colours.

ISO 787-2:1981, General test methods for pigments and increments-Part 2: Determination of volatiles at 105 °C.

ISO 787-3:2000, General test methods for pigments and increments – Bahagi 3: Determination of water-soluble substances – thermal extraction method.

ISO 787-5:1980, General test methods for pigments and increments – Bahagi 5: Pagpapasiya ng pagsipsip ng langis halaga.

ISO 787-9:1981, General test methods for pigments and increments – Bahagi 9: Determination of the pH value of aqueous suspensions.

ISO 787-14:1973, General test methods for pigments – Bahagi 14: Determination of electrical resistivity of aqueous extracts.

ISO 787-18:1983, General test methods for pigments and increments-Part 18: Determination of residue on screens – Mechanical flushing procedure.

ISO 787-24:1985, General methods of test for pigments and increments – Bahagi 24: Determination of the relative tinting force of coloured pigments and the relative scattering force of white pigments – photometric method.

ISO 787-25:1993, General test methods for pigments and increments – Bahagi 25: Comparison of colours in panchromatic systems of white, black and coloured pigments – colorimetric method.

ISO 1042:1998, Mga kagamitan sa laboratoryo ng salamin – designated volumetric bottles.

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

ISO 15528:2000, Mga Pintura, mga barnis at hilaw na materyales para sa mga pintura at barnis — sampling.

3 Mga Tuntunin at Kahulugan
For the purposes of this part of ISO 591, Ang mga sumusunod na termino at kahulugan ay nalalapat.

3.1 Titanium dioxide pigment

A pigment consisting primarily of titanium dioxide (TiO 2) with a crystal structure of anatase or rutile determined by X-ray examination

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