panimula
ISO (International Organization para sa Standardisasyon) ay isang 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. Ang bawat grupo ng miyembro na interesado sa isang paksa kung saan ang isang teknikal na komite ay itinatag ay may karapatang kumatawan sa Komite. Mga internasyonal na organisasyon, ang mga pamahalaan at mga non government organization na nakikipag ugnayan sa ISO ay kasangkot din sa gawaing ito. 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 standard na pinagtibay ng Technical Committee ay ipapakalat sa mga miyembro ng mga katawan para sa pagboto. Publication as an international standard requires approval by a vote of at least 75% of the member bodies.

Some elements of this part of ISO 591 May be the subject of a patent right. Ang ISO ay hindi mananagot para sa pagtukoy ng anuman o lahat ng naturang patente.

ISO 591-1-2000 “Titanium dioxide pigments for coatings – Bahagi 1: Mga pagtutukoy at pamamaraan ng pagsubok”

The international standard ISO 591-1 was developed by the Technical Committee ISO/TC 35, Mga Pintura at Varnishes, Sub-Committee SC 2, Pigments and increments.

Ang bahaging ito ng ISO 591 cancels and replaces ISO 591:1977 with a technical revision. In contrast to ISO 591:1977, where ISO 591-1 specifies the Nakazono reducing agent method for the determination of titanium dioxide content and allows for the use of other methods with the consent of the interested party, ISO 591-1 contains both methods (see article 7).

ISO 591 binubuo ng mga sumusunod na bahagi, under the general heading titanium dioxide pigments for coatings:

— Bahagi 1: Mga pagtutukoy at pamamaraan ng pagsubok

– Bahagi 2: Determination of the content of minor components

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

ISO 591-1-2000 “Titanium dioxide pigments for coatings – Bahagi 1: Mga pagtutukoy at pamamaraan ng pagsubok”

2 Normatibong mga dokumento ng sanggunian
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. Para sa mga walang petsang sanggunian, the new version applies to this standard. ISO and IEC members maintain a register of currently valid international standards.

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

ISO 648:1977, Mga kagamitan sa laboratoryo ng salamin – Single standard pipettes.

ISO 787-1:1982, General test methods for pigments and increments – Bahagi 1: Paghahambing ng mga kulay ng pigment.

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

ISO 591-1-2000 “Titanium dioxide pigments for coatings – Bahagi 1: Mga pagtutukoy at pamamaraan ng pagsubok”

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

ISO 787-5:1980, General test methods for pigments and increments – Bahagi 5: Determination of oil absorption values.

ISO 787-9:1981, General test methods for pigments and increments-Part 9: Determination of the pH of water suspensions.

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

ISO 787-18:1983, General test methods for pigments and increments – Bahagi 18: Determination of residues on screens – mechanical flushing procedure.

ISO 787-24:1985, General test methods 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-Part 25: Comparison of colours in panchromatic systems of white, black and coloured pigments – Colorimetric method.

ISO 1042:1998, mga laboratory glassware – labeled volumetric bottles.

ISO 3696:1987, Analytical laboratory water use – Mga pagtutukoy at pamamaraan ng pagsubok.

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

ISO 591-1-2000 “Titanium dioxide pigments for coatings – Bahagi 1: Mga pagtutukoy at pamamaraan ng pagsubok”

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 pigments

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

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