Isang Paunang Salita
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Mangyaring tandaan na ang ilang mga nilalaman ng dokumentong ito ay maaaring sumailalim sa mga karapatan sa patent. ISO ay hindi responsable para sa pagtukoy ng anumang o lahat ng naturang mga karapatan sa patent. Details of any patent rights identified during the preparation of the document will be in the introduction and/or in the list of patent claims received by ISO (tingnan iso.org/patents).

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This document is prepared by Technical Committee ISO/TC 35, Mga pintura at barnis, Subcommittee SC 9, General Test methods for paints and varnishes.

ISO 11997-1-2017 – Pagpapasiya ng cyclic kaagnasan paglaban ng paints at barnisan-Bahagi 1: Basa basa na (spray ng asin)/ tuyo / basa

The third edition cancels and replaces the second edition of the technical revision (ISO 11997-1:2005).

Kumpara sa nakaraang edisyon, the main changes are as follows:

– The time when no moisture can be seen on the panel (tingnan sa 6.4) has been changed;

– Added reference to ISO 4628-8 for assessing the degree of delamination and corrosion around markings or other man-made defects;

– Added reference to ISO 4620-10 for assessing the degree of filamentous corrosion;

— Supplementary test conditions previously listed in Annex A have been incorporated into the test report;

— The number and order of attachments have been changed;

– The pH adjustment procedures for salt solutions in Appendices A to D have been implemented since ISO 9227;

– Where possible, the text has been aligned with the new version of ISO 9227.

A list of all parts in the ISO 11997 serye ay maaaring matagpuan sa ISO website.

ISO 11997-1-2017 – Pagpapasiya ng cyclic kaagnasan paglaban ng paints at barnisan-Bahagi 1: Basa basa na (spray ng asin)/ tuyo / basa

Panimula
Mga Pintura, varices and coatings of similar materials are exposed to one of the four cycles of wet and dry conditions specified in this document (see Annex A of Annex D) using the specified salt solution in the cabinet in order to simulate in the laboratory the processes that occur under corrosive outdoor conditions, such as Marine environments. Sa pangkalahatan, a correlation between such outdoor aging and laboratory tests cannot be expected due to the large number of factors affecting the breakdown process. Correlations can only be expected if the effects of important parameters, such as the nature of the contaminant, the spectral distribution of incident irradiance in the relevant photochemical region, the temperature of the specimen, the type and period of wetting, and the relative humidity, on the coating are known. Compared to outdoor aging, the number of variables that can be controlled is smaller when laboratory testing is performed in a cabinet, so the effect is more reproducible. The described method can also provide a means of checking whether the quality of the paint or paint system is maintained.

It has been found that this method can be used to compare the cyclic salt spray tolerance of different coatings. It is most applicable to provide relevant ratings for a range of coated panels that exhibit significant differences in cyclic salt spray resistance.

The test cycles included in this document have been successfully used in the industry for performance evaluation with documented evidence. The cycle can be summarized as follows.

— Cycle A (tingnan ang Annex A) : This cycle is specified in the Japanese automotive standards JASO M 609-91 and JASO M610-92.

— Cycle B (see Annex B) : This is based on the VDA 621-415 cycle, which is widely used in Europe. It has also been shown to correlate well with the natural weathering of thermoset coatings in vehicle corrosion.

-Cycle C (see Annex C) : This cycle was developed in the UK for use in water-soluble and latex paint systems and has been shown to correlate well with natural weathering.

— Cycle D (see Annex D) : This cycle is specified in the Japanese standard JIS K 5621-2003.

Additional loops are intended to be added in subsequent revisions of this document, as they were developed for the evaluation of other paint types.

ISO 11997-2 describes a method for determining paint cycle corrosion resistance that includes UV exposure as part of the cycle. It has been found to have a good correlation with the natural weathering of industrial maintenance coatings.

ISO 11997-1-2017 – Pagpapasiya ng cyclic kaagnasan paglaban ng paints at barnisan-Bahagi 1: Basa basa na (spray ng asin)/ tuyo / basa

1 Saklaw
This document specifies a method for determining the tolerance of a coating to one of the four defined cycles of wet (spray ng asin)/dry/wet conditions using a specified solution.

2 Mga reperensyang normatibo
The following documents are referenced in the text in such a way that some or all of their contents constitute the requirements of this document. Para sa mga petsang sanggunian, ang binanggit na bersyon lamang ang nalalapat. Para sa mga walang petsang sanggunian, ang bagong bersyon ng sanggunian (kasama ang anumang mga rebisyon) angkop.

ISO 1513, Mga pintura at barnis – Pagsusuri at paghahanda ng mga sample ng pagsubok

ISO 1514, Mga pintura at barnis — Test standard panel

ISO 2808, Mga pintura at barnis — Pagpapasiya ng kapal ng pelikula

ISO 3270, Paints and varnishes and their raw materials – temperature and humidity regulated and tested

ISO 3696, analytical laboratory water use – specifications and test methods

ISO 4628-1, Mga pintura at barnis — Assessment of degradation of coatings — number and size of defects and designation of intensity of uniform changes in appearance — Bahagi 1: General introduction and designation system

ISO 4628-2, Mga pintura at barnis — Assessment of degradation of coatings — Designation of the number and size of defects and the intensity of uniform changes in appearance — Bahagi 2: Assessment of the degree of foaming

ISO 4628-3, Mga pintura at barnis — Assessment of degradation of coatings — Designation of the number and size of defects and the intensity of uniform changes in appearance — Bahagi 3: Assessment of the degree of rust

ISO 4628-4, Mga pintura at barnis – Assessment of degradation of coatings – Specification of the number and size of defects and the intensity of uniform changes in appearance – Bahagi 4: Assessment of the degree of cracking

ISO 4628-5, Mga pintura at barnis — Assessment of coating degradation — Designation of the number and size of defects and the intensity of uniform changes in appearance — Bahagi 5: Assessment of the degree of peeling

ISO 4628-8, Mga pintura at barnis — Assessment of degradation of coatings — Designation of the number and size of defects, and the intensity of uniform changes in appearance — Bahagi 8: Assessment of the degree of delimitation and corrosion around markings or other artificial defects

ISO 4628-10, Mga pintura at barnis — Assessment of degradation of coatings — Specification of the number and size of defects and the intensity of uniform changes in appearance — Bahagi 10: Assessment of the degree of filamentous corrosion

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

ISO 17872-2007, Mga pintura at barnis. Guidelines for corrosion testing by introducing scribing marks through metal panel coatings

ISO 11997-1-2017 – Pagpapasiya ng cyclic kaagnasan paglaban ng paints at barnisan-Bahagi 1: Basa basa na (spray ng asin)/ tuyo / basa

3 Mga tuntunin at kahulugan
Walang mga termino at kahulugan na nakalista sa dokumentong ito.

ISO at IEC mapanatili ang mga database ng terminolohiya para sa standardisasyon sa mga sumusunod na address:

– IEC Electronic Encyclopedia: available sa electropedia.org/

– ISO online na platform ng pag browse: available sa iso.org/obp

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