Isang Paunang Salita
ISO (International Organization para sa Standardisasyon) ay isang pandaigdigang alyansa ng mga pambansang pamantayan 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 institusyon ng miyembro na interesado sa isang paksa kung saan ang isang teknikal na komite ay itinatag ay may karapatang kumatawan sa komite. Ang pamahalaan at mga di pampamahalaang internasyonal na organisasyon na nakikipag ugnayan sa mga organisasyon ng standardization ay kasangkot din sa gawaing ito. ISO ay gumagana nang malapit sa International Electrotechnical Commission (IEC) sa lahat ng bagay ng electrical standardization.

Ang mga pamamaraan na ginamit upang bumuo ng dokumentong ito pati na rin ang mga ginagamit para sa karagdagang pagpapanatili ay inilarawan sa Bahagi 1 ng Direktiba ng ISO / IEC. Sa partikular na, pansin ay dapat bayaran sa iba't ibang mga pamantayan sa pag apruba na kinakailangan para sa iba't ibang uri ng mga dokumento ng ISO. Ang dokumentong ito ay nabuo alinsunod sa mga patakaran ng editoryal ng Bahagi 2 ng Direktiba ng ISO / IEC (tingnan iso.org/directives).

ISO 12944.3-2017 “Paint and varnish protection paint systems for corrosion protection of steel structures – Bahagi 3: Design content”

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).

Ang anumang mga pangalan ng kalakalan na ginamit sa dokumentong ito ay ibinigay bilang impormasyon para sa kaginhawahan ng gumagamit at hindi bumubuo ng isang endorsement.

Kusang loob, kaugnay na pamantayan at pag alinsunod pagtatasa kaugnay ISO tiyak at ipahayag ang kahulugan ng mga terminolohiya pati na rin sa mga kaugnay na ISO teknikal na hadlang sa kalakalan (TBT) sumunod sa prinsipyo ng world trade organization (WTO) impormasyon, mangyaring sumangguni sa sumusunod na URL:iso.org/iso/foreword.html.

ISO 12944.3-2017 “Paint and varnish protection paint systems for corrosion protection of steel structures – Bahagi 3: Design content”

This document has been prepared by Technical Committee ISO/TC 35, Paints and varnished, Subcommittee SC 14, Protective coating Systems for Steel Structures.

The second edition eliminates and replaces the technically revised first edition (ISO 12944-3:1998).

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

– Deleted terms and definitions not used in the main part of the standard;

— Na-update na ang mga reperensya sa normatibo;

— 5.1 idinagdag pa “general”;

— 5.3 added the requirements for gap sealing materials;

– Increased requirements for surface treatment in C4 and higher and Im1 to Im4 with high and very high durability;

— The headings of Table A.1 have been corrected;

— A key is added in Figure B.1;

– Figure D.1c) has been deleted;

– Added the radius requirement in Figures D.5 and D.7;

– Added bibliography;

— The text has been edited and revised.

ISO 12944.3-2017 “Paint and varnish protection paint systems for corrosion protection of steel structures – Bahagi 3: Design content”

A list of all parts in the ISO 12944 serye ay maaaring matagpuan sa ISO website.

Panimula
Unprotected steel in the atmosphere, water, and soil is subject to corrosion, which leads to damage. Kaya nga, to avoid corrosion damage, steel structures are usually protected to withstand the corrosion stresses that will be borne during the required service life of the structure.

There are different ways to protect steel structures from corrosion. ISO 12944 (all parts) addresses the protection of coating systems and covers, and in the individual parts, all functions are important to achieve adequate corrosion protection. Other measures or other measures may be taken, but special agreements between the parties concerned are required.

ISO 12944.3-2017 “Paint and varnish protection paint systems for corrosion protection of steel structures – Bahagi 3: Design content”

To ensure effective corrosion protection of steel structures, owners of such structures, planners, consultants, companies carrying out corrosion protection work, protective coating inspectors and manufacturers of coating materials need to have new information about corrosion protection of coating systems. It goes without saying that such information should be as complete, clear and easy to understand as possible to avoid difficulties and misunderstandings by the parties involved in the actual implementation of conservation work.

ISO 12944 (all parts) is intended to provide this information in the form of a series of instructions. It is written for those with some technical knowledge. It is also assumed that users of ISO 12944 (all parts) are familiar with other relevant international standards, especially those dealing with surface treatment.

Although ISO 12944 (all parts) does not address financial and contractual issues, please note the fact that non-compliance with the requirements and recommendations given in ISO 12944 (all parts) can lead to serious financial consequences due to the huge impact of inadequate corrosion protection.

ISO 12944-1 defines the overall scope of ISO 12944. It provides some basic terms and definitions and Outlines other parts of ISO 12944. Bukod pa rito, it includes general statements on health, safety and environmental protection, as well as guidelines for the use of ISO 12944 (all parts) in specific projects.

This document provides guidance on how to minimize the risk of corrosion with appropriate design measures to apply protective coating systems.

ISO 12944.3-2017 “Paint and varnish protection paint systems for corrosion protection of steel structures – Bahagi 3: Design content”

1 Saklaw
This document deals with basic standards for the design of steel structures coated by protective coating systems to avoid premature corrosion and degradation of the coating or structure. It gives examples of appropriate and inappropriate design, pointing out how to avoid problems with application, inspection and maintenance of paint systems. Design measures to facilitate the handling and transportation of steel structures are also considered.

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 1461, Hot dip galvanized coatings on steel products-Specifications and test methods

ISO 8501-1, Preparation of steel substrates before painting and related products – Visual assessment of surface cleanliness – Bahagi 1: Rust class and preparation class of uncoated steel substrates and steel substrates after overall removal of previous coating

ISO 8501-3, Preparation of steel substrates before painting and related products – Visual assessment of surface cleanliness – Bahagi 3: Preparation classes for welds, edges and other surface defect areas

ISO 12944-1, Mga pintura at barnis – Corrosion protection of steel structures through protective coating systems – Bahagi 1: General introduction

ISO 12944-2, Mga pintura at barnis – Corrosion protection of steel structures by protective coating systems – Bahagi 2: Environmental classification

ISO 12944-4, Mga pintura at barnis — Corrosion protection of steel structures by protective coating systems — Bahagi 4: Types of surfaces and finishes

ISO 12944-5, Mga pintura at barnis — Corrosion protection of steel structures with protective coating systems — Bahagi 5: Protective coating systems

ISO 12944-6, Mga pintura at barnis – Corrosion protection of steel structures by protective coating systems – Bahagi 6: Laboratory performance test methods

ISO 12944-7, Mga pintura at barnis – Corrosion protection of steel structures through protective c paint systems – Bahagi 7: Execution and supervision of paint work

ISO 12944-8, Mga pintura at barnis – Corrosion protection of steel structures by protective coating systems – Bahagi 8: Development of new work and maintenance specifications

ISO 12944-9, Mga pintura at barnis — Corrosion protection of steel structures by protective paint systems — Bahagi 9: Protective paint systems and laboratory performance test methods for offshore and related structures

ISO 14713-1, Zinc coatings – Guidelines and recommendations for the protection of steel against corrosion in structure-Part 1: General principles for design and corrosion resistance

ISO 14713-2, Zinc coatings – Guidelines and recommendations for the protection of steel against corrosion in structures – Bahagi 2: Mainit dip galvanizing

ISO 12944.3-2017 “Paint and varnish protection paint systems for corrosion protection of steel structures – Bahagi 3: Design content”

3 Mga tuntunin at kahulugan
Para sa mga layunin ng dokumentong ito, ang mga termino at kahulugan na ibinigay sa ISO 12944-1, ISO 12944-2, ISO 12944-2, ISO 12944-5, ISO 12944-6, ISO 12944-7, ISO 12944-8, ISO 12944-9 at ang mga sumusunod na artikulo ay nalalapat.

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

3.1 Design

The way the structure is constructed is represented by a detailed plan of the structure considering corrosion protection

Tanging ang karaniwang bahagi ng impormasyon ay magagamit sa publiko. Upang makita ang buong nilalaman, Kakailanganin mong bilhin ang mga pamantayan sa pamamagitan ng mga pormal na channel.