ISO 12944-6 PDF

DRM is included at the request of the publisher, as it helps them protect their copyright by restricting file sharing. Visit FileOpen to see the full list. January Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 6: Laboratory performance test methods. March Paints and varnishes. Corrosion protection of steel structures by protective paint systems.

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ISO provides owners, consultants, inspectors, and coating manufacturers information on corrosion protection by paint systems. Part 2 of ISO describes the environmental impact of deleterious exposure on steel structures, focusing on structures exposed to the atmosphere as well as those immersed in water or buried in soil. A classification system based on corrosivity categories is provided to aid in the selection of suitable paint systems for adequate corrosion protection. The classification system for atmospheric exposure consists of corrosivity categories C2, C3, C4, and C5.

Corrosivity categories for structures immersed in water or buried in soil are also provided in ISO in addition to special corrosion stresses that may cause a significant increase in corrosion rate or place higher demands on the performance of the protective paint system.

Classifications include Im1, Im2, and Im3. Cathodic disbondment testing is additionally recommended for structures that are under cathodic protection. Examples of water-immersed and soil-buried environments include offshore structures, steel piles, steel pipes, and buried tanks. The corrosivity category defines the type s of exposure to which the coating system will be subjected. Exposures include:. Durability ranges of low, medium, high, and very high are assigned within each corrosivity category.

The durability range defines the duration of the exposure, ranging from 48 to 2, hours. The coating thickness applied to the test panels and adhesion strength of the coating system are measured prior to exposure, and replicate test panels are subjected to each of the exposures separately.

Samples designated for neutral salt spray and cyclic aging are scribed mechanically prior to exposure. Following each of the exposures, specimens are evaluated for blistering, rusting, cracking, flaking, corrosion at the scribe if applicable , and adhesion. All KTA services, laboratories, and equipment sales are operational while we take additional measures to protect the health and safety of our employees during the ongoing COVID outbreak.

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Latest version of document. Specifies test methods for the assessment of paint systems for the protection of steel structures. The results can be used to aid the selection of suitable paint systems. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards. Website: www. Sample Specification Download sample specifications and see what's possible with NBS Chorus Case studies Find out how our customers use our software and services Authors Meet some of our specialists and contributors Training Interactive training courses and educational material, to help you get the most from NBS software tools Downloads and updates Download the latest versions of our software and find out about the latest updates to content About NBS Our Vision, Mission and Values Newsroom All the latest NBS and industry news and stories. Laboratory performance test methods ISO

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ISO 12944-6:2018

ISO provides owners, consultants, inspectors, and coating manufacturers information on corrosion protection by paint systems. Part 2 of ISO describes the environmental impact of deleterious exposure on steel structures, focusing on structures exposed to the atmosphere as well as those immersed in water or buried in soil. A classification system based on corrosivity categories is provided to aid in the selection of suitable paint systems for adequate corrosion protection. The classification system for atmospheric exposure consists of corrosivity categories C2, C3, C4, and C5. Corrosivity categories for structures immersed in water or buried in soil are also provided in ISO in addition to special corrosion stresses that may cause a significant increase in corrosion rate or place higher demands on the performance of the protective paint system.

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