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Description of ASTM-D6943 2010ASTM D6943 - 10Standard Practice for Immersion Testing of Industrial Protective CoatingsActive Standard ASTM D6943 | Developed by Subcommittee: D01.46 Book of Standards Volume: 06.02 ASTM D6943Significance and Use Protective coatings are used on metallic and concrete storage and processing vessels, shipping containers, dams and rail cars to protect the substrate from corrosive attack and to protect stored materials (cargo) from contamination. This method provides a means to assess the ability of a protective coating to resist degradation by chemicals and to protect the liquid cargo from contamination by either the substrate or coating, based on visual observations. Other measures of degradation, such as changes in weight or dimensions of the coating material, or chemical changes to the cargo, may be used to assess this protective ability as mutually agreed upon between contracting parties. This standard practice covers three approaches to conducting evaluations of a lining coating materials fitness for purpose. Method A Evaluation of specimens under conditions of constant temperature at atmospheric pressure, (that is, without a thermal gradient). Method B Evaluation of specimens under conditions which provides a temperature gradient across the sample: The temperature may increase from coated side to uncoated side (Method B1) or decrease from coated side to uncoated side (Method B2). Method C Evaluation of specimens under conditions of constant temperature and increased pressure, (that is, without a thermal gradient). Exposure of materials of known performance (a control) at the same time as the test material is recommended. 1. Scope 1.1 This practice establishes procedures for the evaluation of the resistance of industrial protective coatings to immersion in chemicals. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parenthesis are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM Standards C868 Test Method for Chemical Resistance of Protective Linings D16 Terminology for Paint, Related Coatings, Materials, and Applications D610 Practice for Evaluating Degree of Rusting on Painted Steel Surfaces D714 Test Method for Evaluating Degree of Blistering of Paints D2200 Practice for Use of Pictorial Surface Preparation Standards and Guides for Painting Steel Surfaces D3359 Test Methods for Measuring Adhesion by Tape Test D3363 Test Method for Film Hardness by Pencil Test D4138 Practices for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive, Cross-Sectioning Means D4417 Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel D4538 Terminology Relating to Protective Coating and Lining Work for Power Generation Facilities D4541 Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers D5139 Specification for Sample Preparation for Qualification Testing of Coatings to be Used in Nuclear Power Plants D5162 Practice for Discontinuity (Holiday) Testing of Nonconductive Protective Coating on Metallic Substrates D6132 Test Method for Nondestructive Measurement of Dry Film Thickness of Applied Organic Coatings Using an Ultrasonic Gage D6577 Guide for Testing Industrial Protective Coatings D6677 Test Method for Evaluating Adhesion by Knife D7055 Practice for Preparation (by Abrasive Blast Cleaning) of Hot-Rolled Carbon Steel Panels for Testing of Coatings D7091 Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals D7234 Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers G113 Terminology Relating to Natural and Artificial Weathering Tests of Nonmetallic Materials NACE Standard TM0174-2002 Laboratory Methods for the Evaluation of Protective Coatings and Lining Materials on Metallic Substrates in Immersion ServiceKeywords chemical; concrete; cycling; evaluation; immersion; panels; steel; temperature gradient; testing; Chemicals; Contamination--coatings; Degradation--paints/related coatings/materials; Immersion--coatings; Protective coatings; ICS Code ICS Number Code 25.220.99 (Other treatments and coatings) DOI: 10.1520/D6943-10 ASTM International is a member of CrossRef. ASTM D6943The following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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