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Standardized methodologies for assessing surface durability of glass-ceramic coatings Introduction to ISO 28723 ISO 28723 specifies test methods for determining the scratch hardness of vitreous enamel coatings. Vitreous enamel — a glass-ceramic coating fused to metal substrates at high temperatures…
Global standard for spark plug performance, dimensions, and durability requirements Introduction to ISO 28741 ISO 28741 is the international standard governing spark plugs for internal combustion engines. It defines dimensional specifications, performance requirements, test methods, and marking conventions for spark…
Quality requirements and test methods for enameled low-carbon steel products Introduction to ISO 28762 ISO 28762 is the international standard that specifies requirements for vitreous enamel coatings applied to low-carbon steel substrates. Low-carbon steel (typically with carbon content below 0.08%)…
Standard methods for evaluating surface friction and safety of enameled products Introduction to ISO 28763 ISO 28763 specifies test methods for determining the slip resistance of vitreous enamel surfaces. Slip resistance — the frictional characteristic of a surface that resists…
Vitreous and porcelain enamels — Part 3: Thermal shock resistance 1. Understanding Thermal Shock in Glass-Lined Equipment ISO 28721-3:2008 specifies thermal shock resistance requirements for glass-lined chemical process apparatus operating within the temperature range of -25 °C to +230 °C.…
Vitreous and porcelain enamels — Part 4: Quality requirements for glass-lined flanged steel pipes and fittings 1. Scope and Applicability of ISO 28721-4 ISO 28721-4:2015 specifies comprehensive quality requirements for glass-lined flanged steel pipes and fittings used in chemical process…
Vitreous and porcelain enamels — Part 5: Presentation and characterization of defects 1. Systematic Defect Classification Framework ISO 28721-5:2016 establishes a comprehensive and systematic framework for cataloguing, describing, and classifying enamelling defects that occur on glass-lined chemical equipment. The standard…
Standard methods for evaluating coating-substrate bond integrity in advanced ceramics Introduction to ISO 28722 ISO 28722 specifies test methods for determining the adhesion of fine ceramic coatings applied to various substrate materials. Fine ceramics — also known as advanced or…
Determination of resistance to chemical corrosion by alkaline liquids using a cylindrical vessel 1. Principle and Scope of the Cylindrical Vessel Method ISO 28706-4:2016 specifies a test method for determining the resistance of vitreous and porcelain enamelled articles to attack…
Determination of resistance to chemical corrosion by alkaline liquids using a closed system 1. Principle and Scope of the Closed-System (Autoclave) Method ISO 28706-5:2010 specifies a closed-system test method for determining the resistance of vitreous and porcelain enamelled articles to…