ASTM B602 is the Standard Guide for Attribute Sampling of Metallic and Inorganic Coatings, offering practical guidance for evaluating coated products using attribute-based inspection methods. It helps users apply a consistent approach to determining whether coatings meet acceptance expectations without overcomplicating routine quality checks. As an ASTM standard, it supports clearer communication between suppliers, purchasers, and inspectors when coating quality, conformity, and sampling decisions need to be made.

Overview of ASTM B602

The ASTM B602 guide is centered on attribute sampling for metallic and inorganic coatings, making it relevant when coated parts are assessed by pass/fail or similar categorical criteria. Rather than defining a coating system itself, it provides a technical framework for sampling and inspection decisions tied to coating acceptance. This can be useful in quality control, incoming inspection, and product evaluation where consistent sampling practices help support fair and repeatable judgments.

Common use cases of ASTM B602

ASTM B602 is commonly used when organizations need a structured way to inspect coated articles and decide whether a lot should be accepted or rejected based on attributes. It may be applied in procurement, receiving inspection, production quality checks, or supplier verification for items with metallic or inorganic coatings. The guide is especially relevant when sampling decisions must be documented and applied consistently across repeated evaluations of coated materials or finished components.

Benefits of using ASTM B602

Using ASTM B602 can help reduce uncertainty in coating acceptance decisions by promoting a more consistent sampling approach. That consistency may improve communication across quality teams, suppliers, and customers while supporting more defensible inspection practices. For organizations managing coated products, the guide can assist with compliance workflows, product evaluation, and risk reduction by making attribute-based sampling easier to apply in routine testing and quality control.

• Attribute-based coating sampling
• Metallic and inorganic coating focus
• Inspection and acceptance decisions
• Quality control and supplier review
• Consistent lot evaluation