Overview

ASTM B374-21: Standard Terminology Relating to Electroplating provides essential definitions and explanations for terms used in the field of electroplating and metal finishing. Endorsed by key industry organizations, including the American Electroplaters’ Society and the National Association of Metal Finishers, this standard assists professionals with consistent, industry-accepted terminology when working with electroplated coatings and processes.

This document supports the accurate use of technical language in the development, testing, evaluation, and specification of electroplating processes. By adhering to the standardized terms, users improve communication and efficiency across the global supply chain, manufacturing, and quality control operations.

Key Topics

ASTM B374-21 covers a broad and practical range of terms relevant to electroplating technology and adjacent practices. The terminology outlined includes, but is not limited to:

Processes: Definitions for electroplating, autocatalytic plating (also known as electroless plating), anodizing, mechanical plating, and diffusion coatings.
Materials: Explanations of base metal, substrate, auxiliary anode, composite coatings, and addition agents such as brighteners and dispersing agents.
Equipment & Tools: Terms for plating racks, bus bars, barrel plating machines, Hull cell, and rectifiers.
Coating Characteristics: Vocabulary surrounding adhesion (practical adhesion, peel strength), burning, nodulation, porosity, ductility, and leveling action.
Testing & Quality: References to test methods such as the CASS (copper-accelerated acetic acid salt spray) test, and terms relating to corrosion, embrittlement, crazing, and conversion coatings.
Cleaning & Preparation: Methods and terms for mechanical cleaning, alkaline cleaning, emulsion cleaning, pickling, and degreasing.

Applications

The terminology defined in ASTM B374-21 is widely used in a variety of sectors and contexts involving electroplated and metal finished components, such as:

Manufacturing and Production: Consistent language ensures clear specifications and quality standards for parts and assemblies, especially in automotive, aerospace, electronics, and decorative hardware.
Testing and Quality Assurance: Accurate definitions support standardized test methods and evaluation criteria for coating thickness, adhesion, and corrosion resistance.
Technical Documentation: Specification sheets, work instructions, and training materials rely on standardized terms to minimize confusion and ensure regulatory compliance.
Process Design and Troubleshooting: Understanding terms for equipment setup and process variables helps engineers and operators optimize performance and address defects like blistering, pitting, or poor covering power.
Supply Chain Communication: Facilitates clear and concise communication between suppliers, manufacturers, and customers globally.

Related Standards

ASTM B374-21 references and complements several other important industry standards, including:

ASTM B368: Test Method for Copper-Accelerated Acetic Acid-Salt Spray (CASS Test)
ASTM B380: For specialized corrosion testing
Other ASTM B08 Committee Standards: Covering metallic and inorganic coatings

For comprehensive information and the most current details, consult the official ASTM publications and related standard documentation at www.astm.org.

Maintaining up-to-date terminology is crucial to ensuring clarity, reducing misunderstandings, and supporting quality and safety across the electroplating industry. ASTM B374-21 remains the authoritative resource for defining and communicating technical concepts relating to electroplating and allied processes.

Overview

Key Topics

ASTM B374-21 covers a broad and practical range of terms relevant to electroplating technology and adjacent practices. The terminology outlined includes, but is not limited to:

Processes: Definitions for electroplating, autocatalytic plating (also known as electroless plating), anodizing, mechanical plating, and diffusion coatings.
Materials: Explanations of base metal, substrate, auxiliary anode, composite coatings, and addition agents such as brighteners and dispersing agents.
Equipment & Tools: Terms for plating racks, bus bars, barrel plating machines, Hull cell, and rectifiers.
Coating Characteristics: Vocabulary surrounding adhesion (practical adhesion, peel strength), burning, nodulation, porosity, ductility, and leveling action.
Testing & Quality: References to test methods such as the CASS (copper-accelerated acetic acid salt spray) test, and terms relating to corrosion, embrittlement, crazing, and conversion coatings.
Cleaning & Preparation: Methods and terms for mechanical cleaning, alkaline cleaning, emulsion cleaning, pickling, and degreasing.

Applications

The terminology defined in ASTM B374-21 is widely used in a variety of sectors and contexts involving electroplated and metal finished components, such as:

Manufacturing and Production: Consistent language ensures clear specifications and quality standards for parts and assemblies, especially in automotive, aerospace, electronics, and decorative hardware.
Testing and Quality Assurance: Accurate definitions support standardized test methods and evaluation criteria for coating thickness, adhesion, and corrosion resistance.
Technical Documentation: Specification sheets, work instructions, and training materials rely on standardized terms to minimize confusion and ensure regulatory compliance.
Process Design and Troubleshooting: Understanding terms for equipment setup and process variables helps engineers and operators optimize performance and address defects like blistering, pitting, or poor covering power.
Supply Chain Communication: Facilitates clear and concise communication between suppliers, manufacturers, and customers globally.

Related Standards

ASTM B374-21 references and complements several other important industry standards, including:

ASTM B368: Test Method for Copper-Accelerated Acetic Acid-Salt Spray (CASS Test)
ASTM B380: For specialized corrosion testing
Other ASTM B08 Committee Standards: Covering metallic and inorganic coatings

For comprehensive information and the most current details, consult the official ASTM publications and related standard documentation at www.astm.org.

ASTM B374-21 PDF

Технические детали

Abstract

Overview

Key Topics

Applications

Related Standards

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Abstract

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Applications

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