ISO 4518-1980 rus PDF

Full title and description

St ISO 4518-1980 rus — Стандарт ISO 4518:1980 (русский) — "Metallic coatings — Measurement of coating thickness — Profilometric method". This entry represents the original ISO 4518:1980 international standard (English original) with reference to available Russian-language renditions or translations commonly offered by standards distributors.

Abstract

ISO 4518:1980 defines a profilometric (stylus/profile recorder) technique for measuring the thickness of metallic coatings. The method creates a step between coating and substrate surfaces and records the step height with a profile-measuring instrument. It specifies instrument characteristics, measurement procedure, and reporting conventions appropriate to this profilometric application. The 1980 edition was later superseded by a revised ISO 4518 (2021).

General information

• Status: Withdrawn (superseded by ISO 4518:2021).
• Publication date: August 1980.
• Publisher: ISO — International Organization for Standardization.
• ICS / categories: 25.220.40 (Metallic coatings).
• Edition / version: Edition 1 (1980).
• Number of pages: 4.

Scope

This standard covers the profilometric measurement of metallic coating thickness by producing a defined step between the coating surface and the substrate and measuring the step height with a profile-recording instrument. It applies to metallic coatings on flat surfaces and, with appropriate precautions, to cylindrical surfaces. The method is intended for a wide range of metallic coating thicknesses and is especially suitable for very small thicknesses where stylus profilometry is appropriate; practical use and limitations (lower measurement limit) are addressed in the standard.

Key topics and requirements

• Principle of the profilometric (stylus) method: step formation and step-height measurement.
• Instrument characteristics and minimum performance (stylus geometry, resolution, calibration needs).
• Specimen preparation and step-formation techniques (partial removal, masking or other procedures to create a measurable step).
• Measurement procedure: number and location of traces, scanning parameters, and repeatability checks.
• Calibration and use of reference step standards; traceability of measurements.
• Data reduction: calculation of mean thickness, statistical treatment and presentation of results.
• Reporting requirements, including measurement conditions and uncertainty considerations.
• Application limits and practical considerations for very thin coatings and non-flat surfaces.

Typical use and users

Used by plating and surface-treatment laboratories, quality control and inspection personnel in electroplating and galvanizing shops, metallurgical and materials research laboratories, certification bodies, and manufacturers requiring accurate coating-thickness measurement or preparation of thickness reference standards. Common applications include process control, acceptance testing, and laboratory reference measurements where a profilometric (step-height) method is appropriate.

Related standards

Relevant and commonly referenced standards include the revised ISO 4518:2021 (profilometric method), ISO 2178 (magnetic method for non-magnetic coatings on magnetic substrates), ISO 2360 (eddy-current methods), ISO 2808 (film thickness for paints and varnishes — multiple methods), and product-specific standards such as ISO 1461 for hot-dip galvanizing. Selection of the best measurement method often depends on coating type, substrate material and thickness range.

Keywords

metallic coatings; coating thickness; profilometric method; profilometer; step height; measurement procedure; calibration; reference standards; coating inspection; metrology; ISO 4518.

FAQ

Q: What is this standard?

A: ISO 4518:1980 is an international standard that specified a profilometric (stylus) method for measuring the thickness of metallic coatings by creating and measuring a step between coating and substrate.

Q: What does it cover?

A: It covers the principle of the profilometric technique, instrument characteristics, specimen preparation, measurement procedure, calibration, data reduction, reporting and limitations for measuring metallic coating thickness using a profile-recording instrument.

Q: Who typically uses it?

A: Plating and galvanizing plants, inspection and quality-control labs, materials and surface‑engineering researchers, metrology laboratories, and manufacturers who require accurate thickness measurements or reference standards for metallic coatings.

Q: Is it current or superseded?

A: The 1980 edition has been withdrawn and superseded by a revised edition published in 2021 (ISO 4518:2021). Users should refer to the 2021 edition for current requirements and updates.

Q: Is it part of a series?

A: ISO 4518 sits within the group of standards addressing metallic coatings and coating-thickness measurement methods (ICS 25.220.40) and is commonly used alongside complementary methods and standards (magnetic, eddy-current, optical, gravimetric and paint-film standards).

Q: What are the key keywords?

A: Metallic coatings, coating thickness, profilometry, profilometric method, profilometer, step height, measurement, calibration, ISO 4518.