EN ISO 2361:2025 PDF

Overview

EN ISO 2361:2025 - "Electrodeposited nickel coatings on magnetic and non‑magnetic substrates - Measurement of coating thickness - Magnetic method" (CEN adoption of ISO 2361:2025) specifies a non‑destructive magnetic method for measuring the thickness of electrodeposited nickel (e‑nickel) coatings on both magnetic and non‑magnetic substrates. The standard clarifies applicability (note: electroless/autocatalytic nickel often is non‑magnetic and may be outside scope), distinguishes two coating/substrate types, and defines effective measuring ranges for common instrument principles.

Key topics and requirements

• Scope and types
  • Type A: nickel on magnetic substrates.
  • Type B: nickel on non‑magnetic substrates.
  • Not all instruments are suitable for both types.
• Measurement principles
  • Magnetic attraction instruments: effective ranges typically up to 50 µm for Type A and 25 µm for Type B.
  • Magnetic reluctance instruments: much greater effective ranges (up to 1 mm or more) and applicable to both types.
• Factors affecting accuracy (documented and to be controlled/assessed)
  • Magnetic properties of the base metal and coating
  • Base metal thickness and mechanical working direction
  • Residual magnetism, edge effects, curvature and surface roughness
  • External magnetic fields, foreign particles, probe pressure and orientation
• Calibration and procedure
  • Calibration against appropriate standards is required; instruments must be calibrated for the coating/substrate combination.
  • Procedure elements covered: number of readings, probe positioning, surface cleanliness, measurement on hot or underwater surfaces, and handling residual magnetism.
• Reporting
  • Test report requirements and traceability information are specified.

Applications and users

• Who uses EN ISO 2361:2025
  • Electroplating and surface‑finishing shops performing quality control
  • Inspection and testing laboratories validating coating thickness
  • OEMs and procurement teams specifying coating acceptance criteria
  • Instrument manufacturers and calibration laboratories
  • Corrosion protection and materials engineers
• Practical uses
  • Routine production inspection of e‑nickel plating
  • Incoming inspection of plated components
  • Compliance with procurement or regulatory coating thickness requirements
  • Selecting appropriate thickness‑gauge technology (attraction vs. reluctance) based on required range and substrate type

Related standards

• The document references normative standards for calibration and terminology (see clause references in EN ISO 2361:2025). Users should pair this standard with general coating and surface‑characterization standards and laboratory calibration standards for best practice.

Keywords: EN ISO 2361:2025, ISO 2361:2025, electrodeposited nickel coatings, e‑nickel, coating thickness measurement, magnetic method, non‑destructive testing, magnetic attraction, magnetic reluctance, calibration.