GB/T 17722-2026 Active National standards

GB/T 17722-2026 Microbeam analysis—Method for thickness measurement on goldcoating layer by SEM

Publish Date: 2026-01-28 Implement Date: 2026-08-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 17722-2026

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Electronic optics and other physical optical instruments

ICS Name: Optical equipment

Publish Date: 2026-01-28

Implement Date: 2026-08-01

Pages: 20 pages

Scope

This document describes the method of measuring the thickness of gold coatings in various gold products using a scanning electron microscope (SEM).
This document is applicable to the measurement of gold coatings with thicknesses ranging from 25 nm to 50 μm. For gold coatings with other thicknesses, refer to the corresponding measurement procedures.
Note: The minimum thickness that can actually be measured is affected by factors such as the image resolution and magnification of the SEM, the performance of the equipment, the sample preparation techniques, and the conductivity of the sample.