GB/T 17720-1999

Abolished

Metallic coatings--Review of porosity tests

金属覆盖层孔隙率试验评述

Standard Type

GBT

ICS

25.220.40

CCS

A29

Status

废止

Issue Date

1999-04-08

Implementation

1999-09-01

Responsible Dept

中国机械工业联合会

Drafting Unit

N/A

🔗 Related Standards / 同类标准

GB/Z 45463-2025 Method for porosity measurement of thermally sprayed coatings GB/T 5619-1985 Shed storage exposure test--Testing method for rust-proof material GB/T 6808-1986 Anodizing of aluminium and its alloys--Accelerated test of light fastness of coloured anodic oxide coatings using artificial light GB/T 7410-1987 Terms of vitreous and porcelain enamels GB/T 7996-1987 Nominal volume and nominal diameter for glass-lined vessel GB/T 9800-1988 Chromate conversion coatings on electroplated zinc and cadmium coatings GB/T 9790-1988 Metallic and related coatings--Vickers and Knoop microhardness tests GB/T 9988-1988 Test method for alkali resistance of porcelain enamels