Moldova standards PDF

Acoustics - Relation between sound pressure levels of narrow bands of noise in a diffuse field and in a frontally-incident free field for equal loudness. Original standard ISO 454-1975 in PDF full version. Additional info + preview on request

Document status: Withdrawn

Metallic coatings - Coatings cathodic to the substrate - Rating of electroplated test specimens subjected to corrosion tests. Original standard ISO 4540-1980 in PDF full version. Additional info + preview on request

Document status: Replaced by St ISO 10289-1999

Metallic and other non-organic coatings - Corrodkote corrosion test (CORR test). Original standard ISO 4541-1978 in PDF full version. Additional info + preview on request

Document status: Active

Metallic and other non-organic coatings - General rules for corrosion tests applicable for storage conditions. Original standard ISO 4543-1981 in PDF full version. Additional info + preview on request

Document status: Active

Metallic materials - Knoop hardness test - Part 1- Test method. Original standard ISO 4545-1-2023 in PDF full version. Additional info + preview on request

Document status: Active

Metallic materials - Knoop hardness test - Part 2- Verification and calibration of testing machines. Original standard ISO 4545-2-2017 in PDF full version. Additional info + preview on request

Document status: Active