prEN ISO 4969
Plienas. Makroskopiniam tyrimui skirtas ėsdinimo metodas (ISO 4969:2015)
Standarto projektas Viešoji apklausa
Komentavimo iki data
2027-01-10
Eksportuoti komentarus
Projekto etapai
1. Decision on WI Proposal
2. Projektas
3. Viešoji apklausa
Nuo 2026-11-03
iki 2027-01-10
4. Closure of enquiry
5. Submission to Formal Vote
Organizacija
CEN Europos standartizacijos komitetasICS
77.040.99 - Kiti metalų bandymo metodaiTechnikos komitetas
TK 49 Metalinės medžiagosUžsienio technikos komitetas
CEN/TC 459/SC 1Komentarų skaičius
0Komentavimo pradžia
2026-11-03Taikymo sritis
ISO 4969:2015 establishes guidelines for the macroscopic examination of steel by hot etching, room temperature etching and electrolytic etching. The method has very wide application. Selection of the type, concentration and temperature of the reagent, the etching apparatus and the conditions of surface preparation of the test piece make it possible to achieve the required aim. NOTE It might be difficult to see fine voids and cracks and discriminate between them and determine their nature by macroetching.