Hivatkozási szám

MSZ EN ISO 15720:2002

Dokumentumazonosító

121447

Cím

Fémbevonatok. A porozitás vizsgálata. A fémek arany- vagy palládiumbevonata porozitásának meghatározása gél-elektrográfiával (ISO 15720:2001)

Angol cím

Metallic coatings. Porosity tests. Porosity in gold or palladium coatings on metal substrates by gel-bulk electrography (ISO 15720:2001)

Alkalmazási terület

This test method covers equipment and techniques for determining porosity in noble metal coatings, particularly electrodeposits of gold, palladium and palladium-nickel alloy (70 % to 90 % palladium) and clad metals used on electrical contacts. The gel-bulk procedure is not as sensitive to small pores and is more complex than porosity tests involving gaseous corrodants (see ISO 14647 and ISO 15721). It also involves more chemicals, preparation and auxiliary equipment. This test is intended to be used for quantitative descriptions of porosity (such as number of pores per unit area or per contact) only on measurement areas where coatings have a sufficiently low pore density such that the corrosion sites are well separated and can be readily resolved. As a general guideline this can be achieved for pore densities up to about 25/cm^2ˇ. Other porosity testing methods are outlined in ISO 10308. Detailed critical reviews of porosity testing are also available. Other porosity test methods are described in ISO 12687, ISO 14647 and ISO 15721.

ICS

25.220.40 Fémbevonatok

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2002-06-01

Forrás

idt EN ISO 15720:2001; idt ISO 15720:2001

Előd

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

kapható formátuma

Papír ,

oldalszáma

14 oldal; G kategória

ára

Nettó: 8000 Ft
Bruttó:
Papír formátum esetén (5% Áfával): 10080 Ft