Page 22 - QRedition5.0 062021

Quality Requirements Edition 5.0 European Enamel Association

4.42 Determination of the adhesion of porcelain and vitreous enamels on Aluminium 4.48 Determination of the resistance against corrosion and creeping after
under the action of an electrolyte (spalling test) mechanical impact
The determination of the adhesion of porcelain and vitreous enamels on Aluminium should see EEA specification 8.6.7

be carried out using the methods as specified in ISO 13805.

4.49 Determination against climatic impact like weathering and UV-resistance
4.43 Quality requirements for regenerative, packed and enamelled heat exchangers see EEA specification 8.6.8
for air-gas and gas-gas heaters
This standard defines the minimum requirements and the functional characteristics of the
porcelain and vitreous enamel coating applied to profiled steel heat exchanger panels in
regenerative heat exchanges, before as well as after packing in the baskets. See EN ISO
28763.

4.44 Determination of the fluidity behaviour, fusion flow test

Method as specified in EN ISO4534.

4.45 Determination of the coefficient of mean linear thermal expansion of glass

Method as specified in EN ISO 20274 and ISO 7991.

4.46 Characteristics of the porcelain and vitreous enamel coatings applied to steel
for writing surfaces
This standard defines the requirements and the functional and aesthetic characteristics of
porcelain and vitreous enamel coatings applied to plane steel for use as writing surfaces
(whiteboards and chalkboards). EN ISO 28762.

4.47 Characteristics of the porcelain and vitreous enamel coatings applied to steel
panels intended for architecture
This European standard specifies the requirements for porcelain and vitreous enamel coat
ing applied to plane rolled steel for both exterior (exposed to weathering) and interior parts of
the buildings. It includes the functional and aesthetic characteristics and resistance to
graffiti of these coatings. EN ISO 28722.

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