ISO 7599-2018 pdf free.Anodizing of aluminium and its alloys一Method for specifying decorative and protective anodic oxidation coatings on aluminium.
The information required from the customer by the anodizer in order to anodize the product correctly is given in 42 and 4: 42 specifies information that is essential whenever a product is to be anodized; 4,3 identifies additional information required for particular product applications. A summary of the subclause references relating to this information is given in Annex F.
NOTE Certain properties (for example, high specular reflectance) are only obtainable by the use of special alloys, and some properties can be incompatible with others.
The customer and the anodizer can share the information about cleaning in case of external architectural application (see Annex E).
4.2 Essential information
The following information shall be supplied by the customer to the anodizer, if necessary in consultation with the aluminium supplier and/or anodizer:
a) a reference to this document, i.e. ISO 7599;
b) the intended service use of the article to be anodized;
c) the specification of the aluminium to be anodized;
d) an indication of the significant surface(s) of the article to be anodized;
e) the surface preparation to be used on the aluminium before anodizing;
1) the anodic oxidation coating thickness class required (see 2);
g) whether a clear or coloured anodized finish is required;
Significant surfaces as per d) above are indicated preferably by drawings or by suitably marked test specimens; in some cases, there can be dilferent requirements for the finish on different parts of the significant surface(s).
The surface preparation as per e) above is indicated preferably by agreed samples; guidance on surface preparation is given in Annex B.
NOTE Guidance on the choice of aluminium is given in Annex A.
4.3 Additional information
Additional information can be required for certain applications and, if so, shall be specified by the
customer, if necessary in consultation with the anodizer. It includes the following:
a) the type of anodizing and the colouring process to he used;
b) details of any formal sampling plans required;
c) the preferred position and maximum size of contact marks;
d) any limits of variation of final surface finish on the significant surface(s);
e) the colour of the anodized article(s) and maximum limits of colour variation (see 8.2);
1) any requirements for quality of sealing;
g) any requirements for corrosion resistance and the method of test to be used;
h) any requirements for abrasion resistance, the property to be tested and the measurements required (i.e. wear resistance, wear resistance coefficient, wear index, mass wear index, mean specific abrasion resistance) and the method of test to be used;
i) any requirements for resistance to cracking by deformation;
j) any requirements for fastness to light or ultraviolet radiation of coloured anodic oxidation coatings;
k) any requirements for light reflection properties, i.e. total reflectance, specular reflectance, specular gloss, diffuse reflectance and image clarity;
I) any requirements for electric breakdown potential;
m) any requirements for the continuity of the anodic oxidation coating;
n) any requirements for the mass per unit area (surface density) of the coating.
Acceptable limits of variation of final surface finish as per d) above are identified preferably by agreed limit samples.ISO 7599 pdf download.
Tags: Anodizing of aluminium and its alloys
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