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JIS H 8683-2:2013

JIS H 8683-2:2013

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Anodizing of aluminum and its alloys – Assessment of quality of sealed anodic oxidation coatings – Part 2: Measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution

Published By Publication Date Number of Pages
JIS 2013-05-20 14
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This Standard specifies the testing method of sealing by the chromic-phosphoric solution immersion test on anodic oxidation coatings (hereafter referred to as "coatings") applied to the products manufactured from aluminium and aluminium alloys (hereafter referred to as "products").

This Standard includes the following two testing methods.

– Method 1 : The method without prior acid treatment applicable to the coatings intended for decorative or protective purpose.

For less severe applications, this method may be suitable.

– Method 2 : The method with prior acid treatment applicable to the coatings intended for architectural purpose or the like.

These methods are not applicable to the following.

a) Hard-type coatings to which sealing treatment is not applied

b) Coatings sealed with dichromate

c) Chromic acid coatings

d) Coatings to which hydrophobic treatment is applied

NOTE 1 The methods are destructive and can serve as reference methods in case of doubt or dispute regarding the results of the test for loss of absorptive power (JIS H 8683-1) or the measurement of admittance (JIS H 8683-3).

NOTE 2 The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows:

ISO 3210 : 2010 Anodizing of aluminium and its alloys – Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution (MOD) The symbols which denote the degree of correspondence in the con-tents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/lEC Guide 21-1.

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JIS H 8683-2:2013
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