<p>ISO 3210:2010 specifies methods of assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution.</p>
<p>ISO 3210:2010 consists of the following two methods.</p>
<ul>
<li>Method 1: assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution, without prior acid treatment.</li>
<li>Method 2: assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution<b> </b>with prior acid treatment<b>.</b></li>
</ul>
<p>Method 1 is applicable to anodic oxidation coatings intended for decorative or protective purposes or where resistance to staining is important.</p>
<p>Method 2 is applicable to anodic oxidation coatings intended for architectural purposes. For less severe applications, Method 1 may be more suitable.</p>
<p>The methods are not applicable to the following:</p>
<ul>
<li>hard-type anodic oxidation coatings which normally are not sealed;</li>
<li>anodic oxidation coatings that have been sealed only in dichromate solutions;</li>
<li>anodic oxidation coatings produced in chromic acid solutions;</li>
<li>anodic oxidation coatings that have undergone a treatment to render them hydrophobic.</li>
</ul>
Registration number (WIID)
51489
Scope
<p>ISO 3210:2010 specifies methods of assessing the quality of sealed anodic oxidation coatings on aluminium and its alloys by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution.</p>
<p>ISO 3210:2010 consists of the following two methods.</p>
<ul>
<li>Method 1: assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution, without prior acid treatment.</li>
<li>Method 2: assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in phosphoric acid/chromic acid solution<b> </b>with prior acid treatment<b>.</b></li>
</ul>
<p>Method 1 is applicable to anodic oxidation coatings intended for decorative or protective purposes or where resistance to staining is important.</p>
<p>Method 2 is applicable to anodic oxidation coatings intended for architectural purposes. For less severe applications, Method 1 may be more suitable.</p>
<p>The methods are not applicable to the following:</p>
<ul>
<li>hard-type anodic oxidation coatings which normally are not sealed;</li>
<li>anodic oxidation coatings that have been sealed only in dichromate solutions;</li>
<li>anodic oxidation coatings produced in chromic acid solutions;</li>
<li>anodic oxidation coatings that have undergone a treatment to render them hydrophobic.</li>
</ul>
