BS ISO 1247-1:2021

What is ISO 1247-1 about?  

ISO 1247 discusses aluminium pigments for paints ISO 1247-1 is the first part of the ISO 1247 multi-series and discusses general aluminium pigments.  

ISO 1247-1 specifies the requirements and corresponding test methods for aluminium pigments suitable for use in paints including general, decorative, and protective paints, and special finishing paints. 

Who is ISO 1247-1 for? 

ISO 1247-1 on aluminium pigments for paints is useful for: 

• Paint Manufacturers 
• Quality control personnel 

Why should you use ISO 1247-1?  

Since the beginning of the new millennium, with the progress in technology and product development, there is a boom of new types of aluminium pigments which, serving as heat-resistant or rust-proof coatings or as colourants, find their ways into applications in a wide range of industrial sectors. ISO 1247-1 gives you tests related to general aluminium pigments produced in a milling process. To meet the needs in the marketing of aluminium pigments, characteristics such as “particle size distribution” and “hiding power”, as well as their corresponding testing methods, are introduced in ISO 1247-1. 

While the old methods are retained in ISO 1247-1, the flame atomic absorption spectrometric method is introduced as a new option for the determination of the above-mentioned metallic impurities. This method is faster, operation-friendly has a wider range of detection, and is gaining more and more popularity. 

To use as little toxic reagent as possible, ISO 1247-1 resort to using 2-Butoxyethanol or n-butyl acetate to replace acetone, which, as material likely to be used for making illegal drugs, is now forbidden, or restricted by many countries. 

What’s changed since the last update?  

BS ISO 1247-1:2021 cancels and replaces ISO 1247:1974. BS ISO 1247-1:2021 includes some technical changes with respect to ISO 1247:1974. These include: 

• Clause 3, terms, and definitions, has been added and the terms “non-volatile-matter” and “hiding power” have been included 
• A distinction between surface-treated and surface-untreated aluminium pigments has been introduced in Clause 4 and 5 
• The requirements and test methods of “pigment specific surface area”, “particle size distribution” and “hiding power” and the corresponding test methods have been added to Table 1 and Table 1 has been renamed “Requirements and test methods 
• The test method for “manganese” has been deleted from the metallic impurities 
• The flame atomic absorption spectrometric method has been introduced to determine metal impurities