BS EN ISO 787-9:2019

What is ISO 787-9-Pigments and extenders about?  

ISO 787 discusses pigments and extenders. ISO 787-9 is the ninth part of the ISO 787 multi-series and discusses the determination of the pH value of an aqueous suspension. 

ISO 787-9 specifies a general method of test for determining the pH value of an aqueous suspension of a sample of pigment or extender. 

Who is ISO 787-9-Pigments and extenders for? 

ISO 787-9 on pigments and extenders is useful for  

• Paint manufacturers  
• Quality control personnel

Why should you use ISO 787-9-Pigments and extenders for? 

An extender pigment is a naturally occurring chemical substance (usually having a white color) that is added to paint or coating to improve its properties such as durability, cost, and resistance to corrosion or wear. ISO 787-9 provides you with a test to determine the pH value of an aqueous suspension of a sample of pigment or extender. 

ISO 787-9 also guides you with sampling, test procedures, and test reports. ISO 787-9 helps you to improve the quality of your paints and their properties such as durability, cost, and resistance to corrosion or wear.  

What’s changed since the last update? 

BS EN ISO 787-9:2019 supersedes BS EN ISO 787-9:1995, which is withdrawn. BS EN ISO 787-9:2019 includes some technical changes with respect to BS EN ISO 787-9:1995. These include: 

• The preparation of the glass container has been changed 
• The duplicate determination has been changed to a single determination 
• In addition to ethanol, methanol has been added as an alternative wetting agent