BS ISO 587:2020

What is ISO 587 about?  

ISO 587 specifies a method of determining the chlorine content of hard coal, brown coals and lignites, and coke using Eschka mixture. 

ISO 334 provides information on eschka mixture, volhard, and ISE methods which are used in determining chlorine content in coal and coke. 

Who is ISO 587 for?  

ISO 587 on coal and coke is beneficial for  

• Coal producer 
• Coal testing laboratory 

Why should you use ISO 587?  

Eschka mixture in an oxidizing atmosphere is used to remove combustible matter and to convert the chlorine to alkaline chlorides. These are extracted with nitric acid or water and determined by either the Volhard or the Mohr method, or by potentiometric titration using an Ion-Selective Electrode (ISE). 

ISO 587 provides information on the apparatus, preparation of the test sample, test procedure of eschka mixture, volhard method, ISE methods, mohr method, and test report. 

As a buyer of ISO 587, you can be ensured of the total chlorine content in coal and coke. ISO 587 helps the user in performing the eschka method, volhard, and ISE methods efficiently. ISO 587 assists the user in producing good-quality low-chlorine coal. 

What’s changed since the last update?  

BS ISO 587:2020 supersedes BS 1016‑106.6.1:1997, which is withdrawn 

The changes compared to the previous edition are as follows: 

• Updating of referenced documents 
• Adding of the provision of terms and definitions