What is BS EN 12485 - Chemicals used for treatment of water intended for human consumption about?
BS EN 12485 focuses on chemicals used for treatment of water intended for human consumption.
BS EN 12485 specifies the methods used for the chemical analyses and the determination of physical properties of calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime used to treat water for human consumption.
BS EN 12485 specifies the reference methods and, in certain cases, an alternative method which can be considered to be equivalent.
Note:
Any other methods may be used provided they are calibrated, either against the reference methods or against internationally accepted reference materials, in order to demonstrate their equivalence.
Who is BS EN 12485 - Chemicals used for treatment of water intended for human consumption for?
BS EN 12485 on test methods of chemical used for treatment of water is useful for:
- Water treatment plant  
- Chemical laboratories 
- Chemical industries 
- Health and safety bodies
- Regulatory authorities
Why should you use BS EN 12485 - Chemicals used for treatment of water intended for human consumption?
BS EN 12485 provide you with:
- General requirements
- Determination of screen oversize of high-calcium lime
- Preparation of test solutions
- Conventional methods of determining major and minor constituents
- Determination of constituents by modern techniques
- Determination of chemical parameters
Adapting BS EN 12485 will help to analyze half-burnt dolomite, calcium carbonate, high calcium lime, magnesium oxide, calcium magnesium carbonate and dolomitic lime.
What’s changed since the last update?
BS EN 12485:2017 supersedes EN 12485:2010 which is withdrawn.
Significant technical differences between BS EN 12485:2017 and EN 12485:2010 are as follows:
- Addition of test procedures for dolomitic lime (see 3.2)
- The description for air-jet sieving was revised (see 4.1)
- Update of abbreviations to be in accordance with iso 80000-9 quantities and units – part 9: physical chemistry and molecular physics
