What is BS EN 1406 - Chemicals used for treatment of water intended for human consumption – Modified starches about?
BS EN 1406 is applicable to modified starches used for the treatment of water intended for human consumption.
BS EN 1406 describes the characteristics of modified starches and specifies the requirements and the corresponding test methods for modified starches.
Who is BS EN 1406 - Chemicals used for treatment of water intended for human consumption – Modified starches for?
BS EN 1406 on chemicals used for the treatment of water intended for human consumption – Modified starches is useful for:
- Water treatment plant   
- Chemical laboratories  
- Chemical industries  
- Health and safety bodies  
- Regulatory authorities 
- Manufacturers and suppliers of modified starches
Why should you use BS EN 1406 - Chemicals used for treatment of water intended for human consumption – Modified starches?
Modified starches can be manufactured from various raw materials such as potato, maize, wheat, barley, tapioca. BS EN 1406 specifics modified starches that are white to pale yellow solid available as granules, flakes or powder or white to yellowish viscous aqueous solutions. Solid form starches contain a small amount of residual moisture.
BS EN 1406 will benefit you:
- To clarify whether starch is of appropriate purity for treatment of water intended for human consumption
- To facilitate the removal of colloidal and fine suspended particles. They are effective when used in conjunction with metal salts in the removal of turbidity and colour
- To allow a delay time between the addition of metal salt coagulant and the product in order to minimize the dosage requirement of the latter
Also, BS EN 1406 will help you with the manufacturing process i.e., non-ionic starch, cationic starch and anionic starch that is used for the treatment of water intended for human consumption.
What’s changed since the last update?
BS EN 1406:2017 supersedes BS EN 1406:2009, which is withdrawn.
The significant technical difference between BS EN 1406:2017 and EN 1406:2009 is a wider possible degree of substitution. The main modifications are as follows:
- Subclause 3.1.4 empirical formulae
- Subclause 3.1.5 chemical formulae
- Subclause 3.3.2 density
- Subclause 3.3.3 solubility
- Subclause 4.2 composition of commercial product
- Subclause A.1.2 manufacturing process
- Subclause A.2.2 form in which it is used
- Annex A is informative and gives some information on the origin, use and handling of modified starches
