BS EN 1406:2017 Chemicals used for treatment of water intended for human consumption. Modified starches

Water purification
Storage
Transportation
Impurities
Chemical properties
Starches
Water treatment
Physical properties of materials
Potable water
Safety measures
Purity
Marking
Chemical composition
Chemical analysis and testing

Link: BS EN 1406:2017 Chemicals used for treatment of water intended for human consumption. Modified starches
Source: BSI Standards