TAED and sodium perborate are not contained within the detergent base powder.
They must be bought and stored separately and added to the wash test at time of testing.
TAED and sodium perborate are classed as unstable. If they were already added to the detergent, this would have a detrimental effect on the detergent, rendering it unusable.
Weighing these out at the time of testing ensures that they are added to the test in accurate amounts.
James Heal can supply TAED as a 250g container 706-735, or as a 500g container 706-433.
James Heal is unable to supply Sodium Perborate.
A PDF version of this FAQ is available for reference.