The waste from these tests are not categorized as a biohazard.
The British Government instructions for disposing of these uses tests are as follows:
‘If you’re doing a home rapid lateral flow test, you should dispose of the used rapid lateral flow kit in your waste bin at home or at work. Used test kit items could include the:
swab
test strip
sachet
extraction tube
Separate the used rapid lateral flow kit from any recyclable material and recycle it, if possible. Recyclable material could include the:
cardboard packaging
cardboard tube holder
paper instruction booklet
This is following advice from the British National Health Service.
Of course other countries have their own advice for the disposal of these used tests.