Advanced search

hpt question

(2 Posts)
user1468173727 Wed 31-Aug-16 15:00:03

Would a hpt (one step) give a result if it has been out of the foil wrapper for at least a week?

physicskate Wed 31-Aug-16 16:33:43

Don't think I would trust it... There is a lot of water vapour in the air that could have already been absorbed by the test...

Join the discussion

Join the discussion

Registering is free, easy, and means you can join in the discussion, get discounts, win prizes and lots more.

Register now