There is also this pdf file,
https://secure.fera.defra.gov.uk/beebase/searchResults.cfm
Sorry only a newbee,at least I managed to get a reply.
3). When doing this, make sure any remaining propolis boils and
that the timber darkens to a uniform coffee-brown colour,
indicating that the wood has been heated to a sufficient
temperature and for enough time to be properly sterilised. There
is no need to burn the timber, but do be especially thorough in the
corners.
Chemical sterilisation with disinfectants. Brood boxes and supers (and
other beekeeping equipment) can be effectively sterilised using
disinfectants containing hypochlorite. Sodium hypochlorite is
present at a concentration of about 3% in household bleach.
Research has shown that immersion for twenty minutes in a
solution of 0.5% sodium hypochlorite in water kills AFB spores and
other bacteria. In this case you therefore need to make a solution
of one part of household bleach to six parts of water (check the
label). It is essential that the spores are in contact with the
I think you'll find that NBU recommends that method of cleaning for plastic and polystyrene hives, not wooden ones.
The suggestion is that once they have been scraped clean wooden hives should be either carefully scorched, dipped in caustic soda or molten paraffin wax.
Check here :-
Second-hand equipment
https://secure.fera.defra.gov.uk/beebase/downloadDocument.cfm?id=168 and here :-
Disinfection
https://secure.fera.defra.gov.uk/beebase/downloadDocument.cfm?id=493 and here :-
Foulbrood Disease of the Honey Bees
https://secure.fera.defra.gov.uk/beebase/downloadDocument.cfm?id=7
