The preferred method will be to get it tested by HPAC, which can often be arranged through your local paintball site or at an event they attend
(Save money by handing it over in person without the additional cost of postage, plus the additional hassle of finding a 'carriage of hazardous goods' compliant postage method)
Local diving shops can either test or arrange a test for you. If you check the IDEST website you can cut out the middle man and see who can conduct the tests themselves
HPAC - Armourlite Ltd -
Unit 5 Old Dominion Estate, Withy Road, Bilston, West Midlands, WV14 0RX
Tel:-
01902 494988 Mob:-
07980 867110
Email:-
trevor.kent@btconnect.com
https://www.sita.org.uk/idest/idest_members.php