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ULC-S328-98 (R2016)
Standard for Burglary Resistant Key Locks
1. SCOPe
1.1 These requirements cover mechanical key locks categorized as follows:
A Cabinet locking cylinder;
B Door locks;
C Locking cylinders;
D Security container key locks utilizing Type 1 and Type 2 locks; and
E Two-key locks.
1.2 At the manufacturer's option, a suffix 'C' may be used to denote a key
lock which has been tested using carbide or carbide tip drill bits. A suffix
'V' may be used to denote a type of key lock which has been tested using
electrically operated vibrating needles as available from locksmith supply
sources.