There are no specific degaussing standards however several government security agencies, for example America’s NSA and the UK’s NCSC evaluate degausser performance against their own internal limits.
There are three main data sanitization techniques for the hard drive storage device. There is the physical destruction of hard drive where the drives are crushed or platters damaged to an inoperable state. The degaussing of a hard drive removes all data through the use of a powerful magnetic field. The third technique is overwriting of data contained on the hard drive.
(All VS Security Products degaussers are designed to help you comply with these mandates and are regularly used by financial institutions, IT departments, E-recyclers and corporate organizations.)
You need to establish how many hard drives/backup tapes you need to erase per day/month. Then choose a degausser that has a suitable throughput and the security level you require.
Degaussers will erase all the data whereas hard drive destroyers usually bend the platters so they cannot be read by the drive heads. We suggest you can use degausser first and use destroyer after degaussing.
