possible for a person to squeeze the reel flanges during
handling even though a tape strap is properly in place, as
shown in figure 2-9. Handling tapes in this manner will
certainly result in tape-edge damage. In addition,
defective or improper size straps may deflect (twist or
warp) the reel flanges, causing tape-edge damage.
Nonetheless, when handled with care, the wrap-around
tape strap can bean effective method of tape protection.
regardless of how it is protected (by a canister or a tape
strap), always use good judgment and follow the
applicable safeguards, as follows:
When a tape is not actually being used, keep it
in its protective container to avoid accidental
breakage and unnecessary contamination.
Do NOT leave empty tape canisters open as
this allows entry of dust or other tape
Hang wrap-around straps in a clean area while
the tape is in use.
Whenever you return a tape to its respective
canister, you must ensure that a clean stopper is
NOTE: A stopper is a one-inch piece of foam
rubber the same width as the reel (inside the
flanges) and one-half-inch thick. Stoppers are
used to keep the tape from unraveling once
inside the canister.
Figure 2-9.Magnetic tape being held improperly-
the fingers should go through the hub hole without
squeezing the flanges.
Never use rubber stoppers with wrap-around straps.
The extra thickness could result in the tape being
embossed (leaving a permanent imprint).
While working with tapes in canisters, canisters may
be stacked for short periods of time.
NOTE: Avoid stacking more than 10 canisters,
since weight can cause the canisters on the bottom
Avoid stacking tapes with wrap-around tape straps,
because doing so can cause tape-edge damage.
Store magnetic tapes in a vertical position.
Always handle tape reels by the center hub, never
by the flanges.
NOTE: If you happen to drop a tape reel, check it
immediately for cracked flanges and the tape itself
for possible edge damage.
Periodically remove and check inside the flange and
hub areas of take-up reels on tape cleaning and
certifying equipment for dirt or other contamination.
Also check these reels (at the hub) periodically for
signs of warpage or cracks. Periodically check the
mounting hubs on your equipment to ensure they are
tight (secure). This prevents a reel of tape from
wobbling during a cleaning or certifying operation.
When you mount a tape on a device, always push in
on the hub itself, never on the outer flanges.
Never touch or handle the recording surface of the
Never place magnetic tape on top of equipment
because of the heat generated by the equipment and
because internal magnetic fields within the device
may scramble recorded bits of information on the
Smoking should not be allowed in working spaces
where magnetic tape is being used. Smoking is
never permitted while handling magnetic tape,
attending to tape units, or working in the library
area. Ashes may contaminate tapes, and live ashes
may cause permanent damage if they come in
contact with the tape.