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Hanging your software up to dry

By Nancy B. Olson Professor, Memorial Library Mankato State University

What to do when the roof leaks on your software collection.

In the early morning of June 19,1986, a pipe burst in the ceiling somewhere above the technical ser vices area of Memorial Library, Mankato State University in Mankato, Minnesota. By the time the leak was discovered and a janitorial crew called in, the water was several inches deep in the acquisi tions area, and dripping down the stacks of Na- tional Union Catalogs in the cataloging area.

It was not until librarians reported to work that it was discovered water had also come through the ceiling onto trucks of audiovisual materials, in- cluding a complete run of the microcomputer soft ware serial, SoftDisk.

The acquisitions area was vacuumed dry.

The wet volumes of the National Union Catalog were sent to be freeze-dried in the usual manner.

The audiovisual items were opened and spread out on shelves and tables for drying. All film and magnetic tape materials were opened and loosened so moisture would not cause layers of film or tape to stick together.

Records were removed from jackets and liners and carefully wiped dry. Study prints were propped against shelves. Posters were laid flat, face up, to dry. Fans were brought from homes to circu- late air throughout the area, and all materials dried quite well, though much of the packaging had to be replaced. Many of the paper items were wrinkled or warped, but they were still usable.

The microcomputer software seemed hopeless. The cataloging of this software had been finished the previous day, and the 55 issues of SoftDisk, most with two disks per issue, were standing almost upright in cardboard boxes, waiting to be labeled with call number and issue number.

Figure 1. Rosie Nock, library technician, dries a disk with a hair dryer.

Figure 2. A disk is removed from its plastic sleeve. Note moisture on disk and in lining of sleeve.

Because these disks were loose, in open boxes, water falling onto them from above was directed into the plastic sleeves which enclose the disks themselves. The water could not drain away, as it was held around the disk by the plasticized jacket in which each enclosed disk is slipped when not in use.

Water poured from many of the disks when they were removed from their jackets. It spurted from the plastic sleeve openings when the sleeves were squeezed. It dripped onto the table as we checked disk after disk, hoping to find some that had been spared from the disaster. There were no dry disks.

We assumed these would be a total loss. How ever, Dr. Edmund Colby, coordinator of our Edu cational Resource Center, decided to experiment.

Disks are permanently encased in plastic sleeves, with a cloth-type lining that is impregnated with a silicone lubricant. This lining holds moisture. For those disks only slightly wet (no water spurted out when the disk was squeezed) a hair dryer with an “air" setting (no heat) was used to thoroughly dry the sleeve lining (see Figure 1). The disk sleeve was held slightly away from the disk and air was di rected into the sleeve, being careful to dry both sides of the disk, both sides of the sleeve lining, and all corners. These disks were then copied successfully.

Figure 3. The software tree.

The dripping wet disks were peeled out of their plastic sleeves (see Figure 2). The plastic sleeves of some were relatively easy to pop open. Others were more difficult, and a paper cutter was used, first making sure to tap the sleeve to position the disk away from the edge being cut.

Each disk was then wiped dry with a rag! The janitor closet yielded a box of clean, soft, lint-free rags (from old thermal underwear). The waffleweave cloth shown in Figure 2 dried well and did not leave lint on the disks.

The disks were then hung for further air drying on the cataloging department “Easter egg tree” (Figure 3). This procedure kept the disks from touching each other, and also kept the disk surfaces from coming into contact with any other material or contaminants.

A new dry disk was then cut open by trimming off about 1/16 inch of the write-protect edge with a paper cutter. The disk was removed from the plastic cover and set aside for later replacement. One by one the bare disks were slipped into this dry cover, run, and copied. All disks copied successfully, and everything—including the entire microsoftware serial—was salvaged. ■ ■

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