Salvage at a Glance |
By Betty Walsh |
Material | Priority | Handling Precautions | Packing Method | Drying Method | |
Paper Documents & Manuscripts | |||||
Stable media | Freeze or dry within 48 hours. | Don't separate single sheets. | Interleave between folders and pack in milk crates or cartons. | Air, vacuum, or freeze dry. | |
Soluble inks (felt pens, colored pens, ball point pens) | Immediately freeze or dry. | Do not blot. | Interleave between folders and pack in milk crates or cartons. | Air or freeze dry. | |
Maps & Plans | |||||
Stable media | Freeze or dry within 48 hours. | Use extra caution if folded or rolled. | Pack in map drawers, bread trays, flat boxes, on heavy cardboard or poly covered plywood. | Air or freeze dry. | |
Soluble media Maps and plans by photoreproductive processes Hand colored maps | Immediately freeze or dry. | Do not blot. | Interleave between folders and pack as above. | Air or freeze dry. | |
Drafting linens | Immediately freeze or dry. | Avoid pressure - inks can smear away. | Pack like maps in containers lined with plastic. | Air or freeze dry. Air dry by separating sheets and interleaving. | |
Maps on coated papers | Immediately freeze or dry. | Pack like maps in containers lined with plastic. | Freeze drying preferred. | ||
Books | |||||
Books and pamphlets | Freeze or dry within 48 hours. | Do not open or close, do not separate covers. | Separate with freezer paper, pack spine down in milk crate or cardboard box 1 layer deep. | Air, vacuum, or freeze dry. | |
Leather and vellum bindings | Immediately dry; or freeze if many books. | Do not open or close, do not separate covers. | Separate with freezer paper, pack spine down in milk crate or cardboard box 1 layer deep. | Air dry. | |
Books and periodicals with coated papers | Immediately freeze or dry. | Do not open or close, do not separate covers. | Keep wet; pack spine down in containers lined with garbage bags. | Freeze drying preferred. Air dry by fanning pages and interleaving. | |
Parchment & Vellum Manuscripts | |||||
Immediately freeze or dry. | Interleave between folders. Pack oversize materials flat. | Air or freeze dry. Do not freeze dry gilded or illuminated manuscripts. | |||
Works of Art on Paper | |||||
Prints and drawings with stable media | Freeze or dry within 48 hours. | Don't separate single sheets. | Interleave between folders and pack in milk crates or cartons. | Air, vacuum, or freeze dry. | |
Oversize prints and drawings | Freeze or dry within 48 hours. | Use extra caution if folded or rolled. | Pack in map drawers, bread trays, flat boxes, on heavy cardboard or poly covered plywood. | Damp - air or freeze dry. Wet - freeze drying preferred. | |
Framed prints and drawings | Freeze or dry within 48 hours. | Handle with care - glass. | Unframe if possible, then pack as above. | Once unframed and unmatted, air or freeze dry. | |
Soluble Media Watercolors, soluble inks, and hand colored prints | Immediately freeze or dry. | Do not blot. | Interleave between folders and pack in milk crates or cartons. | Air or freeze dry. | |
Coated papers (e.g., posters) | Immediately freeze or dry. | Keep wet in containers lined with garbage bags. | Freeze drying preferred. Air dry by separating pages and interleaving. | ||
Paintings | |||||
Immediately dry. | Drain and carry horizontally. | Face up without touching paint layer | Air dry. See Instructions. | ||
Computer Media | |||||
Tapes | Immediately rinse off tapes soaked by dirty water. Dry within 48 hours if
paper boxes and labels; otherwise, tapes can stay wet for several days. Do not freeze. | Do not touch magnetic media with bare hands. Handle open reel tapes by hubs or reel. | Keep tapes wet in plastic bags. Pack vertically in plastic crate or tub. | Air dry or test vacuum drying without heat. | |
Floppy Disks | Immediately pack. Do not freeze. | Do not touch disk surface with bare hands. | Keep wet. Pack vertically in plastic bags or tubs of cold water. | Air dry. | |
Compact Discs & CD ROMs | |||||
Immediately dry discs. Dry paper enclosures within 48 hours. | Do not scratch the surface. | Pack vertically in crates or cardboard cartons. | Air dry. | ||
Sound and Video Recordings | |||||
Sound and Videotapes | Immediately rinse off tapes soaked by dirty water. Dry within 48 hours if paper boxes and labels; otherwise, tapes can stay wet for several days. Do not freeze. | Do not touch magnetic media with bare hands. | Keep tapes wet in plastic bags. Pack vertically in plastic crate or tub. | Air dry or test vacuum drying without heat. | |
Shellac and Acetate Discs | Immediately dry. Dry enclosures within 48 hours. | Discs are very fragile. Hold discs by their edges. Avoid shocks. | Pack vertically in ethafoam-padded crates. | Air dry, preferably with a record cleaning machine. | |
Vinyl Discs | Dry within 48 hours. Freezing is untested; if it is necessary, freeze at above -18° C (0° F). Freeze or dry enclosures within 48 hours. | Hold discs by their edges. Avoid shocks. | Pack vertically in ethafoam-padded crates. | Air dry, preferably with a record cleaning machine. | |
Black & White Prints | |||||
Albumen prints | Freeze or dry within 48 hours. | Do not touch binder with bare hands. | Interleave between groups of photographs. | Air dry; thaw and air dry. | |
Matte and glossy collodion prints | Freeze or dry within 48 hours. | Avoid abrasion. Do not touch binder with bare hands. | Air dry; thaw and air dry; or freeze dry. | ||
Silver gelatin printing out and developing out papers | Freeze or dry within 48 hours. | Do not touch emulsion with bare hands. | Keep wet. Pack in plastic bags inside boxes. | Order of preference: 1) Air dry, 2) thaw and air dry, 3) freeze dry. Do not vacuum dry. | |
Carbon prints and Woodburytypes | Immediately freeze or dry. | Handle carefully - swelling of binder. | Horizontally. | Air dry or thaw and air dry. | |
Photomechanical prints (e.g., collotypes, photogravures) Cyanotypes | Freeze or dry within 48 hours. | Do not separate single sheets. | Interleave every 2" and pack in boxes or crates. | Air dry or freeze dry. | |
Color Photographs | |||||
Dye transfer prints | Package to prevent damage - recovery rate is poor. Immediately dry. | Do not touch emulsion. | Transport horizontally. | Air dry face up. | |
Chromogenic prints and negatives | Freeze or dry within 48 hours. | Do not touch binder with bare hands. | Keep wet. Pack in plastic bags inside boxes. | Order of preference: 1) Air dry, 2) thaw and air dry, 3) freeze dry. Do not vacuum dry. | |
Cased Photographs | |||||
Ambrotypes Pannotypes | Recovery rate is low. Immediately dry. | Handle with care - glass supports and extremely fragile binder. | Horizontally in a padded container. | Air dry face up. Never freeze. | |
Daguerreotypes | Immediately dry. | Handle with care - fragile surface, cover glass. | Horizontally in a padded container. | Air dry face up. Never freeze. | |
Tintypes | Immediately dry. | Handle with care - fragile binder. | Horizontally. | Air dry. Never freeze. | |
Negatives | |||||
Wet collodion glass plates | Recovery rate is low. Immediately dry. | Handle with care - glass supports and fragile binder. | Horizontally in a padded container. | Air dry face up. Never freeze. | |
Gelatin dry plate glass negatives | Freeze or dry within 48 hours. | Handle with care - glass. | Keep wet. Pack in plastic bags, vertically in a padded container. | Air drying preferred; or thaw and air dry; freeze dry. | |
Deteriorated nitrates with soluble binders | Immediately freeze or dry. Recovery rate may be low. | Do not blot. | Horizontally. | Air dry; thaw and air dry; test freeze drying. | |
Deteriorated acetates | Immediately freeze or dry. Recovery rate is low. | Handle carefully - swelling of emulsion. | Horizontally. | Air dry; thaw and air dry; test freeze drying. | |
Polyester based film, nitrates and acetates in good condition | Freeze or dry within 48 hours. | Do not touch emulsion with bare hands. | Keep wet. Pack in small plastic bags inside boxes. | Order of preference: 1) Air dry, 2) thaw and air dry, 3) freeze dry. Do not vacuum dry. | |
Transparencies | |||||
Lantern slides, silver gelatin | Freeze or dry within 48 hours. | Handle with care - loose binding tapes and glass. | Vertically in a padded container. | Air drying preferred; thaw, and air dry. | |
Color Transparencies | |||||
Additive color transparencies (most are glass) Autochromes, Agfacolor, Dufaycolor | Package to prevent damage - recovery rate is very poor. Immediately dry. | Handle with care - loose binding tapes and glass. | Horizontally in a padded container. | Air dry. Never Freeze | |
Chromogenic color transparencies Mounted color slides and sheet films | Freeze or dry within 48 hours. | Handle by mounts or edges. | Keep wet. Pack in plastic bags inside box. | Order of preference: 1) Air dry in mounts if possible, 2) thaw and air dry, 3) freeze dry. Do not vacuum dry. | |
Motion Pictures | |||||
Rewash and dry within 48 hours. | Keep wet. Pack in plastic pails or cardboard cartons lined with garbage bags. | Arrange with a film processor to rewash and dry. | |||
Microforms | |||||
Microfilm rolls | Rewash and dry within 48 hours. | Do not remove from boxes; hold carton together with rubber bands. | Keep wet. Pack (in blocks of 5) in a cardboard box lined with garbage bags. | Arrange with a microfilm processor to rewash and dry. | |
Aperture cards | Freeze or dry within 48 hours. | Keep wet. Pack in plastic bags inside boxes. | Air dry, or thaw and air dry. | ||
Jacketed microfilm | Freeze or dry within 48 hours. | Keep wet. Pack in plastic bags inside pail or box. | Air dry, or freeze, thaw and air dry. | ||
Diazo and vesicular microfiche | Freeze or dry within 48 hours. | Interleave between envelopes and pack in milk crates or cartons. | Air dry, or freeze, thaw and air dry. |
© Province of British Columbia 1997. |
All rights reserved. Do not reproduce without permission from the author. |
Published as an insert to the WAAC Newsletter, Vol. 19, No. 2 (May 1997), Carolyn Tallent, Editor. |
This chart was written as a ready reference to the BCIMS disaster plan. Originally, the chart was modeled on a table of recovery priorities written by Julia Niebuhr Eulenberg, in Handbook for the Recovery of Water Damaged Business Records (Prairie Village, Kansas: ARMA, 1986), 47-48. |
In the interest of a quickly readable chart, other footnotes have not been included. The reader may consult with the text for more details on sources. |