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114-0002
ad-strips packaging
ad-strips colour scale

A-D Strips Film Deterioration Monitors

A-D Strips are dye-coated paper strips that detect and measure the severity of acetate film deterioration, a.k.a. vinegar syndrome, in film collections.

When placed inside a closed can, bag, box or cabinet in the presence of acidic vapour given off by degrading film A-D Strips change colour to indicate the severity of the level of acidity.

Each kit contains; complete instructions, a reference pencil printed with four bands of colour that correspond to the level of acidity, as well as 250 detector strips (measuring 38 x 10mm).

Three types of plastic have been used in film manufacture:

  1. Nitrate was used from 1890 to 1950
  2. acetate from 1925 to the present
  3. polyester from 1960 to the present

A-D Strips are recommended for use only with acetate film. The film may be in any format: sheet film, roll film, cinema film, or microfilm.

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A-D Strips Film Deterioration Monitors
L114-0002 114-0002
Pack Size: Each Price: £56.00 ex VAT Due in Stock
Film Cores
Film Cores
From £1.30 ex VAT
Film Containers
Film Cans
From £2.80 ex VAT
Microfilm tags
Microfilm Reel Identification Tags
From £33.95 ex VAT
Microfilm storage cabinet
Microfilm Storage Cabinets
From £1,075.00 ex VAT
Film can labels
Film Can Labels for 16mm & 35mm
£99.95 ex VAT
pH Indicator Pen
pH Indicator Pen
£19.95 ex VAT
A-D Strip Level
Film Condition
Recommended Actions
0 Good—no deterioration Cool or cold storage
1 Fair to Good—deterioration starting Cold storage
Monitor closely
1.5 Rapid decay starting—point of autocatalytic decay Cold or frozen storage
2 Poor—actively degrading Freeze
Copying advisable
3 Critical—shrinkage and warping imminent, possible handling hazard Freeze immediately
Copy

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