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.

Read More
A-D Strips Film Deterioration Monitors
L114-0002 114-0002
Pack Size: Each Price: £56.00 ex VAT In Stock
From £1.30 ex VAT
From £2.80 ex VAT
From £1,580.00 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

We use cookies for essential functions and optimisation of this website. Please see our Privacy Policy for more information. Click to ‘OK’, or continue browsing to accept all cookies.