http://www.wilhelm-research.com/

http://www.wilhelm-research.com/book_toc.html

http://www.wilhelm-research.com/pdf/HW_Complete_Book_HiRes_v1.pdf
(the whole book 79+mb)


Ch.19 Frost-Free Refrigerators for Storing Color and Black-and-White Films
and Prints
Appendix 19.1: Freezer Storage for Permanent Preservation of Cellulose
Nitrate Still-Camera Negatives and Motion Pictures
http://www.wilhelm-research.com/pdf/HW_Book_19_of_20_HiRes_v1.pdf


Ch.20Large-Scale, Humidity-Controlled Cold Storage Facilities for the
Permanent Preservation of B&W and Color Films, Prints, and Motion Pictures
http://www.wilhelm-research.com/pdf/HW_Book_20_of_20_HiRes_v1.pdf


http://www.wilhelm-research.com/subzero.html

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