FIELD: analyzing non-biological materials by the use of the chemical methods specified in the subgroups. SUBSTANCE: method involves the steps of: placing a sample of carbamodiformaldehyde binder in a perforator, curing it at heating, and carrying out analysis of aqueous solution of formaldehyde solution by perforation technique. EFFECT: enhanced reliability. 1 tbl
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Authors
Dates
1995-02-09—Published
1991-03-28—Filed