This Standard specifies the formaldehyde solution to be used as a reagent.
NOTE : The International Standard corresponding to this Standard is as follows.
ISO 6353-3 : 1987 Reagents for chemical analysis--Part 3: Specifica-
tions-Second series (MOD)
In addition, symbols which denote the degree of correspondence in the
contents between the relevant International Standard and ,]IS are IDT
(identical), MOD (modified), and NEQ (not equivalent) according to ISO/
IEC Guide 21.