Permissible limits of exposure of chemical and
toxic substances . – (1) The
maximum permissible threshold limits of exposure
of chemical and toxic substances in manufacturing
processes (whether hazardous or otherwise) in
any factory shall be of the value indicated
in the Second Schedule.
(2) The Central Government
may, at any time, for the purpose of giving
effect to any scientific proof obtained from
specialised institutions or experts in the field,,
by notification in the Official Gazette, make
suitable changes in the said Schedule.