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51
Fencing of Machinery was of only a fair standard on the whole,
but there were notable exceptions either way. Some firms had the
most up-to-date method of fencing and safety devices, whereas others
had the minimum.
Noise
Most factories experienced a tolerable amount of noise. The
noisiest however were not so serious as to render a permanent injury
to the hearing mechanism. Noises of over 100 decibels were not
encountered and it is above this intensity that trouble may arise.
Weight Lifting
No instance of over weight lifting was recorded. Experience
in the artof weight lifting and use of mechanical devices prevented
this hazard.
Exposure to Weather
This aspect was well taken care of by the employees and the
managements. All workers out of doors were suitably clad.
However, certain workers in an electrical firm were exposed
to overheating and this in turn cause sweating and consequent
dehydration and loss of salt from the body. In this respect
(special fruit flavoured) saline drinks are necessary to maintain
the body fluid balance. We were able to advise the names of
manufacturers of such drinks.
Toxicological Hazards
Dusts
Harmful dusts were not encountered in any great quantity.
(a) Siliceous particles arose from fettling and sanding
machines which had dust extractors at source. No person working
in such occupations was reported as suffering as a result and
x rays of chest were likewise reported as clear. In respect of
these particles, those which are not seen cause the damage. It
is estimated that particle size less than 5 Microns (5 thousanths
of a millimetre) may cause trouble deep in the lungs.
Talc powder was not shown to cause trouble. X rays of chest