Tony
Chuter comments on his experience on using the C. P.
electronic pH meter as
mentioned on page 8.
Tony, as
many
of you will know,
builds his own pH meters and admits having doubts about this gadget, but having got a loan of the
one Rita Pearle received
from C P, he is pleased to
show otherwise in these comments:-
“Do
you feel that you will never be the complete photographer unless you own a
pH meter? There are those amongst us who swear. By them, on the other
handsome eschew their use and wouldn’t dream of using one, and there are
many who would like to
have one, but the
price puts it out of each.. Whatever your persuasion, the fact
remains that you can never
be absolutely sure that you are working to the correct pH if you don’t
use one.
Fortunately,
the main barrier to none-ownership - price - has, largely been removed
with the introduction of the minature rneter described in the foregoing
report but Rita Pearle. I use a standard meter myself and I must confess to a
degree of scepticism when I, was tolled that there was now a minature
digital read-out meter on. the market, robust, accurate and small enough
to fit (with a clip to hold it) into a jacket pocket’
Soon after I
had heard about It. I obtained one and
the tests that I carried out at~ home, confirmed to me, that this -
for us - is a viable alternative to the accepted laboratory-type meter
that’s in general use and very much cheaper. The cost is no more, than a
roll (thirty meters) of film, and this could even be less if we take
advantage of the bulk-purchase discount if you support us!
Apart
from my own trials I was able to show the meter to the Committee when we
met at Worcester for our
annual pre-AGM meeting. Our technical Officer, Brian Savage, is in charge
of the Pathology Department. at the Ronkswood Hospital there, and through
his good offices we are able to meet at this central venue. Brian produced
three laboratory-grade liquids of pH4-pH7 and pH9 together with distilled
water to wash the probe between, changes. In each case the meter
registered within the 0.l degree of accuracy that the makers claim for it
Several of the
Committee members already own a pH meter and those that do not, said that
they were certainly interested In obtaining one. What better
recommendation do you need?
(With thanks
to Oliver Barron who first brought this pH meter to our notice and to
Margary Meadows and Rita and Major Pearle for following it through ) As
mentioned YOUR Area Leader will have an advert giving full details of’
the meter which you can request for your interest and perhaps take
advantage of the offer.
Ed.