Buffer (reagent) solutions:
Buffer solutions are equilibrium sys-
tems containing substances which, within limits, neutralize added
acids or bases.
This is a graduated tube for measuring liquid vol-
umes or granular substances.
To determine the corrections to be made in the readings
of instruments or test equipment used in precise measurements.
sists of the comparison of two instruments, one of which is a certified
standard of known accuracy, to detect and adjust any discrepancy in
the accuracy of the instrument being compared with the certified
To produce agglomeration of suspended solids in water
in order to induce faster settling or more efficient fltration thru
addition of such chemicals as Ferric Chloride, Alum or Polyelectrolytes.
That instance at which an anticipated chemical change
or reaction takes place because of a change in conditions or because
of the addition of chemical solutions.
Surface water which filters thru the upper layers of
earth to collect at a lower layer.
Commonly collected from a shallow
well, using a pump.
A Chemical Solution added to water which changes color
to indcate a change in the condition of the water, e.g. during a
To determine serviceability of an item by comparing the
physical, mechanical, and electrical characteristics with established
Interferences: When testing for a particular element, another ele-
ment or compound present in the sample will cause an error in the
Relating to, or being, the glands that pro-
A curvature in a liquid top level in a measuring tube
caused by an affinity to the tube material by the liquid.
Usually simple life forms which multiply under
favorable environmental conditions when the water is not sterile.
Examples lichens, moss, grass.
A solid which forms when a substance held in solution
passes out of solution into a solid form.
Any water convenient to troops in the field being con-
sidered for their use.
Its source may be a lake, stream, well, cis-
tern or other.