VALENCE
The numerical combining power of a given atom or radical with other atom. For example, the
valence of nickel is +2.
It can be combined with one sulfate ion (valence,-2). Some metals have multiple valences,
such as copper, which
can have a valence of +l or +2.
VALID REQUIREMENTS
Valid Requirements are standards of quality work agreed upon by customers
and suppliers. Valid requirements must be: CURRENT
REALISTIC MEASURABLE
MEET CUSTOMER NEEDS AND REASONABLE EXPECTATIONS and
MEET CORPORATE RESPONSIBILITIES.
VAR
VACUUM ARC REMELTING
VARIABLES (1)
Any data gotten by measurement using a device with a continuos
scale between plus/minus infinity; data will form a
bell-shaped curve.
VARIABLES (2)
( As in 'key process VARIABLES' ); the prime factors in a
production
system which impart a given product characteristic;
( like CURRENT TIME AREA and BATH which control
plating quality).
VARIABLES CONTROLS CHART
There are two types of VARIABLES CONTROLS CHART:
_ X R CHART and X MOVING RANGE CHART.
VHAP
VOLATILE HAZARDOUS AIR POLLUTANTS
VHI
VAPOR HAZARD INDEX
VHT
VERY HIGH TEMPERATURE
VISITT
VENDOR INFORMATION SYSTEM FOR INNOVATIVE TREATMENT TECHNOLOGIES
VOC
VOICE OF THE CUSTOMER; VOLATILE ORGANIC COMPOUNDS
VOLUMETRIC
Wetlab' test by which the chemical CONCENTRATION can be measured by
adding standard solutions reagents or
indicators to a known volume of sample BATH;
an amount added translates directly to CONCENTRATION.
VOST
VOLATILE ORGANIC SAMPLING TRAIN
VP
VAPOR PRESSURE
VSQG
VERY SMALL QUANTITY GENERATORS