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 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.
VACUUM ARC REMELTING
Any data gotten by measurement using a device with a continuos
scale between plus/minus infinity; data will form a bell-shaped curve.
( 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.
VOLATILE HAZARDOUS AIR POLLUTANTS
VAPOR HAZARD INDEX
VERY HIGH TEMPERATURE
VENDOR INFORMATION SYSTEM FOR INNOVATIVE TREATMENT TECHNOLOGIES
VOICE OF THE CUSTOMER; VOLATILE ORGANIC COMPOUNDS
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.
VOLATILE ORGANIC SAMPLING TRAIN
VERY SMALL QUANTITY GENERATORS