DAF
DARPA
DEFENSE ADVANCED RESEARCH PROJECTS AGENCY
DB
DIFFUSION BONDING
DC
DIRECT CURRENT
DCS
DISTRIBUTED CONTROL SYSTEM
DCU
DISTRIBUTED CONTROL UNITS
DE
DIATOMACEOUS EARTH
DEFECT
Any departure of a characteristic from its intended level.
DEGREES OF FREEDOM
The number of unconstrained parameters in a statistical determination.
DEGREASING
The process of removing grease, oils and other coatings from the part. It can be a
chemical or electro-chemical process.
DEFLOCCULATION
The process of breaking up soils into finely divided particles and suspending them in the
cleaner.
DENSITY
The weight of solid or metal per unit volume. It is expressed in grams per cubic
centimeter (g/cc) or ounce per cubic inch.
DeSRT
DEVELOPMENT AND DEMONSTRATION OF SITE REMEDIATION TECHNOLOGY
DEVIATION
Written authorization to depart from specifications
DFM
DESIGN FOR MANUFACTURABILITY
DFR
DESIGN FOR RECYCLING
DHS
DEPARTMENT OF HEALTH SERVICES
DIRECT CURRENT (DC)
Electrical current in which electrons flow in a single direction, is used for plating and
other metal finishing processes
DMR
DISCHARGE MONITORING REPORT
DOC
DEPARTMENT OF COMMERCE; DISTRIBUTED OPERATOR CONSOLES
DOD
DEPARTMENT OF DEFENSE
DOE
DEPARTMENT OF ENERGY
DOJ
DEPARTMENT OF JUSTICE
DOM
DRAWN OVER MANDREL
DOT
DEPARTMENT OF TRANSPORTATION
DOUBLE NICKEL SALT
Nickel ammonium sulfate.
DPC
DESIGN PROFESSIONALS COALITION
DQO
DATA QUALITY OBJECTIVES
DR
DEPOSITION RATE
DRAG-IN
The contaminants brought into a bath from a previous bath because of
solution adhering to the load.
DRAG-OUT
First rinse after the finish or plating bath; sometimes called the
'dead rinse' because water is not
allowed to flow into other tanks.
DRE
DESTRUCTION AND REMOVAL EFFICIENCY
DRY MEASURE
2 PINTS = 1 QUART 8 QUARTS = 1 PECK 4
PECKS = 1 BUSHEL
DSE
DOMESTIC SEWAGE EXCLUSION
DSL
DOMESTIC SUBSTANCES LIST
DTI
DEPARTMENT OF TRADE AND INDUSTRY
DUMMY CATHODE
A large cathode is used to plate out metallic impurities or excess additives in the bath.
Corrugated surface is use to
accentuate high and low current effects to selectively remove these contaminants.
DUMMYING
The process of removing excess additives or metallic impurities from the bath, using very
low current density.
DWTF
DECONTAMINATION AND WASTE TREATMENT FACILITY