DAF
DILUTION ATTENUATION FACTOR

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