RA
REMEDIAL ACTION

RAC
RESPONSE ACTION CONTRACTOR

RACK
The coated frame for holding parts and carrying current during plating and other related processes.

RACT
REASONABLY AVAILABLE CONTROL TECHNOLOGY

RAGS
RISK ASSESSMENT GUIDANCE FOR SUPERFUND&127;

RC
RESPONSIBLE CARE

RCRA
RESOURCE CONSERVATION AND RECOVERY ACT

RD
REMEDIAL DESIGN

RD&D
RESEARCH  DEVELOPMENT  AND DEMONSTRATION

RDR
RISK-DRIVEN REMEDIATION

REA
REGISTERED ENVIRONMENTAL ASSESSOR

RECOVERY
The actions taken by an organization  particularly its frontline employees
in response to unexpected customer  problems.

RECTIFIER
The electrical power source that supplies current to the tank anode
and cathode bars or saddles.

REDUCTION
The chemical reaction which takes place at the cathode, in which metal is deposited or reduced.

REL
RECOMMENDED EXPOSURE LIMIT

RELIABILITY
The probability that an item will perform its intended function for a specific interval.

RELIABILITY ENGINEERING
A broad-based discipline for ensuring better product performance by
predicting more accurately when and under   what conditions a product can fail.
Based on the results of such an analysis, engineers can improve designs, set
operating limits for equipment, and create backups in case of system failure.
Reliability programs also incorporate  feedback loops for analyzing product
performance in the field and, in particular, product failures.

RELT
REGISTERED ENVIRONMENTAL TECHNOLOGIST

REM
RARE EARTH METALS; REGISTERED ENVIRONMENTAL  MANAGER

REP
REGISTERED ENVIRONMENTAL PROFESSIONAL

REPA
REGISTERED ENVIRONMENTAL PROPERTY ASSESSOR

REPRESENTATIVENESS
A quantitative statement as to how well the data define the desired environmental circumstance.

RF
RADIO FREQUENCY

RFA
RCRA FACILITY ASSESSMENT

RFI
RCRA FACILITY INVESTIGATION; RADIO FREQUENCY  INTERFERENCE; RESIN FILM INFUSION

RFP
REQUEST FOR PROPOSAL

RFQ
REQUEST FOR QUOTE

RHSP
REGISTERED HAZARDOUS SUBSTANCES PROFESSIONAL

RI/FS
REMEDIAL INVESTIGATION AND FEASIBILITY STUDY

RIM
REACTION INJECTION MOLDED

RIPPLE AC
The residual AC current pulsating with converted DC current from a rectifier.

RMP
RISK MANAGEMENT PLAN

ROCHELLE SALT
The common name for sodium potassium tartrate.

ROD
RECORD OF DECISION

ROG
REACTIVE ORGANIC GASES

ROI
RETURN ON INVESTMENT

ROOT CAUSE (CAUSE-AND-EFFECT) ANALYSIS
A deductive approach to analyzing problems by working backwards from the
'effect' to the cause or causes.  One of the so-called 'SEVEN QUALITY TOOLS,'
root-cause analysis is often facilitated using a 'FISHBONE DIAGRAM'  in which all
the inputs to the process are arrayed in visual format like the bones of a fish.

ROS
RENEWABLE OXYGEN STANDARD

RPF
RIGID PLASTIC FOAM

RQ
REPORTABLE QUANTITIES

RREL
RISK REDUCTION ENGINEERING LABORATORY

RRT
REGIONAL RESPONSE TEAMS

RSP
RAPID SOLIDIFICATION PROCESSING

RSPA
RESEARCH AND SPECIAL PROGRAMS ADMINISTRATION&127;

RTECS
REGISTRY OF TOXIC EFFECTS OF CHEMICAL  SUBSTANCES

RTK
RIGHT TO KNOW

RTO
REGENERATIVE THERMAL OXIDATION

RTP
REINFORCED THERMOSETTING PLASTICS

RTPC
REAL-TIME PROCESS CONTROL

RVC
RETICULATED VITREOUS CARBON