p CHART
This is only a one-part Control Chart which charts the progress that generates attribute data.
It is applicable to problems  which deal with the percentage that do not conform to specifications.
EXAMPLE:  Percentage of jobs reworked per month.

P&ID
PIPING AND INSTRUMENT DIAGRAMS; PROCESS AND  INSTRUMENT DIAGRAM

P/F
POWDER FORGED

P/M
POWDER METALLURGY

P4
POLLUTION PREVENTION PLEDGE PROGRAM

PAI
PROCESS ANALYTICAL INSTRUMENTS

PARCOM
PARIS CONVENTION FOR THE PREVENTION OF MARINE  POLLUTION

PARETO
(Vilfredo);  Italian economist dubbed 'Father Of Modern Fascism' for his views on elitist ruling classes;
( also see  '80:20 Rule' ).

PARETO ANALYSIS
A system of analysis based on the principle that, in any phenomenon, relatively few factors
account for the   majority of effects.  Juran uses the phrase 'vital few' to suggest that it is
more efficient and less costly to  concentrate on the most important sources or types of failures,
customers and so on.

PARETO CHART
1.)  Pareto analysis is a way of organizing data to show what major factor(s) make up the subject
being analyzed.  It is a search for significance.  2.)  A Pareto Chart is a type of chart in which the
bars are arranged, in descending order, from the left.  3.)  The basis for Pareto analysis is the '80:20: rule.
For instance, 80% of the problems result from 20% of the   cause.

PASSIVITY
The condition of metal such that it assumes a potential more noble than its standard potential.
Plating onto a passive surface results in poor adhesion.

PBR
PERMIT BY RULE

PCB
POLYCHLORINATED BIPHENYLS; PRINTED CIRCUIT  BOARD

PCE
PERCHLOROETHYLENE

PCI
POWDER COATING INSTITUTE

PDES
PRODUCT DATA  EXCHANGES

PE
PROFESSIONAL ENGINEER

PEL
PERMISSIBLE EXPOSURE LIMITS

PEELING
The detachment of a deposit from the basis metal or from the preceding deposit.

PEPTIZING VALUE
The ability of a sequestering agent to hold suspended particles in a bath and form a colloidal dispersion.

PER
POLLUTION EMISSIONS REGISTER

PERMUTATION
A counting technique that requires the ordered arrangement of a set of objects.

PERT
PROGRAM EVALUATION AND REVIEW TECHNIQUE

PFC
PERFLUOROCARBON

PFTE
POLYTETRA FLUOROETHYLENE

PG
PROFESSIONAL GEOLOGIST

PH
PROFESSIONAL HYDROLOGIST

pH
A scale for defining the acidity or alkalinity of a bath;  the more hydrogen
(H+) ions  the lower the pH;  the more  hydroxide (OH-) ions  the higher the pH;
than 5 or less =  ACID  9 or more = AKALINE  6 to 8 = NEUTRAL.

PHA
PROCESS HAZARD ANALYSIS

PHOSPHATE
Metal phosphate in phosphoric acid will lightly pickle base metal  causing the zinc
phosphate and base metal  to combine  forming a gray film.

PHR
PROCESS HAZARDS REVIEW

PIC
PRIOR INFORMED CONSENT

PICKING
The removal of oxides, heat scale or other compounds from a part by immersion in acid dip or by electrolysis.

PIE CHART
A pie chart is a graphic representation which compares the relative magnitudes
or frequencies of things.  Useful  for more than one level of stratification: all on one
graph, equivalent to several bar charts.  Shows relative proportion of  each category to the whole.

PIES
POLLUTION PREVENTION INFORMATION EXCHANGE  SYSTEM

PIM
POWDER INJECTION MOLDING

PIN
PRODUCT IDENTIFICATION NUMBER

PIN HOLE BLEEDING
Bleeding of trapped chemicals from porous deposit or coating (not necessarily related to chemical attack of the part).

PIT
The depression produced in the deposit by non-uniform electrodeposition or defects on the part.

PLC
PROGRAMMED LOGIC CONTROLLERS

PLL
POLLUTION LEGAL LIABILITY

PM
PARTICULATE MATTER; POWDER METALLURGY

PMA
PRECISION METALFORMING ASSOCIATION

PMB
PLASTIC MEDIA BLASTING

PMC
POLYMER MATRIX COMPOSITES

PME
PACIFIC MATERIALS EXCHANGE

PMIF
POWDER METAL INDUSTRIES FEDERATION

PMN
PREMANUFACTURE NOTICE

POD
POUNDS-OUT-THE-DOOR

POLARIZATION
The change in electrode potential during electrolysis, such that potential of the anode becomes nobler,
and the applied current continuously drops.

POPS
PERFORMANCE-ORIENTED PACKING STANDARDS

POPULATION
The total set of observations being considered in a statistical procedure.

PORE
A tiny cavity or channel extending completely or partly through the deposit to the basis metal.

POROSITY
The presence of tiny pores of meniscus cavities in the deposit.

POTW
PUBLICLY OWNED TREATMENT WORKS

PP
POLYPROPYLENE

PPA
POLLUTION PREVENTION ACT

PPB
PARTS PER BILLION

PPE
PERSONAL PROTECTIVE EQUIPMENT

PPIC
POLLUTION PREVENTION INFORMATION  CLEARINGHOUSE

PPM
PARTS PER MILLION

PPO
POLLUTION PREVENTION OFFICE

PPP
POLLUTION PREVENTION PLAN

PPS
POLYPHENYLENE SULFIDE

PPT
PARTS PER TRILLION

PQL
PRACTICAL QUANTIFICATION LIMIT

PRECISION
The degree to which the results of a series of repeated measurements on the same item are in agreement.

PRE-PLATING
Those steps which the base metal must undergo before plating  including STRIKE
ZINCATE   or FLASH to  make the raw base metal active and plateable.

PREPARATION
Those steps which base metals must undergo  before plating;  included can be
PRE-CLEANING  CLEANING and PRE-PLATING to 'make-ready' raw parts.

PREVENTION
Th e scientific approach of controlling all manufacturing PROCEESSES  rather than
the product made by them.    The logic is to find which VARIABLES 'cause' any
given product CHARACTERISTIC and to control these  VARIABLES instead of the product.

PRI
PERFORMANCE REVIEW INSTITUTE

PROBABILITY
The mathematical calculation of the likelihood that an event will occur.

PROCESS CAPABILITY
The ability of a process to meet operating goals or internal- or external-customer requirements.
'CAPABILITY'  may differ from actual performance due to 'special cause'-conditions
or events due purely to chance and not to  the production system itself.

PROCESS FLOW DIAGRAMMING
A visual  systematic way of examining a process by diagramming all its inputs  outputs  and activities.

PRP
POTENTIALLY RESPONSIBLE  PARTY

PSD
PREVENTION OF SIGNIFICANT DETERIORATION

PSM
PROCESS SAFETY MANAGEMENT

PTFE
POLYTETRAFLUOROETHYLENE

PTH
PLATED THROUGH HOLE

PURPA
PUBLIC UTILITIES REFORM POLICY ACT

PVD
PHYSICAL VAPOR DEPOSITION

PWB
PRINTED WIRE BOARDS