PPM

Look up ppm in Wiktionary, the free dictionary.

PPM is an initialism that may refer to:

Arts and entertainment

• Peter, Paul and Mary, a 1960s folk music trio
• Picture Postcard Monthly, a magazine for collectors of postcards
• Please Please Me, the first album by The Beatles

Organisations

• Mauritanian People's Party, Mauritanian political party
• Partido Popular Monárquico (People's Monarchist Party), Portuguese political party
• Persekutuan Pengakap Malaysia, the Scouts Association of Malaysia
• Progressive Party of Maldives, a political party in the Maldives

Science and technology

• Parry People Movers, a British company manufacturing lightweight railbuses
• Partially Permeable Membrane
• Peak programme meter, a type of audio level meter
• Portable People Meter, created by Arbitron to measure radio broadcast audiences
• PPM Star Catalogue An astrometric catalogue of 378,910 stars
• Proton precession magnetometer, which measures the strength and/or direction of a magnetic field by measuring the resonance frequency of protons (hydrogen nuclei) in the magnetic field
• Pulse-position modulation, a modulation scheme

Computing

• Perl package manager, a software utility for distributing pre-compiled Perl modules
• Permutation parity machine, a form of neural network for cryptography
• Probabilistic Packet Marking, an IP traceback method
• Portable pixmap, a graphics file format, see Netpbm format
• Prediction by partial matching, an algorithm for data compression
• "Processor Power Management", an update of Advanced Configuration and Power Interface
• Puppy Package Manager, the package management system of Puppy Linux

Medicine

• Permanent pacemaker or artificial pacemaker
• Persistent pupillary membrane, a condition in the eye
• Physician practice management, e.g. Caremark Rx
• PowerPerformance Management, hospital software for calculating the cost of service delivery

Units (x ppm)

• Pages per minute, a measurement of printing speed
• Parts per million, a way of quantifying small concentrations, usually mass
• pixel per meter, analogue of dots per inch for displays
• Points per minute, commonly used in video games to quantify points earned per minute
• Temperature coefficient, expressed as ppm/K or ppm/C meaning "parts per million per kelvin" or "...per degree Celsius" respectively

Management

• Planning and Performance Management, the name of a part of an organisation

Other uses

• Planetary Peace Movement, an initiative to help the world by spreading meditation for peace and illumination.
• Planned Preventive Maintenance, a schedule/program for building maintenance
• Private Placement Memorandum, the initial offering document for a private placement, also known as prospectus
• Product Portfolio Management, an aspect of Product Management
• Project Portfolio Management, methods for analyzing and collectively managing projects
• Project Procurement Manager, A Person responsible for procurement activities in a Project
• Public Performance Measure, the punctuality of trains in Britain