The meaning of the Acronym PPM is...

PPM is

• Investment Grade Municipal Income Fund

More Meanings For PPM:

• Parent Partition Mapping
• Portable Pixel Map Bitmap graphics
• Portable Pixel Map
• Pages Per Minute
• Pre Processor Module
• Perl Package Manager
• Packaged For Patch Manager
• Pollution of Pure Materials
• Portable PixelMap image format
• Pulse Position Modulation
• Pulse Period Modulation
• Parts Per Million
• Parts Per Million
• Potato Processing Machinery
• Parts Per Million

PPM is also in:

• Chemistry
• Drivers
• Electronics
• File Extensions
• Food
• General
• Meteorology
• Ocean Science
• Software
• Unit Measures