Visual meaning of 'ppm'? - learn with images, example in daily life

Visual illustration of ppm: (initialism) (common) Parts per million. (10000 ppm = 1%)

noun

(initialism) (common) Parts per million. (10000 ppm = 1%)

"The air quality report showed a carbon monoxide level of 50 ppm, which is considered safe. "

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Visual illustration of ppm: (initialism) page(s) per minute

noun

(initialism) page(s) per minute

"The printer's specifications state it can print 20 ppm in black and white. "

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