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 Question :
Subject :  ppb
Full Text : What is PPB stand for
User Name :  abbas
Email :  sheithjen@yahoo.com
Insert Date :  18 Saturday November 2006  4:10
 Response All Count : 1
Response No 1
Subject :  ppb
Full Text : ppb stands for part per billion, which is 1000 times smaller than per million
Insert Date :  24 Saturday February 2007  2:50
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