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ppb

1
or p.p.b.
  1. (in publishing) paper, printing, and binding.
  2. parts per billion.


PPB

2
or P.P.B.
  1. (in publishing) paper, printing, and binding.
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Example Sentences

So long as detected levels of carbendazim are low enough, in the range of 10 to 35 ppb, they can stay for sale.

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PPARCPPC