Table of Equivalents
Additive per Ton*
GramsPercentPPMmg/kg**
10.000111.11.1
50.000555.55.5
100.00111111
1000.011110110
Pounds (avoirdupois)PercentPPMmg/kg**
10.05500500
20.1010001000

* 2000 lb or 907.2 kg; note 1 metric ton (1000 kg) = 2204.6 lb.
** for SI units, convert to moles when molecular weight is known.

References:
Philippine Veterinary Drug Directory (PVET) 16th Edition. (2019). Medicomm Pacific, Inc.

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