Calculating Active Content Calculating Active Content

Posted on by Carol Wu

Name

Symbol

Coefficient

Percent

%

10-2

Per-mille

10-3

Parts per million

ppm

10-6

Parts per billion

ppb

10-9

Parts per trillion

ppt

10-12


Gram

Symbol

Name

103 g

Kg

Kilogram

1 g

g

Gram

10-3 g

mg

Milligram

10-6 g

ug

Microgram

10-9 g

ng

Nanogram

10-12 g

pg

Picogram


Parts per million (ppm) is a measurement of chemical concentration (active content) of a liquid solution.  1ppm is expressed as 1 milligram per 1,000,000 milligram which can also be written as 0.001g/Kg (please refer to the above unit conversion table).  When the solution is water, then 1 Kg is approximately 1 Liter, and can also be written as 1mg/L.

ppm is often used in active ingredients that use at very low concentration.  For example, pure 100% copper tri-peptide comes in powder form, and the usual suggested concentration varies from 2ppm - 50ppm.  That means using 0.002g/kg - 0.05g/kg of your product.

How to convert ppm to % ?

P(%) = P(ppm) ÷ 1,000,000 x 100

 

Name

Symbol

Coefficient

Percent

%

10-2

Per-mille

10-3

Parts per million

ppm

10-6

Parts per billion

ppb

10-9

Parts per trillion

ppt

10-12


Gram

Symbol

Name

103 g

Kg

Kilogram

1 g

g

Gram

10-3 g

mg

Milligram

10-6 g

ug

Microgram

10-9 g

ng

Nanogram

10-12 g

pg

Picogram


Parts per million (ppm) is a measurement of chemical concentration (active content) of a liquid solution.  1ppm is expressed as 1 milligram per 1,000,000 milligram which can also be written as 0.001g/Kg (please refer to the above unit conversion table).  When the solution is water, then 1 Kg is approximately 1 Liter, and can also be written as 1mg/L.

ppm is often used in active ingredients that use at very low concentration.  For example, pure 100% copper tri-peptide comes in powder form, and the usual suggested concentration varies from 2ppm - 50ppm.  That means using 0.002g/kg - 0.05g/kg of your product.

How to convert ppm to % ?

P(%) = P(ppm) ÷ 1,000,000 x 100