ppm to % (w/w)

[Kel]

How can I convert 10 ppm to % (w/w)?

[Guest]

How can I convert 10 ppm to % (w/w)?

Oercent is "parts per hundred" so just divide by 10,000. (move decimal four places left).
0.0010%

[Guest]

Oercent is "parts per hundred" so just divide by 10,000. (move decimal four places left).
0.0010%

So in reverse - 0.1 % w/w becomes 1000ppm?