ppm = 10^-6
ppb = 10^-9
請問60000ppm = ? ppb
要有算式喔??
ppm變ppb問題
2009-09-28 12:00 am
回答 (1)
2009-09-28 12:52 am
✔ 最佳答案
(1 ppm) / (1 ppb) = (1 x 10-6) / (1 x 10-9)(1 ppm) / (1 ppb) = 1 000
1 ppm = 1 000 ppb
60000 ppm
= 60 000 ppm x (1 000 ppb / 1 ppm)
= 60 000 000 ppb ...... (答案)
收錄日期: 2021-04-13 16:51:49
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090927000016KK05777