百万分率计算器 — 公式
How to Calculate PPM
Formula
ppm = mass of solute (mg) / mass of solution (kg)
Equivalent to mg/L for dilute aqueous solutions. 1 ppm = 1 part per 1,000,000 parts.
计算示例
5 mg of fluoride in 1 kg of water.
- ppm = 5 mg / 1 kg
- ppm = 5 ppm
ppm = mass of solute (mg) / mass of solution (kg)
Equivalent to mg/L for dilute aqueous solutions. 1 ppm = 1 part per 1,000,000 parts.
5 mg of fluoride in 1 kg of water.