600 ppm equals what percent lead content?

600 ppm equals what percent lead content?

• A. 0.06%
• B. 0.6%
• C. 0.006%
• D. 0.0006%

Answer: (A)

Converting ppm to percent relies on understanding that percent is per hundred while ppm is per million. To go from ppm to percent, divide by 10,000 (since 1% equals 10,000 ppm). So 600 ppm ÷ 10,000 = 0.06. In other words, 600 parts per million is 0.06 percent lead content. If you compare the other options: 0.6% would be 60,000 ppm, 0.006% would be 60 ppm, and 0.0006% would be 6 ppm, all of which are different amounts of lead.

Converting ppm to percent relies on understanding that percent is per hundred while ppm is per million. To go from ppm to percent, divide by 10,000 (since 1% equals 10,000 ppm). So 600 ppm ÷ 10,000 = 0.06. In other words, 600 parts per million is 0.06 percent lead content. If you compare the other options: 0.6% would be 60,000 ppm, 0.006% would be 60 ppm, and 0.0006% would be 6 ppm, all of which are different amounts of lead.