Jawaban:
ppm = part per million
0,00005/100=kadar dalam ppm/10^6
kadar dalam ppm = (0,00005×10^6)/100 = 0,5 ppm
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Jawaban:
ppm = part per million
0,00005/100=kadar dalam ppm/10^6
kadar dalam ppm = (0,00005×10^6)/100 = 0,5 ppm