Netherlands Salifert NO3 Nitrate Test Agent 60 Times (For …, Singapore

1 Put 1ml Of Water In The Test Tube
2, Add 1 Spoon Of NO3-1 Powder
3, Add 1 Spoon Of NO3-2 Powder And Shake Gently (Not Shaking) For 30 Seconds
4, Leave It For 3 Minutes
5, Contrast Color Medium range (Medium range):
Place The Test Tube In The White Position Of The Color Card To Compare The Color.Use Diffuse Daylight When Contrasting.
If The Corresponding Color Value Is Smaller Than 10mg/L, It Is Better To Compare It By Pressing The Low Range Below (See Below).
Low range (low range):
If The Reading Is Less Than 10mg/L In The Medium range Then Can Be Compared According To The Low range.This Can Improve Accuracy.Use Diffuse Daylight When Contrasting.
Can Compare On One Side Of Test Tube.The Color Value After Observation Is Approximately 10x Larger, So The Value On The Color Card Is Divided By 10.For Example, 2 Becomes 0.2,50 Becomes 5




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