Bottles used for collecting water samples for chemical analysis should meet which
of the following requirements?
b. Chemically clean.
At least 2-liters in capacity.
d. Of dark glass to exclude light.
e. Hooded to prevent contamination.
Contain 0.02-0.05 g sodium thiosulfate.
Which form is used to annotate and accompany samples for chemical analysis?
10. Which of the following readings can be made using the standard color
a. pH 1.0.
b. pH 3.0.
d. pH 7.2.
e. pH 8.0.
0.1 ppm CI.
1.0 ppm CI.
h. 2.5 ppm CI.
5.0 ppm CI.
7.0 ppm CI.