What is the test summary procedure for measuring COLOR?

The test summary procedure for measuring color involves collecting the sample and placing it into tubes before comparing it to standardized color samples under a specific light source. This method effectively allows for a visual assessment of the sample's color, which is essential for many analyses in water quality testing.

The visual comparison against color standards enables precise measurement since color can indicate the presence of various substances or contaminants in a sample. Under standardized lighting conditions, variations in color intensity and hue can be accurately assessed, making this method both reliable and straightforward for determining water quality.

In contrast, the other procedures listed are focused on different analytical techniques. Filtering and measuring conductivity pertains to assessing the ionic composition of a sample, titrating to determine pH relates to acidity or alkalinity, and centrifuging followed by microscopic analysis involves examining solid particles or microorganisms rather than color. These methods serve distinct purposes within laboratory analysis but do not directly measure color.