National Field Quality Assurance Project. Preparing a concentrated che

National Field Quality Assurance Project. Preparing a concentrated chemical solution to be used to make a blind sample

Detailed Description

Initial preparation of a concentrated chemical solution to produce very large volumes of blind performance assessment samples used for annual testing of field personnel in the measurement of water-quality parameters.

Details

Image Dimensions: 2847 x 2848

Date Taken:

Location Taken: US