Laboratory Procedure to Prepare Standards Reagents and Solutions

Procedure for preparing standardized chemical reagents and solutions

1. The purpose of this document is to describe the procedures to produce standard reagents , miscellaneous solutions and indicators.
2. The technician should have been trained to run titrations and to use the automatic testators if necessary; specifically, the operator should recognize when the end point occurs.
3. The lab supervisor should develop a cleaning and maintenance schedule for the equipment to ensure reliable results.

It Provides information on:

1. Purpose of Process
2. Technician Responsibilities
3. Process Controls
4. Preparing and standardizing 1N NaOH.
5. Preparing and standardizing 1N NaOH.
6. Preparing and Standardizing 0.0159N NaOH
7. Preparing 1N HCl and Standardizing 1N HCl with sodium carbonate.
8. Preparing and standardizing 0.01M zinc sulfate
9. Preparing pH 11.70 buffer solution
10. Preparing 2Molar cadmium nitrate
11. Preparing phenolphthalein indicator for leak tests
12. Preparing Standards for the AA spectrometer