While many jurisdictions have transitioned to newer regional standards like or modern SanPiN regulations, the testing procedures outlined in GOST 3351-74 remain highly referenced for historical and educational purposes in water treatment. 🔬 Core Methods of Analysis

Detailed photometric methods to determine the transparency and hue of the water using a platinum-cobalt scale.

Water collected specifically for these tests must not be preserved with chemicals.

Below is an overview article discussing the significance and application of this interstate standard.

🚰 Understanding GOST 3351-74: Drinking Water Quality Analysis