Gost 3351 74 Skachat Besplatno Pdf May 2026

Testing must be performed no later than 2 hours after initial collection to prevent physical and chemical shifts from altering the results.

Water collected specifically for these tests must not be preserved with chemicals. gost 3351 74 skachat besplatno pdf

The document outlines both sensory (organoleptic) and photometric testing methods, divided into four primary sensory vectors: Testing must be performed no later than 2

Detailed photometric methods to determine the transparency and hue of the water using a platinum-cobalt scale. gost 3351 74 skachat besplatno pdf