Testing of surface active agents; determination of the stability of surface active agents and products made of such against hard water, stability against water with only calcium hardness— 3 стр.
Testing of surface active agents; determination of the stability of surface active agents and products made of such against hard water; stability against water with only calcium hardness— 3 стр.
Testing of surface active agents; determination of the stability of surface active agents and products made of such against hard water; stability against water with only calcium hardness— 3 стр.