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A rapid simple method for the measurement of iodide in water in the range of 0.01 ppm - 10,000 ppm

This is a method for the determination of potassium levels in fruit juices such as blackcurrant, orange, lemon, grape, etc. This method is also suitable for the determination of potassium in wine.

A laboratory method for the determination of Potassium concentration in air dried soil

This is a method for the determination of silver ion concentration in hypochlorite based fixer solutions

The pH of a mineral soil is defined as the pH, measured potentiometrically, of the suspension obtained by shaking the soil with water under controlled conditions.

A practical guide to check if your boats hull is protected.