ISO 4324:1977 pdf download.Surface active agents — Powders and granules — Measurement of the angle of repose. INTRODUCTION Determining the angle of repose of powders and granules may give information on the storage properties of the powder,...
ISO 4316:1977 pdf download
ISO 4316:1977 pdf download. Surface active agents — Determination of pH of aqueous solutions — Potentiometric method. 1 SCOPE AND FIELD OF APPLICATION This International Standard specifies a method for the determination of the pH of aqueous...