ISO standards free download ISO 4324:1977 pdf download – Surface active agents – Powders and granules – Measurement of the angle of repose ISO 4324:1977 pdf download - Surface active agents - Powders and granules - Measurement of the angle of repose 5.1.2 Agitator, comprising two rods placed opposite one another along the whole length of the interior Wall of... 03-05 Read More