Bl This standard establishes the drip method to determine the thickness of a layer of lead, zinc or cadmium, electrodeposited on steel, by measuring the time required for a corrosive solution to penetrate the considered layer.
IRAM 117-1956 history
1956IRAM 117-1956 Method for measuring the electrolytic precipitation thickness of lead, zinc and cadmium on steel surface by drip irrigation method