ELUTION TEST METHOD FOR SLAG, AND METHOD FOR MEASURING ELUTION AMOUNT

摘要

PROBLEM TO BE SOLVED: To provide a method capable of measuring an elution amount of a predetermined metal in a slag eluate acquired by an officially set method in a short time and with a simple method, and easily determining whether or not the slag elute satisfies a regulation standard.;SOLUTION: An elution test method for slag containing at least lead includes the steps of: setting a plurality of kinds of slag containing lead of known concentration as standard samples, and preparing in advance a calibration curve representing a relationship between light transmittance of and lead concentration in a standard elute obtained by eluting metal containing lead from the standard samples by using a predetermined method; from slag as a test target containing lead of unknown concentration, obtaining a test target eluate by eluting metal containing lead by using the predetermined method; measuring light transmittance of the test target eluate; by using the prepared calibration curve, calculating an elution amount of lead in the test target eluate from the measured light transmittance; and determining whether or not the elution amount is a predetermined standard value or less.;COPYRIGHT: (C)2014,JPO&INPIT