METHOD AND DEVICE FOR MEASURING WATER OF CLEANING AGENT

• Main Authors: AOYANAGI ISAO, KAI KOICHIRO, OTSUKA HIROE, YOSHIDA MIZUHO
• Format: Patent
• Language: English; Japanese
• Published: 03.08.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a method and device for measuring water of a cleaning agent, capable of easily and accurately measuring a water content in the cleaning agent.SOLUTION: A method for measuring water in a cleaning agent (A) including water at a ratio of 1 mass% or more and less than 50 mass% or a cleaning agent (B) capable of mixing water derived from a contaminant therein without substantially including water comprises: the step of measuring the refractive index of the cleaning agent (A) or (B) by a refractive index measurement part 1; the step of measuring the density of the cleaning agent (A) or (B) by a density measurement part 2; and the calculation step of calculating a water content by a water calculation part 4 using a calibration curve previously formed on the basis of correlations among the water content, refractive index and density of the cleaning agent (A) or (B). 【課題】簡易かつ正確に洗浄剤中の水分量を測定できる洗浄剤の水分測定方法および洗浄剤の水分測定装置を提供する。【解決手段】洗浄剤の水分測定方法は、水を１質量％以上５０質量％未満の割合で含む洗浄剤（Ａ）、または水を実質的に含まないが、汚れ成分由来の水分を洗浄剤中に混和可能な洗浄剤（Ｂ）中の水分測定方法であって、前記洗浄剤（Ａ）または（Ｂ）の屈折率を屈折率測定部１により測定する工程と、前記洗浄剤（Ａ）または（Ｂ）の密度を密度測定部２により測定する工程と、予め作成された前記洗浄剤（Ａ）または（Ｂ）の水分量と屈折率および密度の相関関係に基づく検量線により水分量を水分算出部４により算出する算出工程と、を含むことを特徴とする。【選択図】図１