G - Physics – 01 – N
Patent
G - Physics
01
N
324/45, 73/69
G01N 27/00 (2006.01) G01N 15/12 (2006.01)
Patent
CA 1218870
ABSTRACT A novel apparatus is provided for measuring the number of sizes of micro impurities such as fine dust or bacteria floating in ultrapure water. The apparatus is improved over the electrical pulse method for a high detection sensitivity and high precision and which does not operate erratically.
448449
Kawashima Kazuyasu
Sato Yoshihiro
Shirato Kozo
Erma Optical Works Ltd.
Fetherstonhaugh & Co.
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