NL6608707A - - Google Patents

Info

Publication number
NL6608707A
NL6608707A NL6608707A NL6608707A NL6608707A NL 6608707 A NL6608707 A NL 6608707A NL 6608707 A NL6608707 A NL 6608707A NL 6608707 A NL6608707 A NL 6608707A NL 6608707 A NL6608707 A NL 6608707A
Authority
NL
Netherlands
Application number
NL6608707A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of NL6608707A publication Critical patent/NL6608707A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1853—Hardness of water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/12—Condition responsive control

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
NL6608707A 1965-06-25 1966-06-23 NL6608707A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US466998A US3368969A (en) 1965-06-25 1965-06-25 Method of monitoring and controlling water hardness

Publications (1)

Publication Number Publication Date
NL6608707A true NL6608707A (fr) 1966-12-27

Family

ID=23853928

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6608707A NL6608707A (fr) 1965-06-25 1966-06-23

Country Status (4)

Country Link
US (1) US3368969A (fr)
FR (1) FR1484920A (fr)
GB (1) GB1122690A (fr)
NL (1) NL6608707A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440014A (en) * 1965-09-20 1969-04-22 Nalco Chemical Co Chelometric titration method
US3895913A (en) * 1974-09-06 1975-07-22 Betz Laboratories Photometric test method for chelant residual or deficiency
US4205955A (en) * 1978-09-28 1980-06-03 Hach Chemical Company Calcium and magnesium specific hardness method using aluminum chelate exchange reagent
US4334881A (en) * 1981-01-09 1982-06-15 General Electric Company Method and apparatus for automatic end-point detection in tripolyphosphate sequestration of hardness
JP3301358B2 (ja) 1997-08-27 2002-07-15 三浦工業株式会社 硬度指示薬
JP4120606B2 (ja) * 2004-03-30 2008-07-16 三浦工業株式会社 硬度測定用試薬
US7709265B2 (en) * 2005-03-24 2010-05-04 Johnsondiversey, Inc. Method and system for measuring water hardness
DE102009055007A1 (de) * 2009-12-18 2011-06-22 Judo Wasseraufbereitung GmbH, 71364 Rohwasserhärtebestimmung in einer Wasserbehandlungsanlage über die Leitfähigkeit des Weich- oder Verschnittwassers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235324A (en) * 1964-09-25 1966-02-15 Dow Chemical Co Boiler protection

Also Published As

Publication number Publication date
GB1122690A (en) 1968-08-07
US3368969A (en) 1968-02-13
FR1484920A (fr) 1967-06-16

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