GB837478A - Improvements in or relating to apparatus for determining the sulphur dioxide concentration in air - Google Patents

Improvements in or relating to apparatus for determining the sulphur dioxide concentration in air

Info

Publication number
GB837478A
GB837478A GB475457A GB475457A GB837478A GB 837478 A GB837478 A GB 837478A GB 475457 A GB475457 A GB 475457A GB 475457 A GB475457 A GB 475457A GB 837478 A GB837478 A GB 837478A
Authority
GB
United Kingdom
Prior art keywords
air
sulphur dioxide
determining
relating
dioxide concentration
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB475457A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILLIAM GEORGE CUMMINGS
Central Electricity Generating Board
Original Assignee
WILLIAM GEORGE CUMMINGS
Central Electricity Generating Board
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 by WILLIAM GEORGE CUMMINGS, Central Electricity Generating Board filed Critical WILLIAM GEORGE CUMMINGS
Priority to GB475457A priority Critical patent/GB837478A/en
Publication of GB837478A publication Critical patent/GB837478A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

837,478. Determining sulphur dioxide content of air. CENTRAL ELECTRICITY GENERATING BOARD, CUMMINGS, W. G., and REDFEARN, M. W. Feb. 12, 1958 [Feb. 12, 1957], No. 4754/57. Class 40 (3). To determine the sulphur dioxide content of air, it is supplied by a pipe 2 to the lower end of a countercurrent absorption column 1 to the upper end of which starch-iodine reagent is supplied from a reservoir 6. The colours of the reagent before and after passage through the column 1 are compared by passing it through cells 7, 8 between a lamp 9 and photo-cells 12, 13. Fluid flow meters 14, 15 are provided. Specifications 837,477 and 837,479 are referred to.
GB475457A 1957-02-12 1957-02-12 Improvements in or relating to apparatus for determining the sulphur dioxide concentration in air Expired GB837478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB475457A GB837478A (en) 1957-02-12 1957-02-12 Improvements in or relating to apparatus for determining the sulphur dioxide concentration in air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB475457A GB837478A (en) 1957-02-12 1957-02-12 Improvements in or relating to apparatus for determining the sulphur dioxide concentration in air

Publications (1)

Publication Number Publication Date
GB837478A true GB837478A (en) 1960-06-15

Family

ID=9783146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB475457A Expired GB837478A (en) 1957-02-12 1957-02-12 Improvements in or relating to apparatus for determining the sulphur dioxide concentration in air

Country Status (1)

Country Link
GB (1) GB837478A (en)

Similar Documents

Publication Publication Date Title
GB875440A (en) Improvements in or relating to oxidation-reduction potential measurement
Shulman et al. Mass transfer coefficients and interfacial areas for 1-inch raschig rings
GB987406A (en) Method for purifying gases
GB1275964A (en) Apparatus for measuring potential on foaming liquids
GB837478A (en) Improvements in or relating to apparatus for determining the sulphur dioxide concentration in air
GB1080995A (en) Method and means for ascertaining the alcohol content of exhaled air
GB648222A (en) Bubble tray and support structure
CH377127A (en) Device for measuring the oxygen content in water
US2045866A (en) Laboratory apparatus
ES439570A2 (en) Gas purifying apparatus
GB1160717A (en) An Apparatus for the Detection of a Constituent of Exhaled Air
GB1224687A (en) Process for the determination of sulphur trioxide
JPS5263790A (en) Measurement of steam content
GB271027A (en) Improvements in methods of and apparatus for continuously determining quantitativelya given constituent of a mixture of gases
JPS5253493A (en) Sulfur concentration measuring apparatus
GB1026071A (en) Improvements in and relating to the determination of dissolved substances in water
Sebborn A routine method for measuring the efficiency of ferric oxide as an extractor of hydrogen sulphide from air
DE828603C (en) Gas measuring device
GB994051A (en) Method for determining the amine content in aqueous liquids
SU498584A1 (en) Method for gas analysis of drilling mud at gas logging
JPS51147383A (en) Gas sampling device for an analysis device
GB1055213A (en) Improvements in or relating to the determination of gas mixtures
SU135684A1 (en) Method for determination of trace amounts of nickel carbonyls in air
GB966064A (en) Improvements in or relating to aerodynamic analysers
GB970609A (en) Improvements in or relating to the determination of gas mixtures