GB843936A - Improvements in or relating to apparatus for detecting and indicating the presence and amounts of co in an atmosphere - Google Patents

Improvements in or relating to apparatus for detecting and indicating the presence and amounts of co in an atmosphere

Info

Publication number
GB843936A
GB843936A GB2202056A GB2202056A GB843936A GB 843936 A GB843936 A GB 843936A GB 2202056 A GB2202056 A GB 2202056A GB 2202056 A GB2202056 A GB 2202056A GB 843936 A GB843936 A GB 843936A
Authority
GB
United Kingdom
Prior art keywords
pict
iii
vessel
porous
indicating
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
GB2202056A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2202056A priority Critical patent/GB843936A/en
Publication of GB843936A publication Critical patent/GB843936A/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
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (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)

Abstract

<PICT:0843936/III/1> <PICT:0843936/III/2> <PICT:0843936/III/3> A compensated apparatus for detecting and indicating the presence of and amounts of CO2 in an atmosphere by pressure changes consequent on absorption of CO2 comprises a pair of identical CO porous vessels 1 and 2. The porous vessel 1 is connected by a means of a duct 9 pipe 10 to the upper end of a manometer tube 11 formed in a block 12 of transparent material. The interior 13 of the other porous vessel 2 is connected by means of a duct 14 and pipe 15 to the chamber 16 of the manometer tube 11 which contains the indicating liquid 17. The porous vessel 1 has inserted therein a carton of moist soda lime 21 while the other vessel 2 has a carton of cotton wool or other absorbent material 22 whose hygroscopic properties have been increased. Detachable cover plates 23 are attached to the top of the vessels to facilitate the insertion and removal of the cartons 21 and 22. The vapour pressures in cartons 21 and 22 have been allowed to equalise by storing in a sealed container before insertion into their respective vessels.
GB2202056A 1957-10-17 1957-10-17 Improvements in or relating to apparatus for detecting and indicating the presence and amounts of co in an atmosphere Expired GB843936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2202056A GB843936A (en) 1957-10-17 1957-10-17 Improvements in or relating to apparatus for detecting and indicating the presence and amounts of co in an atmosphere

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2202056A GB843936A (en) 1957-10-17 1957-10-17 Improvements in or relating to apparatus for detecting and indicating the presence and amounts of co in an atmosphere

Publications (1)

Publication Number Publication Date
GB843936A true GB843936A (en) 1960-08-10

Family

ID=10172614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2202056A Expired GB843936A (en) 1957-10-17 1957-10-17 Improvements in or relating to apparatus for detecting and indicating the presence and amounts of co in an atmosphere

Country Status (1)

Country Link
GB (1) GB843936A (en)

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