GB692082A - Improvements in or relating to apparatus for measuring particle size, shape-factor, specific surface, and concentration of powdered or dispersed materials - Google Patents

Improvements in or relating to apparatus for measuring particle size, shape-factor, specific surface, and concentration of powdered or dispersed materials

Info

Publication number
GB692082A
GB692082A GB3187348A GB3187348A GB692082A GB 692082 A GB692082 A GB 692082A GB 3187348 A GB3187348 A GB 3187348A GB 3187348 A GB3187348 A GB 3187348A GB 692082 A GB692082 A GB 692082A
Authority
GB
United Kingdom
Prior art keywords
deposit
size
suspension
slide
rims
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
GB3187348A
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 GB3187348A priority Critical patent/GB692082A/en
Publication of GB692082A publication Critical patent/GB692082A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/34—Microscope slides, e.g. mounting specimens on microscope slides

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

692,082. Optical apparatus; turbidometers. LEVITIN, J. Dec. 9, 1948, No. 31873/48. Classes 97 (i) and 97 (iii). To permit of measurement of the number and size of particles in a liquid suspension a transparent or opaque flat slide has therein one or more shallow closed rims forming enclosures into which a drop of the suspension may be placed, the liquid allowed to evaporate, and the deposited particles counted and measured microscopically or the density or reflectivity of the deposit measured photometrically or photoelectrically whereby the amount of material present may be deduced. As shown, the slide may carry a number of circular rims of different size or the rims may be square or of equal size. The slide may be of glass, synthetic resin or of metal. By microscopic examination of the deposit the frequency and size distribution of the particles and the specific surface of the deposit may be found. For rapid determination of the concentrating material in a drop of suspension, equal drops are placed one in each of the enclosures shown in Fig. 5 and form a knowledge of the size of enclosure which is completely covered by a single layer of deposit as determined by visual inspection the concentration can be deduced. The sedimentation apparatus described in Specification 692,083, [Group III], may be used.
GB3187348A 1948-12-09 1948-12-09 Improvements in or relating to apparatus for measuring particle size, shape-factor, specific surface, and concentration of powdered or dispersed materials Expired GB692082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3187348A GB692082A (en) 1948-12-09 1948-12-09 Improvements in or relating to apparatus for measuring particle size, shape-factor, specific surface, and concentration of powdered or dispersed materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3187348A GB692082A (en) 1948-12-09 1948-12-09 Improvements in or relating to apparatus for measuring particle size, shape-factor, specific surface, and concentration of powdered or dispersed materials

Publications (1)

Publication Number Publication Date
GB692082A true GB692082A (en) 1953-05-27

Family

ID=10329676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3187348A Expired GB692082A (en) 1948-12-09 1948-12-09 Improvements in or relating to apparatus for measuring particle size, shape-factor, specific surface, and concentration of powdered or dispersed materials

Country Status (1)

Country Link
GB (1) GB692082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033318A1 (en) * 1969-02-10 1970-12-04 Richardson Merrell Inc

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033318A1 (en) * 1969-02-10 1970-12-04 Richardson Merrell Inc

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