FR1489152A - Device for measuring the opacity of a film - Google Patents

Device for measuring the opacity of a film

Info

Publication number
FR1489152A
FR1489152A FR64453A FR64453A FR1489152A FR 1489152 A FR1489152 A FR 1489152A FR 64453 A FR64453 A FR 64453A FR 64453 A FR64453 A FR 64453A FR 1489152 A FR1489152 A FR 1489152A
Authority
FR
France
Prior art keywords
opacity
measuring
film
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
FR64453A
Other languages
French (fr)
Inventor
Pierre Andre Ruault
Amaury Causin
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.)
Engie SA
Original Assignee
Gaz de France SA
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 Gaz de France SA filed Critical Gaz de France SA
Priority to FR64453A priority Critical patent/FR1489152A/en
Application granted granted Critical
Publication of FR1489152A publication Critical patent/FR1489152A/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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/86—Investigating moving sheets
FR64453A 1966-06-07 1966-06-07 Device for measuring the opacity of a film Expired FR1489152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR64453A FR1489152A (en) 1966-06-07 1966-06-07 Device for measuring the opacity of a film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR64453A FR1489152A (en) 1966-06-07 1966-06-07 Device for measuring the opacity of a film

Publications (1)

Publication Number Publication Date
FR1489152A true FR1489152A (en) 1967-07-21

Family

ID=8610312

Family Applications (1)

Application Number Title Priority Date Filing Date
FR64453A Expired FR1489152A (en) 1966-06-07 1966-06-07 Device for measuring the opacity of a film

Country Status (1)

Country Link
FR (1) FR1489152A (en)

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