IT1060361B - Non destructive hardness testing of gas permeable articles - by measuring volume change on application of vacuum - Google Patents

Non destructive hardness testing of gas permeable articles - by measuring volume change on application of vacuum

Info

Publication number
IT1060361B
IT1060361B IT2440874A IT2440874A IT1060361B IT 1060361 B IT1060361 B IT 1060361B IT 2440874 A IT2440874 A IT 2440874A IT 2440874 A IT2440874 A IT 2440874A IT 1060361 B IT1060361 B IT 1060361B
Authority
IT
Italy
Prior art keywords
gas permeable
vacuum
application
volume change
measuring volume
Prior art date
Application number
IT2440874A
Other languages
Italian (it)
Original Assignee
Tobacco Res & Dev
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 Tobacco Res & Dev filed Critical Tobacco Res & Dev
Application granted granted Critical
Publication of IT1060361B publication Critical patent/IT1060361B/en

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Landscapes

  • Examining Or Testing Airtightness (AREA)

Abstract

In non-destructive testing of a gas permeable article a pneumatic suction is applied to the interior of the article and the volumetric change of the article, is measured. The article is surrounded by a liq. and the change in the level of the surrounding liq. is taken as a measure of the volumetric change of the article.
IT2440874A 1974-01-31 1974-06-25 Non destructive hardness testing of gas permeable articles - by measuring volume change on application of vacuum IT1060361B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA74651 1974-01-31

Publications (1)

Publication Number Publication Date
IT1060361B true IT1060361B (en) 1982-07-10

Family

ID=25567330

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2440874A IT1060361B (en) 1974-01-31 1974-06-25 Non destructive hardness testing of gas permeable articles - by measuring volume change on application of vacuum

Country Status (1)

Country Link
IT (1) IT1060361B (en)

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