Global to push GA events into
skip to main content

Title: Detecting small holes in packages

A package containing a tracer gas, and a method for determining the presence of a hole in the package by sensing the presence of the gas outside the package are disclosed. The preferred tracer gas, especially for food packaging, is sulfur hexafluoride. A quantity of the gas is added to the package and the package is closed. The concentration of the gas in the atmosphere outside the package is measured and compared to a predetermined value of the concentration of the gas in the absence of the package. A measured concentration greater than the predetermined value indicates the presence of a hole in the package. Measuring may be done in a chamber having a lower pressure than that in the package. 3 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
203876
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; SCA: 420204; PA: EDB-96:060485; SN: 96001559458
Patent Number(s):
US 5,499,529/A/
Application Number:
PAN: 8-070,196
Contract Number:
AC09-89SR18035
Resource Relation:
Other Information: PBD: 19 Mar 1996
Research Org:
Westinghouse Savannah River Co
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; CONTAINERS; LEAK TESTING; SULFUR FLUORIDES; DETECTION; TRACE AMOUNTS; OPENINGS

Similar records in DOepatents and OSTI.GOV collections: