Seal Quality
Good seals are a result of time, temperature and pressure for the correct clean material. Several standard test methods are available to measure the strength of heat seals. In addition, package testing is used to determine the ability of completed packages to withstand specified pressure or vacuum. Several methods are available to determine the ability of a sealed package to retain its integrity, barrier characteristics, and sterility.
Heat sealing processes can be controlled by a variety of quality management systems such as HACCP, statistical process control, ISO 9000, etc. Verification and validation protocols are used to ensure that specifications are met and final materials/packages are suited for end-use.
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Famous quotes containing the words seal and/or quality:
“We have progressively improved into a less spiritual species of tenderness—but the seal is not yet fixed though the wax is preparing for the impression.”
—George Gordon Noel Byron (1788–1824)
“The quality of decision is like the well-timed swoop of a falcon which enables it to strike and destroy its victim.”
—Sun Tzu (6–5th century B.C.)