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Home > About USPS & News > Forms & Publications > Postal Periodicals and Publications > Publications > Publication 2 - Packaging for Mailing > Appendix A Package Testing > Very Important
The entire document shall be read and understood before proceeding with a
test.
There are three sections: Overview, Testing and Report
• Overview provides the general knowledge required before going into
the testing laboratory and
• Testing presents the specific instructions to do the testing in the
laboratory and
• Report indicates what data shall be recorded to submit a test report to
ISTA.
ISTA Test Procedures and Test Projects are the worldwide leaders in
Performance Tests for Packaged-Products.
Two systems of weights and measures are presented in ISTA test
procedures. They are the English system (Inch-Pound) and the international
system SI (Metric). Inch-Pound units are shown first with Metric units in
brackets, except in some tables where they are shown separately.
• Either system may be used as the unit of measure (standard units),
but
• The standard units chosen shall be used consistently throughout the
procedure.
• Units are converted to two significant figures and
• Not exact equivalents.
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