With the release of the new 23053 QPL in July of 2018 product shelf life was changed to dimensional life. This change means that shelf life is no longer a valid measurement of the products usefulness but it is now measured dimensionally.
The new QPL standard further clarifies that tubing may be used beyond 12 years provided the dimensions still meet the specification, eliminating the need to scrap or return tubing. Heat shrink tubing under M23053 does not expire, the standard calls for validation against the standard prior to use.
This eliminates the need to calculate percent of shelf life. If the dimension falls within QPL spec then the product qualifies and is good.
Below is a copy of the section in the QPL which covers dimensional life.
If you have existing tubing that is in question, Silver State would be happy to help confirm the dimensional life of it with you.
Should you have any questions please let us know,
Josh Lee
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