Can I extend my use of a standard or chemical beyond the expiration date on the label? - WKB265058

ENVIRONMENT

• Leucine enkephalin
• AccQ•Tag reagent
• Expiration dates

ANSWER

If a lab chooses to use a product beyond the vendor-stated expiration date on the label, the lab takes on the responsibility to verify that it will still work for the intended use.

ADDITIONAL INFORMATION

The packaging, storage, distribution, and shipment of the standard or chemical prior to arriving at a lab are outside the lab's control and play a part in determining the expiration dates based on the vendor's intended use of the product.

It is advised that a lab establish a protocol for re-evaluation of the standard or chemical after a predetermined time period set by the lab, if that chemical is used beyond the stated expiration date on the label.