这里提到对于没有有效期和复验期的产品，行业的经验是在开盖后5年，这个可以作为参考。
Expiration Dated Products
Products in the expiration date program will have an Expiration Date printed on the label and the Certificate of Analysis. This date assigns the time frame during which the batch is expected to remain within established specifications if stored under Sigma-Aldrich’s defined conditions. The batch should not be used after this date.
Expiration Dates on our labels and/or Certificates of Analysis are valid only if the product is stored under Sigma-Aldrich’s defined conditions, and the container has remained unopened with original tamper evident seal still intact.
Products with No Retest or Expiration Date
A number of Sigma-Aldrich products are not included in either of the above programs as there is no indication to conclude they are unstable. The only date shown on the certificate of analysis will be the Quality Release date. For these products there is no stated expiration or recommended retest date, and the shelf life has not been determined. Sigma-Aldrich recommends handling per defined conditions as printed in our product literature and website product descriptions. Sigma-Aldrich further suggests following industry laboratory practices of using products with no expiration date or retest dates within 5 years of opening. These products should be routinely inspected to ensure they perform as expected.
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发表于 2014-7-24 16:01:27
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