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Question/Answer

Are the Metals Standards ISO 9001 certified?

The standards are produced by a ISO 9001 accredited manufacturer. We are not the manufacturer and private label these standards. If you need the ISO certification with it you will need to request that at the time of order.

What would the expiration date be for any of the 1000 ppm standarards?

As a rule of thumb you can calculate the expiration date as 1 year from the ship date though there may be some exceptions due to stability of various elements.

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