ICP Quality Issues

Availability

Consider the following:

• Does the blend have to be kept away from the air (oxygen) or light?
• Must it be refrigerated or frozen?
• Is it sensitive to fungal growth?
• How much time is required for preparation and how often is preparation required?
• If you purchase your standards, how quickly do you receive them?

Some of these questions may appear as if they belong in other sections but they all impact the availability of the standard in important ways. For example, blends that must be kept refrigerated or frozen cannot be used until allowed to come to room temperature. This is often the case with blends manufactured within the biological pH range of 4-10.

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