1. General information
This document is designed and the certified value(s) and uncertainty(ies) are determined in accordance with ISO Guide 31[1].
2.1 Intended use of the RM
- for laboratory use only
- calibration of analytical instruments。
2.2 Instruction for the correct use of the RM
The compound should be stored at 2-8℃ in a dark place. Before usage of the RM , the compound should be allowed to warm to temperature(20±3℃). The recommended minimum sub - sample amount for all kinds of application is 100 μL. The expiry date of this RM is based on the current knowledge and holds only for proper storage conditions in the originally closed flasks/ packages.
2.3 Hazardous situation
The normal laboratory safety precautions should be observed when working with this RM.Further details for the handing of this RM are available as safety data sheet.
3. Certified values and their uncertainties
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4.Discussion of traceability
This calibrant is certified on the basis of gravimetric preparation[3]. Thus the certified value(mass concentration of Multi-Toxin based on the weighed amount of the starting material and is therefore traceable to the stated purity of the solid raw material. High purity material represents a practical realization of concentration units, through conversion of mass to molar quantity.
5. Confirmation of certified value by HPLC-DAD
The certified concentration of Multi-Toxin of the gravimetric prepared solution was confirmed by HPLC-DAD against an independently prepared reference batch of Multi-Toxin.
6.Further information
The purchaser must determine the suitability of this product for its particular use. Pribolab makes no warranty of any kind, express or implied, other than its products meet all quality control standards set by Pribolab. We do not guarantee that the product can be used for a special application.
Inspected by 
Quality System Specialist
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