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7. Reference materials
We have seen that only by applying a methodology to reference materials with certified values for the elements under study can an analytical method be validated. For this reason, we believe it is useful to refer to the list of environmental standards currently available on the market. Readers are invited to consult the article Non-nuclear reference materials. in this treatise.
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Reference materials
Bibliography
References
Website
American site devoted entirely to sample preparation (Duquesne University)
Standardization
Unlike the Environmental Protection Agency (EPA) in the United States, French standardization (AFNOR) was only very late in taking an interest in the preparation of environmental samples. This is probably due to the excessive diversity of samples and the division of standardization committees. However, some of them, such as metallurgy, fertilizers and fertilizer materials, drew up standards as early as 1965 to 1975. In...
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