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2. AFNOR. 2006. «NF EN ISO 18757, Determination of specific surface area pf ceramic powders by gas adsorption using the BET method», juin 2006.
3. AFNOR. 2009. «NF EN 15326, Measurement of density and specific gravity», juillet 2009.
4. AFNOR. 2002. «NF EN 12457-2, Leaching-Compliance test for leaching of granular wasre materials ans sludges», décembre 2002.
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