Indoor air. Part 13. Determination of total polychlorinated dioxin-like biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/PCDFs) (gas and particle phase). Collection on sorbent backed filters
Information technology. Telecommunications and information exchange between systems. Provision of the connection-mode Network internal layer service by intermediate systems using ISO/IEC 8208, the X.25 packet layer protocol
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