Standard Test Method for Fire-Resistive Joint Systems Ingestion-build-51747 A class 5 site is

A class 5 site is a site where nearby obstacles create an inappropriate environment for a meteorological measurement that is intended to be representative of a wide area (at least tens of km2)

Denmark and Great Britain

Additional information provided on anthracite sample packing and homogeneity test in Annex A and standard deviation formula and flowchart for standard anthracite sample taking in Annex B

NOTE This European Standard is intended to be used in conjunction with one or more of the international regulations set out in the Bibliography

Extraction systems designed for dust with KST values above 200 bar ms−1

Standard Test Method for Fire-Resistive Joint Systems Ingestion-build-51747 A class 5 site is