EN ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements ISO 5167-1:2003;
ISO 12103-1:1997 Road vehicles - Test dust for filter evaluation - Part 1: Arizona test dust
ISO 2854:1976 Statistical interpretation of data; Techniques of estimation and tests relating to means and variances
DIN EN 779:2012 history
2012DIN EN 779:2012 Particulate air filters for general ventilation - Determination of the filtration performance; German version EN 779:2012