VDI 4221 Blatt 2:2017-03

This standard specifies requirements on the design of interlaboratory testing schemes and the performance and evaluation of interlaboratory tests for emission measurement methods under laboratory conditions. This standard applies to interlaboratory testing schemes for checking the quality of laboratories and for checking measuring systems and measurement methods for the determination of emissions at stationary sources. These schemes include interlaboratory tests for particulate matter and chemicals adsorbed onto particles as well as for gaseous inorganic and organic chemical compounds. This standard may be applied in conjunction with VDI 4221 Part 1 only. This standard applies to providers of interlaboratory tests, to accreditation bodies, to testing laboratories and competent authorities in the field of immission control.