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VDI 3797 Blatt 1:1980-02 (R2015) Testing of the presumable resistance of preserved and not preserved natural stone against air pollutants; sodium sulfate cristallisation test
VDI 3488 Blatt 1:1979-12 (R2015) Gaseous emission measurement; measurement of chlorine and oxides of chlorine; methyl orange method
VDI 3486 Blatt 2:1979-04 (R2015) Measurement of gaseous emission; Measurement of the hydrogen sulfide concentration; lodometric titration method
VDI 3486 Blatt 1:1979-04 (R2015) Measurement of gaseous emissions; Measurement of the hydrogen sulfide concentration; potentiometric titration method
VDI/DGQ 3444:1978-09 (R2014) Statistical control of exactly working and positioning of coordinate drilling machines and machining centers
VDI 3487 Blatt 1:1978-11 (R2014) Gaseous emission measurement; measurement of carbon disulfide concentration; iodometric titration method
VDI 3795 Blatt 1:1978-06 (R2016) Determination of air pollution components in biological material; determination of fluorides in biological material and IRMA-solutions; photometric analysis