DIN 38406-5:1983 German standard methods for the examination of water, waste water and sludge; cations (group E); determination of ammonia-nitrogen (E 5)
DIN EN ISO 11732:2005 Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005); German version EN ISO 11732:2005
DIN EN ISO 14911:1999 Water quality - Determination of dissolved Li<(hoch)+>, Na<(hoch)+>, NH<(Index)4><(hoch)+>, K<(hoch)+>, Mn<(hoch)2+>, Ca<(hoch)2+>, Mg<(hoch)2+>, Sr<(hoch)2+> and Ba<(hoch)2+> using ion chromatography - Method for water and waste water (ISO 14911:1998); G
DIN EN ISO 20988:2007 Air quality - Guidelines for estimating measurement uncertainty (ISO 20988:2007); English version of DIN EN ISO 20988:2007-09
DIN EN ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2005); German and English version EN ISO/IEC 17025:2005
DIN ISO 4225:1996 Air quality - General aspects - Vocabulary (ISO 4225:1994)
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
VDI 1000-2010 VDI Guideline Work - Principles and procedures
VDI 2119-2013 Ambient air measurements - Sampling of atmospheric particles > 2,5 ?m on an acceptor surface using the Sigma-2 passive sampler - Characterisation by optical microscopy and calculation of number settling rate and mass concentration
VDI 2310 Blatt 1-2010 Maximum immission values - Aim and significance of the series of guidelines VDI 2310
VDI 3794 BLATT 2-2013 history
2013VDI 3794 Blatt 2-2013 Determination of depositon fluxes of ambient air pollutants - Determination of the deposition flux of ammonia and ammonium compounds by means of the IRMA method
2003VDI 3794 Blatt 2-2003 Determination of immission rates - Determination of the deposition rates of ammonia and ammonia compounds with the IRMA-method (Immission Rates Measurement Apparatus)
2001VDI 3794 Blatt 2-2001 Determination of immission rates - Determination of the immission rate of ammonia and ammonia compounds by means of the IRMA-method