WATER QUALITY. DETERMINATION OF KJELDAHL NITROGEN. METHOD AFTER MINERALIZATION WITH SELENIUM. (ISO 5663:1984).
Edition 1994-06-14

Water quality - Digestion for the determination of selected elements in water- Part 1: Aqua regia digestion. (ISO 15587-1:2002)
Edition 2002-11-28

Foodstuffs - Determination of trace elements - Determination of arsenic in seafood by graphite furnace atomic absorption spectrometry (GFAAS) after microwave digestion
Edition 2005-03-30

Pulps - Laboratory wet disintegration - Part 1: Disintegration of chemical pulps (ISO 5263-1:2004)
Edition 2005-05-18

Pulps - Laboratory wet disintegration - Part 2: Disintegration of mechanical pulps at 20 degrees C (ISO 5263-2:2004)
Edition 2005-05-18

Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead method (ISO 12677:2011)
Edition 2012-02-15

Solid recovered fuels - Methods for the determination of the content of major elements (Al, Ca, Fe, K, Mg, Na, P, Si, Ti)
Edition 2012-03-21

Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion and steam distillation method (ISO 5983-2:2009)
Edition 2009-10-28

Plant biostimulants - Determination of specific elements - Part 1: Digestion by aqua regia for subsequent determination of elements (Endorsed by Asociación Española de Normalización in May of 2022.)
Edition 2022-05-01

Chemical analysis of magnesite and dolomite refractory products (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents, dissolution and determination of gravimetric silica (ISO 10058-1:2008) (Endorsed by AENOR in February of 2009.)
Edition 2009-02-01