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XP U42-730 ; XP CEN/TS 17771:2022-05-18
Organic and organo-mineral fertilizers - Determination of the nitrogen content
Edition
2022-05-18
ASTM E 1787
Standard Test Method for Anions in Caustic Soda and Caustic Potash (Sodium Hydroxide and Potassium Hydroxide) by Ion Chromatography
Edition
2016
UNE-EN 15562
Inorganic fertilizers - Determination of cyanamide nitrogen
Edition
2024-03-20
ASTM C 1474
Standard Test Method for Analysis of Isotopic Composition of Uranium in Nuclear-Grade Fuel Material by Quadrupole Inductively Coupled Plasma-Mass Spectrometry
Edition
2019
UNE-EN 16913
Ambient air - Standard method for measurement of NO₃⁻, SO₄²⁻, Cl⁻, NH₄⁺, Na⁺, K⁺, Mg²⁺, Ca²⁺ in PM2,5 as deposited on filters
Edition
2018-02-28
UNE-CEN/TS 17757
Inorganic fertilizers - Determination of specific nutrients (Endorsed by Asociación Española de Normalización in May of 2022.)
Edition
2022-05-01
XP U42-800 ; XP CEN/TS 17757:2022-05-18
Inorganic fertilizers - Determination of specific nutrients
Edition
2022-05-18
BS EN ISO 9463
Nuclear energy. Nuclear fuel technology. Determination of plutonium in nitric acid solutions by spectrophotometry
Edition
2019-01-31
NF X43-035 ; NF EN 16913:2017-07-21
Ambient air - Standard method for measurement of NO3-, SO42-, Cl-, NH4+, Na+, K+, Mg2+, Ca2+ in PM2,5 as deposited on filters
Edition
2017-07-21
BS EN ISO 11905-1 ; BS 6068-2.62:1998-07-15
Water quality. Determination of nitrogen. Method using oxidative digestion with peroxodisulfate
Edition
1998-07-15