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ISO (International Organization for Standardization) is the world’s largest producer of optional international standards. International standards determine current specifications of products, services and certified methods, helping to streamline the industry. As they are created on the basis of international agreement, they assist in overcoming barriers in international trade.
Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation
(Engrais — Dosage de l´azote ammoniacal — Méthode titrimétrique apres distillation)
Standard published on 1.5.1981
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Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation
(Engrais — Dosage de l´azote total — Méthode titrimétrique apres distillation)
Standard published on 1.5.1984
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Fertilizers — Determination of water-soluble potassium content — Preparation of the test solution
(Engrais — Dosage du potassium soluble dans l´eau — Préparation de la solution d´essai)
Standard published on 1.5.1983
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Acoustics — Methods for calculating loudness — Part 1: Zwicker method
(Acoustique — Méthode de calcul du niveau d´isosonie — Partie 1: Méthode de Zwicker)
Standard published on 15.6.2017
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Acoustics — Methods for calculating loudness — Part 2: Moore-Glasberg method
(Acoustique — Méthode de calcul d´isosonie — Partie 2: Méthode Moore-Glasberg)
Standard published on 26.6.2017
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Acoustics — Methods for calculating loudness — Part 3: Moore-Glasberg-Schlittenlacher method
(Acoustique — Méthode de calcul du niveau d´isosonie — Partie 3: Titre manque)
Standard published on 13.7.2023
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Wood flooring and parquet — Vocabulary
(Planchers en bois et parquets — Vocabulaire)
Standard published on 22.7.2019
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Solid wood paving blocks — Hardwood paving blocks — Quality requirements
(Blocs de pavage en bois massif — Blocs de pavage en bois feuillus — Spécifications de qualité)
Standard published on 1.2.1978
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Solid wood paving blocks — General characteristics
(Blocs de pavage en bois massif — Caractéristiques générales)
Standard published on 1.2.1978
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Solid wood paving blocks — Softwood paving blocks — Quality requirements
(Blocs de pavage en bois massif — Blocs de pavage en bois résineux — Spécifications de qualité)
Standard published on 1.2.1978
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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