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CEN/TS 15750:2008

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
Withdrawn date

08-03-2023

Published date

13-08-2008

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Sampling and sample preparation
6 Method A
7 Method B
8 Precision of methods A and B
9 Test report
Annex A (informative) Statistical results of the
        inter-laboratory tests
Bibliography

This document specifies two different methods (Methods A and B) for the determination of the total nitrogen content in fertilizers. Method A specifies the titrimetric method after distillation according to ISO 5315:1984 [2]. Method B specifies a method by reduction of nitrate with iron and tin(II)-chloride.

Committee
CEN/TC 260
DocumentType
Technical Specification
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn
SupersededBy

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
EN 12944-2:1999/AC:2000 FERTILIZERS AND LIMING MATERIALS AND SOIL IMPROVERS - VOCABULARY - PART 2: TERMS RELATING TO FERTILIZERS
ISO 385:2005 Laboratory glassware Burettes
EN 12944-1:1999/AC:2000 FERTILIZERS AND LIMING MATERIALS AND SOIL IMPROVERS - VOCABULARY - PART 1: GENERAL TERMS
EN 1482-2:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 5315:1984 Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
EN 1482-1:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling
EN ISO 385:2005 Laboratory glassware - Burettes (ISO 385:2005)

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