ISO 17322:2015 PDF

Name: ISO 17322:2015 — Fertilizers and soil conditioners — Analytical methods for Sulfur Coated Urea (SCU)
SKU: ISO 17322:2015
Price: 25 EUR
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Fertilizers and soil conditioners — Analytical methods for Sulfur Coated Urea (SCU)

Название (английский):

ISO 17322:2015

Fertilizers and soil conditioners — Analytical methods for Sulfur Coated Urea (SCU)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 48
Дата публикации:: 3 июня 2015 г.
Издание:: ISO IS 17322 edition 1 version 1
ICS:: 65.080

Тип поставки:

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Язык документа:

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Срок поставки:8 раб. дн. (перевод)

Цена:720 €

Описание (английский):

ISO 17322:2015 specifies analytical methods for the determination of mass fraction of total nitrogen, one-day dissolution rate (1DDR), seven-day dissolution rate (7DDR), mass fraction of sulfur, mass fraction of biuret, mass fraction of water (H2O), and particle size of SCU. These methods are applicable to SCU.

Abstract

Overview

Key topics and technical requirements

Scope and applicability
- Analytical methods are specifically applicable to Sulfur Coated Urea (SCU).
- Sampling and sample preparation are carried out in accordance with ISO 17323.
Total nitrogen
- Determination follows ISO 5315 (titrimetric method after distillation).
One‑day and seven‑day dissolution rates (1DDR and 7DDR)
- Two validated approaches:
  - Titrimetric method after distillation - sample incubation (e.g., 20 g in a nylon net, 200 ml water) at (38.0 ± 0.5) °C for 24 h and 7 d, filtration, then nitrogen analysis.
  - Refractometer method - a faster alternative for dissolution rate measurement.
Sulfur content
- Dedicated procedure to determine the mass fraction of sulfur (principle, reagents, apparatus and calculation are specified).
Biuret and water content
- Methods for mass fraction of biuret are specified including calibration procedures.
- Water content determination references the Karl Fischer titration technique (ISO 760).
Particle size
- Particle size testing and sieving reference test sieves (ISO 3310‑1).
Quality assurance and precision
- Includes provisions on repeatability, reproducibility and interlaboratory (ring) tests and reporting requirements.

Practical applications and users

ISO 17322:2015 is intended for:

Fertilizer manufacturers and QC labs that produce or test Sulfur Coated Urea (SCU).
Third‑party testing laboratories and certification bodies performing conformity assessments.
Regulatory agencies and procurement teams verifying product specifications for compliance and performance.
Agronomists and R&D groups evaluating slow‑release fertilizer performance (dissolution rates, nutrient content).

Benefits:

Ensures consistent, comparable analytical results for SCU across laboratories.
Supports product labeling, quality control, and international trade.

Related standards

ISO 5315 - Determination of total nitrogen (titrimetric after distillation)
ISO 760 - Water determination - Karl Fischer method
ISO 17323 - SCU - General requirements (sampling and sample prep)
ISO 3310‑1 - Test sieves - technical requirements

Keywords: ISO 17322, Sulfur Coated Urea, SCU, analytical methods, one‑day dissolution rate, 1DDR, 7DDR, total nitrogen, sulfur content, biuret, Karl Fischer, particle size.

Технические детали

Технический комитет: ISO/TC 134 - Fertilizers, soil conditioners and beneficial substances
SKU: ISO 17322:2015

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Каталог

BS ISO 17322:2015

Действующий

Fertilizers and soil conditioners. Analytical methods for Sulfur Coated Urea (SCU).

60 · PDF

50 €

ISO 17323:2015

Действующий

Fertilizers and soil conditioners — Sulfur Coated Urea (SCU) — General requirements

Overview ISO 17323:2015 is an international standard that defines the general requirements for Sulfur Coated Urea (SCU), a slow-release fertilizer widely used in agriculture. Developed by the Interna…

6 · PDF

25 €

ISO 5315:1984

Действующий

Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation

Overview ISO 5315:1984 specifies a titrimetric method for the determination of total nitrogen in fertilizers. The method combines chemical reduction of nitrate, mineralization (or hydrolysis) of orga…

5 · PDF

25 €

SIST ISO 760:1995

Действующий

Determination of water -- Karl Fischer method (General method)

Overview SIST ISO 760:1995 specifies a general method for determining water content in solid or liquid chemical products using the Karl Fischer method. This internationally recognized standard, devel…

15 · PDF

60 €