ISO 14820-2-2016 PDF

Full title and description

St ISO 14820-2:2016 — Fertilizers and liming materials — Sampling and sample preparation — Part 2: Sample preparation. This part of ISO 14820 specifies methods for the reduction and preparation of laboratory samples of fertilizers and liming materials and the requirements for sample preparation reports, and it defines how to obtain test samples and test portions for subsequent chemical or physical analysis.

Abstract

ISO 14820-2:2016 covers methods for reducing and preparing samples of fertilizers and liming materials and for producing test samples/test portions from laboratory samples intended for chemical or physical analysis. It excludes preparation of samples for certain physical tests that require test portions larger than 2 kg. The document treats “fertilizer” as inclusive of liming materials except where noted.

General information

• Status: Published (International Standard, confirmed stage).
• Publication date: May 2016 (2016-05).
• Publisher: ISO (International Organization for Standardization).
• ICS / categories: 65.080 (Fertilizers).
• Edition / version: Edition 1 (2016).
• Number of pages: 7.

Key bibliographic and status details above are taken from the ISO record for ISO 14820-2:2016.

Scope

Specifies procedures for the reduction and preparation of laboratory samples of fertilizers and liming materials to obtain representative test samples or test portions for subsequent chemical or physical analysis. Applicable to all fertilizers and liming materials, it sets out sample-preparation operations and reporting requirements but does not cover preparation for some physical tests requiring test portions greater than 2 kg.

Key topics and requirements

• Principles and requirements for sample reduction and homogenization of fertilizer and liming material laboratory samples.
• Methods to obtain representative test samples and test portions (e.g., mechanical splitting, coning-and-quartering and comminution as appropriate to material type and particle size).
• Preparation steps prior to chemical or physical analysis (drying, sieving, grinding or other comminution where required).
• Specification of minimum/maximum test portion sizes and limitations (excludes preparation for tests needing >2 kg portions).
• Documentation and sample preparation reporting requirements to ensure traceability of sample history and handling.

Typical use and users

Used by analytical laboratories, fertilizer manufacturers, quality assurance teams, regulatory/inspection bodies, trading/packaging facilities and researchers who need standardized, reproducible sample-preparation procedures for chemical and physical testing of fertilizers and liming materials.

Related standards

ISO 14820 is a multipart series on fertilizers and liming materials — sampling and sample preparation. Closely related parts include ISO 14820-1:2016 (Part 1: Sampling) and ISO 14820-3:2020 (Part 3: Sampling of static heaps). These parts cover representative sampling plans (Part 1) and sampling of static heaps (Part 3), respectively, and are intended to be used together where applicable.

Keywords

Fertilizers; liming materials; sampling; sample preparation; sample reduction; test portion; homogenization; laboratory sample; ISO/TC 134.

FAQ

Q: What is this standard?

A: ISO 14820-2:2016 is the ISO international standard that defines methods for reduction and preparation of laboratory samples of fertilizers and liming materials to obtain test samples/test portions for analysis.

Q: What does it cover?

A: It covers sample-reduction and preparation techniques, preparation of test samples/test portions for chemical and many physical analyses, and reporting requirements. It does not cover preparation for some physical tests that need test portions larger than 2 kg.

Q: Who typically uses it?

A: Analytical laboratories, fertilizer producers, QA/QC personnel, conformity assessment and regulatory bodies, and researchers working with fertilizer or liming-material testing typically use this standard.

Q: Is it current or superseded?

A: ISO 14820-2 was published in 2016 (Edition 1) and is listed in the ISO catalogue as published/confirmed. Users should check the ISO catalogue or their national body for any subsequent revisions or confirmations (the ISO record indicates the published 2016 edition and its confirmation status).

Q: Is it part of a series?

A: Yes — ISO 14820 is a multipart series. Part 1 (ISO 14820-1:2016) covers sampling, Part 2 covers sample preparation, and Part 3 (ISO 14820-3:2020) covers sampling of static heaps; these parts are complementary for comprehensive sampling and preparation of fertilizer materials.

Q: What are the key keywords?

A: Fertilizers; liming materials; sampling; sample preparation; test portion; homogenization; laboratory sample; ISO 14820.