GOST 21560.3-82 PDF

Full title and description

GOST 21560.3-82 — "Удобрения минеральные. Метод определения динамической прочности и истираемости" (English: "Mineral fertilizers. Method for determination of dynamic strength and attrition"). The standard specifies a laboratory test method to evaluate the mechanical durability (dynamic strength) and abrasion/attrition behaviour of granular, crystalline and other particulate mineral fertilizers.

Abstract

This short standard defines the sampling, apparatus, test procedure and calculation/processing of results for measuring how fertilizer granules withstand dynamic mechanical action and abrasion (loss of mass or generation of fines). It is intended to support quality control, product specification and comparative evaluation of fertilizer physical stability.

General information

• Status: Active / in force (действует).
• Publication date: Introduced 01 January 1983 (approved 31 May 1982 as GOST 21560.3-82).
• Publisher: Approved by the State Committee for Standards of the USSR (Gosstandart) — currently maintained within the Russian national system of standards (Rosstandart / interstate standard collections).
• ICS / categories: ICS 65.080 — Fertilizers; classification group L19 (methods of testing / packaging / marking).
• Edition / version: Designation GOST 21560.3-82 (original 1982 standard; entered into force 1983). Contains recorded amendments (examples: amendments published 1988 and 2001; later editorial updates noted).
• Number of pages: 3 pages (short-method standard).

Scope

The standard applies to granulated, crystalline and granular mineral fertilizers and establishes a laboratory method for determination of their dynamic strength and resistance to attrition (abrasion, generation of fines) under defined test conditions. It is intended for use in quality control, incoming inspection, factory production checks and comparative testing between fertilizer lots.

Key topics and requirements

• Definition of the test principle (dynamic action to simulate mechanical handling and transport) and the expression of results as loss of mass / percentage of attrition or related strength metrics.
• Requirements and recommendations for sampling and sample preparation to obtain representative test material.
• Specification of apparatus and test equipment (laboratory tumbler/attrition device or equivalent) and test conditions (load, time, rotation or impact parameters as defined in the method).
• Procedure for conducting the test, recovering and sieving material, and quantifying fines or fractured material.
• Calculation and presentation of results (percent attrition/loss, dynamic strength indicators) and interpretation for quality control.

Typical use and users

Used by fertilizer manufacturers (production quality control), independent testing laboratories, agricultural input distributors, research institutes studying fertilizer physical properties, and regulatory bodies that set product quality requirements. Typical applications include acceptance testing of incoming batches, routine factory QC, comparative evaluation of formulations and packaging/handling impact studies.

Related standards

Part of the GOST 21560 series addressing mineral fertilizers; related documents include GOST 21560.0-82 (sampling and sample preparation), GOST 21560.1-82, GOST 21560.2-82 (static strength of granules), GOST 21560.5-82 (method for determining friability/flowability), and other national/interstate standards on fertilizer testing and specification.

Keywords

GOST 21560.3-82; mineral fertilizers; dynamic strength; attrition; abrasion; granules; fertilizer testing; QC; sampling; laboratory method; mechanical durability.

FAQ

Q: What is this standard?

A: GOST 21560.3-82 is a short national/interstate standard that defines a laboratory method for determining the dynamic mechanical strength and attrition (abrasion/fines generation) of mineral fertilizer granules.

Q: What does it cover?

A: It covers sampling, required apparatus, the step‑by‑step test procedure, and calculation/processing of results to quantify attrition and relative mechanical durability of granulated, crystalline and granular fertilizers.

Q: Who typically uses it?

A: Fertilizer producers, laboratory testers, distributors and regulators use the standard for production quality control, acceptance testing and comparative evaluation of physical stability and handling resistance.

Q: Is it current or superseded?

A: The standard is listed as active/in force with recorded amendments; it was approved in 1982 and introduced 01 January 1983. Users should verify the current legal/regulatory status in their jurisdiction or check for any newer national or EAEU technical regulations that may apply.

Q: Is it part of a series?

A: Yes — it is part of the GOST 21560 series addressing mineral fertilizers and related test methods (examples: GOST 21560.0-82, 21560.1-82, 21560.2-82, 21560.5-82).

Q: What are the key keywords?

A: Dynamic strength; attrition; abrasion; fertilizer granules; mechanical durability; testing method; GOST; sampling; laboratory apparatus.