ISO 12809:2020 PDF

Name: ISO 12809:2020 — Crop protection equipment — Reciprocating positive displacement pumps and centrifugal pumps — Test method
SKU: ISO 12809:2020
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Crop protection equipment — Reciprocating positive displacement pumps and centrifugal pumps — Test method

Название (английский):

ISO 12809:2020

Crop protection equipment — Reciprocating positive displacement pumps and centrifugal pumps — Test method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 22
Дата публикации:: 7 января 2020 г.
Издание:: ISO IS 12809 edition 2 version 1
ICS:: 65.060.40

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Описание (английский):

This document specifies test methods and the environmental conditions for evaluating the performance of reciprocating positive displacement pumps and centrifugal pumps designed for crop protection equipment. This document is applicable when defining the performance of stand-alone pumps or pumps that are installed on a sprayer. Some of the tests indicated in this document are suited only for specific pump types. It is not applicable to pesticide metering pumps for injection systems.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 12809:2020 specifies standardized test methods and environmental conditions for evaluating the performance of reciprocating positive displacement pumps and centrifugal pumps used in crop protection equipment. The standard covers testing of both stand‑alone pumps and pumps installed on sprayers, defining how to measure flow, pressures, priming, power consumption and other performance parameters. It does not apply to pesticide metering pumps for injection systems.

Key topics and technical requirements

Scope and definitions: clear definitions for reciprocating positive displacement pumps, centrifugal pumps, suction and delivery fittings, reference suction pressure, rated pressure, air vent line, etc.

Environmental conditions: testing liquid and ambient temperatures shall be between +10 °C and +45 °C.

Test liquid: clean tap water is the reference medium; any adjuvants or products added must be recorded in the test report.

Measurement accuracy: specified maximum errors for critical parameters (e.g., temperature ±1 °C; suction pressure ±2 kPa; delivery pressure ±1 %; rotating speed ±1 %; flow‑rate tolerances vary by test).

Test bench and hydraulic circuits: detailed arrangements for a main circuit and an extra recirculation circuit to simulate sprayer installation. Separate schemes are described for self‑priming and non‑self‑priming centrifugal pumps.

Performance tests: procedures for determining:

Flow‑rate at reference and variable suction pressures
Priming capacity (with and without recirculation)
Power consumption (measurement at input shaft or calculated from shaft torque and speed using the formula in the standard)
Wear test

Instrumentation and placement: where to measure suction and delivery pressure (at respective fittings), and how to set tank liquid level relative to pump housing.

Practical applications and stakeholders

Who uses ISO 12809:2020:

Pump manufacturers - to verify performance claims and ensure consistent, reproducible test results.

Sprayer and agricultural equipment OEMs - to select and validate pumps for crop protection systems.

Test laboratories and certification bodies - to perform compliant performance and priming tests.

R&D and quality assurance teams - to compare designs, optimize performance and document compliance.

Regulators and procurement agencies - to reference a harmonized test method when specifying acceptance criteria.

Practical benefits:

Reliable comparison of pump performance across models and suppliers.

Reproducible test procedures that reflect installation on a sprayer.

Clear reporting requirements to support product declarations and conformity.

Related standards

ISO 5681 - Equipment for crop protection: vocabulary (referenced for terminology).

ISO/IEC Directives (editorial and development context for ISO documents).

Keywords: ISO 12809:2020, crop protection equipment, reciprocating positive displacement pumps, centrifugal pumps, pump test method, pump priming capacity, flow‑rate, suction pressure, delivery pressure, sprayer pumps.

ISO 12809:2020 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and stakeholders

Related standards

Технические детали

ISO 5681:1981

Equipment for crop protection — Vocabulary

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