ISO 22856:2008 PDF

Name: ISO 22856:2008 — Equipment for crop protection — Methods for the laboratory measurement of spray drift — Wind tunnels
SKU: ISO 22856:2008
Price: 25 EUR
Availability: InStock

Equipment for crop protection — Methods for the laboratory measurement of spray drift — Wind tunnels

Название (английский):

ISO 22856:2008

Equipment for crop protection — Methods for the laboratory measurement of spray drift — Wind tunnels

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 5 ноября 2008 г.
Издание:: ISO IS 22856 edition 1 version 1
ICS:: 65.060.40

Тип поставки:

Full version210 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:3 раб. дн. (перевод)

Цена:210 €

Описание (английский):

ISO 22856:2008 establishes general principles for the measurement of spray drift potential in wind tunnels under controlled laboratory conditions. ISO 22856:2008 is applicable where comparative assessment or classification of the relative spray drift potential from spray generators (e.g. nozzles) or spray liquids is needed.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 22856:2008 - "Equipment for crop protection - Methods for the laboratory measurement of spray drift - Wind tunnels" defines general principles for measuring spray drift potential in controlled wind-tunnel conditions. The standard is intended for comparative assessment or classification of the relative spray drift potential from spray generators (for example, nozzles) or spray liquids. It provides test layout, sampling procedures, environmental controls and calculation guidance for laboratory evaluation of spray drift using wind tunnels.

Key Topics

Scope and purpose: Laboratory measurement of airborne and sedimenting spray drift to compare spray generators or formulations.

Wind tunnel requirements: Uniform velocity profile with maximum local variability 5% and degree of turbulence ≤ 8% in the measurement zone; commonly used nominal air speed 2 m·s⁻¹; minimum working section dimensions for field-type sprayers (height ≥ 1 m, width ≥ 2 m).

Sampling and collectors: Use of passive samplers (commonly PE or PTFE sampling lines, ~1.98–2.00 mm diameter) arranged in vertical and horizontal arrays; minimum 5 samplers for vertical and horizontal profiles; vertical spacing ≤ 0.1 m, horizontal spacing ≤ 1 m and downwind sampling between 2 m and 5 m.

Test controls: Humidity (reproducible classification at 80 ± 5%), air temperature (commonly 20 ± 1 °C), maximum instrumentation errors specified for air speed (0.1 m·s⁻¹), temperature (1 °C) and relative humidity (5%).

Measurement outputs: Vertical airborne spray profile and horizontal sedimenting spray profile, quantified typically by tracer recovery using solvent extraction and analytical calibration.

Operational details: Minimum spray time 5 s, tracer/surfactant guidance (surfactant commonly 0.1–0.5%), measurement of liquid physical properties (dynamic surface tension at 20 ms, viscosity).

Applications

Comparative testing and classification of nozzle drift potential for manufacturers and R&D teams.

Laboratory evaluation of spray formulations to inform low-drift product development.

Independent test laboratories and certification bodies performing drift testing for regulatory compliance.

Environmental risk assessment and modelling: results can be used to estimate downwind buffer distances (e.g., to protect watercourses and sensitive areas) and to select low-drift equipment for precision agriculture.

Research into droplet behavior, spray mitigation technologies and spray application best practices.

Related Standards

ISO 5682‑1 - Test methods for sprayer nozzles (patternator and nozzle characterization).

ISO 25358 - Droplet-size spectra from atomizers - Measurement and classification.

ISO 22856:2008 is essential for anyone involved in spray drift testing, nozzle/manufacturer product development, regulatory testing, or environmental protection related to pesticide application.

ISO 22856:2008 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

SIST ISO 5682-1:2018

Equipment for crop protection - Spraying equipment - Part 1: Test methods for sprayer nozzles (ISO 5682-1:201…

ISO 25358:2018

Crop protection equipment — Droplet-size spectra from atomizers — Measurement and classification

ISO 8689-1:2000

Water quality — Biological classification of rivers — Part 1: Guidance on the interpretation of biological qu…

ISO/ASTM51540-04(2012)

Standard Practice for Use of a Radiochromic Liquid Dosimetry System (Withdrawn 2020)

ISO/ASTM51204-04

Standard Practice for Dosimetry in Gamma Irradiation Facilities for Food Processing (Withdrawn 2013)

ISO/ASTM51431-05

Standard Practice for Dosimetry in Electron Beam and X-Ray (Bremsstrahlung) Irradiation Facilities for Food P…

ISO/ASTM52628-20e1

Standard Practice for Dosimetry in Radiation Processing

ISO/ASTM52921-13(2019)

Standard Terminology for Additive Manufacturing—Coordinate Systems and Test Methodologies