Valid

GB/T 40346-2021Equipment for crop protection - Method for measurement of potential spray drift from horizontal boom sprayers by the use of a test bench (English PDF)

植物保护机械水平喷杆喷雾机潜在喷雾漂移试验台测量方法

Preview PDF

This is a limited preview

Buy now to download the full PDF (24 pages)

Need quotation for your management?

Get a formal quotation for GB/T 40346-2021 in 30 minutes.

Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

August 20, 2021

Implementation date

March 1, 2022

Scope

GB/T 40346-2021 is the English-translated version of 植物保护机械水平喷杆喷雾机潜在喷雾漂移试验台测量方法.

GB/T 40346-2021 is the Chinese standard "Equipment for crop protection - Method for measurement of potential spray drift from horizontal boom sprayers by the use of a test bench".

Its scope clause reads: This document specifies a measurement method for measuring spray deposits on horizontal boom sprayers using a test bench. Deposit measurement as potential spray Drift provides a value.

These measurements can be used to compare different settings of the same sprayer. This document applies to suspended, towed and self-propelled horizontal sprayers for field crops, orchard/vineyard weed control and gardens Horizontal boom sprayer used for art crop application.

This document applies to booms that use the same spray device. If it is used for the classification of sprayer spray drift, this document is limited to nozzles Comparison of type, spray pressure and boom height.

Note. Further investigations and tests are underway, considering other parameters used to classify the target (e.g. airflow assist system, forward speed, nozzle spacing, and direction). Its clauses include terms and definitions.

Found what you need?

Document preview — GB/T 40346-2021

National Standard of the People's Republic of China

Classification: B 91

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
Introduction
1 Scope
2 Normative references

1 Scope

This document specifies a measurement method for measuring spray deposits on horizontal boom sprayers using a test bench. Deposit measurement as potential spray

Drift provides a value. These measurements can be used to compare different settings of the same sprayer.

This document applies to suspended, towed and self-propelled horizontal sprayers for field crops, orchard/vineyard weed control and gardens

Horizontal boom sprayer used for art crop application.

This document applies to booms that use the same spray device. If it is used for the classification of sprayer spray drift, this document is limited to nozzles

Comparison of type, spray pressure and boom height.

Note. Further investigations and tests are underway, considering other parameters used to classify the target (e.g. airflow assist system, forward speed, nozzle spacing, and direction).

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations

Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to

This document.

ISO 5681 Plant Protection Machinery Vocabulary (Equipmentforcropprotection-Vocabulary)

3 Terms and definitions

The following terms and definitions defined in ISO 5681 apply to this document.

3.1 Sprayersetup

The combination of nozzle and boom parameters on a given sprayer and sprayer adjustment.

Note. For example, when setting parameters, the nozzle type and model, nozzle spacing, orientation, nozzle height, forward speed, spray pressure and spray deposition auxiliary measures should be considered (Such as adding airflow assistance or occlusion).

3.2 Potential spray drift

The percentage of the initial spray volume that is still suspended in the air after the sprayer passes, that is, during the spraying process, it is easy to drift out due to the action of the airflow

The proportion of spray liquid in the application area.

3.3 Reference spray deposition value referencespraydeposit; RSD

Assuming that the spray under the boom is uniformly distributed, the expected spray deposition in the spraying area is calculated based on the measured forward speed and the spray head flow rate.

The amount of product.

Note. For example, if the application rate is 100L/hm2, the corresponding reference spray deposition value is 1µL/cm2. […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 5681

How to Download GB/T 40346-2021

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.