AGRICULTURAL PESTICIDE SPRAYERS 3/1

AGRICULTURAL PESTICIDE SPRAYERS 3/1

FAO Technical Standards

Sprayer Specifications and Test Procedures

PART 1: PORTABLE (OPERATOR-CARRIED) SPRAYERS

Rome

October 1997

Food and Agriculture Organization of the United Nations


ACKNOWLEDGEMENT

This document was prepared by T.L. Wiles and D.G. Sharp of Wiles Agriculture International, with the assistance of Professor G.A. Matthews and Mr. Evan Thornhill, IPARC, and Prof. P.C.H. Miller, Silsoe Research Institute. The valuable contribution and comments of the many international experts from both the public and private sector are also acknowledged.


C O N T E N T S

PART ONE - PORTABLE (OPERATOR-CARRIED) SPRAYERS

SPRAYER SPECIFICATIONS

INTRODUCTION

Specification format

Test procedures

FAO Approved Status

Figure 1 - Component modules

SPECIFICATIONS

LEVER OPERATED KNAPSACK (LK)

MOTORIZED KNAPSACK (MK)

COMPRESSION SPRAYER (CS)

MOTORIZED KNAPSACK MISTBLOWERS (MB)

TEST PROCEDURES

1. SURFACE RETENTION

2. STRAPS AND PADDING ABSORPTION

3. LEAKAGE

4. TANK STRAINER PERFORMANCE

5. TRIGGER ON/OFF VALVE RELIABILITY/ LEAKAGE

6. STRAP DURABILITY

7. SPRAYER PERFORMANCE AND DURABILITY

8. SPRAYER DROP TEST

9. CHEMICAL RESISTANCE

10. LIQUID RETENTION IN THE SPRAYER

11. NOZZLES AND SPRAY QUALITY

12. SPRAY VOLUME DISTRIBUTION PATTERN

13. ENGINE DURABILITY

14. MISTBLOWER, HORIZONTAL THROW

15. COMPRESSION SPRAYER, TANK PRESSURE

16. COMPRESSION SPRAYER, PRESSURE CYCLES