Binder Distributor Accreditation 11 May 2006 RPF Durban

Progress since November 2005 Task team meeting held 9 May Review best practice guideline document Slotted tray versus ‘bakkie’ test Implementation of new accreditation scheme

Tray Bucket versus

15 – 50 % Spray fan Nozzle Output distribution of a single nozzle discharge 10 mm 240 mm 300 mm

Slotted tray vs ‘bakkie’ Slotted tray Volume measurement Low viscosity oil High capex and running cost Sensitive to –Sprayer line up –Spray bar height –Fan angles Poor repeatablity Does not reflect field performance ‘Bakkie’ Mass measurement Test project binder Inexpensive equipment Not sensitive to –Sprayer line up –Spray bar height –Fan angles Good repeatabilty Reflects field performance

Recommendations Replace slotted tray with bakkie test Measure spray angle of nozzles Publish new document as a guideline for certifying and monitoring field performance of BD Approach ECPA and GPTRW to outsource calibration to a national service provider