What technical standards must bitumen emulsion sprayers meet for use in South African road projects?

Sprayers must meet practical performance requirements enforced by project specifications: accurate and repeatable application rate, uniform transverse distribution, stable pressure control, and correct nozzle configuration for the specified grade. They must also provide safe handling, spill control, and cleaning procedures compatible with emulsions. Because project standards can vary by authority and contract, the correct method is to match sprayer capability to the specification requirements for tack coat, prime, or surface dressing. Ask for calibration reports, bar distribution test results, and evidence of successful use on similar projects under local conditions.