ESTA is the standard of ESA (European Seed Association) to assure quality during the treatment process of treated seeds with agrochemicals.

ESTA is a standard supporting seed industries. It ensures that the seed treatment process and the treated planting seeds, meet legislation and industry standard requirements.

ESTA ensures that treating seeds combines accurate application and the minimum requirements of active ingredients, so that maximum effectiveness may be achieved with minimal environmental impact.

The adoption of this quality assurance system is a strategic decision for an organisation. The ESTA standard has been designed to be compatible with ISO 9001 (Quality Management Systems - Requirements), ISO / IEC Guide 65 - ISO / EN 45011 (Conformity assessment — Requirements for bodies certifying products, processes and services).

ISO 9001
The Quality Standard ISO 9001 defines the requirements for a quality management system, when an organisation:
a) needs to demonstrate its ability to consistently provide products and services that meet customer and applicable statutory and regulatory requirements, and
b) aims to enhance customer satisfaction through the effective application of the system, including processes for the improvement of the system and the assurance of conformity to customer and applicable legal and regulatory requirements.

All requirements of standard ISO 9001 are general and intended to be applicable to any organisation, regardless of its type or scale, or the products or services it provides.

ISO 9001 was first published in 1987 by the International Standardisation Organisation, an international Agency comprising national standardisation organisations from more than 160 countries. The current version of the ISO 9001 standard was released in September 2015.