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English Version:
Arabic Version:
How to
In this section we provide technical/practical information that seed sector staff may find useful. It is simple to follow instructions for technical staff in seed production and quality control.
How to No 27: Flow Chart for Standard Operating Procedures in Purity Analysis
Under the ISTA laboratory accreditation system, preparation of detailed Standard Operating Procedures (SOPs) for each of the tests performed in a seed testing laboratory is one of the major criteria for accreditation. SOPs are short and simple working instructions that are prepared in the same sequence that the job is executed in a descriptive writing or flow chart format. In Seed Info No 22 of January 2002 we have explained an example of a descriptive writing format. In this issue, the flow chart format is presented.
SOPs should be kept short, simple, user friendly and preferably prepared by those who do the job themselves using their own working language. They are not the same as the ISTA rules. They are laboratory and seed analyst -specific. They explain the exact way a seed analyst applies the ISTA rules in his specific laboratory circumstances using the available equipments.
Fig 1. Standard operating procedures for purity testing