SWI 132.1.1 Seed Program
Specific Work Instruction
Official Seed Sampling

17.0 Seed Laboratory Roles

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17.1 Documentation and Sample Verification

When the samples are received, the SSTS will verify that the sampler is an official seed sampler (when required), the sample is properly sealed and is labelled with the required information, and the documentation has the required information and links to the sample and lot. The SSTS will also verify:

  1. for testing and issuance of ISTA certificates (Appendices XII and XIII), the submitted sample size, as a minimum, is that stated in the ISTA Rules. If less than the required minimum sample size is submitted, the laboratory will not accept the sample for testing and will require that the seed lot be sampled again;
  2. the number of containers and the weight of each container equal the declared size of the seed lot. The weight of the lot stated on the application and on the SSF must be the same. Rounding a weight to whole numbers or fewer decimal places is permitted. The laboratory will report the weight of the lot as stated by the applicant;
  3. the weight of the seed lot does not exceed the permissible lot size in the case of a seed lot sampled for Orange International Seed Lot Certificates. When the seed lot exceeds the maximum lot sizes stated in the ISTA Rules, the laboratory will not accept the sample for testing and will require that the seed lot be broken into seed lots of a permissible size and that each seed lot be sampled;
  4. the sampling intensity. If the sampling intensity does not meet the minimum requirement stated in Appendix II, the laboratory will not accept the sample for testing and will require that the seed lot be sampled again;
  5. the type and size of trier used or the method. If the trier is not appropriate for sampling the crop kind submitted, the laboratory will not accept the sample for testing and will require that the seed lot be sampled again;
  6. the mixing and dividing method used to obtain the submitted sample or that the entire composite sample has been submitted for testing.

17.2 Action Request

The laboratory will issue an "Action Request" when:

  1. the sample or the documents submitted do not meet the requirements set out in this SWI or the ISTA Rules;
  2. the information contains discrepancies;
  3. a document and/or a sample is missing.

The classification of non-conformance and the Sample Submission Action Request form can be found in Appendix IV and V of the QSP 132.4 Official Seed Sampler Certification.

17.3 Laboratory Retention of Samples and Documentation

The inspector should note the following information:

  1. EXP samples are retained for one year. For information regarding retention periods for other sample codes, the inspector must contact the SSTS;
  2. documentation is retained for ten years.
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