PI-009: Seed Potato Tuber Inspection
Appendix 2

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2a: Process for Domestic Seed Potato Shipments: SPTQMP

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Flowchart - Process for Domestic Seed Potato Shipments: SPTQMP. Description follows.

Description for Flowchart - Process for Domestic Seed Potato Shipments: SPTQMP

This flowchart describes the process that a grower or a designated representative must follow to ship potatoes under the SPTQMP.

Box 1. Start, proceed to Box 2.

Box 2. Grade, proceed to Box 3.

Box 3. First 0-100 MT graded per lot? Yes, proceed to Box 4. No, proceed to Box 6.

Box 4. Inspect a minimum of 1000 tubers or 0.5% by weight, proceed to Box 5.

Box 5. Complete 1 inspection report, proceed Box 8.

Box 6. Inspect a minimum of 250 tubers per 100 MT or 0.1% by weight, proceed to Box 7.

Box 7. Complete 1 inspection report per 100 MT, proceed to Box 8.

Box 8. Lot meets tuber standard? No, proceed to Box 9. Yes, Proceed to Box 12.

Box 9. Increase inspection sample size to a minimum of 2000 tubers, Proceed to Box 10.

Box 10. Lot meets tuber standard? No, proceed to Box 11. Yes, proceed to Box 12.

Box 11. Re-grade, proceed to Box 4.

Box 12. Shipment delayed more than 30 days? Yes, proceed to Box 4. No, proceed to Box 13.

Box 13. Shipment delayed between 14 and 30 days? Yes, proceed to Box 6. No, proceed to Box 14.

Box 14. Issue RBM or Tags, proceed to Box 15.

Box 15. Shipment may proceed, proceed to Box 16.

Box 16. End

2b: Domestic Seed Potato Inspection Process: SPTQMP

Click on image for larger view
Flowchart - Domestic Seed Potatoes Inspection Process: SPTQMP. Description follows.

Description for Flowchart - Domestic Seed Potatoes Inspection Process: SPTQMP

This flowchart describes the steps that a grower or a designated representative needs to follow to complete a tuber inspection.

For the first 0-100 MT graded per lot

Start

Assemble the required inspection material (Refer to Section 4.0 of PI-009), Draw a random sample of 1000 tubers from at least 5 different locations in the graded lot (each shipment must be sampled).

Note: The sample must be randomly selected (randomly drawn from across the entire volume being sampled). Record the general information on report.

Oversize & undersize verification

Draw a random sub sample of 250 tubers. If oversized or undersized tubers are found, set them aside and record the weight of the portion of oversized/undersized tubers, subsequently incorporate them into the sub-samples and weigh the entire sub sample of 250 tubers. Record result on inspection report.  Return the oversized and undersized tubers and the rest of the sub sample to the original 1000 tubers sample

Scoreable defects

Remove and set aside the tubers with scoreable defects from the 1000 tubers sample. Record result on inspection report. Discard the tubers with scorable defects from the sample.

Internal defects

From the tubers that do not present scorable defects, draw a representative sub sample of 50 tubers.

Note: The evaluation of the internal defects must be done on tubers that do not present scoreable defects (tubers with scoreable defects should be discarded from the main sample before the selection of the sub sample that will be used to assess the internal defects. Cut the tubers from the sub sample and inspect for internal defects. Meets tolerance for internal defects? Yes, Record result on inspection report. No, Increase the sub sample size to at least 200 tubers and inspect for internal defects.

Finish

Subsequent 0-100 MT graded per lot

Start

Assemble the required inspection material (Refer to Section 4.0 of PI-009), Draw a random sample of 250 tubers from at least 5 different locations in the graded lot (each shipment must be sampled).

Note: The sample must be randomly selected (randomly drawn from across the entire volume being sampled).Record the general information on report.

Oversize & undersize verification

If oversized or undersized tubers are found, set them aside and record the weight of the portion of oversized/undersized tubers, subsequently incorporate them into the sub-samples and weigh the entire sub sample of 250 tubers. Record result on inspection report

Return the oversized and undersized tubers to the original 250 tubers sample

Scoreable defects

Remove and set aside the tubers with scoreable defects from the 1000 tubers sample. Record result on inspection report. Discard the tubers with scorable defects from the sample.

Internal defects

Previous

inspection within tolerance for internal defects? Yes, from the tubers that do not present scorable defects, draw a representative sub sample of 25 tubers2. No, from the tubers that do not present scorable defects, draw a representative sub sample of 50 tubers2. Note 2: The evaluation of the internal defects must be done on tubers that do not present scoreable defects (tubers with scoreable defects should be discarded from the main sample before the selection of the sub sample that will be used to assess the internal defects.

Cut the tubers from the sub sample and inspect for internal defects Meets tolerance for internal defects? Yes, Record result on inspection report. No, Increase the sub sample size to at least 200 tubers and inspect for internal defects.

Finish

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