How to keep a retain without losing the defective stretch
A defect retain must come from the flagged position. A head sample must not stand in for a defect sample. Write the roll number and the metres on the sample.
Cut the retain from the flagged metre and write the roll number and the metres on it. A sheet cut at random from the head of the roll loses the defective stretch. If there is no flag, keep the head and the tail, and write that these are not defect samples.
Why it is judged this way
Three months later the customer brings out the retain and says it was good at the time. If the retain is not that metre, the discussion cannot proceed. The person who cut it and the metres go on the back of the sheet. The sheet and the electronic image use the same number.
What to compare
| What you see | What to call it | What not to do |
|---|---|---|
| The sample comes from the alarm metre | It can be a defect retain | Cut from a place that is easy to cut |
| It is only a head sample | Mark it as a first-article sample | Write it as a defect retain |
| There is no number | Number it before filing | Drop it in the sample cupboard |
At job change or when a roll is opened
- When it alarms, cut at that metre.
- On the back write the roll number, the metres, and the number.
- Use the same number as the electronic image.
