Configuring sampling plan
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Prerequisites
- Access the menu Registration > Receiving Inspection Form (IP003).
- Inspection report registered.
Presentation
The sampling plan consists of the following elements, defined according to the concepts established in standards NBR 5425 and NBR 5426:
Sampling plan type :
- Simply put : the results from a single sample from an inspection batch are already conclusive in determining its acceptability.
- Double inspection : the inspection of the first sample allows for a decision on acceptance, rejection, or the need for a second sample. When performed, the second sample determines the acceptance or rejection of the batch.
- Multiple : the decision to accept or reject the batch is made after a defined number of samples have been inspected.
Inspection level : defines the ratio between the batch size and the number of samples to be inspected.
Work regime (severity of inspection) :
- Normal : applied at the beginning of the inspection and maintained as long as there is evidence that the product quality meets the specified requirements.
- Severe : used when there is evidence of deterioration in product quality, resulting in a lower acceptance number for the sample.
- Attenuated : applied when there is evidence that the product quality is consistently high.
NQA (Acceptable Quality Level) : indicates the maximum acceptable number of defects in a batch, either as a percentage or as a number per hundred units.
This article demonstrates the configuration of a sampling plan applied to a batch of CA-50 steel bars. Below, you will find a step-by-step guide to performing the operations:
Configure sampling plan
1. Access the menu Registration > Receiving Inspection Form (IP003).
2. In the filter panel, click SEARCH and select an inspection sheet.
3. Click the button 
.
4. Access the Default Configuration tab and then the Sampling Rule section.
5. In the Rule field, select the Sampling plan option.
6. The system will display the following fields for completion: Sampling plan, Inspection level, Work regime, and AQL.
7. Fill in the fields provided to configure the sampling plan according to the desired criteria.
In the Sampling Plan section , the button 
allows you to simulate the application of the sampling plan. To do this, simply fill in the fields in the Simulate Sampling Plan section and click the button 
. The system will highlight the applicable rule for each type of plan (single, double, or multiple) and present a summary with the number of defects allowed for acceptance or rejection of the receipt.
8. Save the information to complete the setup.
Conclusion
With the sampling plan configured, the inspection stage automatically determines the number of samples and the acceptance or rejection criteria.
Additionally, it's possible to configure specific sampling plans for each supplier. For more details, see the article Configuring suppliers.