The BIS.Net Team
This type of sampling plan is normally used on batches or lots prior to shipping to a customer, to ensure that the outgoing quality matches the specified level for customer acceptance. Several samples are taken randomly, and the number of defectives counted....
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The BIS.Net Team
For a double sampling plans you take a first sample consisting of n items and each item is checked to see if it is defective. The number of defective items is then counted and compared with the first sample acceptance value for the sampling plan....
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The BIS.Net Team
This type of sampling plan is normally used on batches, or lots prior, to shipping to a customer ensuring that the outgoing quality matches the specified level for customer acceptance....
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The BIS.Net Team
This type of sampling plan, as is the AOQL plan, is normally used on batches, or lots prior, to shipping to a customer ensuring that the outgoing quality matches the specified level for customer acceptance....
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The BIS.Net Team
For a double sampling plans you take a first sample consisting of n items and each item is checked to see if it is defective. The number of defective items is then counted and compared with the first sample acceptance value for the sampling plan....
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The BIS.Net Team
This type of sampling plan is normally used on batches, or lots prior to shipping to a customer when rectification is not possible....
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The BIS.Net Team
Instead of taking a sample of n items and counting the number of defectives, a sample of n items is taken, and the number of defects counted. Rectification plans are not applicable for defects sampling plans....
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The BIS.Net Team
Even when a sampling plan has been derived scientifically using BIS.Net Acceptance Sampling, the OC Curve provides additional insights over the complete range of possible defects per 100 units....
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The BIS.Net Team
An OC curve is an important tool for the analyst to assess the protection a given sampling plan provides....
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The BIS.Net Team
Variables acceptance sampling plans are used when quality characteristics are measured on a continuous scale. Variables sampling plans tend to be more efficient than Attributes Sampling plans with a much lower sample size....
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The BIS.Net Team
Most sampling plans, including fraction defectives, are based on specifying criteria at two levels of quality, one at an acceptable level and the other at an unacceptable level. However, these criteria, such as the risk of rejecting a good batch and accepting a bad batch, only apply at the two specified levels....
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The BIS.Net Team
This type of sampling plan protects against the receipt, or release of lots with excessive defectives. Defectives are items where measurements fall outside specification limits. For example moisture content may be specified for a delivery of a raw material....
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The BIS.Net Team
Most sampling plans, including fraction defectives, are based on specifying criteria at two levels of quality, one at an acceptable level and the other at an unacceptable level. However, these criteria, such as the risk of rejecting a good batch and accepting a bad batch, only apply at the two specified levels....
Continue Reading
The BIS.Net Team
Variables acceptance sampling plans are used when quality characteristics are measured on a continuous scale. Variables sampling plans tend to be more efficient than Attributes Sampling plans with a much lower sample size....
Continue Reading