In the pharmaceutical industry, sampling plans are used to ensure that products meet certain quality standards. There are several types of sampling plans used in this industry, including:
1. Attribute Sampling Plan: This is a sampling plan that focuses on the presence or absence of a particular attribute. For example, the presence or absence of a defect in a product.
2. Variables Sampling Plan: This is a sampling plan that focuses on numerical measurements of a particular characteristic. For example, the weight or volume of a product.
3. Acceptance Sampling Plan: This is a sampling plan that is used to determine whether a batch of products should be accepted or rejected based on a predetermined set of criteria.
4. Sequential Sampling Plan: This is a sampling plan that allows for the decision to accept or reject a batch of products to be made as soon as possible, based on a predetermined set of criteria.
5. Double Sampling Plan: This is a sampling plan that involves two separate samples being taken from a batch of products. The first sample is used to make an initial decision on whether to accept or reject the batch, while the second sample is used to confirm the decision made based on the first sample.
6. Multiple Sampling Plan: This is a sampling plan that involves taking several samples from a batch of products over time. The results of each sample are used to make a decision on whether to accept or reject the batch.