---
title: "Item sampling"
slug: "item-sampling"
description: "LS-Quality Control Assurance enhances item sampling with a risk-based approach, ensuring compliance with GAMP 5 for effective quality management."
tags: ["Life Sciences", "Quality Control and Assurance"]
updated: 2026-06-23T17:13:40Z
published: 2026-06-25T10:21:05Z
canonical: "docs.staedean.com/item-sampling"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.staedean.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Item sampling

Life Sciences Quality Control & Assurance provides extended item sampling capabilities following a risk-based approach, in agreement with GAMP 5.

Item sampling capabilities in Life Sciences Quality Control & Assurance include:

- The definition of the [sample unit](/life-sciences/docs/sample-unit), if different from the released product inventory unit.
- The [calculation of the number of sub-batches](/life-sciences/docs/sub-batch-sampling) to be sampled, and the amount of material to be taken from each sub-batch.
- The [number of samples and their quantities](/life-sciences/docs/advanced-item-sampling) based on the total quantity received/produced or the number of sub-batches to be sampled.
- The definition of sample quantity by analysis type. This allows companies with different laboratories to identify the specific quantity to be consumed for the execution of each laboratory test.
- The possibility of reducing the needed sample quantity in case of [reduced testing](/life-sciences/docs/reduced-test-groups).
- The possibility of defining if the sample quantity does not need to be [blocked in inventory](/life-sciences/docs/no-blocking) (that is, physically reserved) against an open quality order.
- The type of sample(s) to be generated and whether the sample quantity must be traced in the system as available on-hand after the sample preparation.

The item sampling calculation is defined in **Life Sciences Quality Control & Assurance > Setup > Quality Control > Item sampling**.

It is possible to assign a [sub batch type](/life-sciences/docs/sub-batch-type) to each item sampling to identify the type of sample (for example, Retention, Identification). Users can select a value in the **Sub batch type** field in the **Sampling quantity** FastTab. In case of "Advanced" quantity specification, the **Sub batch type** can be assigned to each line in the [**Advanced item sampling**](/life-sciences/docs/advanced-item-sampling) form.

Additionally, after setting up item samplings, users need to define the test groups where the item sampling is applicable. This can be done by selecting an item sampling from the **Item sampling** dropdown menu in the **Test groups** form (**Life Sciences Quality Control & Assurance > Setup > Quality Control > Test groups**), or it can be selected when creating a quality association in the **Quality association** form (**Life Sciences Quality Control & Assurance > Setup > Quality Control > Quality association**).

## Related

- [Sample unit](/sample-unit.md)
- [Sub batch sampling](/sub-batch-sampling.md)
- [Advanced item sampling](/advanced-item-sampling.md)
- [No blocking](/no-blocking.md)
- [Reduced test groups](/reduced-test-groups.md)
- [Sub-batch type](/sub-batch-type.md)
- [Quality control setup](/quality-control-setup.md)
- [Life Sciences Quality Control & Assurance](/life-sciences-quality-control-assurance.md)