Product
HECHT CPS Containment Sampling Stick
Answer in brief
HECHT CPS is a disposable containment sampling system for lined containers. A lance fixes the sampler to the liner, pierces the connection and lets a sample be withdrawn, sealed and separated. HECHT states a containment duty up to OEB 5, which is a banding statement rather than proof for a specific material and exposure target.
Reviewed July 15, 2026 · Updated August 29, 2026
The HECHT CPS Containment Sampling Stick is a mobile, disposable arrangement for taking a powder sample through the liner of a container. It suits situations where opening the container, or moving material into a separate enclosure, would create an unwanted exposure or contamination route.
How the sampling sequence works
HECHT describes a four-step sequence. An anti-crease ring first smooths the liner. A vacuum lance then fixes the disposable sampler to the liner. The lance pierces the liner so the sample can be removed. The filled sample is sealed and separated.
The sampling interface stays attached to the liner during collection. A disposable product path reduces cleaning between sampling operations and limits cross contamination.
Containment claim and its limits
HECHT states that CPS can be used for containment duties up to OEB 5. OEB is a banding approach, not a universal performance value. A project has to translate the material hazard into a defined exposure target, then show that the complete procedure meets it: attachment to the liner, piercing, withdrawal, sealing, separation and disposal, including foreseeable operator errors.
The related video demonstrates the handling sequence. It does not replace exposure measurement, a site risk assessment or the current manufacturer instructions.
Containment performance is not sample representativeness
The CPS can control the connection through which a sample is withdrawn, but it cannot determine whether that sample represents the lot. The sampling plan must justify the container, location, timing and mass selected. FDA guidance for component sampling calls for representative, scientifically sound plans that consider variability and the confidence required from the result.
Questions for a project review
- Which material and exposure target apply.
- Which container and liner construction will be sampled.
- How much sample is required and from which location.
- How representativeness will be established.
- How the sample will be sealed, labeled and transferred.
- How used components will be contained and disposed of.
Use the current HECHT documentation for product compatibility and operating steps. Develop the sampling plan separately, so the collected material supports the intended analytical decision.
Commissioning evidence
Before routine use, confirm liner compatibility, sample recovery, seal integrity, labeling and transfer to the laboratory. Train operators on the sequence and on recovery from a failed seal or a damaged liner.
Where exposure is critical, include suitable occupational-hygiene verification rather than judging containment from appearance alone.
Engineering visual guide
How the system behaves
These conceptual diagrams connect the operating principle, equipment internals and engineering review points. They are explanatory and not fabrication drawings or a substitute for project-specific calculations.
Engineering infographic
Published functional boundary
Conceptual published functional boundary for HECHT CPS Containment Sampling Stick; use it to structure an engineering review, not as a fabrication drawing or project-specific design.
Engineering infographic
Integration interfaces
Conceptual integration interface map for HECHT CPS Containment Sampling Stick; use it to structure an engineering review, not as a fabrication drawing or project-specific design.
Engineering infographic
Project verification questions
Conceptual project verification workflow for HECHT CPS Containment Sampling Stick; use it to structure an engineering review, not as a fabrication drawing or project-specific design.
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Frequently asked questions
What is HECHT CPS used for?
It removes a powder sample through the liner of a container while the connection stays contained during collection, sealing and separation, so the container never has to be opened for sampling.
Is HECHT CPS reusable?
HECHT describes the product contact sampling arrangement as disposable, which is what limits cleaning and cross contamination between samples. Confirm in the current operating instructions which accessories, such as the lance and anti-crease ring, are reusable.
Does an OEB 5 statement prove suitability?
No. OEB is a banding framework. Suitability needs a defined exposure target for the actual material, compatible container and liner data, a verified procedure and measured evidence covering the complete operation including disposal.
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