Reference details
- Reference
- EN 922:1994
- Official title
- Plastics piping and ducting systems - Pipes and fittings of unplasticized poly(vinyl chloride) (PVC-U) - Specimen preparation for determination of the viscosity number and calculation of the K-value
- Organisation
- CEN
- Publisher status in source
- WithdrawnThis is the status recorded in the source, not a statement that this is the latest edition.
- Source access
- 19 October 2026
Research and application
Begin with the official scope and the product configuration. The title identifies a subject; it does not establish every product, use condition or legal requirement covered by the publication.
Product research routes
- Pressure equipment and fluid systems
Pressure boundaries, fluid characteristics and the interaction of vessels, piping and protective devices.
- Chemicals, plastics and rubber
Substance identity, material properties, sampling and analytical methods across chemical and polymer products.
Questions for the evidence file
- Pressure design basis
- Material traceability
- Joining procedures
- Inspection and protective-device evidence
- Substance and formulation identity
- Sample preparation
Record the exact edition and associated amendments, the assessed object, the evidence examined and the limits of the conclusion. Explore IESQ research for detailed product and standard studies.
Legal citation
No Commission citation record has been linked to this reference in the IESQ index. That is an index result, not a conclusion that the standard is uncited. Consult the relevant Commission list and Official Journal acts.
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