Nekovové materiály

Oblast zaměření: Ropné produkty
Komise : CEN/TC 336 (Bituminous binders)
Původce: CEN
K připomínkám do: 30.04.2024
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This document specifies a method for the determination of the softening point of bitumen and bituminous binders in the range of 28 °C to 150 °C.

The method described also applies to bituminous binders that have been recovered from bituminous mixes, e.g. by extraction according to EN 12697‑3 [1].

The change from mercury thermometers to electronic temperature devices has revealed that the temperature definition in the mercury thermometer has not been precise enough to make a correct, unbiased transfer to electronic devices. Care should be taken for softening points ring and ball above 100 °C as the condition may have changed from previous practice to present days testing equipment. Below approximately 100 °C the difference in temperature readings between electronic and mercury stem thermometer is acceptable compared to the repeatability of this test method.

WARNING — The use of this document can involve hazardous materials, operations and equipment. This document does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.

Oblast zaměření: Trubky z plastů
Komise : CEN/TC 155 (Plastics piping systems and ducting systems)
Původce: CEN
K připomínkám do: 30.04.2024
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This document specifies a test method for determining the leaktightness and the ease of operation of a valve made of thermoplastic material following an impact applied to the operating device.

Additionally, a different procedure of the test on diaphragm valve can be specified by the valve manufacturer.

Oblast zaměření: Plasty
Komise : CEN/TC 249 (Plastics)
Původce: CEN
K připomínkám do: 30.04.2024
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This document defines a system for the classification of recycled plastics based on the available data depth (Data Quality Levels, DQL) and provides guidelines for the labelling of the recyclate type and recycled content in compounds.

It is intended to support parties involved in the use and trading of recycled plastics, explicitly including digital trading platforms.

Oblast zaměření: Plasty
Komise : CEN/TC 249 (Plastics)
Původce: CEN
K připomínkám do: 30.04.2024
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This document applies to unplasticized poly(vinyl chloride) (PVC-U) profiles that are intended to be used for the fabrication of windows and doors in accordance with the EN 14351 series or EN 16034, shutters according to EN 13659 and other construction profiles in accordance with the EN 13245 series. Furthermore, this document is also applicable for profiles used in other PVC-U products, which can include recyclates. This document gives references and specifies general and product-specific design for recycling principles.

NOTE 1       In this document, the term “PVC-U profiles” is used to refer to construction profiles made from PVC-U, PVC-UE, and PVC-U-based natural fibre composites (NFC).

Criteria for the use of materials, process conditions, and recyclability are defined, which are considered during the design process.

This document defines principles to

—    obtain the highest possible share of recyclability of the PVC-U part in the profile, and

—    increase the share of PVC-U recyclate in the profile,

while complying with requirements for the final product, where existent and defined elsewhere. This document establishes flowcharts which help to assess, (i) how recyclability is evaluated and (ii) whether inclusion of rPVC-U is possible.

The following components of the final PVC-U construction product are considered in this document:

—    profiles;

—    reinforcements;

—    gaskets;

—    insulations;

—    coverings.

This document specifies only the technical connection of the profile to other components (such as glazing or hardware) and their impact on the recyclability of the PVC-U profiles. The recyclability of the other components (e.g. glazing, aluminium cover, hardware) is excluded from this document.

NOTE 2       Examples for profiles included in this document and their intended use can be found in Figure 1.

Oblast zaměření: Plasty
Komise : CEN/TC 249 (Plastics)
Původce: CEN
K připomínkám do: 30.04.2024
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This document specifies the main characteristics and associated test methods for assessing of acrylonitrile-butadiene-styrene (ABS) recyclates intended for use in the production of semi-finished/finished products.

It is intended to support parties involved in the use of ABS recyclates (rABS) to agree on specifications for specific and generic applications.

This document does not cover the characterization of plastics wastes, which is covered by the EN 15347 series, neither traceability topics which are covered by EN 15343.