Gummi- och plastindustri

Ämnesområden: Lim
Kommittébeteckning: SIS/TK 162 (Lim och limningsteknik)
Källa: CEN
Svarsdatum: den 21 feb 2019
Se merSe mindre
 

This document specifies a series of methods for the determination of peel adhesion properties of self adhesives tapes.

This document contains:

— Method 1: Self adhesive tapes – Measurement of peel adhesion from stainless steel at an angle of 180°;

— Method 2: Self adhesive tapes – Measurement of peel adhesion from its own backing at an angle of 180°;

— Method 3: Self adhesive tapes – Measurement of peel adhesion of double sided and transfer tapes at an angle 180°;

— Method 4: Self adhesive tapes – Measurement of adhesion of the liner to an adhesive tape at an angle of 180°.

Annexes A and B specify further variations in the testing protocol according to specific conditions.

A guide to the use of these methods is given in Table 1.

Ämnesområden: Lim
Kommittébeteckning: SIS/TK 162 (Lim och limningsteknik)
Källa: CEN
Svarsdatum: den 21 feb 2019
Se merSe mindre
 

This document specifies a series of methods for the determination of the ability of a pressure sensitive tape to remain adhered under a constant load applied parallel to the surfaces of the tape and substrate.

This document contains:

— method A: Self adhesive tapes – Measurement of shear adhesion to a vertical standard steel panel;

— method B: Self adhesive tapes – Measurement of shear adhesion to a vertical panel covered with NIST SRM 1810A1) standard fibreboard;

— method C: Self adhesive tapes – Measurement of shear adhesion to a vertical panel covered with a fibreboard agreed upon by the buyer and seller;

— method D: Self adhesive tapes – Measurement of shear adhesion of filament reinforced tape applied to a horizontal standard steel panel;

— method E: Self adhesive tapes – Measurement of shear adhesion of filament reinforced tape applied to a horizontal panel covered with NIST SRM 1810A1) standard fibreboard;

— method F: Self adhesive tapes – Measurement of shear adhesion of filament reinforced tape applied to a horizontal panel covered with a fibreboard agreed upon by the buyer and seller;

— method G: Self adhesive tapes – Measurement of shear adhesion to a vertical standard steel panel at elevated temperature after a 10 min dwell time.

Ämnesområden: Lim
Kommittébeteckning: SIS/TK 162 (Lim och limningsteknik)
Källa: CEN
Svarsdatum: den 21 feb 2019
Se merSe mindre
 

This document specifies methods to measure the breaking strength and elongation at break of a self adhesive tape when it is subjected to a tensile force sufficient to cause it to break.

These test methods describe a procedure for testing 12 mm or 24 mm wide samples cut from supplied rolls of self adhesive tapes. Alternatively rolls of self adhesive tape up to 50 mm wide can be directly tested in their original width. In these circumstances the practical breaking strength and elongation will be typical of the manufacturer’s cut edges. When newly cut sample pieces are tested, because of the better cutting of the edges, the results can be higher than would be found on commercial tape.

Ämnesområden: Plast: allmänt
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 10 mar 2019
Se merSe mindre
 

This document specifies a laboratory test method to determine the degree and rate of aerobic biodegradation level of plastic materials. Biodegradation is determined by measuring the CO2 evolved by the plastic material when exposed to marine sediments sampled from a sandy tidal zone and kept wet with salt-water under laboratory conditions.

This test method is a simulation under laboratory conditions of the habitat found in sandy tidal zone that, in marine science, is called eulittoral zone.

The conditions described in this International Standard may not always correspond to the optimum conditions for the maximum degree of biodegradation to occur.

Deviations from the test conditions described in this International Standard shall be justified in the test report.

Kommittébeteckning: SIS/TK 556 (Betongkonstruktioner)
Källa: ISO
Svarsdatum: den 11 mar 2019
Se merSe mindre
 

This part of ISO 10406 specifies test methods applicable to unidirectional carbon fibre-reinforced polymer (CFRP) strips as external-bonded reinforcements on the concrete substrate. This standard shall be applicable for the CFRP strips that consist of carbon fibre and thermoset resin, manufactured by pultrusion method, has a higher carbon fibre fraction such as over 60 percent and whose thickness is within 3 mm. Also, the test piece for determining tensile properties shall be cut down from CFRP strips along to CFRP strips axis and have bonded anchorage block at the both ends of the test piece.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 16 mar 2019
Se merSe mindre
 

This document specifies the characteristics of cladding profiles and tiles made from cellulose-based materials and thermoplastics, usually called wood-polymer composites (WPC) or natural fibre composites (NFC), for external use.

This document is applicable to extruded profiles but also to tiles manufactured by other plastics processing techniques, e.g. injection moulding.

It is not applicable to support rail profiles, cover strip profiles and fastener devices.

This document also specifies assessment methods, provisions for the assessment and verification of constancy of performance (AVCP) of these products and includes requirements for marking.

Reprocessed and/or recycled materials can be used for manufacturing the components which comply with the requirements of this part of EN 15534.

NOTE 1 WPC materials are recyclable materials which can be treated in a material recovery process intended to save resources while minimizing harmful emissions into air, water and soil as well as their impacts on human health.

NOTE 2 A scheme for the characterization of plastics waste is given in EN 15347 and guidelines for the recovery and recycling are given in ISO 15270.

Ämnesområden: Termoplastmaterial
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 4 apr 2019
Se merSe mindre
 

1.1 This document establishes a system of designation for polyetheretherketone (PEEK) moulding and extrusion materials which may be used as the basis for specifications. Polyetheretherketone polymer chains are composed of phenylene rings linked in (1,4) position by a sequence of two ether groups followed by one ketone group.

1.2 The grades of PEEK plastics are differentiated from each other by a classification system based on appropriate levels of the designatory properties

a) melt viscosity or melt volume-flow rate,

b) tensile modulus,

c) tensile strength

and on information about the intended application and/or method of processing, important properties, additives, colorants, fillers and reinforcing materials.

1.3 The designation system is applicable to all polyetheretherketones.

It applies to materials ready for normal use in the form of powder, granules or pellets, unmodified or modified by colourants, fillers, reinforcements or other additives.

1.4 It is not intended to imply that materials having the same designation necessarily give the same performance. This document does not provide engineering data, performance data or data on processing conditions which may be required to specify a material for a particular application and/or method of processing.

If such additional properties are required, they shall be determined in accordance with the test methods specified in ISO 23153-2, if suitable.

1.5 In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements may be given in data block 5 (see Clause 4.1).

Ämnesområden: Termoplastmaterial
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 4 apr 2019
Se merSe mindre
 

This document specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polyetheretherketone (PEEK) moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given.

Procedures and conditions for the preparation of test specimens and procedures for measuring properties of the materials from which these specimens are made are also given. Properties and test methods that are suitable and necessary to characterize PEEK moulding and extrusion materials are listed.

The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this document, as are the designatory properties specified in ISO 23153-1.

In order to obtain reproducible and comparable test results, it is necessary to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.

Ämnesområden: Lim
Kommittébeteckning: SIS/TK 162 (Lim och limningsteknik)
Källa: CEN
Svarsdatum: den 4 apr 2019
Se merSe mindre
 

This International Standard specifies a method for the determination of the shear strength of anaerobiccuring liquid adhesives used for retaining cylindrical assemblies, pin-and-collar type, or for locking and sealing threaded fasteners.

This test method can also be used for other adhesives.

The test is for ranking and quality control of adhesives. The result does not necessarily reflect the performance of the materials in service and the test is not suitable for providing numerical data for design purposes.

NOTE Numerical design data can be obtained from tests using the materials and configurations used in the actual structure.

Ämnesområden: Termoplastmaterial
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 7 apr 2019
Se merSe mindre
 

This part of ISO 21304 specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of PE-UHMW moulding and extrusion materials. Requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing are given here.

Procedures and conditions for the preparation of test specimens and procedures for measuring properties of the materials from which these specimens are made are given. Properties and test methods which are suitable and necessary to characterize PE-UHMW moulding and extrusion materials are listed.

The properties have been selected from the general test methods in ISO 10350-1. Other test methods in wide use for or of particular significance to these moulding and extrusion materials are also included in this part of ISO 21304, as are the designatory properties specified in ISO 21304-1.

In order to obtain reproducible and comparable test results, it is necessary to use the methods of preparation and conditioning, the specimen dimensions and the test procedures specified herein. Values determined will not necessarily be identical to those obtained using specimens of different dimensions or prepared using different procedures.