Gummi- och plastindustri

Ämnesområden: Termoplastmaterial
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 5 jul 2022
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This document specifies a method for the determination of vinyl chloride monomer in homopolymer and copolymer resins of vinyl chloride and compounded materials. The method is based on sample dissolution and headspace gas chromatography. Concentrations of vinyl chloride in the range 0,1 mg/kg to 3,0 mg/kg can be determined.

Ämnesområden: Plast: allmänt
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 5 jul 2022
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This document specifies a method for the determination of the density of liquid resins using a pycnometer.

Ämnesområden: Plast: allmänt
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 18 jul 2022
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This document specifies test methods and evaluation criteria by addressing potential ecotoxicological adverse effects on marine organisms. Adverse effects on marine species may be caused by soluble degradation products of plastic materials such as intermediates or remaining residues resulting from the biodegradation of plastic materials that are used in products for marine applications (e.g. nets for fish farming, dolly ropes, floats, buoys, etc.) and which are intentionally disposed to coastal areas, e.g. eulittoral, sublittoral or pelagic zones.
The ecotoxicity testing scheme covers marine organisms from four trophic levels, primary producer, primary and secondary consumer and decomposer:
— toxicity to marine algae,
— toxicity to marine invertebrates,
— toxicity to marine fish,
— toxicity to marine microorganisms.
This document is not suitable for the assessment of adverse effects caused by solid, non-biodegradable plastic materials of any size.

Ämnesområden: Plast: allmänt
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 22 jul 2022
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This standard specifies a method for the rapid permeation of water to an adhesive layer using a specimen with one side open, the secondary bonding the specimens with the adhesive layer that is still moistened, and a shear strength test of the secondary bonded specimen, for the selection of water-resistant adhesives and the determination of suitable surface treatments. It does not assess the water resistance of the actual joint itself, as the distribution of water in the adhesive layer is different. This test procedure does not provide design information.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 4 aug 2022
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This document defines a method of specifying delivery conditions for poly(vinyl chloride) (PVC) recyclates.
It gives the most important characteristics and associated test methods for assessing of PVC recyclates intended for use in the production of semi-finished/finished products.
It is intended to support parties involved in the use of recycled PVC by mechanical recycling to agree on specifications for specific and generic applications.
This document does not cover the characterization of plastics wastes, which is covered by EN 15347, neither treaceability topics which are covered by EN 15343.
This document is applicable without prejudice to any existing legislation.

Kommittébeteckning: SIS/TK 277 (Press- och formverktyg samt fixturdetaljer)
Källa: ISO
Svarsdatum: den 9 aug 2022
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This document specifies the dimensions and tolerances, in millimetres, of ejector sleeves with cylindrical head which are used in compression and injection moulds and in diecasting dies.
It also gives material guidelines and hardness requirements, and specifies the designation of ejector sleeves with cylindrical head.

Ämnesområden: Gummi
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: ISO
Svarsdatum: den 11 aug 2022
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This document specifies the principles and procedures for estimating the thermal endurance of rubbers from the results of exposure to elevated temperatures for long periods.
Two approaches are specified (see Introduction):
— one using the Arrhenius relation;
— the other using the WLF equation.
In this document, the estimation of thermal endurance is based solely on the change in selected properties resulting from periods of exposure to elevated temperatures. The various properties of rubbers change at different rates on thermal ageing, hence comparisons between different rubbers can only be made using the same properties.

Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 11 aug 2022
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This document specifies a method for determining ε‑caprolactam and ω‑laurolactam in polyamides by gas chromatography. It is applicable particularly to the determination of ε‑caprolactam in polyamide 6 and ω‑laurolactam in polyamide 12.
Two variants of the basic method are specified:
— Method A is an extraction method with boiling methanol, and the extract is injected into a gas chromatograph.
— Method B is a method using a solvent, and the solution is injected into a gas chromatograph.

Ämnesområden: Termoplastmaterial
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 11 aug 2022
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1.1 This document specifies a method for the determination of the thermal stability at elevated temperature of compounds and products based on vinyl chloride homopolymers and copolymers (in the following text abbreviated as PVC) which undergo dehydrochlorination (the evolution of hydrogen chloride).
1.2 This document is applicable to the characterization of PVC compounds and products, especially with regard to the effectiveness of their heat-stabilizing systems.
It is applicable to coloured PVC compounds and products where a discolouration test under the action of heat may be unsatisfactory.
1.3 This document is applicable to compounded PVC materials and products. It can be applicable to polymers in powder form under appropriate conditions, to be agreed upon between the interested parties.
This document does not apply to PVC compounds in the form of dry blends, since such materials can be not sufficiently homogeneous.
1.4 This document does not apply to PVC compounds and products which evolve other decomposition products, in addition to hydrogen chloride, at elevated temperatures that can affect the conductivity of water when they are absorbed into it. In this case a method suitable for the determination of chloride ion (Cl−) in the absorbing solution shall be used (see ISO 182-4).
1.5 This document can also be applied to other plastics materials which can evolve hydrogen chloride or other hydrogen halides when heated under the conditions prescribed by the relevant specifications, or as agreed upon between the interested parties.

Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: ISO
Svarsdatum: den 14 aug 2022
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This document provides a framework for the characterization of physical and chemical properties of tyre and road wear particles (TRWP) using published analytical standards. It is applicable to laboratory-generated TRWP and TRWP collected in the environment.
NOTE This framework focuses primarily on published ISO standards, but includes standards published by other entities such as ASTM and AFNOR. A brief summary and justification for each standard required to
characterize the physical and chemical properties of interest are provided.

Ämnesområden: Gummi
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: ISO
Svarsdatum: den 30 aug 2022
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This document specifies accelerated ageing or heat resistance tests on vulcanized or thermoplastic rubbers/thermoplastic elastomers. Three methods are possible:
Method A: air-oven method using a cell-type oven or cabinet oven with low air speed and a ventilation of 3 to 10 changes per hour.
Method B: air-oven method using a cabinet oven with forced air circulation by means of a fan and a ventilation of 3 to 10 changes per hour.
Method C: air-oven method using a cabinet oven with forced air circulation by means of a fan and a ventilation of > 30 changes per hour.
Depending on the influence of the air speed / air exchange on the results, one of the methods should be selected accordingly.

Ämnesområden: Gummi
Kommittébeteckning: SIS/TK 154 (Gummi och gummiprodukter)
Källa: ISO
Svarsdatum: den 30 aug 2022
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This document is applicable to anionic and non-ionic polyacrylamides used for treatment of water intended for human consumption. It describes the characteristics of anionic and non-ionic polyacrylamides and specifies the requirements and the corresponding test methods for anionic and non-ionic polyacrylamides. It gives information on their use in water treatment.