Kemiteknik

Ämnesområden: Träskyddande kemikalier
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 16 dec 2018
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This document specifies an evaporative ageing procedure, applicable to test specimens of wood which have been previously treated with a wood preservative, in order to evaluate any loss of effectiveness when these test specimens are subsequently subjected to biological tests.

Ämnesområden: Träskyddande kemikalier
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 16 dec 2018
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This document specifies a method for the leaching of test specimens of wood which are used in the testing of the biological efficacy of wood preservatives.

This standard is applicable to:

a) the pre-conditioning of test specimens prior to their being subjected to a biological test ; or

b) assessment of loss of effectiveness by comparing the performance in a biological test of treated test specimens subjected to this procedure with others that have not undergone any leaching procedure.

NOTE The method may also be used for pre-conditioning of wood-based panel products which may or may not have received preservative treatment.

Ämnesområden: Träskyddande kemikalier
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 6 jan 2019
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This document specifies a method for the determination of the eradicant action of a surface application of a fast and a slow acting wood preservative product or a deferred acting wood preservative product on timber infested with larvae of Hylotrupes bajulus (Linnaeus).

This method is applicable to:

— organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates; or

— organic water-dispersible formulations, as supplied or as prepared in the laboratory by dilution of concentrates; or

— water-soluble products, for example, salts.

NOTE An ageing procedure cannot be combined with this method.

Ämnesområden: Träskyddande kemikalier
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 6 jan 2019
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This document specifies a method for determining the efficacy of wood preservatives applied to wood by penetration treatment against wood destroying basidiomycetes cultured on a malt extract agar medium.

The method is applicable to formulated products or to their active ingredients.

NOTE This method can be used in conjunction with an ageing procedure, for example EN 73 or EN 84.

Annex A (informative) contains an example of a test report.

Annex B (informative) contains some methods of sterilization.

Annex C (informative) contains information on the test vessels.

Annex D (informative) contains information on test fungi.

Annex E (informative) contains a recommended but non-comprehensive list of optional fungi.

Ämnesområden: Träskyddande kemikalier
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 6 jan 2019
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This document specifies a method of test for determining the natural durability of a timber against wood-destroying basidiomycetes cultured on a malt extract agar medium. The method is applicable to all timber species.

Furthermore this method can be used to test modified or treated wood. The test method described in this part 2 of EN 113 can be applied to specific wood species, commercial supplies of sawn timber, wood-based materials, wood treated with preservatives and modified wood including heat-treated wood. However, this standard is not intended to determine the effectiveness of wood preservatives used to prevent decay.

NOTE 1 Determining the efficacy of wood preservatives used to prevent decay is the scope of EN 113-1.

NOTE 2 This method can be used in conjunction with an ageing procedure, for example EN 73 or EN 84.

Annex A (informative) contains a guidance on sampling.

Annex B (informative) contains some methods of sterilization.

Annex C (informative) contains information on the test vessels.

Annex D (informative) contains an example of a test report.

Annex E (informative) contains information on the test fungi.

Annex F (informative) contains the assessment of the results.

Kommittébeteckning: SIS/TK 484 (Ljussäkerhet)
Källa: CEN
Svarsdatum: den 15 jan 2019
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This document specifies requirements and test methods for the fire safety of candles intended to be burned indoors.

Kommittébeteckning: SIS/TK 484 (Ljussäkerhet)
Källa: CEN
Svarsdatum: den 15 jan 2019
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This document specifies product safety labels for burning indoor candles.

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: ISO
Svarsdatum: den 1 feb 2019
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This standard specifies the preparation methods of the test samples for the qualitative and quantitative analysis of specific chemical substances in fireworks.

Note: the standard covers the following substances to be tested through series of ISO 22863

— hexachlorobenzene;

— lead and lead compounds;

— arsenic or arsenic compounds;

— mercury compounds;

— chlorates;

— white phosphorus;

— picrates or picric acid;

— zirconium with a particle size of less than 40 μm

— content of nitrogen in nitrocellulose

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: ISO
Svarsdatum: den 1 feb 2019
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This standard specifies the test method for the determination of Hexachlorobenzene (HCB) in pyrotechnic compositions by Gas Chromatography.

The limit of detection depends on the substance to be determined, the equipment used, the quality of chemicals used for the extraction of the sample, and the clean-up of the extract.

Under the conditions specified in this International Standard, a limit of detection of 1 mg/kg (expressed as dry matter) can be achieved.

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: ISO
Svarsdatum: den 1 feb 2019
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This standard specifies the test method for determination of the lead content in pyrotechnic compositions of fireworks by flame atomic absorption spectrophotometry, with a minimum detection limit of 10mg/kg.

NOTE It is generally recommended to perform a simple preliminary qualitative test to check whether a quantitative analysis is required. See annex A.

Ämnesområden: Träskyddande kemikalier
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 11 feb 2019
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This document specifies a method for determining the performance of a preservative, applied to the upper surface of the mortar test specimens, in preventing the growth of dry rot through the treated mortar when exposed to the test fungus.

This method is only applicable to masonry fungicides applied as a true solution of the preservative in water or dilute oil in water emulsion. It is not applicable to rods, pastes and other similar preservative types. This method is applicable to preservatives applied to masonry by brushing, spraying and/or injection techniques or mixed into rendering and plastering mortar for masonry.