Kemiteknik

Kommittébeteckning: SIS/TK 243 (Kyl- och värmepumpsanläggningar - Säkerhet)
Källa: CEN
Svarsdatum: den 25 okt 2018
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This document specifies the requirements for portable locating leak detectors and fixed gas detectors for all refrigerants.

Locating detectors used in factories for manufacturing processes are not included in the Scope of prEN 14624.

Ämnesområden: Djurfoder; Kemisk analys
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 30 okt 2018
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This document specifies a method for the determination of organic acids in animal feeding stuffs by Ion

Chromatography with conductivity detection (IC-CD).

The method is intended to be used for the determination of formic acid, lactic acid, propionic acid, citric

acid, fumaric acid and malic acid as active substances in feed additives, premixtures, compound feed and

water and for screening of acetic acid in the same matrices. This method determines the total extractable

concentration of the above mentioned organic acids and their salts.

It is advisable that the user of this standar determine the working range of the method for each organic

acid. The lower limit of the working range depends on the matrix and the interferences encountered. A

working range between 10 [mg/l] and 100 [mg/l] should be achievable.

The method was successfully tested in an inter-laboratory study in concentrations between 0,02 % up to

27 % of the above mentioned organic acids.

NOTE Limitation occurs during simultaneous determination of high concentration of lactic acid and low

concentration of acetic acid. If the ratio of concentration of lactic acid to acetic acid exceeds factor 20, the

determination of acetic acid is not guaranteed.

On the basis of the referred working range, sample weight and extraction volume, limits of quantification

(LOQ), as calculated (Table 1) should be achievable.

Table 1 — Limits of quantification (LOQ)

Organic acid LOQ [mg/kg]

Formic acid 200

Lactic acid 200

Propionic acid 200

Citric acid 200

Fumaric acid 200

Acetic acid 200

Malic acid 200

 

Ämnesområden: Djurfoder; Kemisk analys
Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 30 okt 2018
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This document specifies a method for the determination of benzoic acid and sorbic acid in animal feeding stuffs by high-performance liquid chromatography method with ultraviolet detection (HPLC-UV).

The method is intended to be used for the determination of benzoic acid and sorbic acid as active substances in feed additives, premixtures and compound feed and for benzoic acid in water. This method determines the total extractable concentration of these organic acids and their salts.

It is advisable that the working range of the method is determined for each organic acid by the user of this standard. The lower limit of the working range depends on the matrix and the interferences encountered. It is advisable that a working range between 5 mg/l and 100 mg/l is accessible.

The method was successfully tested in an inter-laboratory study in concentrations between 0,02 % up to 9,0 %.

On the basis of the referred working range, sample weigh and extraction volume, limits of quantification (LOQ), as calculated (Table 1) on the basis of a wavelength of 230 nm, can be achievable.

Table 1 — Limits of quantification (LOQ) at 230 nm Organic acid

LOQ (mg/kg)

Benzoic acid

200

Sorbic acid

200

Kommittébeteckning: SIS/TK 435 (Livsmedel och foder)
Källa: CEN
Svarsdatum: den 30 okt 2018
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This document specifies a high performance liquid chromatographic – tandem mass spectrometry (LC-MS/MS) method for the simultaneous screening and/or determination of the eleven authorized coccidiostats (halofuginone, robenidine hydrochloride, nicarbazin, diclazuril, decoquinate, monensin sodium, salinomycin sodium, narasin, lasalocid sodium, semduramicin sodium and maduramicin ammonium alpha) contents in poultry, cattle and pig feed at additive and cross-contamination levels and of five non-registered coccidiostats (ethopabate, clopidol, ronidazole, dimetridazole and amprolium) at sub-additive levels and for the screening of the prohibited furazolidone antibiotic at sub-additive level, in the same matrices.

The range of application of the method is fit for the purpose of the screening and determination of all eleven coccidiostats at the values set by European legislation, of the non-registered coccidiostats and of the screening of the banned antibiotic.

Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 4 nov 2018
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This European Standard specifies the minimum performance requirements in biological tests for products for curative uses against specific wood destroying organisms. It specifies the biological tests required together with the efficacy criteria to be achieved in each test.

Chemicals against insects can act according to their specific properties within a short time (fast acting) or only after a long period (slow acting or with a deferred effect). Different tests and efficacy requirements are needed for these various types of curative wood preservatives.

This European Standard is applicable to all wood preservative products supplied for application in liquid form for curative uses against attack by wood boring beetles. This European Standard is also applicable for products applied to prevent the growth of the dry rot fungus through masonry.

This European Standard is also applicable to products for curative uses supplied for application as pastes, solids or in capsule form but only where appropriate biological methods of test exist as published European Standards or as normative annexes to this European Standard.

NOTE 1 For re-testing after making variations in product formulation, guidance is given in Annex A.

NOTE 2 This standard is used as a reference document for the evaluation of efficacy of biocidal products PT8 (wood preservatives) in the framework of the European Regulation on Biocidal Products (EU) No 528/2012 (BPR).

This European Standard is not applicable to products used as fumigants.

This European Standard is also not applicable for determining whether specific curative products, used alone or in combination, are effective in conferring long-term protection against attack by wood destroying organisms. Preventive effectiveness can be determined using EN 599-1 but only for products that can be tested using the methods and interpretative procedures defined in EN 599-1.

Annex A (informative) contains a guidance on re-testing after making variations in product formulation.

Annex B (informative) contains some test recommendations for specific curative products against other insect species than Hylotrupes bajulus and Anobium punctatum.

Annex C (informative) contains a guidance for physical chemical properties.

Ämnesområden: Kemisk analys
Kommittébeteckning: SIS/TK 423 (Luftkvalitet)
Källa: ISO
Svarsdatum: den 21 nov 2018
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This part of ISO 6145 gives a brief overview of each of the dynamic techniques which are described in detail in the following parts of ISO 6145. This document provides basic information to support an informed choice for one or another method for the preparation of calibration gas mixtures. It also describes how these methods can be linked to national measurement standards to establish metrological traceability for the composition of the prepared gas mixtures.

Since all techniques are dynamic and rely on constant flow rates, this first part of ISO 6145 describes the calibration process by measurement of each individual flow rate generated by the device.

Methods are also provided for assessing the composition of the generated gas mixtures by comparison with an already validated calibration gas mixture.

This first part of ISO 6145 provides general requirements for the use and operation of dynamic methods for gas mixture preparation. It also includes the necessary expressions for calculating the calibration gas  composition and its associated uncertainty. 

Gas mixtures obtained by these dynamic methods can be used to calibrate or control gas analysers. 

The storage of dynamically prepared gas mixtures into bags or cylinders is beyond the scope of this part of ISO 6145.

Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: CEN
Svarsdatum: den 3 dec 2018
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This document defines various terms relating to the design, construction, primary packaging and testing of fireworks of categories F1, F2 and F3.

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: CEN
Svarsdatum: den 3 dec 2018
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This document establishes a system for dividing fireworks into categories and types. It is applicable to fireworks in categories F1, F2 and F3.

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: CEN
Svarsdatum: den 3 dec 2018
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This document specifies minimum labelling requirements for the article and primary or selection packaging of fireworks. It is applicable to fireworks in categories F1, F2 and F3 according to prEN 15947-2:2018.

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: CEN
Svarsdatum: den 3 dec 2018
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This document specifies test methods. It is applicable to fireworks in categories F1, F2 and F3 according to prEN 15947-2:2018.

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: CEN
Svarsdatum: den 3 dec 2018
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This document specifies requirements for construction, performance and primary or selection packaging of fireworks. It is applicable to fireworks in categories F1, F2 and F3 according to prEN 15947-2:2018.

This document does not apply for articles containing detonative explosives except for black powder or flash composition.

This document does not apply for articles containing pyrotechnic composition that includes any of the following substances:

— arsenic or arsenic compounds;

— hexachlorobenzene;

— mixtures containing a mass fraction of chlorates greater than 80 %;

— mixtures of chlorates with metals;

— mixtures of chlorates with red phosphorus (except when used in Christmas crackers, party poppers or snaps);

— mixtures of chlorates with potassium hexacyanoferrate(II);

— mixtures of chlorates with sulfur (these mixtures are allowed for friction heads only);

— mixtures of chlorates with sulfides;

— lead or lead compounds;

— mercury compounds;

— white phosphorus;

— picrates or picric acid;

— potassium chlorate with a mass fraction of bromates greater than 0,15 %;

— sulfur with an acidity, expressed in mass fraction of sulphuric acid, greater than 0,002 %;

— zirconium with a particle size of less than 40 μm.