Normy

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ČSN EN ISO 16396-2 This document specifies the methods of preparation of test specimens and the test methods to be used in determining the properties of polyamide moulding and extrusion materials. It gives the requirements for handling test material and for conditioning both the test material before moulding and the specimens before testing. This document specifies 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. It lists the properties and test methods that are suitable and necessary to characterize polyamide moulding and extrusion materials. 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 viscosity number and tensile modulus given in ISO 16396-1.

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ČSN P CEN/TS 14541-2 This document provides guidance and information for drafting product standards to specify characteristics and test methods for the utilization of thermoplastics recyclates (PVC-U, PVC-C, PE, PP, ABS) in pipes, fittings and ancillaries for thermoplastics piping systems. This document covers recyclates with an agreed specification from all sources. NOTE 1 - This document does not cover characteristics for reworked material. NOTE 2 - This document does not cover recycling processes (e.g. chemical or mechanical). NOTE 3 - This document does not define if recycled material can be used in a specific application. The possible use of recyclates will be defined in the applicable product standard. This document provides guidance about the relevant characteristics to be included in the agreed specification for recyclates. This document is applicable without prejudice to any existing legislation. For the recycling process, the transport, the testing and the use of thermoplastics recyclates, National and/or European regulations (e.g. hygienic aspects) can apply. NOTE 4 - For example, threshold levels for substances of very high concern (SVHC) as defined in the REACH-legislation which can possibly be present in thermoplastic recyclates.

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ČSN P CEN/TS 17778 This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009. However, the present method was not validated on blends. This document specifies a method for the determination of hexavalent chromium (chromium (VI)) in organic and organo-mineral fertilizers. The method described is suitable to quantify the chromium (VI) content in organic and organo-mineral fertilizers down to 2 mg/kg dry matter. The results obtained from this method are strictly dependent on the extraction conditions. Results obtained by using other extraction procedures (extraction solution, pH of the extraction solution, extraction time, extraction temperature etc.) are not comparable with the results produced by the procedure described in this document.

Obsah

ČSN P CEN/TS 17780 This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009. However, the present method was not validated for blends. This document specifies a method for the detection of Salmonella spp. in organic, organo-mineral and inorganic fertilizers. The method is based on EN ISO 6579-1 and its validated alternative methods for the detection of Salmonella spp. in food and feeding stuff. It requires three successive steps: A selective enrichment, an isolation on a chromogenic agar, and if positive a confirmation with a serological test (and if required, a selective media).

Obsah

ČSN P CEN/TS 17781 This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009. However, the present method was not validated for blends. This document specifies a colony-count technique at 44 °C on a solid medium containing a chromogenic ingredient for the detection of the enzyme ß-glucuronidase. The method is based on ISO 16649-2. Strains of Escherichia coli which do not grow at 44 °C and, in particular, those that are ß-glucuronidase negative, such as Escherichia coli O157, will not be detected. Detected microorganisms are presumptively determined ß-glucuronidase-positive Escherichia coli, since some Enterobacteriaceae, in particular Shigella and Salmonella, can also show ß-glucuronidase activity at 44 °C.

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ČSN EN 17605 This document specifies the sample preparation of dry and wet samples of algae and algae products. This document enables laboratories analysing algae samples to report accurate dry weight percentages and to obtain representative samples possible for further examination.

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ČSN P CEN ISO/TS 19392-1 This document specifies minimum requirements and weathering for coating systems for wind-turbine rotor blades.

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ČSN P CEN ISO/TS 19392-3 This document specifies test methods for the determination of resistance of coating systems or tape for wind-turbine rotor blades to rain erosion by using the water jet test.

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ČSN P CEN ISO/TS 19392-2 This document specifies a test method for the determination of resistance of coating systems or tape for wind-turbine rotor blades to rain erosion by using the rotating arm test.

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ČSN EN ISO 19403-1 This document specifies general terms and definitions for wettability. Some general principles are described in Annex A. This document is intended to be used in conjunction with ISO 4618.

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ČSN EN 14175-8 This document specifies the characteristics of fume cupboards, as defined in EN 14175-1, for work with unsealed radioactive materials with specific requirements regarding radiation protection. It does not apply to fume cupboards, glove boxes or hot cells (shielded radiation containment cells which can incorporate fume extraction). The purpose of this document is to set out rules for the design and testing of fume cupboards for work with unsealed radioactive materials, in order to provide guidelines for the manufacturer, planner, installer, operator, assessor and the authorities. This document only covers bench type fume cupboards.

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ČSN EN 13848-3 Tento dokument specifikuje minimální požadavky na měřicí systémy umístěné na strojích pro stavbu a údržbu tratí, které umožňují vyhodnocení kvality geometrie koleje při měření jednoho nebo více pa-rametrů popsaných v normě EN 13848-1. Tento dokument také uvádí přijatelné odchylky od normy EN 13848-1 při použití měření tětivou. Tento dokument se nevztahuje na požadavky pro akceptaci vozidel, kritéria pro akceptaci prací na trati a požadavky na systémy městské dopravy. Tento dokument platí pouze pro systémy uvedené do provozu po vstupu dokumentu v platnost.