Normy

Obsah

ČSN EN 71-20 This document specifies microbiological cleanliness and preservative efficacy requirements for accessible aqueous media in toys. The requirements in this document apply to all toys that are, contain or are supplied with accessible aqueous materials (e.g. paste, putty, finger paint, liquid or gel). The cleanliness and preservation effectiveness requirements are applicable to a toy as it is initially received by the consumer, in an unopened and undamaged container. This document does not apply to a toy that has been used, has had its packaging opened or is otherwise compromised in a way that would introduce microbiological contamination. This document does not apply to toys and samples which are post-consumer use, since the microbiological limits are inappropriate given, there is no way to establish what conditions the toys have been subject to before testing. This document does not apply to: - materials that are inaccessible during normal use or after reasonably foreseeable abuse; - food; - cosmetics; - components of toys covered by EN 71 13 where; - the component is in scope of the Cosmetic Products Regulation (i.e. Regulation (EC) No 1223/2009 [13]; - the component comprises only recognized food flavours and food ingredients (see relevant legislation, for example Regulation (EC) No 178/2002 [16] ("general food law"), Regulation (EC) No 1334/2008 [15] (flavours), Regulation (EC) No 1333/2008 [14], Commission Regulation (EU) No 231/2012 [18] (food additives) and Regulation (EU) No 1169/2011 (food information to consumers)[17]); - experimental sets covered by EN 71 4. NOTE - Play cosmetics, that are only for use on the toy (e.g. makeup products only for a doll), are not excluded.

Obsah

ČSN EN 18144 This document defines markers of harm in online gambling. It is a minimum set of markers to analyse. The individual indicators can be analysed over additional time spans as well as in excess of those re-quired, and other markers can be added to the analysis as well. In the event that the collection or analysis of data for a limited set of markers is prohibited within a spe-cific jurisdiction (for example, where legislation prevents it), operators can still be compliant with the standard provided that only these markers are omitted, and only for players who fall under that specific jurisdiction. This document does not provide guidelines regarding the interventions to be employed when addressing individuals with gambling issues, nor does it establish predefined thresholds for intervention.

Obsah

ČSN EN ISO 32543-3 This document specifies a method for the measurement of focal spot sizes within the range of 5 µm to 300 µm of X-ray systems up to and including 225 kV tube voltage. This determination is based on the evaluation of an image with a dedicated focal spot that has been radiographically recorded using an edge and evaluated with a digital method. The imaging quality and the resolution of X-ray images depend highly on the characteristics of the effective focal spot, in particular its size and the two-dimensional intensity distribution as seen from the detector plane. For the characterization of commercial X-ray tube types (i.e. for advertising or trade), the nominal values of Annex A are preferred. NOTE - The same procedure can be used at higher kilovoltages by agreement but the accuracy of the measurement can be poorer.

Obsah

ČSN EN IEC 60966-4-4 This part of IEC 60966, which is a Detail Specification, relates to multi-channel semi-rigid cable assemblies composed of type 50-5 semi-rigid coaxial cables with foamed polyethylene dielectric (see Annex A) and connectors such as type 7-16 (IEC 61169-4), type 4.1-9.5 (IEC 61169 11), type N (IEC 61169 16), type S7-16 (IEC 61169-53), type 4.3-10 (IEC 61169 54), type L32 (IEC 63138-4), type 2.2-5 (IEC 61169-66), type NEX10R (IEC 61169-71), type MQ4 (IEC 63138-2) or type MQ5 (IEC 63138-3). It gives subfamily detail requirements and severities. This document applies to the semi-rigid cable assemblies for mobile communication, in particular for the cable assemblies used between main feeder and antennas or between main feeder and equipment system or between remote radio heads and antennas. The operating frequency is up to 6 000 MHz.

Obsah

ČSN EN IEC 60749-7 ed. 3 Tato norma definuje zkoušení a měření obsahu vodní páry a dalších plynů uvnitř kovové, nebo keramické hermeticky uzavřené součástky. Zkouška se používá na měření kvality pouzdření a poskytuje informaci o dlouhodobé chemické stabilitě atmosféry uvnitř pouzdra. Je použitelná pro takto pouzdřené polovodičové součástky, ale používá se převážně pro aplikace, kde se požaduje vysoká spolehlivost jako je vojenská technika, nebo letectví. Tato zkouška je destruktivní.

Obsah

ČSN EN ISO 28079 This document specifies a method for measuring the Palmqvist toughness of hardmetals and cermets at room temperature by an indentation method. This document is applicable to a measurement of toughness, called Palmqvist toughness, calculated from the total length of cracks emanating from the corners of a Vickers hardness indentation, and it is intended for use with metal-bonded carbides and carbonitrides (normally called hardmetals, cermets or cemented carbides). The test procedures specified in this document are applicable for use at ambient temperatures, but can be extended to higher or lower temperatures by agreement. The test procedures specified in this document are also applicable for use in a normal laboratory-air environment. This document is not applicable for use in corrosive environments, such as strong acids or seawater.

Obsah

ČSN EN ISO 2738 This document specifies methods for determining the density (dry density or fully impregnated density), oil content (related to test piece volume and related to open porosity) and open porosity of permeable sintered metal materials. This document applies in particular to porous metal bearings and to structural parts produced by pressing and sintering metal powders.

Obsah

ČSN EN 16663 This document specifies a method for determining the leaching of active ingredients or other compounds from preservative treated wood by a semi-field method for Use Class 3 (outdoor above ground). The preservative treated wood can be tested with or without subsequently surface coating or other water-repellent treatment. The method is applicable to the testing of commercial or experimental preservatives or paint systems applied to timber by methods appropriate to commercial practice.

Obsah

ČSN EN 14078 This document specifies a test method for the determination of fatty acid methyl ester (FAME) content in diesel fuel or domestic heating fuel by mid-infrared (IR) spectrometry and a transmission sample cell, which applies to FAME contents of the three measurement ranges as follows: - range A: for FAME contents ranging from approx. 0,05 % (V/V) to approx. 3 % (V/V); - range B: for FAME contents ranging from approx. 3 % (V/V) to approx. 20 % (V/V); - range C: for FAME contents ranging from approx. 20 % (V/V) to approx. 50 % (V/V). Principally, higher FAME contents can also be analysed if diluted; however, no precision data for results outside the specified range is available at present. This test method was verified to be applicable to samples which contain FAME conforming to EN 14214. Reliable quantitative results are obtained only if the samples do not contain any significant amounts of other interfering components, especially esters and other carbonyl compounds which possess absorption bands in the spectral region used for quantification of FAME. If such interfering components are present, this test method is expected to produce higher values.

Obsah

ČSN EN 17691-1 This document specifies requirements and test methods of valve-actuator assemblies in individual zone control of water-based HVAC applications. This document does not apply to control valves of nominal diameter larger than DN50. This document is applicable to pressure independent and pressure dependent control valve-actuator assemblies of relevant categories: 2-port, 3-port and 6-port valves (if they incorporate a control valve function). Where a certain control loop as a combination of controller and valve-actuator assembly was assessed under EN 15500-1 [3], this document allows the assessment of the performance of combinations of that controller with different valve-actuator assemblies. The tests in this document ensure that valve/actuator assemblies, as components of control loops, can be replaced with products that provide comparable or better performance. In hydronic system, valve-actuator assembly is a component of control loop that controls water flow rate according to the application control demand.