Normy

Obsah

ČSN EN IEC 62570 ed. 2 This practice applies to medical devices and other items that are anticipated to enter the magnetic resonance (MR) environment. The practice specifies the marking of items anticipated to enter the MR environment by means of terms and icons, and recommends information that should be included in the labeling.

Obsah

ČSN EN 12680-3 This document specifies the requirements for the ultrasonic testing of spheroidal graphite cast iron castings and the techniques for determining internal discontinuities by the pulse-echo technique. This document does not apply to ultrasonic testing of the nodularity of spheroidal graphite cast irons. This document does not apply to phased array technique and to transmission technique. NOTE - The transmission technique has insufficient sensitivity to detect the discontinuities found in spheroidal graphite cast iron castings and is used in exceptional cases only.

Obsah

ČSN EN ISO 24181-1 This document describes procedures for the determination of non-rare earth impurities in individual rare earth metals and their oxides through the use of inductively coupled plasma atomic emission spectroscopy (ICP-AES). Magnesium (Mg), aluminum (Al), silicon (Si), calcium (Ca) and iron (Fe) are included as non-rare earth impurity elements, and the measurement ranges for each impurity element are specified. The applicable measurement range (mass fraction %) of magnesium, aluminum, silicon and calcium is from 0,001 to 0,2, and that of iron is from 0,001 to 0,5. The verified measurement ranges in the interlaboratory tests are described later in this document.

Obsah

ČSN EN ISO 15015 This document specifies the requirements and test methods for solid flat extruded sheets of impact-modified acrylonitrile-styrene copolymer materials: - acrylonitrile-butadiene-styrene (ABS), - acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS) (commonly known as AES), and - acrylonitrile-styrene-acrylate (ASA), without fillers or reinforcing materials. This document also applies to ABS, AEPDS and ASA sheet in rolled form. It applies only to thicknesses from 0,25 mm to 20,0 mm.

Obsah

ČSN EN 13245-1 This document establishes a system of designation for profiles made of unplasticized poly(vinyl chloride) (PVC-U) intended to be used for building applications. This system is intended to be used in product specification after the application is specified. NOTE - It is intended to use this system for the designation of PVC-U profiles for information related to technical literature of the manufacturer, not for the marking of the products. This part is applicable to PVC-U profiles of any colour, obtained by a mono-extrusion or a co-extrusion process, with or without surface finishing (e.g. foil, paint or print). This document defines minimum requirements for the surface finishing of PVC-U profiles. Profiles for the management of electrical power cables, communication cables and power track systems used for the distribution of electrical power, profiles for windows or doors and profiles for guttering are not covered by this document.

Obsah

ČSN EN 1793-2 This document specifies the laboratory method for measuring the airborne sound insulation performance of road traffic noise reducing devices in reverberant conditions. It covers the assessment of the intrinsic performance of barriers that can reasonably be assembled inside the testing facility described in EN ISO 10140-2 and EN ISO 10140-4. This method is not intended for the determination of the intrinsic characteristics of airborne sound insulation of noise reducing devices to be installed on roads in non-reverberant conditions.

Obsah

ČSN EN 12469-1 This document specifies the minimum requirements for BSC with respect to design, construction, safety and hygiene and gives general test methods for their verification. The requirements for the different classes are given in the respective parts of EN 12469.