Normy

Obsah

ČSN EN 12680-2 This document specifies the requirements for the ultrasonic testing of steel castings (with ferritic structure) for highly stressed components and the methods for determining internal discontinuities by the pulse-echo technique. Highly-stressed means for example: - High material utilization (close to Rp0,2) - High static and cyclic load - For fail-safe assessment, requiring a fracture-mechanic assessment An example for a highly-stressed cast component is a turbine housing, subjected to combined high static, cyclic and thermal load. Purchasers determine if components are highly stressed based on the need for performance or safety. For lower-stressed cast components for general purposes, EN 12680-1 applies. This document is applicable to the ultrasonic testing of steel castings which have usually received a grain-refining heat treatment and which have wall thicknesses up to and including 600 mm. For greater wall thicknesses, special agreements are applicable with respect to test procedure and recording levels. This document does not apply to austenitic steels and joint welds.

Obsah

ČSN EN ISO 2719 This document specifies three procedures, A, B and C, using the Pensky-Martens closed cup tester, for determining the flash point of combustible liquids, liquids with suspended solids, liquids that tend to form a surface film under the test conditions, biodiesel and other liquids in the temperature range of 40 °C to 370 °C. Procedure A is applicable to distillate fuels (diesel, biodiesel blends, heating oil and turbine fuels), new and in-use lubricating oils, paints and varnishes, and other homogeneous liquids not included in the scope of procedures B or C. Procedure B is applicable to residual fuel oils, cutback residuals, used lubricating oils, mixtures of liquids with solids, and liquids that tend to form a surface film under test conditions or are of such kinematic viscosity that they are not uniformly heated under the stirring and heating conditions of procedure A. Procedure C is applicable to fatty acid methyl esters (FAME) as specified in specifications such as EN 14214 or ASTM D6751. This document is not applicable to water-borne paints and varnishes.

Obsah

ČSN EN 12285-4 This document specifies the requirements for metallic shop fabricated shop fabricated cylindrical vertical steel tanks, single and double skin for the aboveground storage of water polluting liquids (both flammable and non-flammable) within the following limits: - from 1250 mm up to 4 000 mm inner tank nominal diameter and, - up to maximum overall length of 6 times the nominal inner tank diameter and - tank possible to be divided from 1 to 5 compartments - for liquids with maximum density of up to 1,9 kg/l and, - with an operating pressure (P0) of maximum 50kPa (0,5 bar (g)) and minimum - 5 kPa (- 50 mbar (g)) and, - where double skin tanks with vacuum leak detection system are used, the cinematic viscosity of the stored media does not exceed 5 x 10-3 m2/s This document is applicable for normal ambient temperature conditions (-40 °C to + 50 °C). Where temperatures are outside this range, additional requirements are taken into account. This document is not applicable to tanks used for storage and/or supply of fuel/gas for building heating/cooling systems, and of hot or cold water not intended for human consumption, nor to loads and special measures necessary in areas subject to risk of earthquakes. This document is not applicable for the storage of liquids having dangerous goods classes listed in Table 1 because of the special dangers involved. Table 1 - List of dangerous goods which are not covered by this standard UN-classification Type of dangerous goods Class 1 Explosives Class 4.2 Substances liable to spontaneous combustion Class 4.3 Substances which in contact with water emit flammable gases Class 5.2 Organic peroxides Class 6.2 Infectious substances Class 7 Radioactive substances, hydrocyanic or hydrocyanic solvent liquids, metal carbons, hydrofluoric acid, bromide liquids OTE - The classifications referred to are those adopted by the United Nations Committee of Experts on the Transport of Dangerous Goods (not to be interpreted as tank classes described in 6.2).

Obsah

ČSN EN 12469-2 This document specifies the specific requirements for class II BSC with respect to design, construction, safety and hygiene. It sets the specific performance criteria for class II BSC for work with biological agents and specifies test procedures with respect to protection of the operator, the environment and product protection including cross-contamination.

Obsah

ČSN EN ISO 1135-5 This document specifies requirements for single use transfusion sets for use with pressure infusion equipment capable of generating pressures. It ensures compatibility with containers for blood and blood components as well as intravenous equipment. This document also provides guidance on specifications relating to the quality and performance of materials used in transfusion sets, to present designations for transfusion set components, and to ensure the compatibility of sets with red cell and plasma blood components. NOTE - In some countries, the national pharmacopoeia or other national regulations are legally binding and take precedence over this document.

Obsah

ČSN ISO 19082 Tato norma je zaměřena na oblast řízení provozu na křižovatkách prostřednictvím světelného signalizačního zařízení (dále jen SSZ), a to pomocí tzv. kooperativního řízení. To pro dynamickou volbu či úpravu signálních plánů v závislosti na dopravní situaci využívá nejen vstupy z dopravních detektorů, ale také vstupy z komunikace vozidlo - infrastruktura (V2I). Hlavním cílem této normy je definovat datové prvky a datové rámce, které jsou přenášeny mezi řadiči SSZ, ostatními moduly na infrastruktuře a dopravními centry za účelem efektivního a optimálního řízení dopravy. Norma definuje datové prvky a datové rámce pro následující typy výměny informací: a) Výměna dat mezi prvky: 1) řadiče SSZ; 2) dopravní centra; 3) ostatní zařízení na infrastruktuře. b) Výměna dat mezi dopravními centry a řadiči SSZ.

Obsah

ČSN EN ISO 17573-2 Tento dokument definuje termíny v oblasti elektronického výběru poplatků (EFC). Tento dokument definuje: - termíny používané v normách týkajících se elektronického výběru poplatků; - termíny obecnějšího použití, které se ve speciálnějším významu používají v normách týkajících se elektronického výběru poplatků. Tento dokument nedefinuje termíny související primárně s jinými oblastmi, které fungují ve spojení s EFC, jako jsou termíny pro inteligentní dopravní systémy (ITS), běžné platební systémy, finanční sektor atd.