Normy

Obsah

ČSN EN ISO 20768 This document: - defines the parameters and specifies the standard conditions for a vaping machine for vapour products (as defined in 3.1); - specifies technical requirements for the machine for routine analytical vaping, conforming with the standard conditions stated within Clause 4; - does not specify the vapour product, the vapour product operation or the liquid to be used; - does not specify the means for aerosol trapping, subsequent sample preparation or analyses of components in the trapped aerosol.

Obsah

ČSN EN ISO 24223 This document gives guidance on the sample preparation of fresh cheese, (semi)soft cheese, (semi)hard cheese, processed cheese and whey cheese for physical and chemical analysis, including analysis by applying instrumental methods. This document describes the (sub)sampling, and sample preparation steps carried out after sampling according to ISO 707 | IDF 50 and prior to method-specific sample preparations, e.g. as with analytical methods listed in References. NOTE - Analysis on volatile substances, minor components or allergens can require additional precautionary measures in sample preparation in order to avoid loss of or contamination with one or more target analytes.

Obsah

ČSN EN ISO 6801 This document specifies a method for the determination of the volumetric expansion of rubber or plastics hoses under hydrostatic pressure. This document does not specify the dimensions of the test piece and the test pressure(s) as each of which is specified in the appropriate specification.

Obsah

ČSN EN 17616 This document specifies requirements and test methods for the fire safety of candles intended to be burned outdoors. Sticks wrapped with fuel-soaked materials, such as paper, cardboard or fabric, oil lamps on a stick and products intended to be used professionally to protect vineyards or fruit orchards from frost damages are not covered by this document.

Obsah

ČSN EN 17617 This document specifies safety information for burning outdoor candles and includes requirements on how safety information will be displayed. Sticks wrapped with fuel-soaked materials, such as paper, cardboard or fabric, as well as oil lamps on a stick and products intended to be used professionally to protect vineyards or fruit orchards from frost damages are not covered by this document.

Obsah

ČSN EN ISO 12543-4 Tento dokument stanovuje zkušební metody týkající se odolnosti vrstveného skla a vrstveného bezpečnostního skla pro použití ve stavebnictví proti vysoké teplotě, vlhkosti a záření.

Obsah

ČSN EN ISO 12543-1 Tento dokument definuje termíny a popisuje součásti vrstveného skla a vrstveného bezpečnostního skla pro použití ve stavebnictví.

Obsah

ČSN EN ISO 12543-5 Tento dokument stanovuje rozměry, mezní odchylky a opracování hran vrstveného skla a vrstveného bezpečnostního skla pro použití ve stavebnictví. Tento dokument neplatí pro tabule o ploše menší než 0,05 m2.

Obsah

ČSN P CEN ISO/TS 24283-2 (72 1023) This document specifies the qualification criteria for the person who is responsible for the performance of sampling, testing, measuring, monitoring and installation of equipment (e.g. piezometers, borehole heat exchangers, inclinometers and extensometers) in the framework of geotechnical investigation.

Obsah

ČSN P CEN ISO/TS 24283-3 (72 1023) This document specifies the qualification criteria for enterprises performing sampling, testing, measuring, monitoring and installation of equipment (e.g. piezometers, borehole heat exchangers, inclinometers and extensometers) in the framework of geotechnical investigation.

Obsah

ČSN EN 17435 This document specifies test methods for measuring the impact attenuation of sports surfaces. Three different methods are specified. In Procedure A, a series of tests are undertaken from differing drop heights and the HIC values are plotted, and the Critical Fall Height determined. In Procedure B, a single test is undertaken from differing drop heights and the HIC values are plotted, and the Critical Fall Height determined. In Procedure C a series of tests are made at a fixed drop height and the maximum value of HIC is calculated. This test method is primarily intended for use on both natural and synthetic turf sport surfaces. It may be carried out in a laboratory on test specimens or in situ on installed sports surfaces. This test method may not be suitable for sports surfaces covered by EN 14904.

Obsah

ČSN EN 13286-47 Tento dokument popisuje metodu pro laboratorní stanovení kalifornského poměru únosnosti a okamžitého indexu únosnosti. Zkoušky jsou vhodné pro směsi s maximální velikostí částic do 22,4 mmNP1). Pokud je jako součást zrání zkušebního tělesa ponoření do vody, tento dokument rovněž zahrnuje stanovení vertikálního bobtnání zkušebního tělesa před stanovením kalifornského poměru únosnosti.