Normy

Obsah

ČSN P CEN/TS 17659 This document gives guidance for the design of a roof waterproofing system mechanically fastened to the structural deck in relation to wind load resistance. This document is intended to be used together with EN 16002 and the relevant clauses of EAD-030351-00-0402-2019. This guideline does not include the seperate fastening requirements of the insulation boards, the securement to upstands, perimeter fastening, flashings or other roof details.

Obsah

ČSN EN ISO 3382-3 Tento dokument stanovuje metodu měření parametrů prostorové akustiky v neobsazených otevřených kancelářích. Stanovuje postupy měření, potřebné přístrojové vybavení, požadované pokrytí, metodu pro hodnocení dat a prezentaci protokolu o zkoušce. Tento dokument popisuje skupinu jednočíselných veličin indikujících charakteristiku prostorové akustiky v otevřené kanceláři za podmínky jedné mluvící osoby. Tyto veličiny se zaměřují na prostorový pokles řeči, zatímco veličiny uvedené v ISO 3382-2 se zaměřují na časový pokles zvuku.

Obsah

ČSN EN 12120 This document is applicable to sodium hydrogen sulfite used for treatment of water intended for human consumption. It describes the characteristics of sodium hydrogen sulfite and specifies the requirements and the corresponding test methods for sodium hydrogen sulfite. It gives information on its use in water treatment.

Obsah

ČSN EN 12121 This document is applicable to sodium disulfite used for treatment of water intended for human consumption. It describes the characteristics of sodium disulfite and specifies the requirements and the corresponding test methods for sodium disulfite. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use (see Annex B).

Obsah

ČSN EN 12174 This document is applicable to sodium hexafluorosilicate used for treatment of water intended for human consumption. It describes the characteristics of sodium hexafluorosilicate and specifies the requirements and the corresponding test methods for sodium hexafluorosilicate. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of sodium hexafluorosilicate (see Annex B).

Obsah

ČSN EN 12175 This document is applicable to hexafluorosilicic acid used for treatment of water intended for human consumption. It describes the characteristics of hexafluorosilicic acid and specifies the requirements and the corresponding test methods for hexafluorosilicic acid. It gives information on its use in water treatment. It also determines the rules relating to safe handling and use of hexafluorosilicic acid (see Annex B).

Obsah

ČSN 75 7840 Tento dokument specifikuje postup pro stanovení atypických mykobakterií ve vodě metodou přímého výsevu na kultivační médium s úpravou, dekontaminací a určením počtu kolonie tvořících jednotek na objem vzorku součtem kolonií. Tento dokument se používá pro vzorky vody, u kterých je stanovení přítomnosti mykobakterií a jejich kvantifikace nutná nebo vhodná, především pro: - teplou vodu, používanou k osobní hygieně zaměstnanců v průmyslu a v podnikatelské činnosti a v domácnostech; - studenou a teplou vodu pro speciální účely ve zdravotnictví (vodu pro oplach endoskopů a technickou vodu pro ohřívače-chladiče používané při kardiotorakálních operacích); pro jinou vodu používanou ve zdravotnických zařízeních, jako je voda oplachová, pro hygienu, procesní; - vodu používanou pro rekreační nebo kosmetické účely; - obecně pro jinou vodu s vysokým předpokladem potenciální expozice osob predisponovaných, s porušenou funkcí respiračního traktu, orgánů a imunity.

Obsah

ČSN EN ISO 5402-1 This document specifies a method for determining the dry or wet flex resistance of leather and finishes applied to leather. It is applicable to all types of flexible leather below 3,0 mm in thickness.

Obsah

ČSN EN ISO 16321-3 This document specifies additional performance and marking requirements for mesh protectors designed to provide protection for the eyes and faces of persons against mechanical hazards such as impacts from flying particles and fragments. The other applicable requirements for mesh protectors and the frames/mountings to which they are intended to be fitted are given in ISO 16321-1. This document also applies to mesh protectors used in educational establishments. This document also applies to those eye and face protectors used for occupational-type tasks that are performed similarly to an occupation, e.g. "do-it-yourself". This document is not applicable to protectors for use against liquid splash (including molten metal), hot solid risks, infrared and ultraviolet radiation. For protection against these hazards suitable additional or alternative protectors according ISO 16321-1 will be needed. This document does not apply to mesh protectors used in sports such as fencing.

Obsah

ČSN EN ISO 9713 This document establishes the characteristics of self-closing aneurysm clips intended for permanent intracranial implantation and specifies requirements for their marking, packaging, sterilization and for labelling and accompanying documentation. In addition, it gives a method for the measurement of closing force. This document is not applicable to malleable clips, or clips intended to be used during the course of surgery and removed before wound closure (temporary clips). NOTE - In this document when not otherwise established, the term "implant" refers to the self-closing intracranial aneurysm clips.

Obsah

ČSN EN ISO 7711-1 This document specifies the general requirements and test methods for diamond rotary instruments used in dentistry, including designation, colour code and grit sizes and a quality control for these instruments. It applies to all types of diamond rotary instruments independent of type and shape with exception to diamond discs, which are specified in ISO 7711-2.

Obsah

ČSN ETSI EN 302 245 V2.2.1 The present document specifies technical characteristics and methods of measurements for transmitting equipment for the Digital Radio Mondiale (DRM) sound broadcasting service operating in the LF band, MF band, HF band and VHF band. NOTE - The relationship between the present document and essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in annex A.