Typ produktu |
Česká technická norma (ČSN) |
Oznaèení zákl. dokumentu |
ČSN EN ISO 21013-3 |
Zmìna/oprava/svazek |
|
Tøídicí znak |
697248 |
Katalogové èíslo |
500852 |
Název dokumentu |
Kryogenické nádoby - Část 3: Bezpečnostní příslušenství pro provoz s nízkými teplotami - Stanovení kapacity a dimenzování |
Anglický název |
Cryogenic vessels - Pressure-relief accessories for cryogenic service - Part 3: Sizing and capacity determination |
Datum vydání |
01.12.2016 |
Datum ukonèení platnosti |
|
Datum úèinnosti |
01.01.2017 |
Vìstník vydání (mìs/rok) |
12/16 |
Vìstník zrušení |
|
Zpùsob vydání |
ve věstníku |
Zpùsob pøevzetí originálu |
vyhlášením |
Bude pøeložena |
Ne |
Použité jazyky |
|
ICS kódy |
23.020.40 - Kryogenické nádoby
|
Subsektor |
|
Deskriptory |
|
Klíèová slova |
|
Harmonizace/Urèení |
Informace o harmonizovaných a urèených normách jsou zveøejnìny v Databázi harmonizovaných norem
|
Zapracované dokumenty |
Oznaèení | Rok vydání |
EN ISO 21013-3 | 2016 |
ISO 21013-3 | 2016 |
|
Zmìny |
|
Opravy |
|
Nahrazuje dokumenty |
Katalogové èíslo | Oznaèení | Rok vydání |
67999 | ČSN EN 13648-3 | 2003 |
|
Byla nahrazena dokumenty |
|
Anotace |
ČSN EN ISO 21013-3 This part of ISO 21013 provides separate calculation methods for determining the required mass flow to be relieved for each of the following specified conditions: - vacuum-insulated vessels with insulation system (outer jacket + insulating material) intact under normal vacuum, outer jacket at ambient temperature, inner vessel at temperature of the contents at the specified relieving pressure; - vacuum-insulated vessels with insulation system (outer jacket + insulating material) intact under normal vacuum, outer jacket at ambient temperature, inner vessel at temperature of the contents at the specified relieving pressure, pressure regulator of the pressure build-up system functioning at full potential; - vacuum or non-vacuum-insulated vessels with insulation system remaining in place, but with loss of vacuum in the case of vacuum-insulated vessels, outer jacket at ambient temperature, inner vessel at temperature of the contents at the specified relieving pressure or vacuum or non-vacuum-insulated vessels with insulation system remaining fully or partially in place, but with loss of vacuum in the case of vacuum-insulated vessels, fire engulfment, inner vessel at temperature of the contents at the specified relieving pressure; - vacuum-insulated vessels containing fluids with saturation temperature below 75 K at 1 bar with insulation system remaining in place, but with loss of vacuum with air or nitrogen in the vacuum space; - vacuum insulated vessels containing fluids with saturation temperature below 75 K at 1 bar with insulation system remaining in place, but with loss of vacuum with air or nitrogen in the vacuum space with fire engulfment; - vessels with insulation system totally lost and fire engulfment. Good engineering practice based on well-established theoretical physical science needs to be adopted to determine the required mass flow where an appropriate calculation method is not provided for an applicable condition. |