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697248 - ČSN EN ISO 21013-3 - Kryogenické nádoby - Část 3: Bezpečnostní příslušenství pro provoz s nízkými teplotami - Stanovení kapacity a dimenzování | ||
| Název : 697248 - ČSN EN ISO 21013-3 - Kryogenické nádoby - Část 3: Bezpečnostní příslušenství pro provoz s nízkými teplotami - Stanovení kapacity a dimenzování
Označení normy : ČSN EN ISO 21013-3 Katalogové číslo : 500852 Třídící znak : 697248 Účinnost : 2017-01-01 Věstník : 2016.12 Strany : 48 Převzata :vyhlášením ve Věstníku - v angličtině | ||
| Cena : | 438.00 Kč (DPH= 0%), s DPH= 438.00 Kč | |
| 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." | ||