Standartų projektų sąrašas

Paieškos frazė

Išplėstinė paieška

Žymuo

Direktyvos

Organizacija

ICS

Technikos komitetas

Užsienio komitetas

Darbo grupė

Etapas

Būsena

Komentavimo data

iki

Rezultatai

prEN ISO 21013-3 Viešoji apklausa

Komentavimo iki data 2025-04-17

Kriogeniniai indai. Kreogeninės paskirties slėgio mažinimo įtaisai. 3 dalis. Talpos ir dydžio nustatymas (ISO/DIS 21013-3:2025)

ISO 21013-3:2016 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. Recommendations for pressure relief devices for cryostats are given in Annex A.

Skaityti, komentuoti projektą Peržiūrėti metaduomenis

EN ISO 14246:2022/prA1 Viešoji apklausa

Komentavimo iki data 2025-04-10

Dujų balionai. Balionų čiaupai. Gamybiniai bandymai ir tikrinimas. 1 keitinys (ISO 14246:2022/DAM 1:2025)

Skaityti, komentuoti projektą Peržiūrėti metaduomenis

prEN ISO 20421-1 Viešoji apklausa

Komentavimo iki data 2025-04-03

Kriogeniniai indai. Dideli kilnojamieji vakuumu izoliuoti indai. 2 dalis. Projektavimas, gamyba, kontrolė ir bandymas (ISO/DIS 20421-1:2025)

This document specifies requirements for the design, fabrication, inspection and testing of large transportable vacuum-insulated cryogenic vessels of more than 450 l volume, which are permanently (fixed tanks) or not permanently (demountable tanks and portable tanks) attached to a means of transport, for one or more modes of transport. This document applies to large transportable vacuum-insulated cryogenic vessels for fluids specified in 3.1 and does not apply to vessels designed for toxic fluids. This document does not include the general vehicle requirements, e.g. running gear, brakes, lighting, etc. NOTE 1 This document does not cover specific requirements for refillable liquid-hydrogen tanks that are primarily dedicated as fuel tanks in vehicles. For fuel tanks used in land vehicles, see ISO 13985. NOTE 2 This document does not cover specific requirements for refillable liquid hydrogen and LNG tanks that are primarily dedicated as fuel tanks in vehicles. For fuel tanks used in vehicles, see ISO 13985.

Peržiūrėti metaduomenis

Būtini slapukai

Statistikos slapukai

El. pašto prenumerata

Išplėstinė paieška

Rezultatai

Greitieji filtrai

Organizacija

Technikos komitetas

ICS