ISO 20475:2018 ガスボンベ—ボンベバンドル—定期的な検査とテスト | ページ 6

3.1

compressed gas

gas, which, when packaged under pressure for transport, is entirely gaseous at −50 °C

Note 1 to entry: This category includes all gases with a critical temperature less than or equal to −50 °C.

[SOURCE:ISO 10286:2015, 705]

3.2

liquefied gas

gas, which, when packaged under pressure, is partially liquid (or solid) at temperatures above −50 °C

[SOURCE:ISO 10286:2015, 706, modified — Note 1 to entry has been added.]

3.3

dissolved gas (under pressure)

gas, which when packaged under pressure for transport, is dissolved in a liquid phase solvent

[SOURCE:ISO 10286:2015, 709]

3.4

main valve

valve which is fitted to the manifold (3.11) of a bundle (3.5) , isolating it from the main connection(s) (3.12)

[SOURCE:ISO 10286:2015, 267, modified — “battery vehicle/battery wagon/MEGC” has been deleted.]

3.5

bundle of cylinders

cylinder bundle

assembly of cylinders (3.7) that are fastened together and which are interconnected by a manifold (3.11) and transported as a unit having a total water capacity not exceeding 3 000 l except that bundles intended for the transport of toxic gases shall be limited to 1 000 l total water capacity

Note 1 to entry: In ISO/TC 58 standards, the term “bundle” is frequently used for simplification.

[SOURCE:ISO 10286:2015, 204]

3.6

frame

structural and non-structural members of a bundle (3.5) that combine all other components together, while providing protection for the bundle's cylinders (3.7) , valves and manifold (3.11) and which enable the bundle to be transported

[SOURCE:ISO 10286:2015, 264]

3.7

gas cylinder

cylinder

transportable pressure receptacle of a water capacity not exceeding 150 l

Note 1 to entry: In ISO/TC 58 standards, the term “gas cylinder” is frequently used for clarification.

[SOURCE:ISO 10286:2015, 201]

3.8

cylinder valve

valve that is fitted into a cylinder and to which a manifold (3.11) is connected in a bundle (3.5)

3.9

cylinder fitting

component with no gas shut-off capability that serves as a method for connecting a bundle's manifold (3.11) to its individual cylinders when cylinder valves (3.8) are not fitted to the cylinders

3.10

fitting

connecting piece, of one or more parts having no shut-off function

3.11

manifold

piping system for connecting pressure receptacle(s) valves or cylinder fittings (3.9) to the main valve(s) (3.4) or the main connection(s) (3.12)

[SOURCE:ISO 10286:2015, 265]

3.12

main connection

means of making a gas connection to a bundle (3.5)

[SOURCE:ISO 10286:2015, 266, modified — “battery vehicle/MEGC” has been deleted.]

3.13

tare

<general> weight of the pressure receptacle when empty, including accessories fitted as presented for filling

[SOURCE:ISO 10286:2015, 745]

3.14

maximum gross weight

<cylinder bundle> sum of the tare (3.13) of the bundle (3.5) and the maximum permissible filling weight

Note 1 to entry: To be understood as “maximum gross mass” as per regional transport regulations.

[SOURCE:ISO 10286:2015, 743, modified — Note 1 to entry has been added.]

3.15

test pressure

required pressure applied during a pressure test

3.16

working pressure

<compressed gas> settled pressure of a compressed gas (3.1) at a uniform temperature of 288 °K (15 °C) in a full bundle (3.5)

Note 1 to entry: In North America, service pressure is often used to indicate a similar condition, usually at 21,1 °C (70 F).

Note 2 to entry: In East Asia, service pressure is often used to indicate a similar condition, usually at 35 °C.

[SOURCE:ISO 10286:2015, 736, modified — “gas cylinder” has been replaced by “bundle”.]

3.17

competent person

person who has acquired through training, qualifications or experience, or a combination of these, the knowledge and skills enabling that person to perform a specified task

3.18

filling pressure

pressure to which a cylinder (3.7) is filled at the time of filling

Note 1 to entry: It varies according to the gas temperature in the cylinder, which is dependent on the charging parameters and the ambient conditions. It is normally higher than the working pressure (3.16) (because of the heat of compression) and always less than the test pressure (3.15) .

[SOURCE:ISO 10286:2015, 734]

3.19

inspection body

independent inspection and testing body approved by the competent authority (3.20)

[SOURCE:ISO 10286:2015, 621]

3.20

competent authority

any body or authority designated or otherwise recognized as such for any purpose in each country by its government

Note 1 to entry: “Competent body” is not to be used; UN Model Regulations ^[10] only use “competent authority” and “inspection body” (3.19).

[SOURCE:ISO 10286:2015, 620]