ambient air composition
constituents of atmosphere
Hierarchy#
Ancestors (top) → AAA625 (highlighted) → subclasses and powertype instances. Capped at 12 each; see the full lists in the sections below.
Higher level classes3#
Declared properties6#
mass per unit volume of air
quotient of the volume of oxygen and dry air, all volumes referring to the pressure and the temperature of the gas mixture
quotient of the volume of nitrogen and dry air, all volumes referring to the pressure and the temperature of the gas mixture
quotient of the volume of water vapour and dry air, all volumes referring to the pressure and the temperature of the gas mixture
ratio of the state quantity equal to the sum of the internal energy U of the (ambient air) system and the product of pressure p and volume V of the (ambient air) system, thus H=U+pV to the unit of mass
identification of legally binding editions of directives or standards specifying emission limits for the protection of nature and humans concerning the pollution of air, water and soil
Subclasses#
No subclasses
This class is a leaf — no other classes inherit from it.
Metadata#
- Source document
- IEC 60721-1:1990
- Version
- 1
- Revision
- 4
- Status
- Standard
- Publisher
- IEC
- Responsible committee
- IEC/SC 3D
- Change request
C00115- Dates
- Current version: 2013-07-04
- Current revision: 2023-04-17
Full source data#
Every key from the original .xls export, including multilingual variants, status, publisher, committee, and workbook-specific codes.
Raw properties (16 keys from source .xls) — click to expand
- C002
- C00115
- C011
- IEC
- C016
- Standard
- MDC_P001_5
- 0112/2///61360_4#AAA625
- MDC_P002_1
- 1
- MDC_P002_2
- 4
- MDC_P003_0
- 2023-04-17
- MDC_P003_2
- 2013-07-04
- MDC_P003_3
- 2023-04-17
- MDC_P004.en
- ambient air composition
- MDC_P006_1
- IEC 60721-1:1990
- MDC_P006.en
- constituents of atmosphere
- MDC_P010
- 0112/2///61360_4#AAA650
- MDC_P011
- ITEM_CLASS
- MDC_P012
- IEC/SC 3D
- MDC_P014
- {0112/2///61360_4#AAF901,0112/2///61360_4#AAF902,0112/2///61360_4#AAF903,0112/2///61360_4#AAF904,0112/2///61360_4#AAF999,0112/2///61360_4#AAG151}
Version history4#
IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.