Chủ đề: Energy
Energy
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Các thuật ngữ liên quan đến Energy
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lubricity
ability of a product to reduce wear and friction, other than by its purely viscous properties
ISO 6743-15:2007(en), 3.1
central control
operation of several control functions on a plant from one central point
ISO 1213-1:2020(en), 11.1.4
draw rate
water draw rate
Rate at which hot water is withdrawn from a system at a specified time.
ISO 9459-1:1993(en), 3.20
coalbed gas content
under natural conditions, quantity of gas contained in the unit mass of coal
Note 1 to entry: It is the sum of lost gas, measurable gas and residual gas.
ISO 18871:2015(en), 2.1
neutron flux
<img class="math" alt="mml_m13" src="/obp/graphics/std/iso_std_iso_14152_ed-1_v1_en/mml_m13.png">
[SOURCE: IAEA Safety Series No. 76:1986]
Note 1 to entry: The SI unit of the neutron flux is s−1.
ISO 14152:2001(en), 3.2.11
risk criteria
terms of reference against which the significance of a risk
(3.2.2) is evaluated
Note 1 to entry: Risk criteria are based on organizational objectives, and external and internal context.
Note 2 to entry: Risk criteria can be derived from standards, laws, policies and other requirements.
[SOURCE: ISO/IEC Guide 73:2009, 3.3.1.3]
ISO 21912:2021(en), 3.2.6
diffusive radon surface exhalation rate
<b><i>E</i></b>
value of the activity concentration of radon atoms that leave a material per unit surface per unit time
Note 1 to entry: For the purpose of this document, only the diffusion transport through the sample is taken into account. The diffusive radon exhalation rate is given by the following formula (Fick's law):
| where | ||
| E(x) | is the distribution function along the axis "x" of the radon exhalation rate in the sample, in Becquerel per square metre per second; | |
| C(x) | is the distribution function along the axis "x" of the radon activity concentration in the sample, in Becquerel per cubic metre; | |
| D | is the radon diffusion coefficient of the sample, in square metre per second; | |
| x | is the coordinate on axis "x" (the axis is directed along radon transport and perpendicular to the sample surface), in metre. | |
ISO/TS 11665-13:2017(en), 3.1.6
negative pressure system
regulated ventilation system, which ensures a negative pressure between the ventilated area and an adjoining zone or the external ambient pressure
ISO 26802:2010(en), 3.27
difficult-to-measure nuclide
nuclide whose radioactivity is difficult to measure directly from the outside of the waste packages by non-destructive assay means
EXAMPLE:
Alpha emitting nuclides, beta emitting nuclides, and characteristic X-ray emitting nuclides.
ISO 21238:2007(en), 2.1
bulk sample
sample of large mass, taken in a particular operation for a specific reason, such as for pilot washing, coal preparation or combustion tests
Note 1 to entry: It is not possible to define the minimum size of a bulk sample.
ISO 14180:2017(en), 3.1