ISO 18930:2011 イメージング材料—絵画の色反射プリント—屋外条件下での画像の安定性を評価する方法 | ページ 6

3.1

digital printing media

recording elements used by digital printers to receive inks or pre-formed colorants

3.2

encapsulation

sealing of all edges of a specimen that has been laminated on both front and back surfaces

Note 1 to entry: This is usually done by laminating with sheets that are larger in dimension than the specimen and then sealing at the overlaps.

3.3

laminate

layer of material that goes over the top or bottom of a specimen

Note 1 to entry: This is usually to provide water-resistance, physical, and/or ultraviolet (UV) light protection of the specimen during a weathering test. A layer of protective film is applied with a pressure-sensitive or heat-activated adhesive.

3.4

accelerated laboratory weathering

simulated weathering where instruments (weathering devices) are used to obtain very controlled conditions that simulate, to some degree, and generally accelerate, the outdoor weathering results

Note 1 to entry: The use of such instruments is described in ISO 4892-1 and ASTM G151.

3.5

outdoor weathering

actual placement of specimens outdoors in specific locations

Note 1 to entry: This is differentiated from simulated weathering where instruments (weathering devices) are used to obtain very controlled conditions that simulate, to some degree, and generally accelerate, the outdoor weathering results. Use of such instruments is described in ISO 4892-1 and ASTM G151.

3.6

accelerated outdoor weathering

use of mirrors or lenses to focus sunlight onto specimens for increased intensity

Note 1 to entry: The use of such devices is described in ISO 877-3.

3.7

reciprocity failure

non-equivalence in weathering results between a long exposure/low-intensity experiment and its short exposure/high-intensity counterpart with an equivalent intensity-time product

3.8

total solar UV irradiance

irradiance in the wavelength range from 300 nm to 400 nm integrated over the duration of a test

Note 1 to entry: This quantity is usually fairly consistent from year to year in a given location, and is usually given in units of MJ/m².

3.9

daylight filter

optical filter, or combination of filters, that modifies the spectral power distribution of a light source to better represent some defined daylight spectrum

Note 1 to entry: These filters are not related to the blue filters used in the photographic industry for the change of correlated colour temperature of light sources.

Note 2 to entry: Adapted from ISO 18913.

3.10

operational control point

set point for equilibrium conditions measured at sensor location(s) in an exposure device

[SOURCE: ASTM G113]

3.11

operational fluctuations

positive and negative deviations from the setting of the sensor at the operational control set point during equilibrium conditions in a laboratory accelerated weathering device

Note 1 to entry: The operational fluctuations are the result of unavoidable machine variables and do not include measurement uncertainty. The operational fluctuations apply only at the location of the control sensor and do not imply uniformity of conditions throughout the test chamber.

[SOURCE: ASTM G113]

3.12

operational uniformity

range around the operational control point for measured parameters within the intended exposure area, within the limits of intended operational range

[SOURCE: ASTM G113]

3.13

uncertainty (of measurement)

parameter, associated with the result of a measurement, that characterizes the dispersion of the values that could be reasonably attributed to the measurand

Note 1 to entry: The parameter might be, e.g., a standard deviation (or a given multiple of it), or the half-width of an interval having a stated confidence level.

Note 2 to entry: Uncertainty of measurement comprises, in general, many components. Some of these components can be evaluated from statistical distribution of the results of series of measurements and can be characterized by experimental standard deviations. The other components, which also can be characterized by standard deviations, are evaluated from assumed probability distributions based upon experience or other information.

Note 3 to entry: It is understood that the result of the measurement is the best estimate of the value of the measurand and that all components of uncertainty, including those arising from systematic effects, such as components associated with corrections and reference standards, contribute to the dispersion.

[SOURCE: ASTM G113]