ISO/IEC 18025 Table 6.25 — EAs whose label begins with U

Table 6.25 — EAs whose label begins with U

Label	Concept definition	Attribute value type	EQ label	Code
UNCOVERING_HEIGHT_KNOWN	An indication that information is known about the <<HEIGHT>> to which a <MARINE_OBJECT> may be uncovered by the <TIDE>.	BOOLEAN		1487
UNDERBRIDGE_CLEARANCE	The clearance below a <BRIDGE> measured from the lowest level of the bridged <SURFACE> to the base of the lower of either a cross beam or lowest deck of the <BRIDGE>; the underbridge clearance.	REAL	LENGTH	1488
UNDERLYING_MATERIAL- _CHARACTERISTIC	The characteristics of the composition of the <MATERIAL> underlying the <SURFACE> of an <OBJECT>.	ENUMERATION		1489
UNDERLYING_MATERIAL_TYPE	The type of composition of the <MATERIAL> underlying the <SURFACE> of an <OBJECT>.	ENUMERATION		1490
UPSTREAM_HEIGHT	The height of an <OBJECT> above a <WATERCOURSE> measured on the upstream side.	REAL	LENGTH	1491
URBAN_BUILDING_LIGHTING- _INTENSITY	A number between 0 and 1 inclusive representing the linearly-scaled fractional intensity of the <LIGHTING> on an urban <BUILDING>. Zero means unlit and one means maximum intensity.	REAL	PURE_NUMBER	1492
URBAN_STREET_LIGHTING- _INTENSITY	A number between 0 and 1 inclusive representing the linearly-scaled fractional intensity of the <LIGHTING> on an urban <STREET>. Zero means unlit and one means maximum intensity.	REAL	PURE_NUMBER	1493
URBAN_STREET_PATTERN	The predominant geometric configuration of <STREET>s found within a delineated <TERRAIN_SURFACE_REGION>; urban street pattern.	ENUMERATION		1494
URBAN_TERRAIN_ZONE_TYPE	The type of an urban terrain zone based on the characterization of <BUILDING>s and their density.	ENUMERATION		1495
USABLE_LENGTH	The usable <<LENGTH>> of an <OBJECT>.	REAL	LENGTH	1496
UTILITY_USE	The type of a <FACILITY> that is primarily used for utility provision purposes.	ENUMERATION		1498

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