Following many of the principles outlined in ASTM method E165798.
Reference conditions: Standard flow cell, path length 10 mm, flow 1 mL/min LC-grade methanol.
Noise:
± 1.5·10-6 AU at 230 nm, TC 2 s
RT = 2.2 * TC
Linearity:
Linearity is measured with caffeine at 273 nm.
NOTE
The specification are based on the the standard RFID tag lamp (G1314-60101) and may be not achieved when other lamp types or aged lamps are used.
ASTM drift tests require a temperature change below 2°C/hour (3.6°F/hour) over one hour period. Our published drift specification is based on these conditions (refer to Specifications and Specifications). Larger ambient temperature changes will result in larger drift.
Better drift performance depends on better control of the temperature fluctuations. To realize the highest performance, minimize the frequency and the amplitude of the temperature changes to below 1°C/hour (1.8°F/hour). Turbulences around one minute or less can be ignored.
Performance tests should be done with a completely warmed up optical unit (> one hour). ASTM measurements require that the detector should be turned on at least 24 hours before start of testing.
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