1. Rationale
1) Section 10.1 is being revised to require calibration checks of the pressure transducer calibration only as needed as indicated by failure of the performance check in 10.1 because of: a) The unnecessary nature of the pressure transducer calibration check at a defined interval due to the inclusion of required performance checks in Section 10.3, which require calibration check if a performance check standard failure occurs. b) The safety concerns involved with using a McLeod Gauge with its large quantity of mercury-in-glass usage. c) The excessive down-time, cost and potential loss or damage to instruments during shipping if sent to the manufacturer for a calibration check when the calibration is verified daily as required in Section 10.3. d) Instrument stability routinely exceeds the six month calibration check interval defined in 10.1.
Keywords
gasoline; gasoline-oxygenate blends; petroleum products;
T(V/L = 20); vapor-liquid ratio; Air saturation; Evacuated chamber method; Fuel oils; Petroleum samples; Phase separation; Temperature tests--petroleum products; Vapor-liquid (V/L) ratio
Citing ASTM Standards
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