Specification of Kohler K24870 Automatic Microscale Vapor Pressure Analyzer
Test Method
ASTM D5191: Determines the total vapor pressure exerted in vacuum by air-containing, volatile, liquid petroleum products, including automotive spark-ignition fuels with or without oxygenates. This test method is suitable for testing samples with boiling points above 0 C (32 F) that exert a vapor pressure between 7 kPa and 130 kPa (1.0 psi and 18.6 psi) at 37.8 C (100 F) at a vapor-to-liquid ratio of 4:1. Measurements are made on liquid sample sizes in the range from 1 mL to 10 mL. No account is made for dissolved water in the sample.
ASTM D6378: Determines the vapor pressure exerted in vacuum by volatile, liquid petroleum products, hydrocarbons, and hydrocarbon-oxygenate mixtures. This test method is suitable for testing samples with boiling points above 0 C (32 F) that exert a vapor pressure between 7 kPa and 150 kPa (1.0 psi and 21 psi) at 37.8 C (100 F) at a vapor-to-liquid ratio of 4:1. The liquid sample volume size required for analysis is dependent upon the vapor-to-liquid ratio chosen and the measuring chamber volume capacity of the instrument.
Specifications
Conforms to the specifications of: ASTM D5191, D6378
Excellent Correlation to: ASTM D323, D4953; EN 13016-1; IP 394; JIS K2258-2; SH/T 0794, SH/T 0769; GB/T 8017I; SN/T 2932
Temperature Range: 0 C to 120 °C (30 F to 250 °F)
Temperature Stability: ± 0.1 °C
Pressure Range: 0 kPa to 1000 kPa (0 psi to 145 psi)
Pressure Resolution: 0.01 kPa
Sample Volume: 1 mL (2.5 mL rinse - 3x per cycle)
Vapor / Liquid Ratio: 0.02:1 to 4:1
Interfaces: RS232, USB, Ethernet