ASTM D2786 for Hydrocarbon Types Analysis of Gas-Oil Saturates Fractions
ASTM D2786 Standard Test Method for Hydrocarbon Types Analysis of Gas-Oil Saturates Fractions by High Ionizing Voltage Mass Spectrometry
6. Apparatus
6.1 Mass Spectrometer - The suitability of the mass spectrometer to be used with this method shall be proven by performance tests described both herein and in Recommended Practice E 137.

6.2 Sample Inlet System - Any inlet system may be used that permits the introduction of the sample without loss, contamination, or change in composition. The system must function in the range from 125 to 350°C to provide an appropriate sampling device.

6.3 Microburet or Constant-Volume Pipet.

7. Reagents
7.1 n-Hexadecane. (Warning - Combustible. Vapor harmful.)