ASTM D4307-17,Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards.
Significance and Use
4.1 The laboratory preparation of liquid blends of known composition is required to provide analytical standards for the calibration of chromatographic and other types of analytical instrumentation.
3. Summary of Practice
3.1 The individual blend components are precisely weighed and combined in an inert, tight-sealing glass vial or similar container. When volatility is a consideration, the components of lowest vapor pressure (least volatile) are added first and the highest (most volatile) last.Mass (weight) percent composition of the final blend is calculated from the mass and purities of the pure components. Volume percent composition can be calculated using the density of each component.
ASTM D4307-17 is applicable to components that are normally liquids at ambient temperature and pressure, or solids that will form a solution when blended with liquids.
Referenced Documents
D1364 Test Method for Water in Volatile Solvents (Karl Fischer Reagent Titration Method)