Test index and test method of pine oil

Pine oil is a natural resin oil extracted from pine trees, also called retinol. It has good solubility, viscosity and stability, and is often used in paint, coating, rubber and other fields. In addition, pine oil can also be used as a cleaning agent and disinfectant, etc.

Main performance
The main properties of pine oil are shown in the following table:

PerformanceIndex of detection
Exterior appearanceColor, transparency
Acid numberMg KOH/g
Degree of viscositymillisecond
Degree of solubilitySolubility in different solvents
Density of densityG/ml

These properties can be tested by different chemical analysis methods, physical tests and instrumental tests, for example, acid values can be measured by acid-base titration, viscosity can be measured by viscometer, density can be measured by hydrometer, etc.

Test index and test method of pine oil

Relevant standards
The following are some properties and related criteria that pine oil may need to be tested for:

PerformanceRelevant standards
PurityGB/T 602-2007
Relative densityGB/T 4472-2011
Refractive indexGB/T 6488-2008
Flash pointGB/T 261-2008
Acid valueGB/T 5530-2014
ViscosityGB/T 265-1988
MoistureGB/T 6283-2008

Test index and test method of pine oil

Method of detection
Specific detection methods can be selected according to criteria, such as:

Purity: Gas chromatography (GC) can be used to detect the content of various chemical components in pine oil, or infrared spectroscopy (IR) can be used to detect purity.

Relative density: can be measured using equipment such as a densitometer or a specific gravity bottle.

Refractive index: can be measured using a refractometer.

Flash point: can be measured using closed or open cup method.

Acid value: The acid value can be determined by titration.

Viscosity: can be measured using a viscometer.

Moisture: Halide titration, Coulomb method and other methods can be used to determine moisture content.

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