OECD TG-104 Vapour Pressure
OECD GLP Physical-Mechanical Test
WESHIN INSPECTION TECH CO., LTD_

Physicochemical Property Evaluation — OECD TG 104 Vapour Pressure Determination

 

Precision in Volatility: Quantifying Environmental Fate and Safety

 

Vapour pressure is a fundamental parameter used to determine the volatility of a chemical substance and to predict its distribution across environmental compartments (air, water, and soil). Weshin provides high-precision OECD TG 104 Vapour Pressure Determination services, delivering robust data for international regulatory dossiers including EU REACH, K-REACH, and global GHS classifications.
 

Our Capabilities

 

  • Full-Spectrum Measurement: We offer solutions for a wide range of substances, from highly volatile liquids to low-volatility solids and oils.

  • Validated Methodologies: Our laboratory utilizes diverse techniques as outlined in OECD 104, including:

    • Dynamic Method: Ideal for higher vapour pressure ranges.

    • Static Method: Suitable for stable substances with moderate volatility.

    • Isoteniscope/Balance Methods: Specialized for low vapour pressure detection.

    • Effusion Methods: For extremely low-volatility substances.

  • Superior Accuracy: Advanced thermal control and high-sensitivity pressure transducers ensure minimal deviation and reliable results even for complex samples.

  • Regulatory Expertise: Our experts provide guidance on testing strategies and criteria for waivers (e.g., for substances with boiling points > 300°C).
     

Application Scope

 

Essential for pure chemical substances, active ingredients in pesticides, and specialty chemicals. This data is critical for Safety Data Sheet (SDS) Section 9 and comprehensive risk assessment modeling.


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