• plcs

Valid8

  • Valid8ScreenValid8 is our online calculation and verification package. It is free to use with no login requried, click here for access.

    Valid8 is fully featured and provides fast, accurate and reliable results, with new calculations being added on a regular basis. Calculations provided include:
    • ISO 5167 - Measurement of fluid flow by means of pressure differential devices... 
    • ISO 6976 - ...Calculation of calorific values, density, relative density and Wobbe index...
    • ISO 8222 - ...Temperature corrections for use when calibrating volumetric proving tanks
    • AGA 3 - Orifice Metering of Natural Gas...
    • AGA 8 - Compressibility Factor of Natural Gas... 
    • AGA 10 - Speed of Sound in Natural Gas and...
    • API MPMS Chapter 11.1 - Temperature and Pressure Volume Correction Factors (VCF)
    • Gas and liquid densitometer density - various manufacturers
    • Turbine meter-K factor and meter factor calculations
    • Totalisation and averaging
    • Mass Flow - Cone type meters


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  • Valid8ScreenValid8 provides all the functionality to verify your flow calculations:
    • Instantly available with no installation
    • Easy to use
    • Comprehensive library of flow calculations based on industry standards
    • Save and load your tests to your local PC
    • Export results to PDF or Excel spreadsheet
    • Allows full precision results with up to 15 significant figures
    • Email feed-back facilities
    As well as giving fast and accurate results, Valid8 provides traceability by:
    • Showing intermediate results
    • Providing calculation help files that outline the methods used.


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  • browsersValid8 has been tested and is compatiable with the following browsers:
    • Microsoft Internet Explorer versions 8 and above
    • Google Chrome
    • Mozilla Firefox
    • Apple Safari
    • Opera
    To use the export to Excel function Valid8 requires Microsoft Excel 2007 or above.


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    Valid8 Link Logo