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AFS Standard - Specific Gravity Test

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    Product No. STD2502DL

    This standard prepared by the AFS Aluminum & Light Metals Division, documents critical details and best practice procedures for skillfully determining the specific gravity of a reduced pressure testing (RPT) sample. Specific Gravity Testing, in addition to Density Index, is the preferred methodology for evaluating the quality of aluminum melts from RPT samples - having replaced visual comparisons to wall charts.

    The standard documents a step-by-step guide to equipment design and maintenance, procedural requirements, and detailed instructions for maximizing accuracy and repeatability in determining the specific gravity of an RPT sample.

    Casting users, students, process engineers, foundry metallurgists, QA lab technicians and other foundry staff and management will benefit from this standard.

    TABLE OF CONTENTS
    1. Date Submitted
    2. Date Approved
    3. Division Sponsor
    4. Significance and Use
    5. Technical Background
    6. Suggested Practice
    7. Cautions in Use
    8. References

    Keywords: Standard, Specific Gravity, RPT Test Evaluation, Density Index Alternative, Stahl Chart Test Alternative, Aluminum Melt Testing