The ASI RF Postive/Negative Control Set is a slide agglutination assay for the qualitative and semiquantitative determination of rheumatoid factor (RF) in human serum. No initial dilution of patient samples is required for this test. These materials are intended to be acquired, possessed, and used only by health/laboratory professionals.

• Two Minute slide test
• Standardized to WHO reference
• No initial dilution required
• Two Liquid controls included
• Longest shelf life - up to 24 months
• Proudly made in USA
• Proven by CAP, AAB, and API surveys