ASTM D7907-14 Determination of Bactericidal Efficacy on medical gloves

ASTM D7907-14 Determination of Bactericidal Efficacy on medical gloves

ASTM D7907-14 determines the bactericidal activity on either the inner or outer surface of gloves. Two analytical tests are employed for quantitatively assessing the surface bactericidal efficacy. The results are reported in SI units.

    Scope:

    ASTM D7907-14 is useful for the evaluation of bactericidal efficacy against a wide range of germs and circumstances, allowing manufacturers to compare performance. There are four specific bacteria listed against which antibacterial efficacy is compared.

    Procedure:

    Two test methods are intended to measure the amount of bactericidal efficacy of gloves under various conditions. In test method A, challenge bacteria are suspended in phosphate buffer saline. A sterile coverslip is used to inoculate a 20 6 0.1 L aliquot of the bacterial challenge onto a test specimen. In test method B, the test surface is first exposed to organic loading for stimulating glove contamination. The protein present in an organic load then neutralizes multiple bactericides. Once the organic conditioning is done than the site is challenged with target bacteria containing the organic load. The log reduction from the control specimen as well as from the challenge population recovered from the inoculum is determined per unit of time.

    Specimen size:

     Bacteria incubation time must be 24 to 48 h at optimal temperature. Microbial counts must be >90% similar.

    Data

    The log and percent reduction of the bacteria resulting from contact with the specimen is calculated using the following formula.

    (A) Log reduction from control specimen titer = SC – TS expressed in log10 scale (10x)

    (B) % bacterial reduction efficacy compared to control specimen = [(SC – TS) ÷ SC] × 100

    OUR SERVICES

    Core Materials Testing Services

    Metrology

    A variety of microscopy and spectroscopy tools available for precise measurements from the nano to the meter scale.

    Metrology Testing Services POPULAR TESTS:

    TEM SIMS Profilometry

    Materials Testing

    ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers.

    Materials Testing Services POPULAR TESTS:

    Nondestructive Testing Electrical Testing Chemistry Analysis

    Product Testing

    Thousands of tests for product quality and reliability under heat, humidity, temperature shock, vibration, drop, electrostatic discharge.

    Product Testing Services POPULAR TESTS:

    Vibration Testing Humidity Testing Accelerated Aging

    Looking for Material Testing?

    We have already delivered 10000+ Material Test results to top companies

      Send us a request

        Process for testing
        •  

          STEP 01

          You share material and testing requirements with us

        •  

          STEP 02

          We ensure your sample pick-up in an ensured manner

        •  

          STEP 03

          We deliver test report to your inbox

          Let’s work together!

          Share your testing requirements with us and we will be happy to assist you.

          ddd Just share your testing requirements and leave the rest on us!
          • Free, no-obligation consultation
          • Guaranteed confidentiality
          • Quick turnaround time
          • Hassle-free process

            idea icon
            Want to connect with an expert before you leave?