ASTM D7724 Standard Test Method for Carbon Black

ASTM D7724 Standard Test Method for Carbon Black

The determination of non-dispersible materials following mechanical water flushing of ordinary untreated carbon blacks is covered by the test technique ASTM D7724. It may not be appropriate for carbon black samples that have been coated with oil since the oil would hinder proper wetting of the sample by water. The values expressed in SI units are regarded as standard.

  • Average 30% Cost
    Savings

  • 100% Confidentiality
    Guarantee

  • Free, No-obligation
    Consultation

  • 100% Customer
    Satisfaction

    TRUSTED BY ENGINEERS FROM

    Scope:

    In some extruded items, the amount of non-dispersible carbon black is crucial since it may affect the product’s surface appearance. The maximum amount of non-dispersible materials allowed, the smallest possible size, and the number of particles to be studied in each application between the user and the producer are determined in this ASTM D7724 testing.

    Procedure:

    The following procedure is followed in ASTM D7724 testing:

    The water pressure is adjusted. The pressure is changed after spraying. The sieve is connected to the equipment, and the “flush” button is pressed. Water is flushed through the nozzles for as long as the timer is set. The sieve is disassembled and inspected for particles. If there are no particles found, the sieve is reconnected. The sample is placed in a container and weighed. The sample is transferred into the test cylinder. The correct weight is noted for the computation. The lid is closed slowly while pressing the “start” button. There is no water cleansing while the spraying nozzle rotates. A vacuum application without any water flowing indicates the conclusion of the test. The measurement then comes to an end. The sieve is disassembled and dried. The non-dispersible substance is transferred quantitatively to a weighing dish, weighing close to 0.1 mg.

    Video 01: Carbon black dispersion tester

    Data:

    The following data is calculated in ASTM D7724 testing:

    R = (W/S) X 106  

    R = Non-dispersible matter 

    W = mass of the sieve residue

    S = mass of the sample

    Conclusion:

    The determination of non-dispersible materials following mechanical water flushing of ordinary untreated carbon blacks is covered by the test technique ASTM D7724.

    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

            ddd

            Let us combine our capabilities to achieve success!!

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