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
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.
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.
ASTM E572 test method covers the analysis of stainless and alloy steels by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). It provides rapid, multi-element determinations with sufficient accuracy to assure product quality.
The ASTM D2674 test is a standard test method for the analysis of sulfochromate etch solutions used in the surface preparation of aluminum. The ASTM D2674 standard specifies a method for determining the efficacy of an etchant used to prepare the surface of aluminum alloys for subsequent adhesive bonding.
An immunological method for quantization of Hevea Natural Rubber (HNRL) proteins using rabbit anti-HNRL serum. Rabbits immunized with HNRL proteins react to the majority of the proteins present, and their sera have the capability to detect most if not all the proteins in HNRL.
ASTM G65 measures the resistance of metallic materials to abrasion using the dry sand/rubber wheel apparatus. The quality, durability, and toughness of the sample are determined using this test. Metallic materials are ranked in their resistance to scratching abrasion under a controlled environment.
ASTM E2141 test methods provide accelerated aging and monitoring of the performance of time-dependent electrochromic devices (ECD) integrated in insulating glass units (IGU). This test helps to understand the relative serviceability of electrochromic glazings applied on ECD.
ASTM C724 test method is used in analyzing the quality and ease of maintenance of a ceramic decoration on architectural-type glass. This test method is useful in the acknowledgment of technical standards.
Send us a request
Process for testing
STEP 01
You share material and testing requirements with us
STEP 02
You ship your sample to us or arrange for us to pick it up.
STEP 03
We deliver the test report to your email.
Just share your testing requirements and leave the rest on us!
Free, no-obligation consultation
Guaranteed confidentiality
Quick turnaround time
Hassle-free process
Let us combine our capabilities to achieve success!!
