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Quality

  • Pentastars
  • Quality

    • Our Commitment to Quality

    At Pentastars we are dedicated to producing the highest quality steam activated coconut shell activated carbon. We employ state-of-the-art manufacturing techniques and adhere to strict quality control standards to ensure that our products meet the highest industry benchmarks. Our commitment to excellence is reflected in the performance, reliability, and environmental sustainability of our activated carbon.

    Quality Control Measures in the Manufacture of Coconut Shell Activated Carbon) (CSAC

    Ensuring the quality of Coconut Shell Activated Carbon (CSAC) is paramount for its effectiveness in various applications. Here are some key quality control measures implemented during its manufacturing process:

     

    Raw Material Quality Control

    Activation Process Control

    Coconut Shell Charcoal Selection: Only high-quality charcoal produced from coconut shells with consistent density, low moisture content, and specified carbon content are selected, after incoming raw material testing

    Temperature and Steam Pressure: Precise control of quantity, temperature and pressure of steam during the activation process is exercised to achieve designed pore structure and adsorption capacity

    Impurity Removal: Incoming Charcoal is checked and cleaned to remove foreign matter, stones, metals and other impurities.

    Activation Time: The activation time is carefully monitored to ensure complete carbonization and pore development.

     

    Our Testing Process

    We have a modern laboratory with adequate equipment to test incoming raw material, in process carbon and finished Activated Carbons. We also have access to outside accredited laboratories to conduct specific tests as requited by customers

     

    • Particle Size: ASTM D2862 Sieve analysis is adopted to measure particle sizes in the US Mesh scale. Particle size has a direct effect on adsorption kinetics, flow characteristics, and filterability of the activated carbon. 
    • Ash Content ASTM D2866 The ash content is measure of the inert, amorphous, inorganic, and unusable part of the material.

    • Attrition AARL Material in a circuit is subject to vigorous agitation, leading to abrasion and inevitable production of carbon fines. This test is a measure of such loss of material.

    • Moisture Content ASTM D2867 The moisture content is measured to ensure that the activated carbon is sufficiently dry for storage and transportation.
    • Ball Pan Hardness ASTM D3802 This test is a measure of particle external integrity against wear. It is expressed as percentage particle size retained under a specified wear condition
    • Platelets AARL method The AARL (Anglo American Research Laboratory) method is a procedure for measuring platelet content in activated carbon. It involves blending and drying a sample, assembling screens of different sizes, and weighing the portions retained or passing through each screen.
    • pH Value ASTM D3838 The pH value of activated carbon is a measure of whether it is acidic or basic. Coconut shell based activated carbon is normally specified for a pH of 9 – 11.
    • Apparent Density ASTM D2854 Sometimes called the bulk density of activated carbon, or volumetric density, it is defined as the mass of many particles of the activated carbon divided by the total volume they occupy.
    • Carbon Tetrachloride (CTC) Activity ASTM D3467  This measures the loading of carbon tetrachloride, weight percent on carbon, at concentrations close to saturation in the air. The method is basically a measure of the pore volume of the activated carbon.
    • Iodine Value (or “iodine number”) ASTM D4607 is an indication of the available surface area in m2/gram of virgin carbon. Although the Iodine Value
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    Policy

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    Packing

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    Sieving

    The particle size distribution is determined using sieves to ensure that the activated carbon meets the required specifications for different applications.

    Proper Packaging

    The activated carbon is packaged in suitable containers to prevent contamination and ensure safe transportation.

    Clear Labeling

    Clear and accurate labeling is essential to provide information about the product, its specifications, and storage instructions.

    By implementing these quality control measures, manufacturers can ensure that the produced CSAC meets the highest standards of quality and performance, making it suitable for a wide range of applications.

    Particle Size Distribution

    Sieving: The particle size distribution is determined using sieves to ensure that the activated carbon meets the required specifications for different applications.

    Packaging and Labeling

    Proper Packaging: The activated carbon is packaged in suitable containers to prevent contamination and ensure safe transportation.

    Clear Labeling: Clear and accurate labeling is essential to provide information about the product, its specifications, and storage instructions.

    By implementing these quality control measures, manufacturers can ensure that the produced CSAC meets the highest standards of quality and performance, making it suitable for a wide range of applications.