Q&A
How often should activated carbon be replaced?
Activated carbon typically needs replacement every 15–90 days, depending on the application and contamination level, to avoid secondary pollution or efficiency loss
Can you provide COA or test reports?
Yes, for every shipment, we provide full COA and lab test reports including iodine value, hardness, moisture, and ash content.
What is the difference between high-iodine and medium-iodine activated carbon?
High-iodine carbon has larger surface area and higher adsorption capacity, suitable for gold recovery and industrial purification, while medium-iodine carbon is ideal for water treatment and general purification.
How do you ship your products?
We ship via sea freight, air freight, or express courier, depending on the destination and urgency.
How long is the shelf life of activated carbon?
Stored in a dry, ventilated, and sealed environment, our activated carbon can last 2–3 years without losing adsorption efficiency.
What is your minimum order quantity (MOQ)?
For standard products, MOQ is 1 ton. For customized products, MOQ may vary depending on production requirements.
What is your payment method?
We accept T/T (bank transfer), L/C, and PayPal depending on the order type and customer location.
Can you provide technical support?
Yes. Our R&D and technical team can provide guidance on carbon selection, usage, regeneration, and performance optimization.
How long does it take to test a sample?
Typically, samples can be sent immediately, and you can start testing within 1–2 days after receipt.
