KASBONEX GLOBALINDUSTRIAL MATERIALS
News • October 31, 2026

Bentonite Powder Samples: A Buyer’s Evaluation Checklist

Kasbonex Global Company
OCMA and API 13A Bentonite Powder specification tables

A bentonite powder sample is most useful when it answers a defined purchasing question: does the proposed material meet your approved requirements, and can the supplier document the material offered for the order? Before requesting a sample, agree on its purpose, identification and review criteria.

This guide provides a practical sample-request workflow for purchasing teams considering bulk Bentonite Powder. It complements a quotation request; it does not replace the buyer’s technical approval or the agreed purchase specification.

1. Define what the sample needs to demonstrate

Start with the intended use and the specification approved by your technical team. Identify whether your enquiry refers to the supplied OCMA or API 13A requirement profile, or to a separate buyer specification. Attach the actual requirements rather than relying on a grade name alone.

The OCMA vs API 13A procurement guide explains how Kasbonex presents these two profiles. For a sample review, ask the supplier to identify which profile the offered material is being submitted against. A reference to a profile should not be treated as proof of certification or acceptance.

2. Agree on sample identity and traceability

Ask whether the sample comes from an identified available lot, a production trial or a representative reference sample. Record that distinction in the evaluation file. If the eventual shipment will come from another lot, agree on how that shipment will be checked before release.

  • Product name and offered profile.
  • Sample reference and lot or batch number, where applicable.
  • Sampling date and the party responsible for sampling.
  • Sample quantity and package identification.
  • Related technical data sheet, available COA and SDS.

Keep the sample label, supplier correspondence and laboratory report under the same reference. This makes it easier to resolve differences between the sample tested and the material quoted.

3. Confirm the evaluation plan before dispatch

Let the receiving laboratory specify the sample quantity, packaging and preparation requirements. Ask the technical team to name the test methods, acceptance limits and reporting units it will use. Numerical results are difficult to compare when the methods or preparation conditions differ.

Use the agreed product specification to select the properties for review. Where a method reference is unclear, resolve it with the laboratory and supplier before testing. Do not substitute a test from another specification simply because it uses a similar property name.

Decision What to agree
Sample purpose Initial screening, supplier qualification or an identified lot review.
Testing responsibility Buyer laboratory, supplier laboratory or a mutually agreed independent laboratory.
Acceptance basis Approved specification, methods, units and limits.
Timing Dispatch date, expected review period and quotation validity.
Commercial responsibility Sample charges, courier charges and any agreed testing costs.

4. Record the outcome and any conditions

When the report arrives, compare each required result with the agreed limit. Record missing results, method differences and qualifications separately from the pass or fail decision. Refer unresolved points to the technical team before issuing an order.

A useful evaluation record includes the sample reference, report number, decision date, approving person and any conditions. If approval depends on shipment-specific documents or inspection, carry those conditions into the purchase order. Sample acceptance alone should not be written as an unrestricted approval of all future deliveries.

5. Connect technical approval to the bulk quotation

Once the sample review is complete, send the supplier the approved requirements together with the required tonnage, destination, delivery schedule and commercial terms. Kasbonex’s current Bentonite Powder page lists 1.5-ton jumbo bags as its declared packing basis, subject to confirmation in the commercial offer. Confirm the actual packing and shipment arrangement for your order.

Ask the quotation to identify the offered material and any remaining document or inspection conditions. Confirm availability, delivery timing and price directly; a sample dispatch does not establish these commercial commitments.

Bentonite sample request template

Use the following checklist in your enquiry:

  • Product and profile: Bentonite Powder; specify the required OCMA or API 13A profile, or attach your buyer specification.
  • Intended use: Briefly describe the application for technical review.
  • Sample purpose: State whether you need a reference sample or a sample from an identified lot.
  • Evaluation: Attach the laboratory’s required quantity, test methods and acceptance criteria.
  • Documents: Request the applicable technical sheet, available COA and SDS, with matching references.
  • Delivery: Provide the receiving contact, address and requested timing.
  • Bulk requirement: Include estimated quantity, destination and purchasing timeline.
  • Costs: Ask the supplier to confirm any sample, courier or testing charges before dispatch.

Frequently asked questions

Is a sample the same as a shipment COA?

No. A sample is material submitted for evaluation. A COA reports results for the material or lot identified on that document. Check the references and agree on the documents required for the eventual shipment.

How much bentonite powder should I request?

Ask the laboratory performing the evaluation to specify the quantity it needs for the agreed tests and any retained sample. Confirm that quantity with the supplier before dispatch.

Can an approved sample replace a purchase specification?

Keep the written specification and acceptance conditions in the order. Record how the approved sample relates to those conditions and to the material that will be supplied.

Discuss your Bentonite Powder requirement

Review the Bentonite Powder product information, then contact Kasbonex Global with your required profile, sample evaluation plan, bulk quantity and destination. Request confirmation of sample availability and commercial conditions for your enquiry.

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