Skip to content
Optimal Chemicals LogoOptimalChemicals
Sample being prepared for specification testing

Quality & compliance.

What we check, when we check it, and what travels with the material.

ZnO 99.9ZnO 92–94ZnO 40–45N330N660N550N339N220CBSTBBSMBTSTMTD6PPDTMQSBR-1502RSS-1SVR-10Zn IngotZnO 99.9ZnO 92–94ZnO 40–45N330N660N550N339N220CBSTBBSMBTSTMTD6PPDTMQSBR-1502RSS-1SVR-10Zn Ingot

Our commitments

Four things that hold on every order.

We describe our controls plainly and we do not claim certifications we have not been issued. If your procurement process needs a specific certificate or test method, ask us directly and we will tell you whether we can meet it.

Checked before it enters stock

Every incoming lot is verified against its specification before it is released into inventory. Material that does not match does not get sold.

A fixed window on our own grades

Our production runs to a defined grade window rather than a target we hit on a good day, which is what makes a repeat order behave like the last one.

Documentation with every consignment

Consignments ship with the paperwork you need for your own incoming inspection and for your customers' audits.

Samples before commitment

Evaluation quantities are available for development work and for qualifying a change of source, with the technical data to trial them properly.

Sequence

From raw material to documented dispatch.

  1. 01

    Incoming material check

    Raw material is checked against specification before it is released into production.

  2. 02

    Controlled process

    Each grade runs to a fixed process window, so the same grade behaves the same way batch to batch.

  3. 03

    In-process sampling

    Samples are drawn during the run rather than only at the end, so a drift is caught while it can still be corrected.

  4. 04

    Finished-goods verification

    Finished material is verified against the grade window before it is packed and moved to stock.

  5. 05

    Documented dispatch

    Every consignment leaves with its documentation, so what arrives at your gate matches what you ordered.

Next step

Need a document before you can raise the PO?

Tell us which specification, data sheet or declaration your process needs and we will confirm what we can provide.