Certificates of Analysis
A Certificate of Analysis reports the actual analytical results for the specific lot you received. It is not the same document as a safety data sheet, and for a process with a tight specification it is the one that matters.
What a CoA gives you
- Lot or batch number, tied to what was physically delivered
- Assay or concentration as measured, not as nominally specified
- The specification range each result was released against
- Date of manufacture and date of analysis
- Authorisation from our quality group releasing the lot
Which products carry one
Every product blended in Arleta is released against a CoA — that is part of the ISO 9001:2015 quality system. For products we distribute rather than blend, we pass through the manufacturer’s CoA for the lot supplied.
Each product page lists which documents are available for that item.
Getting a copy
Email documents@mileschemical.com with the product name and the lot number from the container label. Same business day.
If you need CoAs routinely — for an audit trail, a customer requirement, or an incoming inspection procedure — ask us to attach them to your shipping paperwork automatically. Requesting them one at a time is a job nobody should have.
Retention
Batch records and analytical results are retained in line with our quality system. If you need a historical CoA for a lot received some time ago, ask — we can usually retrieve it.
An SDS is not a CoA
A safety data sheet gives typical properties and hazard information. It does not give the guaranteed analytical values for your lot. If your process depends on an assay window, the CoA is the document you want.
If your approval process needs something that is not here, one email gets it.
Certificates, insurance, registrations, safety data sheets, and completed supplier questionnaires. Standard documents go out the same business day.