The Reagents screen is the catalogue of the reagents and consumables the lab uses (ISO/IEC 17025 §6.4). Each reagent is a "what it is" entry, while the specific lots you have on the shelf are kept separately (see Reagent Lots).
Found under: Reagents & Storage → Reagents.
| Field | Description |
|---|---|
| Name | The reagent's name (required) |
| Supplier | Approved reagent supplier (optional) |
| CAS | The substance's CAS number (optional) |
| Unit | Default unit, inherited by lots that don't set their own |
| Stability after opening (days) | §6.6 — how many days the substance lasts once opened. Empty means the certificate date governs |
| Lab Method | The method that uses the reagent (optional) |
| Notes | Free text |
| Lots | Number of lots for the reagent (any status) |
A sealed bottle and an opened one do not expire on the same day. Fill in Stability after opening and every lot of the reagent expires at the earlier of the two: the certificate date, or the opening date plus the stability days.
That date is not decorative. It is the date read by the lot's status, by the expiry filters on Reagent Lots, and by the expiry notifications. When the post-opening expiry is the binding one, the lot shows it beside the opening date as "in use until", in amber — so it is visible why it expires earlier than the certificate.
Clicking a reagent opens its own page, with its lots as an ordinary grid: lot number, supplier, dates, certificate, stock and status. Lots are added and corrected from there.
Points at — this page does not stand without these:
Used by — a change here shows up in these: