A standing order fixes a price band, a quantity range and a delivery rhythm for a defined list of items; a one-off purchase order buys a set quantity at a set moment. Clinics that keep PPE spending predictable usually run both — standing orders for gloves, masks and gowns, and purchase orders for low-turnover or specification-sensitive lines.
How does a standing order differ from a one-off PO?
A standing order is an agreement, not a shipment. It names the items, the specification, the quantity flexibility, the delivery window and the period for which the price holds. You draw against it on a schedule while the supplier keeps the line open. A purchase order is a single transaction: one quantity, one delivery, one invoice, priced at whatever is current when the PO is raised.
Which PPE items suit a standing order?
Standing orders work where consumption is high and the specification is stable. In most clinics that means exam gloves, procedure masks, isolation gowns, hand sanitiser and exam table rolls — items bought by the case and missed immediately when they run out. The test is simple: if you have reordered the same item three times in six months without changing the specification, it belongs on a standing order.
When is a one-off PO the better structure?
Use a purchase order where the specification is still moving, where volume is hard to forecast, or where the item is bought for a single project. New glove materials under evaluation, a one-time fit-testing clinic or extra stock for a vaccination push all fit a PO better than a standing commitment. A PO also keeps forecasts honest on items you have never actually consumed at the rate you predicted.
How do you write a standing order that survives a price change?
Six clauses do the work. Specification lock names brand, material, thickness, size range and pack count exactly as ordered. A price validity window states how long the agreed price holds and how much notice a change requires. Quantity flexibility sets a percentage band above and below the forecast, so a quiet month is not a breach.
- Substitution rule — whether substitutes are allowed, who approves them, and what documentation must arrive with them.
- Delivery window — the day range, the drop-off point and who signs at the dock.
- Review date — a fixed date to recheck volumes against actual use.
What are the common traps?
Two traps cause most of the friction. Locking a price without locking a specification lets a lighter glove or a different mask ship under the same line item. A missing substitution clause is worse: when the agreed item goes on backorder, something merely similar arrives, and it lands in a room that has to use it. Write the substitution rule before the first backorder, not after.
Reconciliation is the other half. Match each delivery against the standing order reference and the original specification, and query differences within the same billing cycle rather than at year end.
| Dimension | Standing order | One-off PO | Typical fit |
|---|---|---|---|
| Price validity | Held for an agreed period | Current price at PO date | High-turnover lines |
| Ordering rhythm | Scheduled draw-down | As needed, single event | Steady consumption |
| Quantity | Band above and below forecast | Exact quantity ordered | Forecastable volume |
| Substitutions | Governed by a clause | Requires a fresh PO | Specification-sensitive items |
| Specification risk | Low when the spec is locked | Low, one order at a time | New or changing items |
| Admin load | One setup, recurring draws | One PO per purchase | Low-turnover items |
Ordering for a clinic, lab or care home? Wholesale and multi-site ordering covers case pricing and account setup, and the B2B wholesale collection lists the lines stocked for institutional buyers.
Related reading
- Medical supply wholesale in Canada: how clinics buy in bulk
- Medical supplies wholesalers in Canada: your vetting checklist
- How to choose a PPE supplier in Canada
- printable sterilization log
Two lines carry most standing orders in this category: nitrile gloves by the case and 4 mil nitrile gloves in 100-count boxes.
Buying for a facility rather than a single practice? Request a B2B quote and we will price your volume with Canadian warehouse delivery.
Frequently Asked Questions
What is the difference between a standing order and a purchase order?
A standing order is an agreement that holds a specification, a price period and a quantity band for a list of items you draw against on a schedule. A purchase order is a single transaction for a set quantity at the price current on the day it is raised.
Which supplies should we put on a standing order first?
Start with the items you reorder most often on a stable specification, usually exam gloves, procedure masks and isolation gowns. If you have bought the same specification three times in six months, the ordering rhythm is predictable enough to commit to.
Do standing orders work for items with changing specifications?
Not well. When material, thickness or pack count is still being evaluated, a purchase order keeps each purchase reviewable. Move the item onto a standing order once the specification has been fixed for several cycles.
What should a substitution clause say?
It should state whether substitutes are allowed at all, who approves them, which specification attributes must match, and what documentation must travel with the shipment. Without it, a backorder can be filled with a product no one on your team has reviewed.
CliniEco Medical is a licensed medical device establishment (MDEL #35334).
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