Acceptance criteria for animal-housing floors are the written conditions that end a cleaning job: what has to look dry, where the water has to have gone, which surfaces were deliberately left alone, and who signs the row. Most disagreements between a livestock operator and an equipment supplier start because neither side wrote those conditions down before the first pass. This article assumes the whole task - the stock-and-water calendar, the deposit inventory, the floor materials, the drainage route - belongs to the facility, and that the supplier's only job is to state in writing how their machine behaves on the surfaces the facility has listed.
One thing to say plainly at the start: the cleaning pages on this site present vehicle cleaning, plus work in garages and in tight parking spaces, and they do not present animal-housing floors as a documented application. The livestock scope below is written from how these sites are run, not from a reference application. That is exactly why the criteria have to be settled with a bounded trial on the building you own rather than inferred from a brochure.
Write the stock-and-water calendar before you write a single criterion
An acceptance criterion set at the wrong moment gets quietly relaxed. So the first page of the document is not a cleaning standard at all; it is the operations calendar for the house or yard, with the empty windows marked. On most livestock sites those windows are set by things you cannot negotiate with: a delivery bay that has to be clear at an hour, a drinking-water line that is shut for a few hours, a handling race that is out of use between groups, a slats or channel-cleaning slot, and a group turnover when the pen stands empty and the floor can be worked wet without disturbing animals.
Two lists fall out of that calendar. Occupied-window work is limited to tasks that can start and finish inside the window and that leave the surface usable straight away. Turnover-window work is everything that needs dwell, rinsing, or a drying period. Every criterion you write is attached to one list or the other. A criterion that does not say which window it belongs to cannot be judged, because a floor that is acceptable in an empty pen is not the same floor as the one an animal walks on an hour later.
Inventory the floors by material and by wear, not by building name
The same facility normally has three or four different floor conditions, and each one needs its own row. Walk each house and record the surface type where you find it: sealed concrete, unsealed or aged concrete with an open surface, grooved or brushed concrete, bedded areas where the floor is covered part of the cycle, concrete with a metal or rubber channel, and drainage channels and gullies. For each row write the wear you actually see: a hollow or spalling edge, a loose aggregate surface, a repaired patch, a surface that has been re-levelled, a joint that has opened. Wear changes what a criterion means. On an intact sealed floor, "surface is clean" and "surface is intact afterwards" can be judged by the same walk. On a floor that is already spalling, the cleaning result and the condition of the surface have to be recorded as two separate things, because a floor can look cleaner and still have lost material.
Keep this inventory as a simple floor plan with a number on each area. The number is what the criteria, the trial records and the supplier's written method all refer back to. Building names drift; area numbers on a drawing do not.
Name the deposits, because the deposit decides what "clean" means
Write what is actually on each floor area rather than "manure" as a single word. In practice the list is: loose soiled bedding and litter; a compacted mat of bedding pressed into a channel; slurry film on a sloped floor; a dried crust along a wall base and in a corner where splash lands; caked material around a drinker or feeder stand where the surface is wet most days; caked material at a gate hinge and at the edge of a handling race; and mud and grit tracked in from a yard at gate lines. Each family is judged differently. Loose litter is a removal question: is the area free of it after sweeping or scraping, before any machine is used? A dried crust is a release question: does the material come off the surface, or is it only moved? A slurry film on a slope is a drainage question: has it been carried to the channel rather than pushed onto a clean area?
For each family decide now how the check will be made in front of two people who disagree. The honest options are: a bare-surface look against a reference photograph you took on your own floor; a fingernail or flat-blade edge test at a defined spot; and a before-and-after photograph at a taped patch, taken from the same height and angle. A criterion that relies on one person's impression of "clean" will not survive the first disagreement, and a criterion that relies on a laboratory swab will not be used at all on a working day.
Record the water route and the standing-water condition for every area
On livestock floors the water you apply is as much part of the result as the deposit you remove, and it is the thing most often left out of the criteria. For each floor area write: where the water is supplied from; how far the reach actually extends from that point; where the run-off is expected to go; which channel or gully receives it; and whether that route is inside the building, into a slats pit, into a tank, or onto ground that has to be managed. Then write the closing condition, which on a floor is usually a drying condition rather than a shine condition: no standing water at a defined spot after a defined interval; no film of water held in a channel; edges and corners that hold water called out by name.
This row costs money and effort, and it is the row that settles the argument later. If the run-off route was never written down, then a cleaning job that left the floor dry but moved water into a corner nobody planned for will still be signed off, and the same problem will be re-cleaned next month. If the route is written, the same job either passes or gets corrected on the day.
Draw an exclusion line, and give every excluded item a fallback
Livestock buildings are full of things a floor routine should not touch. List them explicitly: electrical outlets, junction boxes and cable runs along a wall base; control panels and sensor housings; gas lines and their valves; bearings, motors and drive units on feed or ventilation equipment; insulated or vapour-barrier wall linings where the fixings are exposed; timber posts and any timber or soft-timber edge to a floor; fresh or recently repaired concrete; coated or painted surfaces that are worn or unbonded; rubber matting; any opening to a slats pit or tank during the pass; drinking-water pipework and the drinker itself; and gates and latches that an animal can reach.
Then, and this is what makes the exclusion line usable, write the fallback for each item: brushing and wiping, scraping and sweeping, or leave-it-and-revisit-with-a-planned-shutdown. An exclusion list without a fallback becomes a reason to abandon the routine. An exclusion list with a fallback becomes a drawing that shows what is covered, what is avoided, and what gets cleaned on a different day.
Four conditions every accepted floor row has to carry
Whatever the area, an accepted row contains four written conditions. First, a deposit condition: the named deposit family is no longer present at the checked spots, judged by the method chosen for that family. Second, a water condition: the run-off has followed the planned route and the surface is dry to the touch at the checked spots after the stated interval. Third, a surface condition: no material has come off the floor that was not already loose, no new hollow, no lifted edge, no lifting of a repair, no damage to a joint - judged against the photographs taken before the pass. Fourth, a boundary condition: everything on the exclusion list is still where it was, undisturbed, and any shielding used has been removed and accounted for.
Sign-off belongs to someone other than the person who did the work. On a small site that may be the same person on a different day, but write who it is. A row with no name against it is a row that will be argued about.
Settle the trial area, and write the stop conditions first
Before any machine is hired or bought, choose the patch that will decide the question, and mark it with tape. Take the worst deposit and the worst-wear example of each floor type from your inventory, not the easiest one, and put one patch at a corner and one at a channel so that both a hard-to-reach spot and a drainage spot are covered. Photograph each patch before the pass from a fixed height.
Now write what stops the trial, and write it before the pass rather than after: material is driven deeper into an open surface rather than released; aggregate or surface material comes loose at a patch that was recorded as sound; water enters a place on the exclusion list; the floor cannot be brought back to dry within the window you can actually spare; or the run-off cannot be routed anywhere the site will accept. A stop condition written after a bad result is a complaint; a stop condition written before the first pass is an acceptance criterion with teeth.
Score the patches against the calendar you actually have
A result that cannot be repeated inside the site's own windows is not a result. Record, for each patch: how long the pass took including moving and shielding; how long the surface took to reach the dry condition you specified; whether the work fitted inside the occupied or turnover window it was assigned to; and how much water and how much labour the area needs when the same job is done on the full floor rather than one patch. Write those columns as measured observations from your building. They are the numbers your own standard will be built from, and no supplier's sheet can substitute for them.
Judge dryness and film return in the same way every time, on the same kind of spot, at the same point in the day. A floor judged in a cold hour and a floor judged in a warm one will not look the same, and a criterion that does not say when it is checked gets quietly renegotiated every week.
Write the questions you put to the supplier, and refuse generic answers
The machine supplier is not being asked to declare that livestock floors are clean. They are being asked to answer the questions your criteria depend on, in writing, for the unit they are quoting: what is delivered where, what supplies and connections the unit needs and where those connections have to be on your building; whether the unit offers both dry and wet steam modes and what each mode is offered for; which protection features the quoted unit is stated to have; what the unit's own page says its working voltage and connections are, and whether that matches the supply at the house; what is on the machine that must be cleaned or inspected as part of owning it; and what the supplier will commit to in writing if a patch you marked in advance fails against your four conditions.
For comparison you will be looking at both fixed and mobile units. The fixed steam cleaning machine listing is presented with dry and wet steam and with vehicle-cleaning applications; the mobile steam cleaning machine range is listed for use inside garages and in parking spaces too tight to drive a machine into. Neither page presents animal-housing floors, so the correct supplier answer is a written method for your surfaces, not a claim. If you need the equipment matched to your building rather than chosen from a list, that is a configuration conversation, and customized steam cleaning equipment is where that conversation is opened.
Turn the accepted result into one page per floor family
One page per floor family beats a manual nobody reads. The page carries: the area numbers on the drawing; the deposit families for that floor type; the pass and the shielding; the named exclusions with their fallbacks; the run-off route; the four conditions and how each is checked; the dry interval; and the sign-off name. Put the page in the house, not in an office, and train on it at the floor rather than in a room. Give the page a date. Re-check it after any change to the building (a new repair, a new drinker line, a re-levelled area) and after any season that was unusually hard on the floors.
What these criteria do not claim
A floor signed off against the four conditions above is a floor that is visibly free of the named deposits, has followed its planned water route, has not lost surface material, and has left its excluded items untouched. That is what this document can hold a supplier and an operator to. It says nothing about disease, about animal health, or about any standard set by an outside body. Those need their own standard, written by whoever owns that requirement, with their own checking method - a floor-cleaning sign-off should not be asked to carry a claim it cannot evidence.
And one caution on equipment figures. The specification rows you read on a product page belong to the unit that page describes. If your criteria depend on a supply, a connection, or a working interval, get those values for the exact unit you are being quoted, in writing, and attach them to the same page as the four conditions. A criterion built on a figure taken from a different machine is the one that fails at the patch.
