Published 2026-02-02 · Slip Testing Scotland
The five elements that matter
A properly formatted UKAS-accredited BS 7976 / BS EN 16165 pendulum test report contains many things, but you only need five to make decisions:
- The test areas covered and their locations
- The PTV for each area under dry conditions
- The PTV for each area under wet conditions
- The classification against UKSRG thresholds
- The accreditation references (UKAS schedule, calibration, engineer qualifications)
Everything else in the report is supporting context and traceability.
Reading the PTV tables
Each tested area appears as a row or a separate page in the report, usually accompanied by a photograph showing where the test was performed. For each area:
Dry PTV — the average Pendulum Test Value measured in dry conditions, typically averaged across multiple test runs. This is the baseline.
Wet PTV — the average PTV measured with the surface wetted with clean water. This number matters most for real-world Scottish slip risk — Scottish weather means wet PTV is the relevant operational value for much of the year.
You may also see:
Slider — typically "96" for shod environments or "55" for barefoot environments like pool decks and shower trays.
Direction — some reports test in multiple directions to account for grain, pattern, or direction of traffic flow.
Classifying each number
Against the UK Slip Resistance Group (UKSRG) and HSE thresholds, which apply equally in Scotland:
- PTV 36 or above — low slip potential. Compliant.
- PTV 25 to 35 — moderate slip potential. Requires active risk management (matting, signage, cleaning regime).
- PTV below 25 — high slip potential. Unacceptable, requires immediate action.
Classification applies independently to dry and wet PTV. A floor with dry PTV 45 and wet PTV 22 is not safe — the wet reading is what matters because real-world Scottish slip incidents overwhelmingly occur in wet conditions.
What to look for in the accreditation section
A legitimate UKAS-accredited report will clearly display:
UKAS logo and schedule number — the testing laboratory’s unique UKAS reference (ours is 7933). The UKAS register is publicly searchable at ukas.com.
Equipment calibration references — the serial number and most recent calibration date of the pendulum instrument used. Calibration should be within the last 12 months.
Engineer qualifications — the name and training level of the engineer who conducted the test.
Method reference — should cite BS 7976 / BS EN 16165.
Environmental conditions — temperature and humidity at time of testing. Scottish winter testing should show accordingly lower ambient temperatures.
If any of these elements is missing, the report is not meeting UKAS standards regardless of what logo it displays.
What to do if values fall below 36 wet
If wet PTV is 25–35 (moderate)
This is actionable but not an emergency. Review the cleaning regime, matting placement, signage, and user flow for the tested area. Most Scottish areas in this range can be brought above PTV 36 wet through non-destructive measures — better matting, revised cleaning chemicals, improved drainage, updated signage.
If wet PTV is below 25 (high slip potential)
This is unacceptable and requires action. Options include surface treatment (chemical or mechanical anti-slip), matting, physical barriers preventing wet-condition access, or flooring replacement. A UKAS-accredited provider will not sell you the treatment — but they can test before and after any treatment to verify the intervention actually worked.
If a previously-compliant Scottish area now fails
Most common causes in Scottish hospitality, retail, and healthcare: cleaning chemical change, matting degradation (particularly after winter), wear from increased footfall, or gradual polishing of the surface over time. Investigate the cause before applying a fix — a floor that has silently polished over 10 years will polish again after re-treatment unless the underlying cause is addressed.
Scottish-specific: keeping the report as evidence
A UKAS-accredited slip test report is legal evidence in Scottish courts. Store it with your H&S records: risk assessments, insurance renewal packs, O&M documentation.
For Scottish operators, retention policy is especially important given the 5-year Scottish limitation under the Prescription and Limitation (Scotland) Act 1973. Reports should be retained for at least six years, and ideally longer — a slip incident in April 2026 can generate a claim up to April 2031, and the defender needs contemporaneous evidence of the floor’s condition at or before the date of the incident.
A five-year run of annual UKAS-accredited testing showing consistent compliance is a powerful defence under Scottish court procedure. It establishes not just that the floor was OK on one specific date, but that the floor was actively managed across the entire limitation window.
Sharing reports with Scottish insurers
Most UK commercial insurers covering Scottish risk accept UKAS-accredited slip test reports as evidence of due diligence. At renewal, share the report alongside a one-page summary showing sites tested, dates, PTV ranges, and any remediation actions taken. Scottish underwriters respond particularly well to documented records that align with the 5-year limitation period — concise summaries with reports underneath substantially strengthen the renewal position.
When to re-test a Scottish premises
Annual testing is the minimum for any Scottish commercial premises. High-traffic and wet-environment Scottish sites often benefit from bi-annual testing, particularly to capture Scottish winter worst-case conditions. Re-testing is also recommended after:
- Any flooring change or refurbishment
- Any cleaning regime change or chemical switch
- Any slip incident (documented pre- and post-remediation testing is particularly valuable)
- Significant wear event (e.g. after a year of heavy winter or after major event hosting)
- Before any insurance renewal cycle (fresh data supports better terms)
Scottish-specific scenarios worth noting
Distillery reports
A distillery slip test report typically covers multiple zone categories: visitor centre (hotel-like profile), production (industrial wet profile), and bottling (industrial wash-down profile). Each zone category applies separately. A report showing acceptable visitor centre PTV but sub-threshold production floor PTV is not acceptable for the production environment regardless of the visitor centre reading.
Oil & gas reports
Aberdeen and Grangemouth oil and gas facility reports include elevated walkways, helidecks, and stair towers that carry high-consequence slip risk. Sub-threshold PTV in these zones requires urgent action regardless of compliant PTV in adjacent lower-risk areas.
NHS Scotland and care home reports
Given the amplified consequence of falls for elderly or frail users, we often recommend targeting PTV 40+ wet in resident-circulation zones rather than the standard 36 compliance threshold. The report should be read against this more conservative clinical governance target, not just the minimum UKSRG threshold.
One thing NOT to do
Do not clean, treat, or alter a Scottish floor immediately before a test with the intention of improving the result. This produces a PTV that does not reflect normal operational conditions — and any subsequent Scottish Sheriff Court or Court of Session litigation will be defended against whatever the floor actually was during the incident, not what it tested at after deep cleaning. The test must reflect normal conditions, not staged ones.
The Scottish bottom line
A UKAS-accredited slip test report is a Scottish legal document. Read it for PTV numbers, act on anything below 36 wet, retain it for at least six years, and build a consistent year-on-year record. Under the 5-year Scottish limitation, this documented pattern is what transforms a single test result into a defensible floor safety programme.