A compliance position survives on its record. Measurements are transient, the conditions under which they were taken are gone once the equipment is packed away, and what remains is a document that either allows a reader to reconstruct what was measured, where, on what basis and against which requirement, or does not. In the UAE this matters more than it might elsewhere, because several instruments carry the same contaminants at different values, one instrument uses the same numeral on two averaging bases, and one scheme sets a retest interval that runs from a compliant result rather than from a date of attendance. This page sets out what a report and record set has to contain to evidence a route, and why a bare number is unverifiable.
A report begins by stating what it is a report against. In Dubai that means naming the Technical Guidelines for Indoor Air Quality for Healthy Life, reference DM-HSD-GU119-IAQ, Version 4, issued 11 December 2024, and identifying whether the assessment is under clause 9-8-3, the voluntary route for new buildings leading to a certificate awarded by Dubai Municipality, or clause 9-8-4, which states that indoor air testing for the contaminants in Table 2 must be carried out for existing buildings.
The clause selects the table, and the table selects the values. Table 1 sets TVOC at 300 micrograms per cubic metre over 8 hours; Table 2 sets TVOC at 0.6 mg/m3 over 8 hours, carbon dioxide at 800 ppm over 8 hours, carbon monoxide at 9 ppm over 8 hours and ozone at 0.06 ppm over 8 hours.
Where Al Sa'fat clause 401.07 also applies to a listed category of existing building, the report must distinguish which results answer which instrument, because the parameter lists and the bases are not identical.
Where the Dubai guideline applies, testing must be by a company or laboratory accredited by EIAC, the Emirates International Accreditation Centre, so the accreditation of the body that produced the measurements is part of the record rather than background information.
A report that describes the testing organisation in general terms leaves a reader unable to establish that the guideline's condition was met, which is a defect in the record even where the measurements themselves were sound.
The record should also be clear about what the accredited body did and did not decide. It produced the measurements; it did not determine the building's scope position, and it did not award the certificate, which is awarded by Dubai Municipality under clause 9-8-3.
The report must show that the sampling arrangement matched the required density and geometry. Table 5 sets the count by floor area: 1 point per 500 m2 under 3,000 m2, then 8, 12, 15, 18 and 21 points across the bands to 30,000 m2, and 1 point per 1,200 m2 above 30,000 m2.
Clause 9-8-7 sets the geometry: probe 150 to 200 cm from walls and 100 to 200 cm from the floor, no point within 3.5 m of a lift or an entrance in a corridor or lobby, and measurements 3 m from doors.
Recording locations without the floor area they were derived from leaves the density unjustified, and recording a count without positions leaves the geometry unevidenced. Both halves are needed, and both are what allow a later retest to revisit the same points rather than approximate them.
Every airborne result must be reported with the basis on which it was produced. Clause 9-8-7 provides that measurements are on an 8-hour basis except where otherwise specified, and permits, where continuous eight-hour measurement is impracticable, the average of half-hour measurements at four time-slots evenly distributed over business hours. Which of those was used is part of the result.
Formaldehyde requires particular care because the guideline carries two entries: 0.01 ppm over 8 hours and 0.08 ppm, equal to 0.1 mg/m3, over 30 minutes. A report giving a single formaldehyde figure without its basis has not answered either entry unambiguously.
Under Al Sa'fat clause 401.07, six parameters are 8-hour time-weighted averages while bacteria and fungi are per-sample counts below 500 CFU per cubic metre that are not time-weighted, so a single report heading cannot describe the basis of the whole exercise.
A result quoted without its averaging period and without the instrument it answers is unverifiable. Nobody reading it can establish what requirement it was measured against or whether the method matched that requirement, so it cannot support a compliance claim even if the underlying measurement was competent.
The record should state the condition of the building during measurement: whether it was occupied and to what extent, whether ventilation systems were running in normal operating mode, and whether the measured spaces were in ordinary use.
Those facts are what make a figure interpretable and a retest comparable. A result obtained in an unoccupied building with systems in an unusual mode describes a different situation from one obtained during business hours, and the distinction cannot be recovered later if it was not recorded at the time.
The guideline's surrogate method, distributing four half-hour measurements over business hours, is itself an instruction to measure the building in operation, which reinforces why the operating condition belongs in the record.
Al Sa'fat clause 401.07 requires retesting within 5 years of the last compliant test for listed categories of existing building. Because the interval runs from the last compliant test, the prior result is not a historical curiosity: it is the document that establishes when the interval began.
Retention of prior compliant results is therefore part of the compliance record for that scheme, and a building that cannot produce its last compliant test cannot demonstrate where it sits in the cycle.
No validity period or retest interval is published for the Dubai Municipality certificate, so the five-year interval belongs to Al Sa'fat alone and should not be applied to that certificate in a record set.
Where a point failed and was addressed under clause 9-8-9 of the Municipality guideline, by complying with all the individual VOC objectives in Table 4 given over 8 hours, the record should show the route taken rather than presenting the point as an ordinary pass.
The named guideline or scheme, the clause relied on and the table the results are assessed against.
Evidence that the producing body holds EIAC accreditation where the Dubai guideline applies.
Point count derived from floor area under Table 5 and positions consistent with the clause 9-8-7 geometry.
The averaging period for every airborne value, and per-sample identification for counts that are not time-weighted.
Dubai Municipality's Technical Guidelines for Indoor Air Quality for Healthy Life, reference DM-HSD-GU119-IAQ, Version 4, issued 11 December 2024, set the tables, sampling densities and measurement basis relied on in a Dubai record set, and require testing by a company or laboratory accredited by EIAC. Al Sa'fat clause 401.07 sets a separate parameter list for listed categories of existing building and requires retesting within 5 years of the last compliant test.
No validity period or retest interval is published for the Dubai Municipality certificate; the five-year interval is an Al Sa'fat interval only.
The instrument and clause relied on, the table the results are assessed against, the accreditation of the body that produced the measurements, the sampling point count justified against floor area, the positions used, the averaging period for every result, and the occupancy and operating conditions during measurement.
Because the requirement it is measured against is defined by a period as well as a value. A figure with no stated basis cannot be placed against an eight-hour entry or a thirty-minute entry, and in the Dubai guideline formaldehyde carries both, at 0.01 ppm over 8 hours and 0.08 ppm over 30 minutes. Without the basis and the attributing instrument, no reader can confirm what was demonstrated.
Where Al Sa'fat clause 401.07 applies, retesting is required within 5 years of the last compliant test, so the prior compliant result is what establishes the start of the interval and forms part of the current record. No validity period or retest interval is published for the Dubai Municipality certificate, so no equivalent cycle should be asserted there.
As what it is. Clause 9-8-9 provides an alternative compliance route under which a sampling point failing on TVOC that complies with all the individual VOC objectives in Table 4, given over 8 hours, is regarded as passed in respect of TVOC. The record should show the route relied on rather than presenting the point as a straightforward pass against the TVOC value.