Specify the acoustic checks
Give the meter class as marked, normally used sound levels and any frequencies required by your procedure. State which frequency weightings you use, such as A or C, and whether fast or slow time weighting matters. RTS will review the requested tests and confirm what can be quoted.
Identify the field calibrator separately
If the kit includes a sound calibrator, list its model, serial number and microphone adaptor. Say if it needs its own calibration. A routine field check at one tone gives a different set of information from a periodic test covering several levels or frequencies.
Personal noise dosimeters and shift records
For a personal noise dosimeter, identify the badge or body unit, microphone and reader or dock used to retrieve results. Copy the settings from the approved survey procedure: frequency weighting, criterion level, threshold, exchange rate and measurement duration where the instrument uses them. These settings affect the reported dose, so a percentage value without its configuration is incomplete.
Say whether your request covers the acoustic response, the stored time history, the integrated result or a stated combination. Include the instrument's previous certificate and an anonymised report layout if that helps identify the fields you rely on. RTS will review the model and requested checks before confirming the work. Keep the site team's field-check records with the instrument history; the calibration enquiry does not itself assess a person's exposure or determine workplace compliance.
Keeping a survey kit together
Nominate one person to release the complete survey kit. Group the microphone, preamplifier and accessories under the correct meter before arranging transport. Include any field-check record already taken and identify equipment that belongs to a separate owner.
Measurement microphones
A microphone used for measurement should be identified with its preamplifier, power arrangement and any required coupler. Specify whether the enquiry concerns sensitivity at selected frequencies or a broader response. Keep the pressure or sound-field convention from the previous report. RTS must review the acoustic method for the complete assembly; an electrical signal injected into a sound-level display does not establish the microphone response.