The obligation to prevent contamination of equipment or product carries forward from §820.70(e). Organizations with existing contamination-control procedures that address the triggered device conditions retain the core substance of those controls; the documentation obligation now requires device-specific specifications rather than a single general procedure.
§7.5.2 restructures contamination control from a universal obligation to a device-conditional requirement with five explicit trigger conditions. Organizations must perform and document an applicability assessment for each device. Where triggered, documented cleanliness requirements with acceptance criteria are required — not merely a cleaning procedure. The §6.4.1 pre-cleaning work environment carve-out and explicit process-agent removal condition are both new.
Auditors will ask for the applicability determination against all five trigger conditions. For triggered devices, they will test whether documented cleanliness specifications with acceptance criteria exist — not only SOPs describing how to clean. Process agent identification and residual-limit documentation will also be tested, as will the distinction between the cleaning procedure and the cleanliness requirement.
Maps to
QMSR / ISO 13485: §820.70(e) Contamination control.
ISO 13485: §7.5.2 Cleanliness of product
Requirement text
The organization shall document requirements for cleanliness of product or contamination control of product if: a) product is cleaned by the organization prior to sterilization or its use; b) product is supplied non-sterile and is to be subjected to a cleaning process prior to sterilization or its use; c) product cannot be cleaned prior to sterilization or its use, and its cleanliness is of significance in use; d) product is supplied to be used non-sterile, and its cleanliness is of significance in use; e) process agents are to be removed from product during manufacture. If product is cleaned in accordance with a) or b) above, the requirements contained in 6.4.1 do not apply prior to the cleaning process.
Why this clause exists
Cleanliness and contamination control are device-specific concerns: most general-purpose equipment or software products have no cleanliness requirements, while medical devices — particularly those that are implanted, contact sterile body sites, or are used non-sterile but with cleanliness-sensitive applications — face failure modes directly tied to contamination. ISO 13485 §7.5.2 is structured as a conditional requirement: it is triggered by specified device characteristics or production conditions, not applied universally.
The five trigger conditions cover the practical universe of cleanliness-relevant device production scenarios. Conditions (a) and (b) address pre-sterilization cleaning — whether performed by the manufacturer or by the customer on a non-sterile-supplied product — where the cleaning process itself must be documented and controlled. Conditions (c) and (d) address devices where cleaning before use or sterilization is not feasible but cleanliness remains clinically significant, requiring that cleanliness requirements be established despite the absence of a cleaning step. Condition (e) addresses process agents — lubricants, mold-release compounds, machining fluids, adhesive carriers — that must be removed during manufacture and whose residual presence in the finished device would be unacceptable.
The clause at the end of §7.5.2 — that work environment requirements of §6.4.1 do not apply prior to the cleaning process for conditions (a) and (b) — is a practical carve-out: if cleaning will remove the contamination accumulated during pre-cleaning operations, requiring a controlled work environment for those pre-cleaning operations would be redundant.
What changed
§820.70(e) — Part 820 (legacy)
"Contamination control. Each manufacturer shall establish and maintain procedures to prevent contamination of equipment or product by substances that could reasonably be expected to have an adverse effect on product quality."
§7.5.2 — ISO 13485:2016 (current)
"The organization shall document requirements for cleanliness of product or contamination control of product if: a) product is cleaned by the organization prior to sterilization or its use; b) product is supplied non-sterile and is to be subjected to a cleaning process prior to sterilization or its use; c) product cannot be cleaned prior to sterilization or its use, and its cleanliness is of significance in use; d) product is supplied to be used non-sterile, and its cleanliness is of significance in use; e) process agents are to be removed from product during manufacture. If product is cleaned in accordance with a) or b) above, the requirements contained in 6.4.1 do not apply prior to the cleaning process."
Common gaps (what we see in audits)
- No Applicability Assessment Against §7.5.2 Trigger Conditions — The organization has not formally assessed its device(s) against the five §7.5.2 trigger conditions and documented the determination. Even where cleanliness controls exist in practice, the absence of a documented applicability determination leaves the organization unable to demonstrate the scope decision.
- Cleaning Procedures Exist But Cleanliness Requirements Are Not Documented — The organization performs cleaning operations and has general contamination control procedures but has not documented device-specific cleanliness specifications with acceptance criteria. ISO 13485 §7.5.2 requires documented requirements for cleanliness — specifications with defined acceptance criteria — not merely procedural instructions for how to clean.
- Process Agent Removal Not Addressed in Device Documentation — Manufacturing processes use lubricants, mold-release agents, machining fluids, or other process materials that may remain as residues on or in the device. These process agents are not identified, and there are no documented removal requirements or verification methods. §7.5.2(e) requires documented requirements where process agents are to be removed.