ISO 14644-14:2026 describes a methodology for assessing whether equipment is suitable for use in cleanrooms and associated controlled environments, based on airborne particle concentration. It is used when you need to understand how a tool, machine, or component could influence cleanroom particle cleanliness during installation, operation, or maintenance activities.
If you are aligning an equipment purchase or qualification plan to a specific cleanroom class and are not sure how to translate the standard into a practical measurement setup, talk with our team about your application and the instrumentation typically used.
ISO 14644-14:2026 — Cleanrooms and associated controlled environments — Part 14: Assessment of suitability for use of equipment by airborne particle concentration
ISO 14644-14 is part of the ISO 14644 cleanroom standards series. It focuses on the suitability of equipment for use in controlled environments based specifically on airborne particle cleanliness, using the particle concentration classification framework defined in ISO 14644-1.
This document is assessment-focused: it helps teams evaluate equipment against airborne particle cleanliness expectations, rather than prescribing how to design equipment or how to run a manufacturing process.
Quick definition
ISO 14644-14 in one line: A methodology for assessing whether equipment is suitable for use in a cleanroom, based on its impact on airborne particle concentration (referencing ISO 14644-1 particle cleanliness classes and particle size ranges).
What this standard covers
ISO 14644-14 addresses equipment such as machinery, measuring equipment, process equipment, components, and tools that may be brought into or operated within a cleanroom or controlled environment.
Core focus: airborne particle cleanliness, evaluated in the particle size range used by ISO 14644-1 (from 0.1 µm up to 5 µm and larger).
Not the focus of ISO 14644-14: biocontamination, decontamination-agent compatibility, cleanability of equipment/materials, equipment design/material selection requirements, material physical properties (for example electrostatic behavior), process optimization, statistical method selection, or local safety/regulatory protocols.
Why this standard matters in testing
Cleanroom programs often control airborne particle concentration tightly to protect sensitive products and processes. Even well-designed equipment can introduce particles through motion, friction, airflow disruption, wear surfaces, or maintenance actions.
ISO 14644-14 gives QA/QC teams, facilities engineers, and equipment owners a structured way to evaluate particle-related suitability so that equipment decisions (selection, acceptance, relocation, change control, and requalification) are made with measurable evidence tied to ISO cleanroom classifications.
Common materials, product types, or applications covered
This standard is typically applied in industries that depend on particle-controlled environments, where equipment selection and qualification can impact yield, sterility assurance strategies, or contamination control objectives.
Common application areas: semiconductor and microelectronics manufacturing, pharmaceuticals and biopharmaceutical processing, medical device production, precision optics, and other high-cleanliness assembly or packaging operations.
Common test or verification workflow
ISO 14644-14 supports an equipment suitability assessment workflow anchored to an intended cleanroom particle cleanliness class.
Common workflows: defining the target cleanroom class per ISO 14644-1, selecting equipment operating states to evaluate (for example idle vs. operating), planning where and how particle concentration measurements will be taken around/near the equipment, collecting airborne particle concentration data with appropriate particle size channels, and evaluating whether the equipment can be used without compromising the particle cleanliness expectations for the controlled environment.
Because regulatory or customer requirements can add constraints, assessment plans are often adapted to site-specific contamination control strategies and documentation needs.
Equipment commonly used for this standard
ISO 14644-14 is centered on airborne particle concentration, so the primary equipment involved is particle measurement and the practical accessories needed to run stable, repeatable checks around equipment in a controlled environment.
Common equipment: airborne (laser) particle counters capable of measuring in the ISO 14644-1 particle size range, sampling accessories (tubing, probes, and mounting hardware appropriate for the measurement locations), and data capture/reporting tools to document results against acceptance criteria defined for the assessment.
Depending on how the assessment is set up, teams may also use localized sampling fixtures or enclosures to help control measurement geometry and operating conditions around the equipment being evaluated.
If you are specifying particle counter channels, flow rates, or sampling configurations for an equipment qualification or procurement package, you can request a detailed quote for an instrument and accessory set matched to your cleanroom workflow.
How to read this designation or revision
ISO 14644-14 identifies Part 14 within the ISO 14644 cleanrooms series.
ISO 14644-14:2026 indicates the 2026 edition of the document (Edition 2). This edition supersedes the earlier ISO 14644-14:2016, which is shown as withdrawn on the ISO catalogue record.
Revision sensitivity: equipment assessment plans, reporting expectations, and procurement documentation should cite the exact edition-year required by your customer, regulator, or internal validation program.
Related standards, methods, or frameworks
ISO 14644-14 is directly tied to ISO 14644-1, which defines cleanroom air cleanliness classes by particle concentration and the particle size ranges used for classification.
In practice, equipment suitability work is often coordinated with site cleanroom monitoring programs, equipment qualification protocols, and contamination control documentation so results can be maintained through change control and requalification cycles.
Discuss your ISO 14644-14 assessment setup
If you need help scoping a practical measurement approach (instrument selection, sampling accessories, and documentation-ready reporting) for an ISO 14644-14 equipment suitability assessment, contact our team to review your cleanroom class target and equipment operating conditions.