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What is ISO 13485? An easy-to-understand guide to preparing for the medical device standard.

SGS Thailand BlogAugust 10, 2026

ISO 13485 is an international quality management system standard for the medical device industry. It covers design, production, installation, servicing, documentation control, risk management, and regulatory requirements. The standard is suitable for medical device manufacturers, importers, distributors, service providers, and suppliers.

What is ISO 13485? Why do medical device manufacturers need to know about it?

ISO 13485 is an international standard specifying requirements for a Quality Management System (QMS) designed for the medical device industry. It covers research and development, implementation, and the maintenance of documentation related to the QMS and medical devices, making it suitable for manufacturers, service providers, distributors, and suppliers of medical devices.

Applying and adhering to the ISO 13485 standard enables organizations to comply with the regulations and legal requirements necessary to enter the medical device markets of Thailand, the region, and the rest of the world.

The quality of medical devices directly impacts their performance as well as the safety of patients, users, and other individuals. Consequently, relevant regulations and laws such as the Medical Device Act which require manufacturers, importers, and distributors of medical devices to establish and maintain a quality management system within their organizations.

Furthermore, regulations and laws concerning medical devices across various regions and countries worldwide align with and reference the ISO 13485 standard in several key aspects as follows:

  • Canada, Australia, Japan, Brazil, and the United States: Manufacturers intending to market medical devices in these countries must comply with the Medical Device Single Audit Program (MDSAP) regulations, which incorporate ISO 13485:2016 standards as part of the regulatory requirements.
  • United States of America: Manufacturers intending to market medical devices in the US must comply with the FDA’s Quality Management System Regulation (US FDA QMSR), which incorporates ISO 13485:2016 as part of the regulation.
  • European Union: Manufacturers intending to market products in the EU must comply with the Medical Device Regulation (MDR) and the In-Vitro Diagnostic Medical Device Regulation (IVDR), both of which incorporate the ISO 13485:2016 standard as part of their regulatory requirements.
Surgery in Operating Room

What are the benefits of obtaining ISO 13485 Certificate?

Achieving ISO 13485 certificate benefits manufacturers, distributors, and service providers of medical devices in terms of regulatory acceptance, business operations, and credibility. The benefits an organization gains include the following:

  • Expand Access to Global Medical Device Markets

    Organizations can enter the global medical device market and meet the regulatory requirements of various countries; it also serves as a crucial stepping for medical device registration in key regions and markets such as Europe (EU MDR), the United States (FDA QMSR), Canada, Brazil, Australia, and Japan (MDSAP)

  • Increase Export Opportunities and Business Growth

    It increases export opportunities, as most domestic and international business partners and distributors require manufacturers to obtained ISO 13485 certificate as a condition for doing business.

  • Enhance Credibility and Competitive Advantage

    It builds organizational credibility and a positive image while assuring the safety of medical devices for physicians, hospitals, clinics, and patients. There can be confident in the consistent safety and quality of the products and maintain standards. This creates a competitive advantage and differentiates the organization from competitors without obtaining ISO 13485 certificate, while also increasing opportunities to win tenders from government agencies or large hospitals.

  • Improve Risk Management and Product Safety

    Enhance risk management efficiency such as risk reduction and control for medical devices by implementing the ISO 14971 standard. This risk management system covers the entire product lifecycle, helping to minimize the occurrence of non-compliant products, reduce costs associated with errors, lower production waste, and decrease the likelihood of product recalls, while also facilitating the preparation of adverse event (vigilance) reports. It enables the organization to maintain a systematic document storage and production history record-keeping system (Medical Device Record). Furthermore, the organization is always prepared for inspections by government agencies regulating medical devices, such as the Thai FDA.

  • Build a More Reliable and Resilient Supply Chain

    Strengthening the supply chain through systematic partner screening provides the organization with clear criteria for selecting and evaluating raw material suppliers and managing contract manufacturing agreements. Furthermore, for organizations acting as contract manufacturers for leading global medical device companies, obtaining ISO 13485 certificate serves to attract more major global brands to engage their manufacturing services.

Steps to Implement the ISO 13485 Standard and Obtain ISO 13485 Certificate

The process of establishing an ISO 13485 standard system and obtaining the certificate consists of five main steps as follows:

  1. Step 1: Preparation and Planning

    Organizational management must demonstrate commitment to implementing the ISO 13485 standard by appointing a Quality Management Representative (QMR) and establishing a core team with representatives from all departments. This involves conducting training on ISO 13485 requirements for employees, preparing and maintaining documentation for the medical device risk management system (ISO 14971), and assessing the organization's current status and existing management systems against ISO 13485 requirements to identify areas for improvement or supplementation.

  2. Step 2: Defining and Establishing the Documentation System

    The organization must establish quality system documentation including a Quality Manual, Standard Operating Procedures (SOPs), and Work Instructions (WIs) which in compliance with applicable regulations and laws governing medical devices. Additionally, the organization must conduct a risk analysis for medical devices, considering their product lifecycle of medical device, by applying a risk management system to the assessment of both the products and the manufacturing processes.

  3. Step 3: Implementation of the established system and document retention.

    The organization carries out operations according to established procedures and maintains records of production or service delivery data, including quality inspection results, and verifies the consistency of the production or service process (process validation).

  4. Step 4: Internal Audit Evaluation and Continuous Improvement

    The organization conducts internal audits by appointing an internal audit team to audit every department, identifying non-conformities and corrective measures. Additionally, a management review is held at a meeting which top management attend to evaluate the overall readiness and effectiveness of the management system.

  5. Step 5: Certification Audit

    The assessment process conducted by an external Certification Body (CB) consists of two stages: the Stage 1 Audit, which evaluates the readiness of the management system and documentation prior to certification; and the Stage 2 Audit, an on-site assessment to verify that the organization’s management system aligns with its documentation and meets the relevant certification standards. Upon successful certification, the organization is obtained an ISO 13485 certificate valid for three years, subject to mandatory annual surveillance audits.

Comparison of the differences between ISO 9001 and ISO 13485 standards.

Both ISO 9001 and ISO 13485 can help elevate an organization, however, ISO 13485 is founded upon and utilizes the structural requirements of the ISO 9001:2008 quality management system. Furthermore, the objectives and target organizations for their implementation differ as follows:

  • The ISO 9001 management system focuses on and prioritizes customer satisfaction, whereas the ISO 13485 management system focuses on and prioritizes product safety and performance ensuring the safety of patients and medical device users as well as compliance with regulatory requirements.
  • The ISO 9001 standard is applicable to organizations across all industries and sizes such as company involved in manufacturing, service provision, and software design whereas ISO 13485 applies to manufacturers, distributors, service providers, and designers of medical related software.

FAQs

Under Thai legal and public health definitions such as Thai FDA. There are a wide range of products are classified as medical devices. This category encompasses not only surgical instruments or hospital beds but also items used in everyday life. The principles for determining whether a product qualifies as a medical device focus on any item intended by the manufacturer for use on humans for the diagnosis, prevention, monitoring, therapy, treatment, or alleviation of disease or injury; this may also include products for contraception. Products classified as medical devices can be categorized as follows:

1. Medical devices for daily use (home-use or consumer devices) are products that can be readily purchased at pharmacies or department stores for personal health care at home, such as follows:

  • Screening kits: COVID-19 test kits, pregnancy test kits, blood glucose test kits
  • Measurement and monitoring devices include blood pressure monitors, pulse oximeters, and thermometers
  • Hygiene and protective products include medical face masks, condoms, and lubricant gel
  • Eye care products include contact lenses, contact lens solution, and eyeglasses

2. Medical consumables or disposables are single-use items utilized in both home and healthcare settings such as follows:

  • Cotton wool, gauze, adhesive bandages, medical tape.
  • Syringe, Hypodermic needle
  • Medical gloves (examination gloves/surgical gloves)
  • IV tubing, urine collection bag

3. Rehabilitation and mobility aids are devices that assist with movement or physical recovery such as follows:

  • Wheelchairs (both manual and electric)
  • Walking cane, walker, crutches
  • Hospital bed and pressure-relieving air mattress
  • Joint supports (braces/supports), such as neck collars and back support belts

4. Large-scale hospital equipment refers to high-technology devices that must be operated by medical personnel, such as follows:

  • Diagnostic tools include X-ray machines, CT scanners, MRI scanners, and ultrasound machines
  • Lifesaving and treatment equipment includes ventilators, defibrillators (AEDs), and dialysis machines
  • Operating room instruments include scalpels, anesthesia machines, and surgical lights

5. Implantable devices are devices that a doctor must surgically implant into a patient's body, such as follows:

  • Pacemaker
  • Artificial hip joints, artificial knee joints, silicone breast implants
  • Dental implants, intraocular lenses

6. Currently, Software as a Medical Device (SaMD) includes applications or computer programs specifically designed to analyze disease-related results, such as follows:

  • AI software that assists doctors in interpreting X-ray images to diagnose cancer, etc.

Not every small company necessarily requires ISO 13485 certification, however, practical requirements depend on the medical device regulations of each country. For instance, the Thai FDA mandates that manufacturers or importers of certain types of medical devices implement a quality management system that is equivalent to or based on the ISO 13485 standard.

  • For exporting medical device products or components to international markets—particularly the European Union, the United States, Canada, Australia, or Japan—obtaining ISO 13485 certification is a crucial step, alongside compliance with the specific legal requirements of the destination country, in securing authorization to market medical devices in those regions.
  • There is an opportunity to become a contract manufacturer for leading global medical device companies, these companies typically require suppliers or contract manufacturers to hold ISO 13485 certification to ensure the safety of medical device production and consistent manufacturing standards.
  • Regarding the opportunity to win tenders for government projects or large hospitals, one of the conditions for participation is that the bidding company must obtain ISO 13485 certificate.

About SGS

SGS is the world’s leading Testing, Inspection and Certification company. We operate a network of over 2,500 laboratories and business facilities across 115 countries, supported by a team of over 100,000 dedicated professionals. With more than 145 years of service excellence, we combine the precision and accuracy that define Swiss companies to help organizations achieve the highest standards of quality, compliance and sustainability.

Our brand promise – when you need to be sure – underscores our commitment to trust, integrity and reliability, enabling businesses to thrive with confidence. We proudly deliver our expert services through the SGS name and a portfolio of trusted specialized brands, including Applied Technical Services, Brightsight, Bluesign and Nutrasource.

SGS is publicly traded on the SIX Swiss Exchange under the ticker symbol SGSN (ISIN CH1256740924, Reuters SGSN.S, Bloomberg SGSN SW).

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