ISO 20000 is an internationally recognized standard that specifies the requirements for an organization’s IT service management (ITSM) system. An ITSM is a set of processes and practices that are used to plan, design, deliver, operate, and control IT services. The standard aims to improve the delivery of IT services by providing a comprehensive and coordinated approach to managing processes, people, and technology. ISO 20000 certification is a validation ensuring that an organization’s ITSM system meets the requirements of the standard.
https://www.iascertification.c....om/service/iso-20000

Organizations that are certified to ISO 13485 need to periodically conduct internal audits to check if the quality management system is being followed as per the requirements of the standard. An internal audit is an important tool for maintaining the effectiveness of the quality management system.
https://www.iascertification.c....om/iso-13485-interna

ROHS is the acronym for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products. All applicable products in the EU market after July 1, 2006 must pass RoHS compliance.
https://www.iascertification.c....om/rohs-certificatio