Patient Monitor Calibration 2026: ECG, NIBP, SpO2, Respiration, Invasive Pressure and NABL Requirements Short answer: Patient monitor calibration evaluates individual measurement channels rather than treating the monitor as one generic instrument. NABL 126 identifies heart-rate accuracy, respiration-rate accuracy, NIBP leak, NIBP static pressure, NIBP pressure relief, dynamic NIBP repeatability, SpO2 and invasive pressure within its patient-monitor framework and lists an electrical-safety analyzer plus patient-monitor simulator as reference equipment. In 2026, pulse-oximeter equipment is covered by the new ISO 80601-2-61:2026 Edition 3, while multifunction patient monitors are covered by IEC 80601-2-49:2018+A1:2024. A bedside monitor can display several physiological quantities at the same time, but those channels do not all work on the same measurement principle. ECG heart rate is an electrical-signal measurement. NIBP uses pressure and an algorithm. SpO2 uses optical puls...

Diagnostic radiology quality assurance NABL 136 Diagnostic X-Ray QA Testing 2026: Accreditation, AERB Requirements and Test Parameters Updated: 13 September 2026 Short answer: NABL 136 is the specific-criteria document for accreditation of Quality Assurance Testing Facilities that test diagnostic radiology X-ray equipment. The current NABL register lists Issue 02 dated 24 August 2021 with Amendment 01 dated 4 April 2025, which remains the current published version in September 2026. The criteria supplement ISO/IEC 17025:2017 and cover QA work including type-approval demonstration, manufacturer-premise testing, acceptance testing, periodic QA and QA after major repair, servicing or maintenance. AERB separately requires periodic QA of diagnostic X-ray equipment and currently states that routine QA should be carried out at least once every two years and after repairs with radiation-safety implications. Diagnostic X-ray quality assurance is not only an...

Air-quality metrology and calibration NABL 138 Air Quality Monitoring Equipment Calibration 2026: Gas Analyzers, PM Monitors and Traceability Updated: 13 September 2026 Short answer: NABL 138 is the specific-criteria document for calibration laboratories working on air-quality monitoring equipment. The current NABL register lists Issue 01 with Amendment 02 dated 3 November 2025, which remains the current published version in September 2026. It covers gas analyzers such as NOx, CO, SO2, O3, NH3 and benzene analyzers, along with PM2.5 and PM10 analyzers. The criteria require traceable reference standards, controlled dilution or calibration systems, suitable reference equipment and ISO/IEC 17025 laboratory competence. Air-quality data can influence public-health information, pollution-control decisions, industrial compliance and environmental policy. But an air-quality monitoring station does not measure pollution simply because a number a...

Software, AI and cybersecurity accreditation NABL Software and IT System Testing Laboratory Accreditation 2026: AI, Cybersecurity, VAPT and ISO 17025 Updated: 13 September 2026 Short answer: NABL amended NABL 137, "Specific Criteria for Accreditation of Software & IT System Testing Laboratories", on 28 April 2026. The current criteria apply with ISO/IEC 17025:2017 and explicitly cover areas including AI/ML and large language models, IoT, blockchain, embedded systems, medical software, cybersecurity, VAPT, cloud security, interoperability, secure coding and software performance. The laboratory must demonstrate not only software-testing skill, but also controlled test environments, competent personnel, validated methods, configuration-managed test tools, secure handling and reliable test records. Software testing is increasingly becoming a conformity-assessment problem. A modern software product may control a medical device, ...