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Surface active agents — Preparation of water with known calcium hardness

Overview ISO 2174:1990 - "Surface active agents - Preparation of water with known calcium hardness" specifies a laboratory method to prepare and verify aqueous solutions of defined calcium hardness f…

Stationary source emissions — Sampling and determination of mercury compounds in flue gas using gold amalgama…

Overview ISO 21741:2020 - "Stationary source emissions - Sampling and determination of mercury compounds in flue gas using gold amalgamation trap" defines a validated, periodic method for measuring m…

Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty eval…

Stationary source emissions. Sampling and determination of mercury compounds in flue gas using gold amalgamat…

Electronic record books for ships. Technical specifications and operational requirements.

Composites and metal assemblies. Galvanic corrosion tests of carbon fibre reinforced plastics (CFRPs) related…

Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty eval…

Overview - ISO 21748:2017 (Guidance) ISO 21748:2017 provides practical guidance for evaluating measurement uncertainty using performance data from collaborative studies (ISO 5725‑2). It describes a “…

Composites and metal assemblies — Galvanic corrosion tests of carbon fibre reinforced plastics (CFRPs) relate…

Overview ISO 21746:2019 - "Composites and metal assemblies - Galvanic corrosion tests of carbon fibre reinforced plastics (CFRPs) related bonded or fastened structures in artificial atmospheres - Sal…

Statistical methods — Process performance and capability statistics for measured quality characteristics

Space systems — Launch window estimation and collision avoidance

Overview ISO 21740:2025 - Space systems - Launch window estimation and collision avoidance - defines the safety LCOLA (launch collision avoidance) requirements for identifying safe launch opportuniti…

Electronic record books for ships — Technical specifications and operational requirements

Overview ISO 21745:2019 - Electronic record books for ships defines minimum technical specifications and operational requirements for onboard electronic record books (ELRB). Developed in response to…

Guidance for the use of repeatability, reproducibility and trueness estimates in measurement uncertainty esti…

1 Scope The International Standard gives guidance for — evaluation of measurement uncertainties using data obtained from studies conducted in accordance with ISO 5725-2:1994; — comparison of collabor…

Statistical methods. Process performance and capability statistics for measured quality characteristics

This International Standard describes a procedure for the determination of statistics in order to estimate the quality capability of product and process characteristics. The process results of these…