Minimizing inspection costs through sequential probability ratio testing for attribute quality characteristics. Introduction to ISO 28591 ISO 28591:2017 specifies sequential sampling plans for inspection by attributes, indexed by producer’s risk quality (PRQ) and consumer’s risk quality (CRQ). The standard replaced…

Systematic guidelines for creating effective wayfinding and signage networks in built environments, from decision point analysis to performance evaluation. 1. Scope and System Architecture ISO 28564-2:2016 provides comprehensive guidelines for the design and implementation of public information guidance systems —…

Design principles, graphical symbols, and placement requirements for location identification signage 1. Scope and Design Principles of ISO 28564-3 ISO 28564-3 specifies the design principles, graphical symbols, and placement requirements for location identification signage in public buildings, transportation hubs, commercial…

Design, performance, and installation requirements for emergency exit signage 1. Purpose and Scope of ISO 28564-4 ISO 28564-4 specifies the design, performance, and installation requirements for emergency exit signage used in buildings, underground structures, transportation vehicles, and maritime vessels. As…

A comprehensive guide to wayfinding sign installation principles, positioning methods, and assessment criteria Introduction to ISO 28564-4:2023 ISO 28564-4:2023 is the fourth part of the ISO 28564 series, which addresses public information guidance systems — the comprehensive wayfinding infrastructure that…

A technical guide to flexible RFID data encoding for modern library systems Introduction to ISO 28560-2:2023 and Library RFID Encoding ISO 28560-2:2023 is the second part of the ISO 28560 series, which provides a comprehensive data model and encoding rules…

Understanding the basic block and extension block architecture for interoperable library RFID Introduction to ISO 28560-3:2024 Fixed-Length Encoding ISO 28560-3:2024 specifies a fixed-length encoding scheme for RFID tags used in library environments. Unlike the flexible object-identifier-based approach of ISO 28560-2,…

A technical specification for UHF RFID tag encoding using ISO/IEC 15962 with partitioned memory architecture Introduction to ISO/TS 28560-4:2023 ISO/TS 28560-4:2023 is a Technical Specification that defines encoding rules for UHF RFID tags used in library environments. Unlike ISO 28560-2…

A comprehensive guide to the geometric construction rules, visual consistency requirements, and engineering implementation of public information symbol systems. 1. Overview and Scope ISO 28564-1:2010 establishes the fundamental design elements for public information symbols used in signage systems across public…

A comprehensive guide to proper assembly, flushing, and commissioning of marine hydraulic systems to ensure cleanliness and reliability. Introduction to ISO 28522 ISO 28522:2009, developed by ISO/TC 8 (Ships and marine technology), provides essential guidance for the assembly and flushing…

Standardized methods for dynamic and static fluid sampling to determine cleanliness and particle contamination in shipboard oil systems. Introduction to ISO 28523 ISO 28523:2009, prepared by ISO/TC 8/SC 3, specifies methods for dynamic and static extraction of fluid samples from…

Standard method for trace-level analysis of priority PAH pollutants in drinking water, groundwater, and surface water using gas chromatography-mass spectrometry. Introduction to ISO 28540 ISO 28540:2011, developed by ISO/TC 147/SC 2, specifies a GC-MS method for the determination of 16…

The international standard for RFID data model in library applications — from item identification to privacy and migration strategies. Introduction to ISO 28560-1 ISO 28560-1:2023 is the third edition of the foundational standard for RFID implementation in libraries, developed by…

The standard for web archival storage: understanding the WARC (Web ARChive) file format specification 1. Introduction to ISO 28500 and the WARC File Format ISO 28500:2017 specifies the WARC (Web ARChive) file format, the international standard for storing web archival…

Guidance for achieving and verifying cleanliness in marine lubricating oil systems 1. Introduction to ISO 28520 and Marine Lubricating Oil System Cleanliness ISO 28520:2009 provides comprehensive guidance for flushing of lubricating oil systems in ships and marine installations, and for…

Comprehensive guidance for pipe cleaning, flushing, and cleanliness verification in marine hydraulic systems 1. Introduction to ISO 28521 and Hydraulic System Cleanliness ISO 28521:2009 specifies pipe cleaning and cleanliness levels for hydraulic oil systems in ships and marine technology. Hydraulic…

Understanding the ISO designation system for poly(phenylene ether) thermoplastics 1. Introduction to ISO 28941-1 and PPE Materials ISO 28941-1:2008 establishes a standardized designation system for poly(phenylene ether) (PPE) thermoplastic materials used in moulding and extrusion applications. PPE is a high-performance…