Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
Standardised linear dimension measurement for building insulation materials Scope and Principle of ISO 29465 ISO 29465:2022 specifies a straightforward yet rigorously defined method for determining the length and width of full-size thermal insulating products used in building applications. The principle…
Reference method for thickness measurement of building insulation materials Principle and Apparatus for Thickness Determination ISO 29466:2022 specifies the reference method for measuring the thickness of full-size thermal insulating products. The principle involves measuring the distance between a hard, flat…
Measuring deviation from right angle in building insulation products Understanding Squareness in Thermal Insulation ISO 29467:2008 specifies a method for determining the squareness of thermal insulating products — that is, the deviation from a true right angle between adjacent edges.…
Standard test method for determining the efficiency of flat sheet filter media for high-efficiency particulate air filters 1. Scope of ISO 29463-3: Flat Sheet Filter Media Testing ISO 29463-3:2011 specifies the test method for determining the efficiency of flat sheet…
Standard scan test method for detecting leaks in HEPA and ULPA filter elements 1. Scope of ISO 29463-4: Leak Detection by Scanning ISO 29463-4:2011 specifies the scan test method for determining leakage of high-efficiency filter elements. This is arguably the…
Comprehensive guide to MPPS-based efficiency testing for HEPA and ULPA filters Introduction to ISO 29463-5 and the MPPS Concept ISO 29463-5:2022 specifies the reference test method for determining the efficiency of high-efficiency particulate air (HEPA) and ultra-low penetration air (ULPA)…
Standard test methods for static filter systems in coastal and offshore environments for rotary machinery 1. Scope of ISO 29461-4: Coastal and Offshore Filter Testing ISO 29461-4:2025 specifies test methods for static filter systems used in air intake systems for…
In situ removal efficiency and airflow resistance testing for general ventilation filtration systems 1. Introduction to ISO 29462: Field Testing of Ventilation Filters ISO 29462:2022 specifies methods for field testing of general ventilation filtration devices and systems to determine in…
Comprehensive standard for HEPA and ULPA filter classification, testing, and marking based on MPPS methodology 1. ISO 29463-1: Classification and Performance Requirements for HEPA/ULPA Filters ISO 29463-1:2024, the third edition of the foundational part of the ISO 29463 series, specifies…
Essential specifications for aerosol generation and particle counting in high-efficiency filter testing 1. Scope of ISO 29463-2: Aerosol Production and Measurement Equipment ISO 29463-2:2011 provides the essential specifications for aerosol production, measuring equipment, and particle-counting statistics used in testing high-efficiency…