Aerospace series. Space systems. Fluid characteristics, sampling and test methods - Helium1 Scope This part of ISO 15859 specifies limits for the composition of helium and establishes the sampling and test requirements applicable for the verification of the helium composition. This part of ISO 15859 is applicable to helium, used in both flight hardware and ground facilities, systems and equipment, of the following types and grades. Type I: gaseous Grade A: purging and pressurizing helium; Grade F: purging and pressurizing helium; Grade J:

either concurrently within the same pair of footwear or consecutively between pairs under similar conditions of use

BS 42020 gives recommendations and provides guidance primarily for ensuring that actions and decisions taken at each stage of the planning process are informed by sufficient and appropriate ecological information

Electroacoustics assessment of the hearing aids is used for verifying if the performance characteristics of a hearing aid are as per its reference specifications

f) Potable waters

BS EN ISO 22870:2016 includes some technical changes with respect to previous edition

Ground sockets

NOTE: It‘s recommended that this document is read in conjunction with BS ISO 31000

Contents of BS EN 806-4:

It will help manufacturers show compliance with the standard in order to meet European Directives

Who is BS EN 2959-Aerospace series: Heat resisting alloy NI-PH1302 (NiCr20Co13Mo4Ti3Al) bar for forged fasteners for

Note: ISO 20671 can be used in the internal and external brand evaluation

but also will continue to meet