Space environment (natural and artificial). Methods for estimation of future geomagnetic activity Ingestion-build-93833 BS 9220 gives details of

BS 9220 gives details of test requirements and other general information relating to rigid waveguide tubing of assessed quality of the following types:

Tubes having an outside diameter of not more than 108 mm are suitable for soldering

Manufacturers of furnaces

This document supports the requirements of EN 14181 and legislation such as the IED and E-PRTR

with BS EN 16245-3-compliant declaration requirements

Space environment (natural and artificial). Methods for estimation of future geomagnetic activity Ingestion-build-93833 BS 9220 gives details of1 Scope This document specifies the methods used for estimating geomagnetic indices for time intervals ranging from short term (hours to a few months) to long term (months to years). This document is intended for use to predict future geomagnetic indices and space environment.