BS IEC 63182-4. Magnetic powder cores. guidelines on dimensions and the limits of surface irregularities - Part 4. Block-cores

the porosity

ISO/IEC 33020 includes informative annexes

ISO 4241:2019 supersedes BS ISO 4241:2013

Introduction of a new type of test load

A revision to BS 8549 was necessary to update the 2006 edition in line with current techniques and threats

Disposal of damaged appliances that run on electricity or contain electrical parts is important to avoid causing damage to the environment

ISO 18416

Conformity with the MID-2014/32/EU regarding declared errors of the same sign and testing Qmin at the minimum and maximum declared gas temperatures

This system is convenient for consumers who want to listen to sound without earphones or headphones

Note: BS EN 60564 does not apply to bridge comparators1)

In BS EN 60990

test methods for measuring optical properties