Machine tools. Safety. Electro discharge machinesBS EN 12957: 2001+A1: 2009 Machine tools. Safety. Electro discharge machines BS EN 12957 specifies technical safety requirements and measures, applicable to Electro discharge machines (EDM) and EDM systems (e. g. for spark erosion sinking, spark erosion wire cutting). It is designed to be adopted by those undertaking the design, construction, installation and or supply of such equipment. BS EN 12957 also includes information to be provided by the

polarization

Manufacturers of bituminous products

Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC (PED)

EN 50281-2-1

Buyers of PS recyclates

and essential requirements of Article 3

— other suitable materials

The principle of the test is based on the measurement of a surface vertical flow rate of water that infiltrates the soil under the influence of a positive hydraulic head

Informative annexes indicate recommended actions for avoiding and reducing the possible environmental impacts outside the workshop

Contents of BS ISO 10263-4:

Ordinary materials such as carbon or silicon

Mechanical sample preparation