Personal eye-protection. Automatic welding filtersBS EN 379: 2003+A1: 2009 Personal eye protection. Automatic welding filters BS EN 379 specifies requirements for automatic welding filters which switch their luminous transmittance to a lower predetermined value when a welding arc is ignited (referred to as welding filters with switchable scale numbers). It also specifies requirements for automatic welding filters which switch their luminous transmittance to a lower value, where the lower value of

Requirements of the EU Pressure Equipment Directive (PED) 97/23/EC

Where requirements of a product standard differ from those given in BS ISO 5208

It explains the manufacturing process

It does not cover hydraulic pressure tests or visual tests carried out using unregulated NDT methods

5 Test methods

If a common biometric exchange formats framework (CBEFF) header is present

flexible cables or conductor wires or conductor bars

BS EN 15561 specifies a method for the determination of total nitrogen in calcium cyanamide

from students to fully qualified consultants

as well as managing resources and processes

Welding processes that are not under direct manual control are subject to comprehensive test and acceptance specifications

It also specifies sections up to 63 mm thick except for sections delivered in the as-rolled condition which are permitted up to 25 mm thick only