Health and Safety
ITW Industry is committed to ensuring that all operatives are fully trained to work safely and productively. It is a key element of work for our team of highly experienced mobile engineers to provide such training at your workplace.
EN792-13 system supply
ITW Industry have consciously chosen to supply a fastening system, which means to research, develop, test and market both fasteners and power fastening tools for optimal performance under safe conditions, as referred to in EN792-13, “Hand held, non-electric power tools - Safety requirements for fastener driving tools”. EN792-13 specifically states that fasteners listed in the operating manual must be seen as one unit system in terms of technical safety.
Hand arm vibration
As part of the CE-declaration of conformity the sound vibration levels of all power fastening tools should be recorded. The vibration level is measured as a single event vibration energy, according to CEN ISO/TS 8662-11:2004 as referred to in EN792-13.
Sound or noise levels can be measured as sound pressure level and sound power level. The sound
pressure level is a measure of small pressure fluctuations above the normal atmospheric pressure.
The sound pressure level depends on how far away the measuring equipment is from the tool, and on the measuring environment. The sound pressure level is important because it relates to the loudness of the sound and to the potential damaging effect on hearing.
The sound power level is a measure of the total noise radiated by the tool in all directions. It is a property of the tool and is independent of the measuring environment. Sound power levels are useful to:
- Calculate the sound pressure level from a tool (or several tools) at a given distance in a given environment.
- Compare the noise output from different tools.
- Set specifications for the maximum noise from a tool.
- Compare machines before and after modifications to reduce noise.
Either of the sound levels could include a standardised frequency weighting to represent the frequency response of the human ear, called “A-weighted sound pressure level” and “A-weighted sound power level”. The sound levels are measured according to the “Accoustics - Noise test code for fastener driving tools - Engineering method” EN12549, as referred to by EN792-13, in which the following noise levels are described:
- A-weighted single-event emission sound pressure level at work station, LPA, 1s, is measured at a distance of 0.3m behind and 0.5m above the centre point of the tool. This measurement position is approximately the ear position of the operator.
- A-weighted single-event emission sound pressure level, LPA, 1s, 1m, is measured at 10 different pre-determined positions, 5 times for each position
- The A-weighted single-event sound power level, LWA, 1s, is calculated from the LPA, 1s, 1m.