Standards for noise measurement regarding machines and equipment.
For many families of machines specific noise test code can be found in EU harmonized standards on machinery safety.
Not all machinery safety standards contain a noise test code. Figuring out if there is a specific noise test code is quite an effort alas.
The scope of an EU harmonised standards should indicate if noise is covered, and the table of content should include an item 'noise test code'.
If no specific noise test code is available the basic standards, as in the table below, apply for in situ measurement. In that case operating conditions shall be carefully selected and reported, for example.
EN ISO 12001 "Rules for the drafting and presentation of a noise test code" describes the requirements for noise test codes for specific machines.
If no specific noise test code exists this standard can be used as guidance regarding the aspect to be covered, although it is not intended to be used
for individual cases.
The B-standards below shall be complied with.
|
|
engineering accuracy |
survey accuracy |
| Emission sound |
ISO 11201 |
ISO 11202 |
| Sound power level |
ISO 3744 |
ISO 3746 |
- Emission sound pressure level is the sound pressure level at an operator or a bystander position, given a specific operating condition
- In case of indoor measurements the conditions regarding the room or hall are quite strict and can pose serious limitations.
- For explanation on sound power level see this article on LinkedIn
- For outdoor equipment within the scope of 2000/14/EC sound power must be determined according to that directive. The emission sound pressure level must be determined with harmonised standards.
