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GUIDE TO HEARING PROTECTION STANDARDS GUIDE TO EYEWEAR PROTECTION STANDARD

EN 352:2002 EN 166: 2002
The requirement in relation to the ability of hearing protection products to reduce noise below daily limit levels is addressed in this EN 166:2002 is a European technical performance standard for eye protection. All manufacturers of safety eyewear are required to have
standard by requiring the sound attenuation of the products, measured in accordance with EN 24869-1, to be not less than a specified their products independently tested against this European standard. Both the frame and lens are tested, therefore both must include the
minimum. CE symbol and the manufacturer’s logo. The CE marking certifies that a product has met EU consumer safety, health or environmental
requirements.
EN 352 distinguishes between different types of hearing protectors and each type has to comply with the respective requirements. The
main types can be identified using the following extensions: Within the standard, there are numerous levels of compliance, depending on the end use of the piece of equipment in question.
- EN 352-1 applies to ear defenders
- EN 352-2 applies to earplugs
- EN352-3 applies to ear defenders attached to industrial safety helmets
166
A MARKING ON FRAME
I Identification of the manufacturer
II Number of the EN Standard
III Field(s) of use (where applicable)
IV Symbol for resistance to high speed particles (where applicable)
V Certification mark
GUIDE TO RESPIRATORY PROTECTION STANDARD

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B MARKING ON LENS
VI Scale numbers (filters only)
EN 149:2001+A1:2009 VII Identification of the manufacturer

This European Standard specifies minimum requirements for filtering half masks as respiratory protective devices to protect against VIII Optical class
particles except for escape purposes. A particle filtering half mask covers the nose and mouth and chin and may have inhalation and/or IX Symbol for mechanical strength (optional)
exhalation valve(s). The half mask consists entirely or substantially of filter material or comprises a facepiece in which the main filter(s) X Symbol for non-adherence of molten metal and
form an inseparable part of the device. It is intended to provide adequate sealing on the face of the wearer against ambient atmosphere resistance to penetration of hot solids (optional)
when the skin is dry or moist and the head is moved. Air enters the particle filtering half mask and passes directly to the nose and mouth XI Symbol for resistance to surface damage by fine
area of the facepiece or via an inhalation valve(s). The exhaled air flows through the filter material and/or an exhalation valve (if fitted) particles (optional)
directly to the ambient atmosphere. These devices are designed to protect against both solid and liquid aerosols.
XII Symbol for resistance to fogging (optional)

Particle filtering half masks are classified according to their filtering efficiency and their maximum total inward leakage. There are three V Certification mark
classes of devices; FFP1, FFP2 and FFP3. In addition, particle filtering half masks are classified as single shift use only, marked with symbol
‘NR’ or as reusable (more than one shift) – marked with symbol ‘R’.
Performance tests within this Standard include filter penetration, extended exposure (loading) test, flammability, breathing resistance and
total inward leakage. Reusable products are also subjected to cleaning, storage and mandatory clogging resistance tests. The clogging For further information on safety eyewear lens markings, please go to page 39.
resistance test is optional for non-reusable products.

DOLOMITE TEST
The Dolomite test is an optional test under Standard EN 149:2001+A1:2009. Respirators which pass the dolomite clogging test are proved
to provide more comfortable breathing whilst wearing the respirator and will be marked with symbol ‘D’ after the class of respirator, such
as FFP2 NR D.

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