19.
Technical Information (EN352)
SNR =
Single Number Rating attenuation
H =
High frequency attenuation
M =
Medium frequency attenuation
L =
Low frequency attenuation
EN352-2:2002 EN352-7:2002
Tested by:
INSPEC Certification Services, 56 Leslie Hough Way, Salford, Greater Manchester,
M6 6AJ. UK.
Further information can be obtained from Puretone Ltd, 9-10 Henley Business
Park, Trident Close, Medway City Estate, Rochester, Kent. ME2 4FR. UK.