Northrock PPE Catalogue

EN STANDARDS: RESPIRATORY PROTECTIVE DEVICES

Class 1: Low capacity, up to 1000ppm Class 2: Medium capacity, up to 5000ppm Class 3: High capacity, up to 10,000ppm

EN136:1998 Full Face Mask Facepieces Class 1: Light Duty Class 2: General Use Class 3: Special Use (Heavy Duty/Firefighters)

EN143:2007: Particulate Filters

PARTICULATE FILTER CLASSES:

EN140:1998 Half Mask Facepieces EN14387:2008 Gas Filters and Combination Filters

P1 - Low filter performance (80% efficiency) P2 - Medium filter performance (94% efficiency) P3 - High filter performance (99.95% efficiency)

EN148-1: Standard Threads for Facepieces

MAIN GAS FILTER TYPES:

Gas and Vapours Filters

EN405:2001+A1:2009 Valved Filtering Half Mask with Fixed Gas Filters and/or Particulates Filters

Main Gas Filter Types: A - Organic gases and vapours with a boiling point >65°C B - Inorganic gases and vapours E - Sulphur dioxide and other acid gases and vapours K - Ammonia and organic ammonia derivatives

Type Colour Code

A

B

E

K

EN149:2001+A1:2009 RESPIRATORY PROTECTIVE DEVICES – FILTERING HALF MASKS TO PROTECT AGAINST PARTICLES. This European Standard covers particle filtering half masks i.e., disposable dust masks. With the A1:2009 amendment, these are now classified as either not reusable (NR) beyond a single working shift, or reusable for more than 1 shift (R).

Disposable Mask Selection

FFP3

FFP2

FFP1

Minimum Filtration %

99%

94%

80%

Total Inward Leakage (TIL)

2%

8%

22%

Nominal Protection Factor (NPF)

50 x WEL

12 x WEL

4 x WEL

Assigned Protection Factor (APF)

20 x WEL

10 x WEL

4 x WEL

TERMINOLOGY

WEL: Workplace Exposure Limit Maximum contaminant concentration to which the user may be exposed without adverse health effects. TIL: Total Inward Leakage Combined leakage of the ambient atmosphere into the face piece via the filter media, valve and face seal.

APF: Assigned Protection Factor Level of protection that can realistically be expected under real workplace conditions. DOLOMITE TEST (D): Clogging test under EN149 using dolomite dust. Respirators which pass the dolomite test are proven to provide a more comfortable breathing level and longer lasting filtration performance. Such respirators are marked with the letter “D”. Dolomite testing is optional for single use “NR” respirators and mandatory for reusable “R” respirators.

NPF: Nominal Protection Factor Nominal level of protection given by respiratory PPE (in laboratory conditions).

876|