Dust filter categories

The assignment of the use categories "G" and "C" to the dust classes "M" and "H" depends on the MAK values of the dusts. The following table was created by: TÜV Product Service GmbH / Dust Laboratory

Categories for the dust assessment of industrial vacuum cleaners, dust collectors and vacuum sweepers





Formerly:
ZH 1/487, BG-Holz, TRGS 519


suitable for:

Since 1/97:
EN suitable for: 60335-2-69, IEC 335-2-69


Use category

max


Dust class

max

U

5%

- Dusts with MAK values> 1 mg / m³

L

1%

S

1%

- Dusts with MAK values> 0.1mg / m³

M

0,1%

G

0,5%

- Dusts with MAK values> 0.1mg / m³

M

0,1%

C

0,1%

- Dusts with MAK values> 0.1mg / m³ and
Carcinogenic substances according to § 35 GefStoffV

M

0,1%

G

0,5%

- Dusts with MAK values

H

0,005%

C

0,1%

- Dusts with MAK values, carcinogenic substances according to § 35 GefStoffV

H

0,005%

K1

0,05%

- Carcinogenic dusts (§35 GefStoffV)
incl. particularly dangerous carcinogens
Substances according to § 15a GefStoffV

H

0,005%

K2

0,05%

-Dusts contaminated with pathogens

H

0,005%

additional requirements

0,05%

- Asbestos

additional requirements for Germany

see H.

B1
⁢Deutschland

see corresponding category (S, G, C or K)

- Explosive dusts, explosion classes St1,
St2, and St3 in zone 11, St1, St2, and St3 in
Zone 11

B1
⁢ (BRD)

see corresponding dust class (M or H)

H2
Germany

0,2mg (wood)
per m³ (air)

- wood dust (*)

M

0,1%

(*) in Germany over 1200W and / or 50 liter capacity of the dust collector, category B1 is required

The MAK value indicates the maximum permissible concentration of a toxic substance in the air at the workplace.

Integral degree of separation * for MPPS **

IN 1822

> 85%

And 10

> 95%

And 11

> 99,5%

And 12

> 99,95%

H 13

> 99,995%

H 14

> 99,9995%

At 15

> 99,99995%

At 16

> 99,999995%

At 17

Classification of HEPA and ULPA
* The integral degree of separation is the mean value of all local degrees of separation measured over the inflow surface of the filter.
** The particle size at which the medium has the lowest degree of separation is called MPPS (Most Penetrating Particle Size).