Eppendorf MixMate Manuel d'utilisateur télécharger pdf (Page 34)

Declaration of Conformity

The device was tested in accordance with EN ISO 5349-1 : 2001 “Mechanical vibration – measurement

and assessment of human exposure to hand-transmitted vibration – Part 1”

Product name:

MixMate 5353

Product type:

Mixer for microtest tubes and plates with integrated touch vortex function

Hand-arm-vibration assessment of MixMate 5353 in accordance with DIN ISO 5349-1:2001

Tests were performed on the MixMate operated in the “touch vortex” operation mode (3500 rpm) with 15

ml and 50 ml Falcon tubes. The total vibration value was measured, the daily vibration exposure and the

exposure points calculated from it.

The exposure action value EAV of 2.5 m/s

A(8) is equivalent to 100 exposure points and is the level at

and above which hand-arm-vibration management procedures must be initiated where employees are

regularly exposed to this level of vibration exposure.

The exposure limit value ELV of 5 m/s

A(8) is equivalent to 400 exposure points and must not be

exceeded on any work day. If it is, immediate measures must be taken to control vibration levels or reduce

exposure times to limit daily vibration exposure to below the ELV.

Tube

Total

vibration

value

Daily

exposure

value

1 HOUR

xposure points

Time – single tool

use:

For not exceeding

EAV ELV

m/s

2.5 m/s

minutes

5 m/s

minutes

Usage pattern: Each

test consisted of a

reprensentative usage

pattern equivalent to 5

successive touch vortex

operations of 30 seconds

with 5 second intervals in

a total of 2 minutes 30

seconds “on” and 20

seconds “off”. Tubes

were filled with 2/3 of

water.

15 ml

50 ml

5.2

9.4

1.8

3.3

177

111

444

136

Exposure Action Value (EAV)

The table indicates that the operator using 15 ml Falcon tubes in touch vortex mode (3500 rpm) with

reported usage would reach the EAV in 111 minutes and using 50 ml Falcon tubes in

34 minutes. Based on a usage pattern of 30 seconds vortex / 5 seconds gap for changing

the tube, this means that approximately 190 of the 15 ml or 58 of the 50 ml Falcon tubes could produce

exposures that reach the EAV. With a usage pattern of 15 seconds vortex / 5 seconds gap, 333 x 15 ml

tubes or 102 x 50 ml tubes may be vortexed without exceeding the EAV.

With a usage pattern of 45 seconds vortex / 5 seconds gap 133 x 15 ml tubes or 40 x 50 ml tubes may be

vortexed.

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Eppendorf MixMate Manuel d'utilisateur Page 34

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