DGUV Information 209-090e - Activities relating to Magnesium (DGUV Information 2...

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Abschnitt 8, 8 Identification of applied substances and magn...
Abschnitt 8
Activities relating to Magnesium (DGUV Information 209-090)
Titel: Activities relating to Magnesium (DGUV Information 209-090)
Normgeber: Bund
Amtliche Abkürzung: DGUV Information 209-090
Gliederungs-Nr.: [keine Angabe]
Normtyp: Satzung

Abschnitt 8 – 8 Identification of applied substances and magnesium

According to § 3a of the Workplace Ordinance in conjunction with figure 1.3 of the Annex, health and safety markings have to be used if the risks to safety and health can not otherwise be avoided or sufficiently minimized. The Technical Rule ASR A1.3 "Safety and Health Protection Signage" specifies the requirements for safety and health protection signage at workplaces. Accordingly, signs have to comply with this rule.

The following markings are frequently used especially for magnesium.

Outdoor rooms and storage locations with flammable areas must be marked at suitable positions, especially at the accesses, with the prohibition sign P003 "No open flame; fire, open ignition source and smoking prohibited". Potentially explosive areas must be additionally marked with the warning sign D-W021 "Warning of explosive atmosphere".

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Outdoor rooms and storage locations where magnesium chips and dusts are stored have to be marked with the prohibition sign D-P006 "No unauthorized entry" at the entrances.

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The prohibition on the use of water as a fire extinguishing agent has to be indicated by the prohibition sign P011 "Do not extinguish with water".

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Places, where fire extinguishing equipment and extinguishing agents are located have to be clearly and permanently marked with the fire protection symbol F001 "Fire extinguisher" or F004 "Collection of fire fighting equipment".

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Example of marking dry magnesium chips:

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Information on special hazards:
  • highly inflammable

  • reacts with water to form highly inflammble gases

Safety advice:
  • Keep container dry and tightly closed

  • Keep away from ignition sources - do not smoke

  • Do not inhale gas/smoke/vapour/aerosol

  • For extinguishing with fire extinguisher, use fire class D (metal fires). Do not use water.

  • Only use containers with pressure relief valve

Waste producer:

Further marking requirements can be found in the safety data sheet.

As an example, the information for magnesium chips are listed here:

Signal word "hazard"

Hazard statements - H-phrases:

H228: Flammable solid

H261: In contact with water releases flammable gas

Precautionary statements - P-phrases:

P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.

P370+P378: In case of fire: Use metal fire powder for extinction.

P402+P404: Store in a dry place. Store in a closed container.

Transportation regulations

UN-number: 1869

Designation of hazardous material: Magnesium chips

Class: 4.1 (flammable solids)

Hazard identification number: 40

Packing group: III (material with low hazard)

Hazard label: 4.1

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Tunnel restriction code: E