Registration Dossier

Manufacture, use & exposure

Uses at industrial sites

Documentsopen allclose all

Uses at industrial sites

Contributing activity / technique for the environment
Name of activity / technique:
Use of TBO to manufacture tungsten metal powder - ERC 6a
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Name of activity / technique:
Step 1: Transfer from drums to process metal containers (OPTIONAL): The TBO powder is transferred from drums to process metal containers - PROC 8b
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Step 2 - Furnace charging: The TBO powder is filled manually or automatically into reduction boats for pusher furnaces or it is filled directly to a rotary furnace - PROC 26
Process category (PROC):
PROC 26: Handling of solid inorganic substances at ambient temperature
Name of activity / technique:
Step 3 - Reduction process: The TBO powder is reduced to tungsten metal powder in hydrogen atmosphere at approximately 1000°C either in pusher furnaces or rotary furnaces - PROC 27a
Process category (PROC):
PROC 27a: Production of metal powders (hot processes)
Name of activity / technique:
Step 4 - Sieving: The tungsten metal powder is sieved immediately after reduction and filled into closed containers - PROC 8b
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Step 5 - Transfer to mixer: The tungsten metal powder is transferred from the transport containers into a mixer. - PROC 8b
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Step 6 - Homogenizing: The tungsten metal powder is homogenized in a mixer - PROC 3
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Name of activity / technique:
Step 7 - Filling: The homogenized (and optional doped) tungsten metal powder is filled into closed containers - PROC 8b
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Name of activity / technique:
Step 8 - Maintenance: Maintenance of production and ventilation equipment - PROC 8b
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Product category used:
PC 7: Base metals and alloys
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Process category (PROC):
PROC 26: Handling of solid inorganic substances at ambient temperature
Process category (PROC):
PROC 27a: Production of metal powders (hot processes)
Product category used:
PC 7: Base metals and alloys
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR

Uses at industrial sites

Contributing activity / technique for the environmentopen allclose all
Environmental release category (ERC):
ERC1: Manufacture of the substance
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Process category (PROC):
PROC 26: Handling of solid inorganic substances at ambient temperature
Process category (PROC):
PROC 27a: Production of metal powders (hot processes)
Product category used:
PC 7: Base metals and alloys
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no

Uses at industrial sites

Contributing activity / technique for the environment
Environmental release category (ERC):
ERC6a: Use of intermediate
Contributing activity / technique for workersopen allclose all
Process category (PROC):
PROC 3: Manufacture or formulation in the chemical industry in closed batch processes with occasional controlled exposure or processes with equivalent containment conditions
Process category (PROC):
PROC 8b: Transfer of substance or mixture (charging and discharging) at dedicated facilities
Process category (PROC):
PROC 26: Handling of solid inorganic substances at ambient temperature
Process category (PROC):
PROC 27a: Production of metal powders (hot processes)
Product category used:
PC 7: Base metals and alloys
PC 19: Intermediate
Sector of end use:
SU 14: Manufacture of basic metals, including alloys
Substance supplied to that use in form of:
as such
Subsequent service life relevant for this use:
no
Related assessment:
use assessed in a joint CSR