Silver Soldering - Carrs of Sheffield Health and Safety Information

CARRS OF SHEFFIELD (MANUFACTURING) LIMITED
Date of Assessment:
ASSESSMENT OF WORK ACTIVITY
10th October 2001
Assessment by: Martin Carr
Work Activity:
Responsible Manager:
Silverware Manager
Silver Soldering
General Description of Activity: Silver Soldering of various component parts
Duration: 2-4 Hours per day
Numbers Exposed:
8 approx
Materials used:
Various Capella Products (See Datasheets)
Metabraze 67 (Turrett Brazing)
Exposure Limits
Total Fume 5.0 mg/m3
Silver 0.1 mg/m3
Copper 0.2 mg/m3 OES 8hTWA
Hazards
Inhalation of fume
Control Measures: LEV Systems In place
Other Controls
PPE Requirement Glasses
Atmospheric Monitoring Required for: Total Fume, Silver & Copper - However, the results show these to be well below the OES limits - therefore it seems reasonable
to simply make sure that the LEV is services as requested by the engineer.
Assessment of Control Ok - Subject to the LEV being maintained as above.
IN EMERGENCY – SEE DATA SHEET
Brazing Products Ltd
Tel 01142724220
Fax 01142724218
G4 Buildings, UnitGl,
19-21 Carlisle Street East
Sheffield S4 7QN
DATASHEET
Name:
Metbraze 67
Type of Product:
A
Silver Brazing Alloy
Composition:
67% Silver
19.5% Copper
13.5%Zn
Melting Range:
670-710 C
1. APPEARANCE
Siver/Grey Metal
2. OCCUPATIONAL HEALTH DATA
TLV
Odour threshold
Silver 0.1 mg/m" as fume
Copper 0.2mg/m3 as fume
Zinc 5.0nm/m3 as fume
3. DANGERS TO HEALTH
General
The only potential health hazards involved with this product arise from its use. There are no
storage or handling problems. On heating metal, metal oxide and phosphorus pentoxide ftunes
may be evolved, but are unlikely to exceed the above stated TLVs imder normal conditions.
However, overheating could lead to the emission of Hunes in harmful concentrations.
Inhalation
It is unlikely that the TLVs for the constituent elements will be exceeded imless the material is
severely overheated.
4. FIRST AID
General
Ingestion: None
Skin:
None
Eyes:
None
5. INFORMATION TO MEDICAL PERSONNEL
Metal fiune fever can be caused by exposure to excessive fumes of Copper. Symptoms are
similar to those of influenza and often appear after a latent period of up to 10 hours. They will
normally disappear after 12 hours with rest.
Phosphorus pentoxide fumes are corrosive and are irritant to mucous membranes, the
respiratory system, eyes and skin.
6. PROTECTIVE MEASUREg
Preventive measures, protective equipment, etc.
Tests to determine whether or not TLVs are being exceeded can be carried out by sampling
the air using lapel samplers on the operators or static samplers suitably situated. Normal
analytical techniques are used to determine the metals on the filter. If tests show that TLVs are
being exceeded, local exhaust ventilation should be installed.
Rules defining care as to use:
1. Do not overheat
2. If TLVs exceeded, local exhaust ventilation should be installed.
Rules defining care as to storage:
None necessary
7. REACnViTY AND SPECIAI. PRECAUTIONS
; "Iflo problems
8; ^DESTRUCTION AND REMOVING OF SPILL
No health hazard unless overheated.
9. EMERGENCY PROCEDURE AGAINST LEAKAGE
General
Not applicable
Water contamination
Not applicable
Contamination of streets, public environments, fields etc.
Not applicable.
10. PHYSICAL DATA
Not applicable
11. INFORMATION REGARDDSTG INFLAMMABILITY
No applicable
12. TRANSPORT AND PACE3NG
General
No special precautions
Transport and danger class
No special arrangements needed
13. I^WS AND OFFICIAl. REGi;nLAT[ONS
None
14. USERS OWN INFORMATION
As stated above.
15. OTHER INFORMATION
The information given in this sheet represents the best of our knowledge; it may not be
used as a warranty.