| Refining
Process | Properties
of Zinc | Quality
Control |
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| The laboratory conducts
all measurements under conditions and by using techniques
that are conducive to a high degree of reliability and
follows generally recognised good laboratory practices.
It is our policy to provide the highest quality of measurement
attainable to company personnel, customers and clients. |
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| The laboratory conducts
quality assurance checks, which cover the entire zinc
refining process from incoming zinc concentrate right
through to the final outgoing zinc product. In addition,
we have an overall quality assurance program that includes: |
- Documented preventative maintenance of instruments
- Periodic calibration of balances
- Periodic analysis of standard reference material
- Periodic participation in proficiency testing programs
- Periodic analysis of replicates and spikes
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The purpose of this program
is to provide quality assurance to our customers. This
is achieved by helping all our process departments to
maintain effective quality control systems, identify and
correct problems before they occur, and if possible to
determine in advance potential problem areas and institute
measures for their resolution.
Our analysts focus on generating the appropriate data
required to ensure our process flows correctly and our
customers can be assured of 'getting what they paid for'.
Since commencement of production at SMC the QA/QC department
has assisted in the attainment of LME registration for
Special High Grade Zinc Ingot. Goals for the future are: |
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- Short term - Acquirement of NATA accreditation for
analytical services
- Mid to long term - Acquirement of ISO accreditation
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Initial investment of two
million dollars for equipment and facilities.
Approximately 6,000 Determinations are performed on different
sample components per month. The QA/QC department is comprised
of 10 full time staff members.
We have a wide range of testing capabilities from classical
chemistry to state-of-the-art instrumental techniques. |
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| Atomic absorption spectrometer(Flame) |
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Atomic absorption spectrometer(Hydride) |
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Make
& Model: Varian - SP220FS
Attachments: GTA110, ETC, SIPS, SPS5, VGA
Application: Analysis of zinc concentrate, process
solutions and residues, by products and environmental
samples |
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Make
& Model: Mettler Toledo - DL53
Application: Analysis of process solutions
and environmental samples |
| Carbon Sulfur Determinator |
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ICP-AES |
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Make
& Model: Leco - CS200
Application: Analysis of zinc concentrate, calcine
and process residues |
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Make &
Model: Varian -Liberty Series II
Attachments: Cetac Ultrasonic Nebuliser - AT+, SPS5,
VGA
Application: Analysis of zinc concentrate, zinc
metal, process solutions and residues, sulfuric
acid, by products and environmental samples |
| TOC Analyser |
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Particle size analyser |
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Make &
Model: O.I. Analytical - 1010
Application: Analysis of process solutions and environmental
samples |
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Make
& Model: Malvern - Mastersizer
Application: Analysis of zinc dust |
| UV/Visible spectrometer
x2 |
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Make & Model: Varian - Cary 50
Application: Analysis of process solutions, sulfuric
acid and environmental samples. |
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| Spark Emission Spectrometer
(fully automated system) |
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Make & Model:
Spectro - Spectrolux
Application: Analysis of zinc cathode and zinc
product |
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