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Refining Process | Properties of Zinc | Quality Control
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.
 
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
 
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:
 
  1. Short term - Acquirement of NATA accreditation for analytical services
  2. Mid to long term - Acquirement of ISO accreditation
 
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.
 
 
Atomic absorption spectrometer(Flame)   Atomic absorption spectrometer(Hydride)
 
Make & Model: Varian - SP220FS
Attachments: GTA110, ETC, SIPS, SPS5, VGA
Application: Analysis of zinc concentrate, process solutions and residues, by products and environmental samples
  Make & Model: Mettler Toledo - DL53
Application: Analysis of process solutions 
and environmental samples
Carbon Sulfur Determinator    ICP-AES
 
Make & Model: Leco - CS200
Application: Analysis of zinc concentrate, calcine and process residues
  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    Particle size analyser 
 
Make & Model: O.I. Analytical - 1010
Application: Analysis of process solutions and environmental samples
  Make & Model: Malvern - Mastersizer
Application: Analysis of zinc dust
UV/Visible spectrometer x2    
   
Make & Model: Varian - Cary 50
Application: Analysis of process solutions, sulfuric acid and environmental samples.
   
Spark Emission Spectrometer (fully automated system)
Make & Model: Spectro - Spectrolux
Application: Analysis of zinc cathode and zinc product