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LASER PARTICLE SIZE ANALYSIS

PMET provides laser particle size analysis in addition to screen analysis and micro-sieve analysis. A Microtrac S3000 Particle Analysis System uses a laser diffraction  system to measure particles down to 0.01 micrometers. The microtrac analysis output is a data sheet containing the distribution of particle sizes, a cumulative percent graphic and various calculated values. This system is used to measure particle size distribution of ash, minerals, cement and industrial products.

Click here for example report.

 

OPTICAL MICROSCOPY

The optical microscopy lab uses a Leitz metallographic microscope, a Leitz ore microscope, a Wild M8 bench microscope, and a Polaroid MP4 overhead camera. The lab conducts metallographic studies of microstructure, hardness profile, inclusion analysis, and case depth. Ore microscopy includes ore mineralogy and modal analysis of liberation-locking occurrence of phases. Optical microscopy is an essential tool in failure analysis, corrosion studies, optimizing metals and minerals processing, and evaluating structures.

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These images show preferential corrosion of ferrite in the weld structure of an austenitic stainless steel tube. This is typical of weld failure due to chloride attack. The information confirms that chlorine, which was introduced into the tube, is the cause of the failure.


 


CARBON / SULFUR DETERMINATION

Direct determination of carbon and sulfur content in minerals, metals, and byproducts is achieved with an induction furnace and two infrared analyzers. The Eltra CS800 Analyzer measures 6.116% carbon in tungsten carbide with an accuracy of 180ppm. This capability supports our coal combustion ash and tungsten carbide development projects.





 



PRECISION SAMPLING

PMET's many years of experience in mercury removal and recovery and in processing and analyzing primary gold and other mineral ores has provided us with precision sampling expertise in non-uniform materials, especially materials exhibiting a "nugget effect", and in obtaining small, representative samples from large volumes of starting material. Since accurate analyses depend upon representative sampling, PMET employs latest state-of -the art crushing, grinding, blending, and splitting techniques to assure precise and meaningful results. Over the years, many clients who perform their own analytical testing have come to depend upon PMET to obtain representative samples from large volume samples. Materials received for sampling are carefully logged throughout the sampling process and portions of each sample are retained for future testing and comparison prior to returning the samples to the client for analysis


 


OTHER LABORATORY SERVICES

Additional laboratory services offered by PMET, directly or through associated laboratories, include

  • Sieve Analysis
  • Ultra Fine Screening
  • Magnetic Separation
  • Gravity Separation
  • Loss-On-Ignition Analysis
  • Agglomeration
  • Hydrothermal Forming
  • Thermal Treatment
  • Mechanical Grinding
  • Autogenous Grinding
  • Chemical Analysis
  • Micro Hardness

 

 

 

 

 


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