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What's New at PTL

Microscopy

In addition to the current inventory of microscopes, PTL's Microscopy capabilities have recently been expanded by the acquisition of new digital and metallographic microscopes.

The Keyence VHX-500 digital microscope provides advanced functions that enable ultra-deep and high definition 3-D observation at magnifications of 20-200X. It also provides a depth of field larger than those of optical microscopes.

The VHX-500 allows changes in observation angles (held by hand or mounted to the stand) and real time image improvement and measurements of distance, radius, angle, and area of target. Applications include electronic/electrical, automotive, metal, materials, chemical, and other industries.

VHX-500

The Zeiss Axiovert 200 MAT is a research-grade metallograph designed for examination of mounted samples. Contrasting methods for reflected light include brightfield, darkfield, and polarization. The metallograph is integrated with the AxioVision 4™ software for imaging and analysis.


Axiovert 200 MAT


Viscosity

Viscosity measurement capabilities have recently been expanded by the addition of a Programmable Rheometer, and a Vacuum Viscometer.

A Brookfield RVDV-III Ultra Programmable Rheometer covers the Viscosity Range of 100 centipoise to 40 million centipoise (cP = mPa·s).
This Viscometer measures Torque (%), Shear Rate, Shear Stress, Centipoise, and milliPascal-seconds; it features 2600 Programmable Speeds, and an accuracy of ± 1.0% of the Viscometry Range.

Brookfield RVDV-III

The RVDV is recommended for medium-viscosity measurements on the following:  Adhesives (Hot-melt), Asphalt, Ceramic Slurries, Creams, Dairy Products, Food Products, Gums, Inks, Organisols, Paints, Paper Coatings, Paper Pulp, Plastisols, Starches, Surface Coatings, Toothpaste, Varnish.

A Brookfield LVTD Digital Viscometer covers the Viscosity Range of 10 centipoise to 2 million centipoise; Viscosity only; 32 Ranges, with 8 selectable speeds. This unit exhibits an accuracy of ± 1% of the Viscometry Range. This unit is equipped with a Small Sample Adapter, enabling measurements from 5 centipoise to 10,000 centipoise, on an 8 mL sample.

The LVTD is recommended for low-viscosity measurements on the following:
Adhesives (solvent-based), Biological Fluids, Chemicals, Cosmetics, Dairy Products, Hot Waxes, Inks, Juices, Latex, Oils, Paints & Coatings, Pharmaceuticals, Photo Resist, Polymer Solutions, Rubber Solutions, and Solvents.

A Cannon Model 9274-L65 Calibrated Vacuum Viscometer (Glass Capillary) covers the range of 12 poise to 240 poise. The system is expandable to cover a range of 0.036 poise to 80,000 poise.
It features a small Sample-Volume requirement; typically, only 6 mL of Sample is adequate to complete the test.

This unit is recommended for measurements of highly-viscous materials, in accordance with ASTM D 2171.

In addition to the Viscometers listed above, PTL has several Brookfield dial-reading Viscometers, suitable for measurements of low viscosity fluids.

Several Constant-Temperature baths are available to bring the Sample Under Test to the recommended temperature, and to maintain the temperature within a fraction of a degree.


RoHS Testing

The European Union (EU) directive on the "Reduction of certain Hazardous Substances in electrical and electronic equipment" (RoHS) prohibits elements such as Lead (Pb), Mercury (Hg), Cadmium (Cd), and Hexavalent Chromium (Cr VI), and brominated flame retardant compounds such as Polybrominated Biphenyls (PBB) and Polybrominated Diphenyl Ethers (PBDE), from being used in electronic and electrical equipment beginning July 1, 2006. These same substances are regulated in the Chinese draft legislation as well as the state of California.

To complement PTL's RoHS testing capabilities, PTL has purchased a new Oxford Instruments Horiba XGT-1000WR XRF Hazardous Substances Analyzer, which is compliant with the RoHS, Waste Electrical and Electronic Equipment (WEEE), and End of Life Vehicle (ELV) directives. Industries and products covered by the WEEE and RoHS include:

  • Large household appliances
  • IT and telecommunications equipment
  • Consumer equipment
  • Lighting equipment
  • Electrical and electronic tool
  • Toys, leisure and sports equipment
  • Automatic dispensers

The instrument allows for non-destructive elemental analysis, including screening for RoHS elements such as Br, Cd, Cr, Hg, and Pb in trace concentrations. Verification analysis for some of the elements can also be performed using such techniques as Atomic Absorption Spectrophotometry (AAS), UV-VIS spectroscopy, and Ion Chromatography (IC):

Horiba XGT-1000WR XRF

Elements measured range from Si to U (Cd/Pb/Cr/Hg/Br high-sensitivity model).


X-Ray Fluorescence (XRF)

PTL has purchased a new Oxford Instruments CMI900 Advanced XRF thickness measurement system. The instrument allows non-destructive measurements of various plating thickness (i.e. Au/Ni, Au/EN, Ag, Sn, etc.):

CMI900 XRF


Pacific Testing Laboratories has upgraded its thermal laboratory by purchasing four additional Thermal Analysis instruments: TA Instruments Dynamic Mechanical Analyzer (DMA) Q800, Differential Scanning Calorimeter (DSC) Q10, Thermomechanical Analyzer (TMA) Q400, and Thermogravimetric Analyzer (TGA) Q50.

DMA Q800

 

DSC Q10

 

TMA Q400

 

TGA Q50

 



Pacific Testing Laboratories has upgraded its chemical laboratory by purchasing two additional Ion Chromatographs (Dionex ICS-2000 and ICS-1500). The additional Ion Chromatography systems allows one system to be dedicated to the analysis of anions while the other is dedicated to the analysis of weak organic acids and cations (i.e. ammonium, Ca, Li, Mg, K, Na, etc.):

ICS-2000

ICS-1500


Pacific Testing Laboratories - In addition to its existing number of Scanning Electron Microscopes (SEM) and Energy Dispersive X-Ray analyzers (EDS), Pacific Testing Laboratories has acquired a JSM-6460LV SEM and a Thermo Noran System Six Energy Dispersive X-ray analyzer (EDS):

JEOL 6460LV SEM

The SEM has a large specimen stage and chamber for the evaluation of taller and larger specimens. The SEM also has a low vacuum SEM mode in addition to the conventional high vacuum SEM mode. The low vacuum SEM lets you observe a non-conductive specimen as is and can then be analyzed with EDS. The low vacuum SEM easily handles a specimen with much out-gassing.

Principal Specifications and Features:

  • Tall and large specimen chamber
  • Backscattered electron detector
  • Energy Dispersive X-ray analyzer (EDS): elemental analysis, X-Ray mapping, line scan
  • 3.0 nm (30kV) Resolution (HV mode)
  • High/Low Vacuum Modes
  • Magnification (X8 to X300,000)
  • IR camera
  • Digital photographic documentation
  • Imade Modes: secondary electron image, composition, topography, shadowed