TriStar II Plus

The Micromeritics® TriStar II Plus is a fully automated surface area and porosity analyzer that delivers a rapid high throughput analysis with high accuracy. The three-station unit increases the speed and efficiency of routine quality control analyses, yet has the accuracy, resolution, and data reduction capability to serve research requirements. The instrument combines versatility in analysis methods and data reduction to allow analyses that are customized to application needs.

 

Features and benefits:

• The TriStar II Plus provides an efficient high throughput system with three sample ports operating simultaneously and independently. For additional throughput, up to four units can be operated with one computer.
• Surface areas as low as 0.01 m2 /g can be measured with the standard nitrogen system. A Krypton Option can extend surface area measurements to as low as 0.001 m2 /g.
• The TriStar II Plus accommodates analysis with a variety of adsorbates including argon, carbon dioxide, and other noncorrosive gases such as butane, methane, and other light hydrocarbons.
• Free space can be measured, calculated, or manually entered providing maximum flexibility in accommodating special sample types and emphasizing speed when needed.
• Isothermal Jackets ensure a constant thermal profile along with the full length of both sample and saturation pressure (Po) tubes.
• Micromeritics MicroActive data reduction and control software enables the user to interactively calculate surface area and porosity. User-selectable data ranges through the graphic interface allow direct modeling for BET, t-Plot, Langmuir, and DFT interpretation.
• The enhanced software capabilities allow comprehensive pore size distribution data by gas adsorption & mercury intrusion overlay and advanced NLDFT.

Specifications

Pressure Measurement

Absolute	Range: 0 to 950 mmHg Resolution: Within 0.05 mmHg Accuracy: Within 0.1% of full scale Linearity: < ± 0.1% of span
Relative	P/Po range: 0 to 1.0 P/Po Resolution: < 10-4

 

Analysis

Specific Surface Area	From 0.01 m2/g, nitrogen unit From 0.001 m2/g, krypton unit
Total Surface Area	From 0.1 m2, nitrogen unit From 0.01 m2, krypton unit
Pore Volume	From 4 × 10-6 cm³/g
Dewar Duration	Up to 40 hours
Gas Consumption	Up to 300 cm³ STP per port

 

Adsorptive Gases

Nitrogen Unit	Nitrogen; argon, carbon dioxide, or other non-corrosive gases; butane, methane, or other light hydrocarbon vapors. Oxygen can also be used only with an appropriate vacuum pump.
Krypton Unit	Same as nitrogen unit, plus the capability to perform krypton surface area analyses at lower pressures

The TriStar II Plus should be operated in a properly vented environment when using flammable or toxic gases.

 

Manifold Temperature

Accuracy	±0.25 °C
Resolution	Within 0.1 °C

 

Vacuum System

Nitrogen Unit	Must accommodate 20 × 10-3 mmHg or better; uses oil-based or oil-free vacuum pump
Krypton Unit	Must accommodate 1 × 10-3 mmHg; oil-free vacuum pump required

 

Operating Environment

Temperature	10 to 35 °C (50 to 95 °F), operating 0 to 50 °C (32 to 122 °F), non-operating
Humidity	20 to 80% relative, non-condensing
Indoor or Outdoor Use	Indoor only Altitude: 2000 m maximum Pollution degree of the intended environment: 2

 

Physical

Height	74 cm (29 in.)
Width	40 cm (16 in.)
Depth	51 cm (20 in.)
Weight	37 kg (82 lbs)

 

Electrical

Voltage	100-240V~
Power	150VA, maximum
Frequency	50/60Hz
Overvoltage category	II

Technology

Applications

Additive Manufacturing

Surface area is a critical tool in investigating the kinetics of the sintering process and product properties. Particles having rough surfaces or internal porosity will generally exhibit higher specific surface areas. Therefore, surface area indicates the amount of sample surface available to react with other component particles and /or the surrounding environment.

 

Carbon Black

The wear lifetime, traction, and performance of tires are related to the surface area of carbon blacks used in their production. Medical Implants Controlling the porosity of artificial bone allows it to imitate real bone that the body will accept and allow tissue to be grown around it.

 

Adsorbents

Knowledge of surface area, total pore volume, and pore size distribution is important for quality control of industrial adsorbents and in the development of separation processes. Surface area and porosity characteristics affect the selectivity of an adsorbent.

 

Catalysts

The active surface area and pore structure of catalysts influence production rates. Limiting the pore size allows only molecules of desired sizes to enter and exit, creating a selective catalyst that will produce primarily the desired product.

 

Nanotubes

Nanotube surface area and micro porosity are used to predict the capacity of a material to store hydrogen.

 

Activated Carbons

Surface area and porosity must be optimized within narrow ranges to accomplish gasoline vapor recovery in automobiles, solvent recovery in painting operations, or pollution controls in wastewater management.

 

Ceramics

Surface area and porosity affect the curing and bonding of greenware and influence strength, texture, appearance, and density of finished goods. The surface area of glazes and glass frits affects shrinkage, crazing, and crawling.

 

Paints and Coatings

The surface area of a pigment or filler influences the gloss, texture, color, color saturation, brightness, solids content, and film adhesion properties. The porosity of a print media coating is important in offset printing where it affects blistering, ink receptivity, and ink holdout.

 

Batteries and Fuel Cells

Optimizing the surface area and porosity of the components improves storage capacity and energy generation.

 

Geoscience

Porosity is important in groundwater hydrology and petroleum exploration because it relates to the quantity of fluid that a structure can contain as well as how much effort will be required to extract it.

 

Pharmaceuticals

Surface area and porosity play major roles in the purification, processing, blending, tableting, and packaging of pharmaceutical products as well as their useful shelf life, dissolution rate, and bioavailability.

Accessories

Quote Accessories

Software

Enhanced Software Capabilities, Data Reduction, And Instrument Monitoring