ASAP 2460 & 2425

Surface Area & Porosimetry System

Six independently operated analysis ports
Long-duration Dewars and Micromeritics Isothermal Jackets
The high-capacity Dewar

Analytical Versatility With Superior Throughput

Surface area and porosity are important physical properties that influence the quality and utility of many materials and products. Therefore it is critically important that these characteristics be accurately determined and controlled. Likewise, knowledge of surface area and especially porosity often are important properties in understanding the formation, structure, and potential application of many natural materials.

High Performance and High Sample Throughput The automated Micromeritics® ASAP® 2425 surface area and porosimetry system is designed to help busy laboratories expand their workflow while providing highly accurate and precise surface area and porosimetry data. High performance, versatile analysis, and sample preparation systems are included in the same instrument.

Features and Benefits:

Fully automated analyses
High throughput with six independent analysis stations
Each analysis port has a dedicated analysis and Po pressure transducer
Twelve independently controlled degas ports
Evacuation rate precisely regulated by a servo valve
BET surface area measurements in as little as 1 hour
Dosing options of maximum volume increment or dosing over specified pressure ranges
Entered or calculated analysis temperature
Equilibration option allows user to specify equilibration times for different parts of the isotherm
Low surface area option with five independent analysis ports

Specifications

ASAP 2425 Specifications

ASAP 2425 Specifications

Electrical

Voltage	100/115/230 VAC (± 10%)
Frequency	50 or 60 Hz
Power	800 VA, exclusive of vacuum pumps, which are powered separately

Environment

Temperature	10 to 30 °C operating, -10 to 55 °C storage or shipping
Humidity	Up to 90% relative (non-condensing) for instrument.

Capacity

Analysis System	6 sample ports, each with a constantly monitored saturation pressure port
Degas System	12 degas ports, each with independently controlled heating mantle

Analysis System

Manifold Temperature Transducer	Type: Platinum resistance device (RTD) Accuracy: ±0.10 °C by keyboard entry Stability: ±0.10 °C per month
Manifold Pressure Transducer	Range: Vacuum to 950 mmHg operating: 1000 mmHg maximum 10 mmHg added for krypton option 1 mmHg for micropore optionResolution: 1000 mmHg Transducer: 0.01 mmHg 10 mmHg Transducer: 0.0001 mm 1 mmHg Transducer: 0.00001 mmAccuracy: 1000 mmHg Transducer: within 0.1% FS 10 mmHg Transducer1 : within 0.15% of reading 1 mmHg Transducer2 : within within 0.12% of reading
Sample Port Transducer and Po Port Transducers	Range: 0 to 950 mmHg Resolution: 0.01 mmHg Accuracy: ±0.1% Full Scale
Vacuum Gauge	Type: Thermocouple Range: 0.001 to 1 mmHg

Physical

Height	159 cm (62.5 in.)
Width	103 cm (40.5 in.)
Depth	51 cm (20.2 in.)
Weight	160 kg (350 lb)

Vacuum System

Nitrogen System Pumps	2 oil-based pumps: 1 analysis, 1 degas 4 pumps (optional): 2 oil-free (1 analysis, 1 degas), 2 high vacuum (1 analysis, 1 degas)
Krypton & Micropore Pumps	Oil-based mechanical pump: 5 x 10-3 mmHg ultimate vacuum Oil-free and high vacuum pump: 3.8 x 10-9 mmHg ultimate vacuum3

Degas System

Capacity	12 degas ports
Vacuum Control	Selectable target pressure controls switchover from restricted to unrestricted evacuation
Evacuation	Selectable evacuation rate from 1.0 to 50.0 mmHg/s
Manifold Pressure Transducer	Range: 0 to 950 mmHg Resolution: 0.01 mmHg Accuracy: ±0.1% Full Scale
Vacuum Transducer	Type: Thermocouple Range: 0.001 to 1 mmHg
Titled Backfill Gas	User-selectable at dedicated port, typically nitrogen or helium
Temperature Control	Temperature Range: Ambient to 450 °C (Programmable) Temperature Control: 1 ramp during evacuation phase, 5 additional selectable ramps during heating phase Selection: Digitally set, 1 °C increments from computer Accuracy: Deviation less than ±10 °C of set point at the sensing thermocouple embedded in the heating mantle

Computer Requirements

Windows® 7 Professional or higher operating system recommended (64 bit)4 USB port5 Ethernet port (10 base T or 100 base T)

ASAP 2460 Specifications

ASAP 2460 Specifications

Electrical

Voltage	100/115/230 VAC (± 10%)
Frequency	50 or 60 Hz
Power	800 VA, exclusive of vacuum pumps, which are powered separately

Environment

Temperature	10 to 30 °C operating, -10 to 55 °C storage or shipping
Humidity	Up to 90% relative (non-condensing) for instrument.

Capacity

Analysis System

2, 4, or 6 sample ports (for krypton analysis, one sample port is used for dosing), each with a constantly monitored saturation pressure port

Analysis System

Manifold Temperature Transducer	Type: Platinum resistance device (RTD) Accuracy: ±0.10 °C by keyboard entry Stability: ±0.10 °C per month
Manifold Pressure Transducer	Range: 0 to 950 mmHg operating: 1000 mmHg maximum 0 to 10 mmHg added for Krypton option Resolution: 1000-mmHg Transducer: 0.001 mmHg 10-mmHg Transducer1: 0.00001 mmHg 1-mmHg Transducer**: 0.000001 mmHg Accuracy: 1000-mmHg Transducer: within 0.15% of reading 10-mmHg Transducer1: within 0.15% of reading 1-mmHg Transducer2: within 0.12% of reading
Sample Port Transducer and Po Port Transducers	Range: 0 to 950 mmHg Resolution: 0.001 mmHg Accuracy: ±0.1% Full Scale
Vacuum Transducer	Type: Thermocouple Range: 0.001 to 1 mmHg

Physical

Height	94 cm (37 in.)
Width	38 cm (15 in.)
Depth	59 cm (23 in.)
Weight	54 kg (119 lb)

Vacuum System

Pumps³

Nitrogen: Oil-sealed pump
Krypton & enhanced micropore option: High-vacuum pump

Computer Requirements: Windows® 7 Professional or higher operating system (64 bit)5,7 USB port6 Ethernet port (10 base T or 100 base T)

Includes nonlinearity, hysteresis, and non-repeatability.

¹The 10-mmHg transducer is active only when performing krypton analyses
²The 1-mmHg transducer is presented only in the enhanced micropore option
³Oil-free and high vacuum pump: 3.8 × 10-9 mmHg ultimate vacuum⁴
⁴Ultimate vacuum measured by pump manufacturer according to Pneurop Standard 5608 Due to continuous improvements, specifications are subject to change without notice.
⁵For 21 CFR Part 11, Windows 10 Professional or Windows 10 Enterprise or higher is required.
⁶One additional USB port must be available for Instrument.
⁷Not be installed on a network drive with shared access. Multiple users cannot operate the application at the same time.

Due to continuous improvements, specifications are subject to change without notice

Analysis System

With six independently operated analysis ports, a new analysis can begin as soon as another is finished.
This provides an important advantage over many multiport instruments that require all samples to be
prepared or analyzed at the same time.
Long-duration Dewars and Micromeritics Isothermal Jackets1 assure a constant thermal profile along
the length of both the sample and saturation pressure (Po) tubes throughout extended analyses.
The Po value may be entered, or measured either continuously or at selected intervals.
The high-capacity Dewar also allows unattended analysis of high-resolution adsorption/desorption
isotherms that take much longer to complete because the system must equilibrate at each data point.
BET surface area analyses utilizing six parallel runs can be achieved in as little as 1 hour.
A low surface area option that uses krypton as an adsorptive to measure total surface areas of 0.5 m2 or less is available. This option utilizes five of the six available ports. It also features a turbomolecular drag pump, which provides the high vacuum required for krypton analyses, and a 10 mmHg pressure transducer, which allows accurate, repeatable pressure resolution.
Intuitive Micromeritics MicroActive software combines user-defined reports with the ability to interactively evaluate isotherm data. User-selectable data ranges through the graphic interface allow direct modeling for BET, t-Plot, Langmuir, DFT interpretation, and new advanced NLDFT methods.
Up to five different nonreactive adsorptives, plus an additional gas for free space, can be attached to the analyzer simultaneously.
The servo pressure control regulates dosing and evacuation during analysis to reduce analysis time.

Sample Preparation System

The ASAP 2425 system includes twelve automatically controlled sample preparation ports that operate
independently. Samples may be added or removed from degas ports without disturbing the treatment of
other samples undergoing preparation.
The sample preparation system is fully automated with controlled heating time profiles. Temperature
and ramp rate can be set and monitored individually and controlled from a few degrees above ambient
to 450 °C. The temperature hold period may extend past the point when evacuation is completed.
A programmable pressure threshold can suspend the temperature ramp if the outgassing pressure exceeds the limit specified, preventing destructive steaming or other undesired reactions with residual gasses and vapors.

Low Surface Area Measurement (Krypton) and Micropore Options

In addition to the standard ASAP 2425, low surface area krypton and micropore models are available.

Low surface area (krypton) model includes the addition of a 10 mmHg transducer and permits accurate
measurement of very low surface area materials (< 1 m2/g).

The micropore model includes the addition of a 1 mmHg transducer which extends the low pressure measurement capabilities and allows enhanced performance for characterizing microporous materials. The transducer also increases pressure resolution in the range necessary for micropore analysis.

Application

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.

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.

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.

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 waste-water management.

Carbon Black

The wear lifetime, traction, and performance of tires are related to the surface area of carbon blacks used in their production.

Catalyst

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.

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.

Projectile Propellant

The burn rate of propellants is a function of surface area. Too high a rate can be dangerous; too low a rate can cause malfunction and inaccuracy.

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.

Electronics

By selecting high surface area material with carefully designed pore networks, manufacturers of super-capacitors can minimize the use of costly raw materials while providing more exposed surface area for storage of charge.

Cosmetics

Surface area is often used by cosmetic manufacturers as a predictor of particle size when agglomeration tendencies of the fine powders make analysis with a particle-sizing instrument difficult.

Aerospace

Surface area and porosity of heat shields and insulating materials affect weight and function.

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.

Nanotubes

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

Fuel Cells

Fuel cell electrodes require high surface area with controlled porosity to produce optimum power density.

Superior Data Presentation Capability

Innovative MicroActive Software
Micromeritics’ innovative MicroActive software allows users to interactively evaluate isotherm data. Users can
easily include or exclude data, fitting the desired range of experimentally acquired data points using interactive,
movable calculation bars. Isotherms can be viewed on either a linear or logarithmic scale.

Data Reduction Benefits

Interaction with adsorption data is direct. By simply moving the calculation bars, the user is immediately updated with new textual properties.
Interactive data manipulation minimizes the use of dialog boxes and tunneling of dialogs to specify
calculation parameters.
Ability to overlay files (up to 25) including mercury intrusion data with a file add-and-subtract feature.
User-selectable data ranges through the graphic interface allow direct modeling for BET, t-Plot, Langmuir,
DFT interpretation, and much more.
Report Options editor allows the user to define reports with on-screen previews. Information from each
report can be included in a concise summary, as well as in a tabular and graphical information pane.

ASAP 2425 Interactive Reports include (when appropriate to the analysis performed):