Posted in | Surface Analyzers

ASAP 2020 Plus Accelerated Surface Area and Porosimetry System

  • The ASAP 2020 Plus is a high-resolution surface area and porosity analyzer
  • It is perfect for research, development, and quality control purposes
  • It is an independent preparation and analysis instrument in a single cabinet 

The surface area, pore volume, and pore size of powders and porous materials can be measured using the high-resolution ASAP 2020 Plus adsorption analyzer. Standard methods or user-customized procedures can be utilized to characterize catalysts, absorbents, zeolites, active pharmaceutical ingredients (API), metal-organic frameworks (MOFs), excipients, and a wide range of porous and non-porous materials.

The ASAP 2020 Plus offers exceptional accuracy, resolution, and data reduction and is well suited for gas adsorption analysis of mesoporous (2 to 50 nm) and microporous (0.35 to 2 nm) materials.  To increase the ASAP 2020 Plus physisorption’s analytical range, a vapor sorption option can be introduced.

The ASAP 2020 plus can now be utilized for physical and chemical adsorption to characterize the active surface and texture of catalysts, catalyst supports, sensors, and a wide range of other materials, thanks to the addition of a chemisorption option.

Features and Benefits

Design Versatility

  • Two separate vacuum systems enable concurrent preparation of two samples while analyzing another. This boosts staff productivity and return on investment.
  • The innovative Isothermal Jacket Cold Zone Control and continuous saturation pressure (Po) monitoring provide a stable thermal environment for saturation pressure and adsorption. Invest time in outcomes rather than managing temperature fluctuations.
  • Numerous extra attachments are available for the ASAP 2020 Plus for customization to the user's analytical needs.

Advanced Capabilities Through Optional Configurations

The ASAP 2020 Plus can be designed to meet individual requirements, with the option of upgrading at a later time as analytical needs change, increasing the value of this instrument and the investment.

Users can choose between low surface area, heated vapor, and micropore capabilities. When working with hostile vapors, add a cryostat or external detector, or modify the machine for increased chemical resistance. The ASAP 2020 Plus is a single instrument designed to meet almost all surface characterization requirements in the laboratory. 

The addition of a chemisorption option broadens the ASAP 2020 plus's application range to include physical and chemical adsorption for assessing the texture and active surface of catalysts, catalyst supports, sensors, and several other materials.

Unique and Innovative Isothermal Jacket Cold Zone Control

Isothermal jackets are guaranteed for the life of the instrument and maintain a consistent thermal profile over the whole length of the sample and saturation pressure (Po) tubes.


Source: Micromeritics Instrument Corporation

  Physisorption Chemisorption
Analysis Range 1.3 x 10-9 to 1.0 P/P0 1 x 10-6 to 900 torr
Roughing Pump 4 stage diaphragm 4 stage diaphragm
Krypton Analysis optional standard
Minimum Measurable Surface Area Standard 0.01 m2 /g 0.01 m2 /g
Krypton 0.0005 m2 /g 0.0005 m2 /g
  Physisorption Chemisorption
Adsorptive Gas Inlets 6 12 standard; optional up to 16
Vapor Sorption Option Included, optional heated vapor source Included, optional heated vapor source
Furnace N/A Ambient to 1100 °C
Programmable from 0.1 to 50 °C/min
Degas 2 2
Pressure Transducer System 1000 torr 0.12 % reading 1000 torr 0.12 % reading
Transducer Accuracy 10 torr 0.12 % reading 10 torr 0.12 % reading
0.1 torr 0.15 % reading 0.1 torr 0.15 % reading
  Physisorption Chemisorption
Cryogen Dewar 3.2 L, unlimited holding time with refill during analysis 3.2 L, unlimited holding time with refill during analysis
Cryogen Free Space Control Isothermal Jacket Isothermal Jacket
Data Analysis for Texture and Active Area BET Surface Area, t-Plot, BJH, Horvath-Kawazoe, Saito-Foley, Cheng-Yang, DFT, NLFT, and others Metal dispersion, Metal surface area, Crystallite Size
Advanced Modeling Heat of Adsorption, GAB, Sips, Toth, dissociative Langmuir, Redlich-Peterson, Virial Equation, AutoFit BET
Instrument Operation Dashboard Dashboard permits real-time monitoring of critical parameters


Technology and Configuration

ASAP 2020 PLUS–Chemisorption

Users can gain vital information on the physical and chemical characteristics of their catalyst, catalyst support, adsorbents, and other materials using the ASAP 2020 Plus Chemisorption option. Its unique design ensures a high level of system cleanliness, allowing for low-pressure chemisorption isotherms.

ASAP 2020 Plus Accelerated Surface Area and Porosimetry System

Image Credit: Micromeritics Instrument Corporation

ASAP 2020 PLUS–Physisorption

Research grade results in an instrument that the user can customize to suit a broad range of mesopore, micropore, and low surface area applications.

ASAP 2020 Plus Accelerated Surface Area and Porosimetry System

Image Credit: Micromeritics Instrument Corporation

Designed for Expanding Needs

  • Micropore Option: A 0.1-mmHg transducer and a high vacuum pump are included. This device gives accurate porosity data on pores ranging in size from 0.35 to 3 nanometers, as well as a wide range of micropore reports.
  • Vapor Adsorption Option: Optional vapor accessories are included.
  • Cold Trap Option: A cold trap option is offered for the specific application. 



The purification, processing, blending, tableting, and packaging of drugs, as well as their usable shelf life, dissolution rate, and bio-availability, are significantly influenced by surface area and porosity.


Surface area and porosity impact greenware curing and bonding, as well as the strength, texture, appearance, and density of finished goods. Shrinkage, crazing, and crawling are all affected by the surface area of glazes and glass frits.


Understanding surface area, total pore volume, and pore size distribution is critical for industrial adsorbent quality management and separation process development. The surface area and porosity of an adsorbent influence its selectivity.

Activated Carbons

To achieve gasoline vapor recovery in vehicles, solvent recovery in painting processes, or pollution controls in wastewater management, surface area, and porosity must be optimized within tight limits.

Carbon Black

The surface area of carbon blacks utilized in tire manufacture is associated with tire wear lifespan, traction, and performance.

Fuel Cells

To achieve optimal power density, fuel cell electrodes must have a large surface area with regulated porosity.


The pore structure and active surface area of catalysts impact production rates. By restricting the pore size, only molecules of the required size can enter and depart, resulting in a selective catalyst that produces predominantly the intended product.

Paints and Coatings

The gloss, texture, color, color saturation, brightness, solids content, and film adhesion qualities of a pigment or filler are all affected by its surface area. In offset printing, the porosity of a print medium coating impacts blistering, ink receptivity, and ink holdout.

Projectile Propellent

Propeller burn rate is a function of surface area; too high a rate can be harmful, while too low a rate might cause malfunction and inaccuracy.

Medical Implants

Controlling the porosity of artificial bone allows it to mimic actual bone and be accepted by the body, allowing tissue to develop around it.


Manufacturers of super-capacitors can reduce the utilization of expensive raw materials while offering greater exposed surface area for charge storage by using high surface area materials with properly constructed pore networks.


Cosmetic manufacturers frequently employ surface area as a predictor of particle size when the agglomeration tendencies of fine powders make evaluation with a particle-sizing device problematic.


The weight and functionality of heat shields and insulating materials are influenced by their surface area and porosity.


Porosity is correlated with both the volume of fluid that a structure can hold and the amount of work necessary to extract it. It is therefore significant in the fields of groundwater hydrology and petroleum exploration.


The ability of a material to hold hydrogen is predicted using the surface area of nanotubes and microporosity.

More Applications

  • Adhesives
  • Alloys
  • Abrasives
  • Carbonates
  • Cements
  • Clays
  • Detergents
  • Fibers
  • Films
  • Fertilizers
  • Filters
  • Glass
  • Food Additives
  • Graphite
  • Minerals
  • Paper
  • Polishing Compounds
  • Polymers
  • Resins
  • Soils and Sediments


Source: Micromeritics Instrument Corporation

Part Number Description Comments
  Gas Supply  
004-62230-32 Gas Pressure Regulator for CO2 2-stage gas regulator, CGA 320, delivery pressure range: 2-30 psig 
004-62230-35 Gas Pressure Regulator for CO and H2 2-stage gas regulator, CGA 350, delivery pressure range: 2-30 psig 
004-62230-54 Gas Pressure Regulator for O2 2-stage gas regulator, CGA 540, delivery pressure range: 2-30 psig 
004-62230-58 Gas Pressure Regulator He, N2, Kr, Ar 2-stage gas regulator, CGA 580, delivery pressure range: 2-30 psig 
004-62230-326 Gas Pressure Regulator for N2O 2-stage gas regulator, CGA 326, delivery pressure range: 2-30 psig 
004-62230-705 Gas Pressure Regulator for NH3 2-stage gas regulator, CGA 705, delivery pressure range: 2-30 psig 
004-25549-00 Reducer 1/8 in. Tube x 1/4 in. Tube  
004-25103-00 Ferrule, Front, Teflon, 1/4 in. For use with 1/8 in. tube × 1/4 in. tube reducer
004-25104-00 Ferrule, Rear, Nylon, 1/4 in. For use with 1/8 in. tube × 1/4 in. tube reducer
004-33601-00 Gas Regulator Expansion Kit Adds an additional outlet to the gas regulator
004-33602-00 Gas Regulator Pressure Relief Kit Prevents excessive gas pressure in the event of a regulator failure (not to be used with toxic gases)
290-25846-00 Gas Inlet Line 6' For connecting gas to the instrument, Copper, 1/8 in x 6 ft long
290-25846-01 Gas Inlet Line 16' For connecting gas to the instrument, Copper, 1/8 in x 16 ft long
201-25818-00 Gas Inlet Line 6', SS For connecting gas to the instrument, Stainless Steel, 1/8 in x 6 ft long
201-25818-01 Gas Inlet Line 16', SS For connecting gas to the instrument, Stainless Steel, 1/8 in x 16 ft long
004-25913-00 1/8 Peek Ferrule Set  For sealing gas inlet lines into the gas inlet manifold assemblies
  Vacuum Supply  
062-00200-00 Dry Vacuum Forepump  For systems with high-vacuum option, 115/230 VAC
004-62023-01 Service Kit Vacuum Forepump  
062-62801-23 Vacuum Oil Pump, 220/240 V  Replacement pump only, does not include exhaust filter, foreline trap, or vacuum pump tray
062-62801-11 Vacuum Oil Pump, 110/120 V  Replacement pump only, does not include exhaust filter, foreline trap, or vacuum pump tray
062-33002-00 Vacuum Foreline Oil Trap For one vacuum pump, includes: activated alumina, clamps, o-rings, fittings, and housing
004-25509-00  Clamp  NW 10/16, clamp to connect flex tube to pump or instrument
004-25630-00 Centering Ring NW 16, sealing ring to connect forepump to instrument
004-25652-00 O-Ring for Oil Vapor Trap Size 217, Viton
004-16830-00 Activated Alumina 500 g, for oil vapor trap
004-16003-01 Vacuum Pump Oil 1 ltr
004-32177-00 Funnel for Filling Vacuum Pump with Oil  
004-27040-00 Vacuum Pump Exhaust Filter  
  Reference Materials  
004-16843-00 Reference Material 13X Zeolite Micropore reference material
004-16844-00 Reference Material Y Zeolite Micropore reference material
004-16821-00 Reference Material Silica Alumina Reference material for surface area and pore volume, S(BET) appr. 200 m2/g
004-16833-00 Reference Material Carbon Black Reference material for surface area, S(BET) appr. 30 m2/g
004-16858-00 Reference Material Alumina Reference material for surface area, S(BET) appr. 5 m2/g
004-16816-00 Reference Material Alumina Reference material for surface area with Krypton analysis, S(BET) appr. 0.25 m2/g
  General Operating Supplies  
003-63801-01 Cable Ethernet Straight-Thru For connecting the instrument to a computer
202-25849-00 Dewar for Cold Trap 3 ltr
202-25850-00 Dewar for Analysis Port 3 ltr
202-31707-00 Cover Analysis Dewar  
202-31708-00 Cover for Cold Trap Dewar  
206-14701-00 Dewar Shield For use on sample port, cold trap, and degas ports
202-14702-00 Dewar shield  For use with the Chiller Dewar Option
202-33053-00 Stainless Steel Dewar Kit 4 ltr, wide mouth, includes analysis dewar, cold trap dewar, and elevator adapter. Typically provides greater than 40 hours of unattended analysis.
240-25901-00 Dewar Dip Stick For checking liquid nitrogen level in Dewar
200-25840-00 Saturation Pressure (P0) Tube Includes isothermal jacket
004-25006-00 O-Ring for P0 Tube Size 006, Buna-N
003-26043-00 Heating Mantle With type K thermocouple, up to 450 °C, 24 V
003-26045-00 Heating Mantle  Side-laced to accommodate monolithic & nonstand sample tubes, with type K thermocouple, up to 450 °C, 24 V
230-25808-00 Heating mantle clip For monolithic & nonstandard sample tubes
004-61063-00 Tube for Cold Trap 1/2 in. OD stem
004-25469-00 O-ring for Cold Trap Size 014, Buna-N
200-25979-00 Nut for Cold Trap  
  Sample Tubes and Accessories  
202-33100-06 Physisorption Operating Supplies Includes: 3 sample tubes (1/2 in.), O-rings, sample port frits, 1/8 Peek ferrule sets
202-33100-12 Extended Physisorption Operating Supplies Includes: 6 sample tubes (1/2 in.), 1 filler rod, 1 isothermal jacket, 3 sample tube stoppers, O-rings, sample port frits, 1/8 Peek ferrule sets, sample tube brush, dewar cover, reference material
240-61003-00 Sample Tube, 1/2 in.  
240-61002-00 Sample Tube, 3/8 in.  
240-61001-00 Sample Tube, 1/4 in.  
202-25903-00 Isothermal Jacket for 1/2 in. Sample Tube  
202-25902-00 Isothermal Jacket for 3/8 in. Sample Tube  
202-25901-00 Isothermal Jacket for 1/4 in. Sample Tube  
240-61016-00 Fillder Rod for 1/2 in. Sample Tube  
240-61015-00 Filler Rod for 3/8 in. Sample Tube  
240-61014-00 Filler Rod for 1/4 in. Sample Tube  
240-32000-00 Stopper for 1/2 in. Sample Tube  
004-32004-00 Stopper for 3/8 in. Sample Ttube  
004-32604-00 Cap (stopper) for 1/4 in. Sample Tube   
260-25843-00 Ferrule for 1/2 in. Sample Tube  
240-25802-00 Ferrule for 3/8 in. Sample Tube  
240-25803-00 Ferrule for 1/4 in. Sample Tube  
004-25044-00 O-Ring for 1/2 in. Sample Tube Size 013, Buna-N
004-25022-00 O-Ring for 3/8 in. Sample Tube Size 012, Buna-N, 
004-25466-00 O-Ring for 1/4 in. Sample Tube Size 010, Buna-N, 
260-25890-00 Seal Frit for 1/2 in. Sample Tube  With built-in check valve for air-sensitive samples
260-25891-00 Opener for Seal Frit Installed in ports to open Seal Frits
004-54130-00 Removal Tool for Seal Frit opener Tool to install and remove Seal Frit opener
004-54618-00 Tool for Removing the Sample Port O-Ring  
004-27041-00 Sample Port Frit 20 µm, SS, 1/4 in.
004-25466-00 O-Ring for Sealing Frit in Sample Port Size 010, Buna-N
240-14855-00 Sample Tube Holder Rack for 12 sample tubes
240-32805-00 Support for Sample Tube Weighing Sample tube holder for balance
240-25853-00 Funnel For sample tubes (fits various sample tube sizes)
004-54609-00 Brush For cleaning sample tube, 330 mm long
300-25824-00 Nut for Sample Tube  
202-33052-00 22 mm ID Sample Tube Kit Includes 5 sample tubes and accessories, see kit contents below
202-61022-00 Sample Tube, 22 mm ID, 25 mm OD  
202-25904-00 Isothermal Jacket for 25 mm Sample Tube  
202-61022-01 Filler Rod for 25 mm Sample Tube  
004-32230-00 Stopper for 25 mm Sample Tube  
202-25870-00 Ferrule for 25 mm Sample Tube  
004-25609-02 O-Ring Size 022, Buna-N
202-25868-00 Sample Port Fitting for 25 mm Sample Tube  
202-25869-00 Nut for 25 mm Sample Tube  
202-25871-00 Degas Port Fitting for 25 mm Sample Tube  
202-31709-00 Dewar Cover for 25 mm Sample Tube  
  Vapor Option Supplies  
003-20656-02 Cable, M/M 15 Pin D 5 ft straight-thru For connecting the controller to the vapor source
003-20656-03 Cable, M/M 25 Pin D 5 ft straight-thru For connecting the controller to the manifold
004-25103-00 Ferrule, Front, Teflon, 1/4 in. For sealing the vapor stem assembly to the vapor connector
004-25104-00 Ferrule, Rear, Nylon, 1/4 in. For sealing the vapor stem assembly to the vapor connector
004-25031-00 O-Ring for Replacement on the Vapor Stem Assembly Size 110, Kalrez 
004-25465-00 O-Ring for Replacement on the Vapor Stem Assembly Size 010, Kalrez 
004-61004-00 Dewar Flask 350 mL
004-61630-00 Glass Vapor Tube  
202-25878-00 Sample Port Insulator  
202-33054-02 Sample Tube Conductor Kit Contains 2 sample tube conductors and 2 O-Rings
202-34150-02 Vapor Stem Assembly  
  Software and Manual  
202-20828-00 ASAP 2020 Plus Physisorption software program  
202-33027-00 MicroActive Software Package, interactive data analysis software
202-42800-00 ASAP 2020 Plus Operator Manual (includes binder and dividers)
  Temperature Control Devices  
205-33005-00 ISO Controller Micromeritics’ ISO Controller utilizes thermoelectric cooling based on the Peltier principle. The unit is designed to maintain a constant temperature between 0 °C and 80 °C when using CO2, N2, and other gases for adsorption analysis. The device rapidly cools and efficiently maintains temperature with minimal electrical current required. The sample area will accommodate up to 3 sample tubes. Heat removal is uniform and accurate when the unit is used with an appropriate liquid (ambient water or liquid antifreeze). The dewar section is placed on the instrument dewar elevator and then raised into position for analysis.
025-00202-00 Chiller Dewar A closed plumbing system that circulates fluid from a temperature-controlled bath into a small Dewar filled with antifreeze in which the sample tubes are immersed.
025-26004-00 Recirculating Bath Temperature range from -28 °C to 200 °C, 115 V, 60 Hz. Refrigerated and heating circulator for temperature control of the Chiller Dewar. Note: Recommended for use with the Chiller Dewar Option 025-00202-00
025-33001-00 RTD Probe for Recirculating Bath Temperature Control Optional RTD mounted in the bath and connected to the controller on the recirculating bath for more accurate temperature control (for use with 025/26004/00).
021-00000-00 LN2 transfer system For easy filling of sample Dewars; includes 47 L Dewar, mobile platform, and pump with 100 cm discharge line



Software and Reporting Versatility

The user-friendly ASAP 2020 software uses a Windows® interface that includes Wizards and applications that assist in organizing, launching, and managing the analysis. Raw data can be gathered, organized, reduced, archived, and stored with standardized sample data and analytical settings for convenient access in the future.

Completed reports can be sent by data transfer routes, paper, or screens. Features include configurable reports, editable and scalable graphs, and cut-and-paste graphics. Extra capacities consist of:

  • Degas temperature profiles and treatment duration data are incorporated with the sample file for future reference and SOP compliance verification.
  • The Instrument Schematic screen shows the current operational condition of the instrument, including the real-time isotherm, and allows the operator to take manual control of the instrument if required.
  • Overlays can be used for comparison. 
  • Exportable data tables allow users to combine and compare data from several sources in a single spreadsheet file. 
  • Three forms of gas dosing processes offer excellent options for ensuring maximum speed and accuracy for samples with widely varying isotherm shapes.
  • The proprietary Smart Dosing™ procedure detects the sample’s ability to absorb gas and modifies the adsorptive dosages accordingly. This helps to avoid overdosing the sample and distorting porosity data.
  • Through a data file or table, the user can input any reference isotherm into the system. This isotherm can be used to calculate thickness for t-Plots, s (Alpha-S) plots, and BJH pore size distribution instead of using the pre-programmed thickness curves. For comparisons, it is possible to overlay additional plotted data with the reference isotherm.

Analyses and Reports

Potent data reduction software is included with the ASAP 2020 to offer a range of easy-to-interpret report options. This gives users a great deal of freedom in the selection of analysis constants to best fit their specific application. 

With the capacity to conduct adsorption and desorption studies throughout the whole pressure range, or collect data over a predetermined portion of the pressure range, all ASAP models can provide comprehensive surface area and porosity data.

ASAP 2020 Plus Accelerated Surface Area and Porosimetry System

Image Credit: Micromeritics Instrument Corporation

The model ASAP 2020 comprises:

  • Pore volume and total pore volume in a user-defined pore size range
  • F-Ratio plots that illustrate the difference between theoretical and experimental isotherm data
  • Heat of Adsorption
  • Repetitive Isotherm Cycling
  • DFT (Density Functional Theory)
  • Single- and Multipoint BET (Brunauer, Emmett, and Teller) surface area
  • Langmuir surface area
  • Temkin and Freundlich isotherm analyses
  • Pore volume and pore area distributions in the mesopore and macropore ranges by the BJH (Barrett, Joyner, and Halenda) method using a variety of thickness equations (including user-defined, standard isotherms). 

ASAP 2020 Plus Accelerated Surface Area and Porosimetry System

Image Credit: Micromeritics Instrument Corporation

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