Version history

Current version:

1.3.3.1

Download latest version of ARKS AC

Modifications: 

Version 1.3.3.1 released 18 November 2025

A minor bug in the pressure correction module has been fixed. In some cases, automatic detection of the initial pressure and temperature of the inert gas (pad gas) was blocked, which caused inconvenience. This version is protected by the same registration key as ARKS AS 1.3.21 / 1.3.30 and does not require new registration.

Version 1.3.3.0 released 11 April 2025

The main feature if this version is that it includes a significantly improved vent sizing module. This version is protected by the same registration key as ARKS AC 1.3.21 

Verion 1.3.2.1 released 18 September 2024

This version has the same features as v. 1.3.2 but is protected by updated more reliable protocol. Requires new registration key

Verion 1.3.2 released 07 September 2024

The minor bugs have been fixed.

Modifications: 

Verion 1.3.15 released 22 April 2023

1. The minor updates in this version provide correct functioning of the program under Windows 11.
2. For the current users of ARKS AC version 1.3.12 it is enough to download and run the
    ARKS AC Patch 2. It will automatically update the exectutable and documentation.

Version 1.3.12, released 03 October 2022

Improved method of creating an MS Word report has been employed. There may have been a problem with 
this option when using modern computers with high frequency multi-core processors (e.g. 3.2 GHz). The improved method avoids this problem. 

Version 1.3.11, released 23 March2022

This version of ARKS AC includes modified Vent Sizing module. Modification of the calculation algorithm has been made to provide better convergence to the solution even for difficult cases. 

Version 1.3.10, released 26 February 2022

This is the complete version of ARKS AC with new essentially redesigned more reliable Vent Sizing module with the improved vent sizing methods for vent sizing.

Version 1.3.00, released 30 December 2021

• Much more accurate robust method for estimation of the parameters of Antoine
  equation has been designed and incorporated.
• New unique procedure is available for taking into account the multiple HWS. In some
  cases  when reaction includes several partly separated stages, in the end of a stage
  self heat rate may become lower than the calorimeter's sensitivity and few HWS steps are
  to be applied for triggering the next stage. In such the cases all the intermediate HWS
  fragments must be taken into account in a special way using History option.

• This version allows data transfer into ARKS FK and ARKS CK kinetic programs
  which includes information sufficient for taking into account variation of thermal inertia
  due to temperature dependencies of heat capacities of sample and bomb material. It
  allows further data analysis without the obligatory assumption about constant value of
  the phi-factor. 
          Note
  New versions of ARKS FK 1.2 and ARKS CK 1.2 will be required to utilize this new
  feature in full measure. These version will be available by the end of January 2022.

• At the moment ARKS AC v. 1.3 goes without Vent Sizing module. It is because the
  new, more reliable module with the improved vent sizing methods is under
  development. The complete version 1.3.1 with Vent sizing will be available soon for the
  upgrade. The version  1.3 is made available to allow our users to apply  important
  improvements without further delay. 

         Attention!
Current users will have to get new registration key.
 

Version 1.2.00, released 15 September 2020

• The advanced method for vapor pressure determination is designed and added, it allows more accurate calculation of gas generation by a reaction. The detailed description of the method can be found in the updated User's Guide.

Attention!

• Current users will have to get new registration key.
• New version ARKS DConv 1.0.03 is also available. We recommend to download and install it as well.
   

Version 1.1.02, released 3 May 2020

• Further  improvement of functionality of the procedure for Vapor pressure correction

Version 1.1.01, released 14 February 2020

• Fixed bug in the procedure for vapor pressure correction

Version 1.1.00, released 10 January 2020

• Improved options for data processing
• essentially improved algorithms used for vent sizing

Version 1.0.21, released 31 July 2019

The possibility to estimate TMR for phi-factor other than 1 has been added

Version 1.0.2, released 2 June 2019

Minor improvements of the Determining onset temperature procedure

Version 1.0.1, released 29 May 2019

Minor problem in the Multigraph module has been fixed

Version 1.0.0, released 1 May 2019

The first version of the program belonging to new software line TSS-ARKS