Low Temperature Check
Automatic instrument for the determination for both TR TEST and BRITTLENESS POINT


Standards the instrument complies with:   
ASTM D746;   ASTM D1329;   ASTM D1414;   ASTM D2137;   FIAT 50416;   FIAT 50419;   ISO 812;   ISO 974;   ISO 2921;    

Overview 
Tests at low temperatures permit to evaluate the crystallization effects and to compare viscoelastic properties of rubber and rubber-like materials at low temperatures. Temperature Retraction and Brittleness Point tests are useful for the selection of materials suitable for low-temperature service.

Instrument characteristics 
The structure of the Low Temperature Check has been designed to permit the installation of arrangements for TR and Brittleness point tests.
The structure includes all common parts required for low temperature testing:
- 5 litres thermal insulated stainless steel bath for cooling liquid.
- heat exchangers for bath cooling - thermal resistance for bath heating
- PT 100 thermal sensor and PID thermoregulator with 0.1°C accuracy for the automatic regulation of both cooling and heating
- stirrer for bath homogenization
- compressed air pressure control and cleaning system.
- electronic card for the complete control fitted with usb port for connection to pc.
- safety devices: independent bath overheating controller, thermal switch, pneumatic lock for sample holders.

Cooling system 
The bath cooling devices provided by Gibitre can be either a nitrogen tank or a refrigeration unit.
The regulation of the cooling is automatically controlled by the instrument according to the temperature set of the test procedure in use.




Temperature retraction test 
The arrangement for TR test includes:
- Sample holder for the simultaneous test of 6 samples
- Pneumatic lifting system for the easy handling of the sample holder
- Windows bases software for TR test performance
The Sample Holder makes it possible to:
- carry out simultaneous testing on 6 samples.
- read automatically the retraction of each sample with 0.06 mm resolution
- lock sample position in extended position during test preparation
- automatically release of test samples at the end of the conditioning time.


 
The software permits to prepare and store test procedures with custom defined test conditions.
When the test procedure to be used has been selected:
- the user is asked to insert test identification, sample length and percentage elongation for each group of samples (up to 3 groups of samples can be tested simultaneously)
- the temperature of the cooling bath is automatically adjusted to the set value for sample immersion.
- when the immersion temperature has been reached, the operator is asked to insert the samples.
- after immersion, the instrument automatically regulates the conditioning temperature according to the requirements of the standards and measures conditioning time.


 
- the samples are automatically released after the defined conditioning time
- the test is started and the temperature is increased with 1°/min. gradient in conformity with the standards.
- the retraction curves, the temperature vs. time curve for each sample are automatically drawn until the set final temperature is reached.
- test results are calculated for each sample
- results are automatically compared with tolerance limits set for each product
- for each group of samples, statistic results (max. min. mean, standard deviation, Cp, Cpk) are calculated.
- at the end of the test, independent test reports for each group of samples can be prepared. The test report may include: customer logo, complete test identification, test conditions, sample initial length and % elongation, test curves, test results, test statistics, tolerance limits, legend of results, operator digital signature.
- test results and test curves for each sample are saved in Gibitre Standard database.
- software usage and report printout languages can be selected among the available ones (see table)



Brittleness point test 
The arrangement for Brittleness Point test includes:
- Pneumatically actuated striker
- Sample holder for the simultaneous test of 10 samples
- Windows bases software for Brittleness Point test performance
- Datagest software for database management.

The striker is in compliance with international standards and the clearance can be set according to the kind of test (4.8, 5.2, 5.7, 6.4 mm). A pneumatic piston drives the striker and permits to perform the tests while the samples are immersed in the cooling liquid. A pressure regulator enables the speed of the striker to be adjusted in compliance with standards depending from the number of samples and the density of the cooling liquid in use.
The software permits to prepare and store test procedures with custom test conditions.


 
When the test procedure to be used has been selected:
- the user is asked to insert test identification,
- the temperature of the cooling bath is automatically adjusted to the set value for sample immersion.
- when the immersion temperature has been reached, the user is asked to insert the samples.
- after immersion, the instrument automatically regulates the conditioning temperature according to the requirements of the standards and measures conditioning time.


 
- at the end of the tests, the software automatically calculates the Brittleness Point Temperature and 50% Brittleness Temperature.
- at the end of the test a reports can be prepared. The test report may include: customer logo, complete test identification, test conditions, detailed results at the end of each tests step, BPT and 50%BT, operator digital signature.
- BTP and 50%BT are saved in the database.
- software usage and report printout languages can be selected among the available ones (see table).



Accessories 
Die cutters conforming to international standards for preparing samples for TR-Test and Brittleness Point Test. The cutters are provided with dimension calibration report

Standard Calibration service for Low Temperature Check 
The calibration is performed with reference to the requirements of ISO 2921 and ISO 812 standards.
The service includes:
• Ordinaly maintenance of the instrument
• Calibration of the temperature of the cooling bath at 3 temperatures (0, -5, -35, -70°C).
• Calibration of the heating speed (gradient) of the cooling bath (NEW)
• Calibration of the time reading device (NEW)
• Calibration of the displacement of the 6 extensometers for TR Test (at 50, 70, 100 mm run).
• Verification of the pre-load force on the extensometers (NEW)
• Calibration of the distance between the nose of the striker for Brittleness point test and the sample holder.
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.


 



Industry 4.0 integration 
The instrument and the software have been specifically developed to optimize integration with other environments.
The database in SQL format and the Gibitre_Company_Connect program allows you synchronize your company management software with Gibitre database and to speed up the identification of the tests and to use bar-code readers or similar devices.
The automatic logging service permits to send alarm information to the cloud-service platform of Gibitre Instruments in order to optimize the reaction times of the Service Support.



TEST TEMPERATURE 
 
Cooling systems 
With Refrigeration unit OR
With Liquid nitrogen tank 
Test Temperature 
-120 ÷ +20 °C (with liquid nitrogen tank)
-70 ÷ +20 °C (with refrigeration unit) 
Temperature Control 
The regulation of the temperature is performed automatically by the instrument according to the temperature set in the selected test Procedure.
The regulation is made by means of thermo-regulator with PID microprocessor with 0.1 °C accuracy 
 
 
TEMPERATURE RETRACTION (TR) TEST  
 
Sample holders for TR Test 
Permits to test 6 samples at the same time 
Software for TR Test 
The program Gibitre-TR-test, compatible with Windows 7, 8 and 10, controls the complete test sequence and permits to save test results and retraction curves in the standard SQL gibitre database 
Numerical Test Data (for each test procedure up to 20 test results can be selected) 
TR-Test: TR10,TR30,TR50,TR70,TRx (x customer defined)
Time from test start at calculated TR points
Brittleness Point: Test temperature, Striker speed 
Graphic representation and printout 
% Retraction versus Temperature Curves for the 6 samples tested
Temperature versus Time curve during test 
Lifting System 
Pneumatic system for lifting sample holder for TR-Test. 
 
 
BRITTLENESS POINT TEST  
 
Sample holders 
Sample holder for 10 samples.
The gap between the striker and the sample holder can be set to: 4,8 5,2 5,7 6,4 mm 


Software for Brittleness Point Test 
The program Gibitre-TR-test, compatible with Windows 7, 8 and 10, controls the complete test sequence and permits to save temperature retraction temperature in the standard SQL gibitre database 
Speed of striker for Brittleness Point test 
Pressure regulator for pneumatic piston Striker with automatic or manual start-up 
 
 
CONTRUCTION CHARACTERISTICS OF THE INSTRUMENT 
 
Test chamber 
Test chamber capacity of 5 litres; Stainless steel chamber equipped with mixer to ensure the temperature of the test bath is uniform (ethyl alcohol - silicon oil). 
Power Supply 
220 VAC,50/60 Hz, single phase (110 VAC, 60 Hz on request) 
Electrical Power 
750 Watt 
Compressed air 
Min 6 bar. Air treatment unit (cleaning and lubrication) is included. 
Instrument dimensions 
(Width x Depth x Height) 700 x 710 x 1500 mm 
Weight 
235 Kg 
 
 
SAFETY DEVICES 
 
 
Safety Pushbutton
Safety temperature limit switch
CE labelling  
 
 
CALIBRATION 
 
Calibration Report 
with traceability to primary standards. 
 
 
PERSONAL COMPUTER (optional) 
 
Minimum configuration 
Intel Core i3 2 GB RAM 
Compatible Operating Systems 
Windows 7, 8 and 10 (64 bit) 
Connection to the instrument 
USB port 
Software usage Languages 
Italian, English, French, Spanish, German, Portuguese, Russian, Chinese, Japanese, Turkish, Polish, Czech 


Gibitre Instruments
Via dell'industria, 18
Bergamo (Italy)
te. +39 035 461146
www.gibitre.it
info@gibitre.it

© Gibitre Instruments
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Low Temperature Check
Automatic instrument for the determination for both TR TEST and BRITTLENESS POINT



Standards the instrument complies with:   ASTM D746;   ASTM D1329;   ASTM D1414;   ASTM D2137;   FIAT 50416;   FIAT 50419;   ISO 812;   ISO 974;   ISO 2921;    
Overview 
Tests at low temperatures permit to evaluate the crystallization effects and to compare viscoelastic properties of rubber and rubber-like materials at low temperatures. Temperature Retraction and Brittleness Point tests are useful for the selection of materials suitable for low-temperature service.
Instrument characteristics 
The structure of the Low Temperature Check has been designed to permit the installation of arrangements for TR and Brittleness point tests.
The structure includes all common parts required for low temperature testing:
- 5 litres thermal insulated stainless steel bath for cooling liquid.
- heat exchangers for bath cooling - thermal resistance for bath heating
- PT 100 thermal sensor and PID thermoregulator with 0.1°C accuracy for the automatic regulation of both cooling and heating
- stirrer for bath homogenization
- compressed air pressure control and cleaning system.
- electronic card for the complete control fitted with usb port for connection to pc.
- safety devices: independent bath overheating controller, thermal switch, pneumatic lock for sample holders.
Cooling system 
The bath cooling devices provided by Gibitre can be either a nitrogen tank or a refrigeration unit.
The regulation of the cooling is automatically controlled by the instrument according to the temperature set of the test procedure in use.
Temperature retraction test 
Instrument setup
The arrangement for TR test includes:
- Sample holder for the simultaneous test of 6 samples
- Pneumatic lifting system for the easy handling of the sample holder
- Windows bases software for TR test performance
The Sample Holder makes it possible to:
- carry out simultaneous testing on 6 samples.
- read automatically the retraction of each sample with 0.06 mm resolution
- lock sample position in extended position during test preparation
- automatically release of test samples at the end of the conditioning time.

 
Software for TR Test
The software permits to prepare and store test procedures with custom defined test conditions.
When the test procedure to be used has been selected:
- the user is asked to insert test identification, sample length and percentage elongation for each group of samples (up to 3 groups of samples can be tested simultaneously)
- the temperature of the cooling bath is automatically adjusted to the set value for sample immersion.
- when the immersion temperature has been reached, the operator is asked to insert the samples.
- after immersion, the instrument automatically regulates the conditioning temperature according to the requirements of the standards and measures conditioning time.

 
- the samples are automatically released after the defined conditioning time
- the test is started and the temperature is increased with 1°/min. gradient in conformity with the standards.
- the retraction curves, the temperature vs. time curve for each sample are automatically drawn until the set final temperature is reached.
- test results are calculated for each sample
- results are automatically compared with tolerance limits set for each product
- for each group of samples, statistic results (max. min. mean, standard deviation, Cp, Cpk) are calculated.
- at the end of the test, independent test reports for each group of samples can be prepared. The test report may include: customer logo, complete test identification, test conditions, sample initial length and % elongation, test curves, test results, test statistics, tolerance limits, legend of results, operator digital signature.
- test results and test curves for each sample are saved in Gibitre Standard database.
- software usage and report printout languages can be selected among the available ones (see table)
Brittleness point test 
Instrument setup
The arrangement for Brittleness Point test includes:
- Pneumatically actuated striker
- Sample holder for the simultaneous test of 10 samples
- Windows bases software for Brittleness Point test performance
- Datagest software for database management.

The striker is in compliance with international standards and the clearance can be set according to the kind of test (4.8, 5.2, 5.7, 6.4 mm). A pneumatic piston drives the striker and permits to perform the tests while the samples are immersed in the cooling liquid. A pressure regulator enables the speed of the striker to be adjusted in compliance with standards depending from the number of samples and the density of the cooling liquid in use.
The software permits to prepare and store test procedures with custom test conditions.

 
Software for Brittleness Point
When the test procedure to be used has been selected:
- the user is asked to insert test identification,
- the temperature of the cooling bath is automatically adjusted to the set value for sample immersion.
- when the immersion temperature has been reached, the user is asked to insert the samples.
- after immersion, the instrument automatically regulates the conditioning temperature according to the requirements of the standards and measures conditioning time.

 
- at the end of the tests, the software automatically calculates the Brittleness Point Temperature and 50% Brittleness Temperature.
- at the end of the test a reports can be prepared. The test report may include: customer logo, complete test identification, test conditions, detailed results at the end of each tests step, BPT and 50%BT, operator digital signature.
- BTP and 50%BT are saved in the database.
- software usage and report printout languages can be selected among the available ones (see table).
Accessories 
Die cutters conforming to international standards for preparing samples for TR-Test and Brittleness Point Test. The cutters are provided with dimension calibration report

Standard Calibration service for Low Temperature Check 
The calibration is performed with reference to the requirements of ISO 2921 and ISO 812 standards.
The service includes:
• Ordinaly maintenance of the instrument
• Calibration of the temperature of the cooling bath at 3 temperatures (0, -5, -35, -70°C).
• Calibration of the heating speed (gradient) of the cooling bath (NEW)
• Calibration of the time reading device (NEW)
• Calibration of the displacement of the 6 extensometers for TR Test (at 50, 70, 100 mm run).
• Verification of the pre-load force on the extensometers (NEW)
• Calibration of the distance between the nose of the striker for Brittleness point test and the sample holder.
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.

Gibitre calibration service

 
Industry 4.0 integration 
The instrument and the software have been specifically developed to optimize integration with other environments.
The database in SQL format and the Gibitre_Company_Connect program allows you synchronize your company management software with Gibitre database and to speed up the identification of the tests and to use bar-code readers or similar devices.
The automatic logging service permits to send alarm information to the cloud-service platform of Gibitre Instruments in order to optimize the reaction times of the Service Support.

More info

Standards the instrument complies with:  
ASTM D746; ASTM D1329; ASTM D1414; ASTM D2137; FIAT 50416; FIAT 50419; ISO 812; ISO 974; ISO 2921;  
TEST TEMPERATURE 
 
Cooling systems 
With Refrigeration unit OR
With Liquid nitrogen tank 
Test Temperature 
-120 ÷ +20 °C (with liquid nitrogen tank)
-70 ÷ +20 °C (with refrigeration unit) 
Temperature Control 
The regulation of the temperature is performed automatically by the instrument according to the temperature set in the selected test Procedure.
The regulation is made by means of thermo-regulator with PID microprocessor with 0.1 °C accuracy 
 
 
TEMPERATURE RETRACTION (TR) TEST  
 
Sample holders for TR Test 
Permits to test 6 samples at the same time 
Software for TR Test 
The program Gibitre-TR-test, compatible with Windows 7, 8 and 10, controls the complete test sequence and permits to save test results and retraction curves in the standard SQL gibitre database 
Numerical Test Data (for each test procedure up to 20 test results can be selected) 
TR-Test: TR10,TR30,TR50,TR70,TRx (x customer defined)
Time from test start at calculated TR points
Brittleness Point: Test temperature, Striker speed 
Graphic representation and printout 
% Retraction versus Temperature Curves for the 6 samples tested
Temperature versus Time curve during test 
Lifting System 
Pneumatic system for lifting sample holder for TR-Test. 
 
 
BRITTLENESS POINT TEST  
 
Sample holders 
Sample holder for 10 samples.
The gap between the striker and the sample holder can be set to: 4,8 5,2 5,7 6,4 mm 
Software for Brittleness Point Test 
The program Gibitre-TR-test, compatible with Windows 7, 8 and 10, controls the complete test sequence and permits to save temperature retraction temperature in the standard SQL gibitre database 
Speed of striker for Brittleness Point test 
Pressure regulator for pneumatic piston Striker with automatic or manual start-up 
 
 
CONTRUCTION CHARACTERISTICS OF THE INSTRUMENT 
 
Test chamber 
Test chamber capacity of 5 litres; Stainless steel chamber equipped with mixer to ensure the temperature of the test bath is uniform (ethyl alcohol - silicon oil). 
Power Supply 
220 VAC,50/60 Hz, single phase (110 VAC, 60 Hz on request) 
Electrical Power 
750 Watt 
Compressed air 
Min 6 bar. Air treatment unit (cleaning and lubrication) is included. 
Instrument dimensions 
(Width x Depth x Height) 700 x 710 x 1500 mm 
Weight 
235 Kg 
 
 
SAFETY DEVICES 
 
 
Safety Pushbutton
Safety temperature limit switch
CE labelling  
 
 
CALIBRATION 
 
Calibration Report 
with traceability to primary standards. 
 
 
PERSONAL COMPUTER (optional) 
 
Minimum configuration 
Intel Core i3 2 GB RAM 
Compatible Operating Systems 
Windows 7, 8 and 10 (64 bit) 
Connection to the instrument 
USB port 
Software usage Languages 
Italian, English, French, Spanish, German, Portuguese, Russian, Chinese, Japanese, Turkish, Polish, Czech 
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