Low Temperature Testers
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Low Temperature Testers For rubber materials there are four important standardised test methods for Low Temperatures 1. TR test according to ISO 2921. This method determines the low temperature characteristics by the temperature retraction procedure. The values TR10 and TR30 are often used in material specifications. The software can present a curve with the elastic retraction up to 70 %. 2. Gehman test according to ISO 1432. This method measures the relative stiffness as a function of the temperature. The result is presented as the relative stiffness where the stiffness in RT is 1. If the test piece dimension are put into the software it can also calculate the modulus as a function of temperature. 3. Brittleness test according to ISO 812. This method determines the lowest temperature at which rubber materials do not exhibit brittle failure when impacted under specified conditions. 4. Low Temperature Compression Set according to ISO 815‑2. This test measures the elastic recovery after a test piece has been held compressed at low temperature for some time. The TR Tester, Gehman Tester and Brittleness Tester can be combined using the same base unit and a rig changing system. The combined instrument consists of a base unit with a cooling bath and the electronics. The three different test rigs are then mounted on a carousel. No lifting is necessary when switching from one method to another. An automatic computerised Low Temperature Tester increases the precision up to 5 times. The capacity will also increase with about 50 % and not least the labour time will decrease about 75 %. Brittleness, TR and Gehman combined. Elastocon AB • Tvinnargatan 25 • SE-507 30 Brämhult • Sweden Phone: +4633-22 56 30 • E-mail: info@elastocon.se

for determination of low temperature retraction Combined instrument. TR Tester, ET 01-II, for determination of low temperature characteristics by the temperature retraction procedure according to ISO 2921 and ASTM D1329. The Elastocon TR Tester, has 6 test stations, is computerized and performs the test automatically after the cooling media has been cooled down, and the samples have been mounted. The instrument has an automatic release of the samples, after the pre-cooling time. The computer controls both the temperature rise and measures the length change of the samples. The results are...

for determination of low temperature retraction Combined instrument. Gehman Tester, ET 02-II, for determination of the relative stiffness characteristics of vulcanized or thermoplastic rubbers, also called the Gehman procedure. The test is done according to ISO 1432, ASTM D1053, or technical equivalent standards. The Elastocon Gehman Tester, has 6 test stations, is computerised and performs the test automatically. The computer controls both the temperature rise and measures the torsion angle of the samples. The results are displayed in a graph and RM2, RM5, RM10 and RM100 values are...

for determination of low temperature retraction Combined instrument. Elastocon Brittleness Tester, ET 05-II, for automatic determination of Brittleness point according to ISO 812, ISO 974, ASTM D746 and ASTM D2137. The price includes the instrument, the software, and the computer. The test rig is raised by pneumatic cylinders, which require an air supply of 6 Bar. The brittleness tester is designed as a falling weight tester, where the speed is set by the height and the energy by the attached weights. The computer controls the temperature rise and measures the temperature at impact. The...

Low Temperatures Compression Set (LTCS), EC 10. This software can monitor the temperature during the test time and records the recovery when the test piece is released. By setting evaluation points, the results at 30 s, 30 min etc can be presented as well as a graph of the compression set as a function of time. The test rig in the Freezer ET 03 adapted for Low Temperature compression set. Performing compression set at low temperatures without having to open the deepfreezer and influence the compression set result has always been a problem. By using our EV 09 compression rig in combination...

Technical specifications, TR Tester, ET 01-II and Gehman Tester, ET 02-II Temperature control Temperature range, °C: Accuracy,°C: Resolution,°C: Sensor: Indicators, no: Resolution, mm (01-II)/°(02-II): Measuring range, mm (01-II)/°(02-II): Length measurement 6 pc digital encoders 0,1 0–150 Angle measurement 6 pc digital encoders 0,2 0–182 (1) Test rig Rig material: Specimen sizes, mm: Max extension %: Min/max test samples, l × w × t, mm: Test stations: stainless steel and aluminium 25 to 100 250 (with 50 mm test piece) – 6 Other specifictions Dimensions, external, w × h × d, mm: Weight, kg:...

Temperature control Temperature range,°C: Accuracy,°C: Resolution,°C: Sensor: Speed measurement Indicators: Resolution, m/s: Test rig Rig material: Specimen types: Test pieces, no: Other specifictions Dimensions, external, w x h x d, mm: Weight, kg: Cooling liquid volume, l: Voltage, V: Power, W: Air supply, Bar: Computer connection: stainless steel and aluminium A and B (ISO 812) 6 680 x 1 100 (1 420) (1) x 710 approx 105 about 8 220-240 VAC 50/60 Hz (alt 110-120 VAC) 600 4-6 Ethernet ISO 812 , ASTM D 746 method A, ASTM D 2137 (1) Test rig in raised position. • The casing consists of...

Range, mm: Accuracy, mm: Resolution, mm: Dimensions, dia x h, mm: Weight, kg: Material: Temperature sensor: Standard: The test rig is equipped with a digital gauge connected to a PC for recording of the creep. ET 03 Low temperature freezer -45°C with ET03.01 Conversion kit for LTCS Outer dimensions: Height, mm: 850 Inside dimensions: Height, mm: 650 Time to reach minimum temp, h: 3 ET 04 Ultra low temperature freezer -85°C for cooling liquid for low temperature tests 130 100 Common specifications: • Acoustic alarm. • Large temperature display. • Digital temperature controller 0,1...