Block Oven
Aging Check
Thermal regulated Block for the performance of ageing tests in air and in liquids of elastomeric materials at temperatures up to 250°C
Standards the instrument complies with:
ASTM D471; ASTM D543; ASTM D865; ASTM D1056; AS_NZS 4179; EN 681-1; ISO 175; ISO 188; ISO 1817; ISO 12046; ISO 6916-1; ISO 6916-2; VDA 675-301;
ASTM D471; ASTM D543; ASTM D865; ASTM D1056; AS_NZS 4179; EN 681-1; ISO 175; ISO 188; ISO 1817; ISO 12046; ISO 6916-1; ISO 6916-2; VDA 675-301;
The Gibitre Thermoregulated Block accelerates aging of elastomeric materials in air or liquids up to 250 °C, enabling laboratory measurement to ISO 188, ISO 1817, ASTM D865 and ASTM D471.
Four independent stations allow parallel testing of different materials, reducing cycle time and enabling direct comparison.
Temperature is regulated by a PT100 probe with PID control, integrated timer and automatic heater shutoff for stable, repeatable aging.
A thermally insulated stainless-steel housing and an aluminum block with calibrated wells for glass tubes, plus an over-temperature safety switch, ensure safety and long-term reliability.
An external rack simplifies sample preparation and handling; accessories include 38 mm × 300 mm glass test tubes and water-cooled reflux condensers for liquid aging.
CE-marked, the Gibitre Thermoregulated Block is a robust addition to laboratory testing tools for elastomer measurement, delivering consistent, standards-compliant results.
Overview
Thermal regulated Block for the performance of aging tests in air and in liquids of elastomeric materials at temperatures up to 250°C conforming to ISO 188, 1817 ASTM D 471 and 865 Standards.
Aging tests are typically carried out to measure the variation of characteristics of an article before and after the aging process. The characteristics that are most frequently measured before and after aging are:
• Variation of mechanical characteristics (loading, lengthening, tearing)
• Variation of hardness
• Percentage variation of mass and volume.
Gibitre, in addition to providing this tool to perform accelerated aging in air or in liquid, also provides the tools to measure changes in the properties of the article and to produce the related reports.
Instruments Characteristics
The instrument is fitted with:
• Aluminium block contained in a stainless steel housing with thermal insulation with 4 calibrated holes designed for the insertion of 4 glass test tubes
• Heating resistance
• PT 100 thermal probe for temperature measurement
• PID thermoregulator
• Timer for the set of the heating time with automatic switch off of the heater at the end of the set time
Timer for Auto-Stop
The instrument is equipped with a timer that can be set between 0 and 99 hours and 59 minutes. The instrument automatically stops at the end of the set test time.
The Timer allows you to activate aging cycles by ending the test automatically in the absence of the operator.
Glass Tubes for samples.
4 glass tubes with a diameter of 38 mm and a length of 300 mm can be inserted into the instrument.
The specimens can be inserted into the glass tubes and locked using the fasteners provided.
Fixing devices allow the specimens to be placed in order to avoid contact with the glass tube walls.
Glass Tubes for test according to ASTM D865
The glass tubes are closed in the upper part with PTFE plugs provided with holes for the insertion of the glass pipes requested for the aging test in hot air according to ASTM D865
Water-cooled reflux condenser
For aging tests in volatile liquids it is necessary to use condensation columns connected to a water supply. The condensation columns allow to condense the volatile part of the test liquid and make it fall back into the tube. In this way, the amount and formulation of the liquid in the glasses will remain unchanged.
A condensation column can be applied to each test tube.
Removable Side Supports
Together with the instrument are supplied two side supports for housing the glass tubes not in use. The supports can be removed to reduce the overall dimensions of the instrument.
Safety Devices
• Safety switch to prevent overheating
• Safety Push-button
• CE Labelling
Standard Calibration service for a Block Oven
The calibration is performed with reference to the requirements of ISO 1817 standard.
The service includes:
• Ordinary maintenance of the instrument
• Calibration of the temperature inside the testing tubes (at 70°C, 150°C, 200°C, 250°C).
• Issue and e-mail shipment of the Calibration Certificate with traceability to primary standards.
Development and production
The instrument is totally developed and produced in the plant of Gibitre Instruments in Italy.
All the mechanical parts are produced in the company workshop using modern CNC machines.
Components and sensors from well-known brands are selected in order to ensure the maximum reliability in the measures
Internal trained personnel takes care of all the production stages: assembly, start-up, calibration, packing, shipment and installation.
Testing Configuration
Test stations
4 glass tubes with a diameter of 38 mm and a length of 300 mm. Each tube can hold up to 6 samples (ISO 37 S2 type).
Condensation Columns
A condensation column cooled with running water can be applied to each test tube to prevent evaporation of the test liquid.
Heating system
The thermal resistance surrounding the round-shaped aluminium block ensures uniform heating of the system
Temperature control range
From room temperature to 250°C (Resolution 1 °C)
Timer for set of test time
Timer with hour and minute settings and automatic heating shut-off at the end of the set time. Set time: from 1 min to 700,000 h
Safety Devices
Safety devices
Safety Pushbutton.
safety thermostat for over-heating
safety thermostat for over-heating
Labelling
CE Labelling
Calibration
Calibration
Calibration Report conforming to ISO 1817 with traceability to primary standards
Technical specifications
Power supply
220 VAC ±10%, 50 Hz ±3, 10A, single phase - 110 VAC ±10%, 60 Hz ±3 on request.
Electrical power
1.5 kW
Dimensions
Instrument only: 400 x 420 x 360 mm
With test tubes holders: 490 x 420 x 360 mm
And with reflux condenser mounted: 490 x 420 x 860 mm
With test tubes holders: 490 x 420 x 360 mm
And with reflux condenser mounted: 490 x 420 x 860 mm
Weight
24 Kg
Gibitre Instruments
Via dell'industria, 18
Bergamo (Italy)
te. +39 035 461146
www.gibitre.it
info@gibitre.it
Copyright Gibitre Instruments
