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TST-300 Congo Red Thermal Stability Tester

TST-300 Congo Red Thermal Stability Tester is used to determine the thermal stability of PVC compounds for insulating and sheathing materials of electric cables.
  • TST-300

  • Anytester

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Product Description

TST-300 Congo Red Thermal Stability Tester is used to determine the thermal stability of PVC compounds for insulating and sheathing materials of electric cables.

Test principle:

Place about (50±5)mg sample into a specified glass tube. The glass tube is placed into oil bath at the temperature of (200±0.5)℃. A Congo red paper or common PH paper is inserted into the glass tube; its other end is folded and hung on the top wall of glass tube. Record the time during the Congo red paper becomes from red to blue (the common PH paper becomes from PH5 to PH3). The time of color change is expression of the thermal stability.


Standards

GB/T 8815

GB/T 2951.7

IEC 811


Technical Specification

Model

TST-3000

Temperature range 

RT~250℃

Temperature resolution

0.1℃

Timer range

0~99.99s

Chamber capacity

3000ml

Glass tube size

Length: 1100mm

External diameter: 5mm

Inner diameter: 4mm

Test paper

Congo red paper or PH paper

 Heating oil required

2# lubricating oil or   insulating oil

Heater power

1.25kW

Power supply

AC220V 50Hz

Dimensions

420mm×200mm×250mm   (L×W×H)


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