UPDATE: Austest has now had numerous ISTMT client reports accepted by VEET

Austest Laboratories now provides accredited ISTMT reports for VEET applications on luminaires or lamps.

ISTMT is the thermal measure of the LED source chip within the LED luminaire or lamp when installed as per the manufacturers installation instructions. The measurement is performed according to the temperature measurement point (TMP) as indicated by the LED package manufacturer as Tc or Ts.

ISTMT is used as the basis to provide for lifetime interpolation based on TM-21 calculations and should be used in conjunction with the LM-80 test report.

Our In-situ temperature measurement test (ISTMT) report is conducted on one sample using Section 12.4.1 of IEC 60598.1 (or equivalent AS/NZS 60598 Part 2 standard) and is conducted in accordance with Annex A of IES LM-84-14.

Our Reports include LED In-Situ testing information:

Thermal profile of LED less than 10mm
Thermal profile of LED less than 10mm
  • Statement that testing was conducted in accordance with Annex A of IES LM-84-14
  • Manufacturer’s LED chip/package brand and model number
  • LED chip spec and reference if possible to LM-80 report information
  • Photos identifying the product and the exact position of the thermocouple.
  • Driver model number and specification
  • LED chip forward current and system wattage

 

 

More information about the VEET scheme can be found here .

Contact us here for a quote.