Testo 882 , 33 Hz thermography camera, -20 to +350 °C, 320 x 240 pix bolometer matrix 0560 0882 Manuale Utente

6 Using the product 

 

 

29 

 

Aluminium, bright rolled (170 °C) 

0.04 

Cotton (20 °C) 

0.77 

Concrete (25 °C) 

0.93 

Ice, smooth (0 °C) 

0.97 

Iron, emery ground (20 °C) 

0.24 

Iron with casting skin (100 °C) 

0.80 

Iron with rolling skin (20 °C) 

0.77 

Gypsum (20 °C) 

0.90 

Glass (90 °C) 

0.94 

Rubber, hard (23 °C) 

0.94 

Rubber, soft grey (23 °C) 

0.89 

Wood (70 °C) 

0.94 

Cork (20 ) 

0.70 

Radiator, black anodised (50 °C) 

0.98 

Copper, slightly tarnished (20 °C) 

0.04 

Copper, oxidized (130°C) 

0.76 

Plastics: PE, PP, PVC (20 °C) 

0.94 

Brass, oxidized (200°C) 

0.61 

Paper (20 °C) 

0.97 

Porcelain (20 °C) 

0.92 

Black paint, matt (80 °C) 

0.97 

Steel, heat-treated surface (200 °C) 

0.52 

Steel, oxidized (200 ) 

0.79 

Clay, burnt (70 °C) 

0.91 

Transformer paint (70 °C) 

0.94 

Brick, mortar, plaster (20 °C)  

0.93 

 

Reflected temperature 
Using this offset factor, the reflection is calculated out due to the 
low emissivity and the accuracy of the temperature measurement 
with infrared instruments is improved. In most cases, the reflected 
temperature is identical to the ambient air temperature. Only when 
objects with strong emissions with much higher temperatures (such