Heat Transfer Oil

No. 

Item

qualitative index

WD-330

WD-350

1

Viscosity (50 Celsius)m2/s

19-25

27-34

GB/T 256

2

Neutralization value mgKOH/g≤(no additive)

0.2

0.2

0.2

GB/T4945

3

flashing point(gap)Celsius

190

200

GB/T267

4

carbon residue%≤ (no additive)

0.03

0.03

SH/T268

5

moisture≤mg/kg

300

300

GB/T260

6

Appearance

canary or maple transparent liquid

visual inspection

7

Pour Point Celsius, ≤

-9

-6

GB/T 3535

8

distillation range5%Celsius, ≤

335

355

GB/T255

9

 consistencyg/cm3(20 Celsius), ≤

0.85-0.89

0.86-0.90

GB/T 1884 GB/T 1885

10

copper corrosion(copper 100 Celsius)≤

level 1

level 1

GB/T5096

Highest using temperature  is 40 Celsius. The time of heat preservation is 52.5 hours Appearance is tranparent. No suspended matter and deposition.

Deterioration rate ≤10%