Laboratory

We have a highly experienced in-house transformer oil laboratory, testing in accordance with IEC and ASTM standards.


Our laboratory equipment is of the best quality and is regularly maintained to ensure that results are accurate. In addition, we participate in round-robin proficiency testing to ensure that our tests and their methods are on par with international standards.


With our bespoke on-line data management and reporting system we are able to reduce reporting timeframes. This system is undergoing upgrading and will be implemented in 2017Q2.


We also provide sampling services and on-site testing anywhere you require in Sub-Saharan Africa.


Below is a quick reference to mineral oil tests we offer and the oil sample requirements:


Ref

Test Description

Test Method

Typical Sample Volume Recommended

Typical Sample Container Recommended

1.

Colour

ASTM 1500

500ml

Metal tin

2.

Corrosive sulphur

DIN 51353

1 litre

Metal tin

3.

Density

ISO 3675

500ml

Plastic bottle

4.

Dielectric strength (kV)

IEC 60156

1 litre

Metal tin

5.

Flash point

ASTM D93

500ml

Metal tin

6.

FTIR – Additives present (includes inhibitor and tetralin content)

DIN 51452 / 51453

300ml

Plastic bottle

7.

Furanic analysis, oil

IEC 61198

500ml

Metal tin

8.

Gas, head space (GC)

IEC 60599

1 litre

Metal tin

9.

Inhibitor* (Anti-oxidant content)

IEC 60666

500ml

Metal tin

10.

Interfacial tension

ASTM 971

500ml

Plastic bottle

11.

Moisture in insulating paper

IEC 60814

500ml

Certified glass bottle

12.

Moisture (Karl Fischer)

IEC 60814

500ml

Metal tin

13.

Neutralisation / acidity

IEC 60814

500ml

Metal tin

14.

Oxidation stability, inhibited RBOT

ASTM D2272

500ml

Metal tin

15.

Oxidation stability, uninhibited oil

ASTM D2440

1 litre

Metal tin

16.

Passivator content

NT24

1 litre

Metal tin

17.

PCB analysis (GC)

IEC 61619

20ml

Metal tin

18.

PAH / PCA,% mass

BS 2000

1 litre

Metal tin

19.

Particle count

ASTM D7596

500ml

Certified glass bottle

20.

Pour point

ISO 3016

500ml

Metal tin

21.

Resistivity at 90oC

DIN 51353

500ml

Metal tin

22.

Silicon (RDE)

ASTM D6595

500ml

Plastic bottle

23.

Tan delta at 90oC

DIN51353

500ml

Metal tin

24.

Total acidity

IEC 61125

500ml

Metal tin

25.

Viscosity at -15 oC

DIN 51353

500ml

Metal tin

26.

Viscosity at 40 oC

DIN 51353

500ml

Metal tin