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OLMA Laboratory

High Quality Standards

One of the most modern chemo-rheological laboratories in Central and Eastern

Europe isl ocated in the heart of Ljubljana,the capital of Slovenia. It was built in 2017 as a part of the only Slovenian production factory of industrial oils and greases, operating for over 70 years.This combines decades of tradition and experience with the latest state-of-the-art instruments and technology. The laboratory carries out daily quality control of the in-house production, customer service and commercial analyses for the third-party businesses. Highest quality and utmost precision are guaranteed by being VDA, ISO 9001:2015 and ISO 14001:2015 certified. Therefore, we carry out daily ISO and VDA standardised AdBlue® analyses, ACEA and SAE approved motor oils analyses, DIN and ISO certified hydraulic fluids analyses, ISO and SAE approved gear transmission fluids analyses...The complete list of our commercially available analyses and short presentations of our newest and rarest instruments, which can not be found in many laboratories across Europe,may be found below.

1 Apparent viscosity at high temperature and high shear rate

This is our newest and most precise Tapered Bearing Simulator Viscometer by King Tannas, which determines apparent viscosity at a

high temperature and high shearrate (150°C, 100

°C, 80°C) according to the motor oil standards SAE J300: ASTM D4683, ASTM D6616, CEC L-36-A90, IP 370. It may also be used to determine viscosity of hydraulic fluids, transmission and gear fluids, printing inks...

2 Apparent viscosity and yield stress at low temperatures

The latest King Tannas Mini Rotor Viscometer automatically determines apparent viscosity and yield stress at low temperatures (O°C to-40°C) according to the motor oil standards SAE J300: ASTM D3829, ASTM D4684, ASTM D6821. Alternatively, we are able to adjust the procedure of cooling for other fluids as per your request.

3 Dynamic viscosity at low temperatures (Brookfield viscosimeter)

Visco QCTM 300 Anton Paar is our newest Brookfield viscosimeter to determine the dynamic viscosity of non­Newtonian fluids at low temperatures. Standard determines the parameters for gear oils,although we can measure the viscosity of any fluid in the temperature range of 20°C to -70°C. The instrument supports standards: ASTM D2983, ISO 2555, ASTM D1084, ASTM D1824, ASTM D2196,...

4 Four-ball method

Determination of the weld point occurs at certain pressure within 10 seconds. Then upper steel ball rotates under the pressure on the lower 3, which are fixed in the lubricant. The result is given in kg at which the 4 balls welded together.The Load-Wear Index is determined by the size of wear on the bottom 3 balls. The pressure, time and temperature are adjusted according to the specific environment in which the lubricant is used.The instrument is designed to work according to the ASTM D2596 and D2266 with a pressure of 7kg to 1.200kg and between24°C and 100°C.

5 Cooling characteristics of quenching oils

A probe with an internal thermometer, preheated to 850°C, is inserted into a quenching oil sample, which may also be preheated and, if required, stirred during the test. This

direct method according to ISO 9950 gives a report as a cooling curve diagram, from which the cooling time and the cooling speed may be read and calculated.

6 Level of oil contamination by solid particles

Code defining the quantity and the size of solid particles in a hydraulic fluid is obtained by an Automatic Optical Particle Counter. The counter has a source of white light aiming, through a running sample, atareader. The reader detects changes in intensity and transforms them into information about the size and number of solid parts. The results are reported according to ISO 4406, NAS 1638 and SAE AS 4059.


In our modern and certified laboratory, we offer Analyses Packages for fresh and used motor oils, gearoils, hydraulic fluids, quenching fluids, AdBlue®, coolants, emulsions...

A comprehensive list of the analyses we offer may be found below, whereas the pricelist of the Analyses Packages and single analyses is available upon request.


Apparent Viscosity - Cold - Cranking Simulator ASTM D5293
Apparent Viscosity and Yield Stress - MRV ASTM D4684
Apparent Viscosity at High Temperature and High Shear Rate ASTM D4683
Chloride Determination EPA 629
COD Cell Test EPA 410
Colour ASTM D1500
Concentration of Emulsions, Determination with Refractometer DN 25 (internal)
Cone Penetration ASTM D217
Cooling Characteristics of Quenching Oils ISO 9950
Copper Corrosion ASTM D130
Corrosion of Cast Iron Chips DIN 51360/2
Density at Temperature (15 - 100°C) ASTM D7042
Determination of Water by Distillation ASTM D95
Determination of Water by Karl Fischer ISO 12937
Dynamic Viscosity at Low Tempertures - Brookfiled Viscosimeter ASTM D2983
Evaporation Loss by Thermogravimetric Analyzer ASTM D6375
Flash Point by Cleveland Open Coup ASTM D92
Flash Point by Pensky - Martens Closed Cup Tester ASTM D93
Foaming Test (24 - 94°C) ASTM D892
Freezing Point of Aqueous Engine Coolants ASTM D1177
Infrared Spectrophometer Analysis DN 65 (internal)
i - pH Value ASTM D7946
Kinematic Viscosity at Temperature (15 - 100°C) ASTM D7042
Level of Oil Contamination by Solid Particles ISO 4406, NAS 1638, SAE AS4059
Load Wear Index ASTM D2266
pH Determination ASTM D1287
Pour Point ASTM D97
Presence of Bacteria, Moulds and Fungi DN 22 (internal)
Reserve Alkalinity ASTM D1121
Resistance to Humidity ISO 6270
Saponification Number ASTM D94
Standard AdBlue Analyses ISO 22241-2
Sulpohanted Ash ASTM D874
Total Acid Number ASTM D664
Total Base Number ISO 3771
Viscosity Index  ASTM D2270
Water Hardness Deteermination M405-2009
Water Separability ASTM D1401
Weld Point ASTM D2596
X-ray Analysis DN 55 (internal)

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ISO 9001 ISO 14001 VDA QMC ISO 9001 Bureau Veritas EELQMS