K30160 Rust Preventing Characteristics Oil Bath


Test Method
Determines a lubricant’s ability to prevent rusting of metal surfaces. Suitable for steam turbine oils, gear oils, hydraulic oils and other types of inhibited mineral oils. A steel test specimen is immersed in a heated mixture of sample oil and water which is stirred continuously during the test. After the test period the specimen is examined for rusting. The standard (ASTM D665) method uses a vertical specimen; the ‘horizontal disc method’ (ASTM D3603) uses both horizontal and vertical test surfaces.

Features and Benefits
• Conforms to ASTM D665, D3603 and NACE TM-01-72* specifications

• Accommodates six sample beakers

• Microprocessor programmable high accuracy temperature control


K30160 Rust Preventing Characteristics Oil Bath
Constant temperature bath with stirrers for rust preventing characteristics tests. Stirs sample-water mixtures at 1000rpm and controls temperature with 0.5C ( 1F) stability. Immerses test beakers at the proper depth per ASTM specifications.

Microprocessor PID control provides quick temperature stabilization without overshoot, and the bath is protected by an overtemperature control circuit that interrupts power should bath temperature exceed a programmed cut-off point. Dual LED displays provide actual and setpoint temperature values in C/F format. Communications software (RS232, etc.), ramp-to-set and other enhanced features are available as extra cost options. Contact your Koehler representative for information.

Stainless steel stirrer paddles are driven by a ball bearing type motor through an improved pulley drive-roller bearing arrangement. Paddles can be raised and lowered for placement of sample beakers in the bath. Includes test specimens, holders and beaker covers for ASTM D665 or D3603 testing (see specifications and ordering information). Stainless steel bath includes perforated support shelf for beakers and two-position cover plate that adjusts for either ASTM D665 or D3603 testing. Long-lasting polyester drive belt improves reliability. Drive train components are protected by a removable steel guard. All exterior surfaces have stainless steel or chemical resistant polyurethane enamel finishes.

Conforms to the specifications of: ASTM D665, D3603, D6158; NACE TM-01-72*; IP 135; ISO 7120; DIN 51355**, DIN 51585; FTM 791-4011, 791-5315**; NF T 60-151
*To order this equipment for the NACE TM-01-72 test, please see K30160NACE.
**Accessories for these test methods are available upon request.

Testing Capacity: Six (6) 400mL sample beakers

Maximum Temperature: 104C (220F)

Temperature Control Stability: 0.5C (1F)

Drive Motor: 1/12hp induction motor

Bath Medium: 11 gal (41.6L) white technical oil

Included Accessories
ASTM D665 Models (K30160, K30165, K30166)
Steel Test Specimens (6)
Type 2 Plastic Specimen Holders (6)
Plastic Beaker Covers (6)

ASTM D3603 Models (K30161, K30167, K30168)
Horizontal Disc Test Assembly (6) consisting of:
plastic beaker cover
horizontal test specimen
vertical test specimen
fluorocarbon washer
plastic cap
stainless steel support rods and hardware

Electrical Requirements
115V 60Hz, Single Phase, 13.0A
220-240V 50 or 60Hz, Single Phase, 6.8A

Dimensions lxwxh,in.(cm)
32.75x14.25x27 (83x36x69)
Net Weight: 79 lbs (35.8kg)

Shipping Information
Shipping Weight: 150 lbs (68kg)
Dimensions: 16.2 Cu. ft.

Ordering Information



Product Description

Electrical Requirements

For ASTM D665


Rust Preventing Characteristics Oil Bath

115V 60Hz


Rust Preventing Characteristics Oil Bath

220-240V 50Hz


Rust Preventing Characteristics Oil Bath

220-240V 60Hz

For ASTM D3603


Rust Preventing Characteristics Oil Bath

115V 60Hz


Rust Preventing Characteristics Oil Bath

220-240V 50Hz


Rust Preventing Characteristics Oil Bath

220-240V 60Hz

Test Specimens




Product Description


Steel Test Specimen for ASTM D665
Machined to ASTM specifications. Without Holder.


Test Specimen with Type 2 Plastic Holder for ASTM D665


Test Specimen with Type 1 Plastic Holder for ASTM D665


Test Specimen with Type 2 PTFE Holder


Horizontal Test Specimen for ASTM D3603


Vertical Test Specimen for ASTM D3603


Horizontal Disc Rust Test Assembly for ASTM D3603.
Includes polycarbonate beaker cover, two stainless steel support rods, disc carrier and one each horizontal and vertical test specimens.




Product Description


Test Beaker, 400mL
For ASTM D665 & D3603


ASTM 9F Thermometer
Range: 20 to 230F


ASTM 9C Thermometer
Range: –5 to +110C


Chuck for polishing test specimens
Includes locknut and shaft for mounting on accessory drive motor.


Drive Motor
Drives K30130 Chuck. Mounted on base. 115V 50/60Hz


Drive Motor
Similar to K30150 but for operation on 220-240V 50Hz


Aluminum Oxide Cloth, 150-grit.
For preliminary grinding of test specimens. Pack of 50.


Aluminum Oxide Cloth, 240-grit
For final polishing of test specimens. Pack of 50.


Auxiliary Stirrer Blade
Attaches to stirrer shaft for testing heavier than water samples - ASTM D665 Procedure C.


When inquiring about NIST traceable certified thermometers, please refer to the catalog number for the corresponding thermometer and replace the middle three zeros in the catalog number with 004. Example: 251-000-01C ASTM 1C Thermometer would be 251-004-01C ASTM 1C Certified Thermometer.