
The purpose of the General Lubrication Concepts (GLC) certification is to support operational team members in acquiring lubrication and oil sampling/analysis knowledge. Non-technical team members and business leaders may not have an adequate understanding of lubrication practices and related lubricant products. ICML recognizes the value of lubrication and lubricant knowledge for team members -from C-suite executives and middle management to administrative support across functions such as Sales, Marketing, Business Development, Manufacturing Planning, Procurement, Supply Chain (Storage and Distribution), and Accounting/Finance. Formalized training provides valuable perspective and supports understanding of the GLC concepts.
The GLC certification examination assesses and validates knowledge and understanding of:
- General lubrication theories as well as related maintenance strategies
- Lubricants of various types, including the proper selection of lubricants highlighting considerations associated with base oils, the use of additives and their respective application to optimized lubrication
- Lubricant application technique best practices, as well as failure related risks/consequences
- Lubricant sampling and analysis including sampling program development, sampling execution, and various test results interpretation available to support effective lubricant condition-monitoring
- Contamination of lubricants - where and how lubricants can be contaminated and how lubricant contamination affects machines
- Means for controlling and reducing contamination levels and the profound impacts failure to act can have on machine reliability
- Proper storage and handling of lubricants to minimize environmental, health and safety risks in addition to limiting waste and expiry issues based on poor inventory management
Common job titles of individuals pursuing the GLC certification may include: President, Vice-president, General Manager, Manager, Supervisor, Buyer/Purchaser, Inventory Planner, Business Development Manager, Sales Manager, Sales Representative, Marketing Manager, Marketing Analyst, Financial Analyst, Accountant, Bookkeeper, Accounting Clerk, Warehouse Manager, Warehouseman, Logistics Analyst, Learning Support Specialists, etc.
While these individuals may not have regular contact with machinery, they actively participate in supporting maintenance and reliability value-chain elements to include the selection, purchase, storage and condition-monitoring of lubricants and machinery. These individuals are likely to be serving in non-technical roles supporting a production environment. The GLC certified individual is better positioned to support maintenance and reliability best practices across their organization.
Frequently Asked Questions
- How many questions are on the examination? The GLC exam has 70 multiple choice questions
- How long do I have to complete the examination?
You have two (2) hours to complete the exam
- What score is required to pass the examination?
70% correct answers
To become certified, an interested individual must meet the following requirements:
- Education and/or Experience - There is no specific requirement for on-the-job experience. Candidates should exercise their judgment, along with input from instructors and/or employment supervisors, as they assess their proficiency and competence with respect to the GLC Body of Knowledge from an educational and experiential point of view.
- Training - Candidate must have received a minimum of five (5) hours of documented formal training as outlined in the Body of Knowledge of the GLC. Online or recorded training, exercises, practice exams, and review exercises may be included in the training but shall not exceed one hour of the required course time. Candidate shall be able to provide a record of this training to ICML that shall include the candidate’s name, the name and signature of the instructor, the dates of the training, and the number of hours spent in the training.
Note: ICML does not require, recommend, endorse or authorize any specific training course as official or approved. It is the responsibility of each candidate to research the training options available in his/her area and make a decision as to the training provider of his/her choice. ICML recommends the outline of any course of study be compared to the GLC Body of Knowledge. It is in the person's best interest and their responsibility as an ICML candidate to ensure they are being trained in the same subject areas in which they will be tested. It is also the candidate’s responsibility to ensure each instructor is currently certified at the level of instruction. (Candidates can do this by checking for an instructor’s name in our real-time directory of certified professionals.) ICML's GLC Body of Knowledge is of public domain and can be utilized by companies in the development of courses, as well as by any prospective candidate for evaluating the appropriateness of chosen training.
- Examination - Each candidate must successfully pass a 70-question multiple-choice examination that evaluates the candidate's knowledge of the topic. Candidates have two (2) hours to complete the closed-book examination. A score of 70% is required to pass the examination and achieve certification.
The GLC Body of Knowledge is an outline of concepts that one should have in order to pass the certification examination. References from which exam questions were derived can be found in the Domain of Knowledge.
- Lubrication Theory (24%)
- Why machines need lubrication
- What mechanical equipment need lubrication
- Lubrication regimes
- Hydrodynamic, Elastohydrodynamic, Boundary, Mixed
- Understand principal functions of lubricants
- Reduce friction, limit wear, dissipate heat, seal against ingress of contaminants, carry away debris, prevent rust and corrosion, transmit power
- Lubricant properties
- Considerations in choosing lubricants
- Maintenance Protocols
- Condition-based monitoring
- Run-to-failure, proactive, Predictive, etc.
- Lubricant Properties
- Viscosity, pour point, flash point, etc.
- Industry terms, definitions
- Lubricants & Lubricant Selection (34%)
- Viscosity
- What viscosity means
- Speed, load, and temperature considerations to viscosity
- Lubricant Types
- Oils - liquid lubricants
- Base Oils
- Mineral vs Synthetic
- Additives and their functions
- Greases - semi-solid lubricants
- Grease composition, properties, and applications
- Solid lubricants
- Lubricant Selection
- Oil v. Grease v. Solid
- Specific Lubricant Requirements
- Health, Safety & Environmental considerations for lubricants
- Lubricant Applications (6%)
- Lubricant Dispensing and Application Methods
- Relubrication and lubricant change out time interval determination
- Lubricant Sampling/Analysis (10%)
- Oil Sampling
- Sampling techniques, processes and tools
- Oil Analysis
- Lubricant testing
- Lubricant Condition Monitoring (16%)
- Basics of Contamination Control
- Contamination risks and impacts to machinery
- Preventing/removing contamination
- Ingression, filtration
- Major Contaminants
- Particles, water, air, chemicals, wear debris, etc.
- Cross-contamination
- Lubricant Storage Best Practices (10%)
- Lubricant storage
- Lubricant transportation and handling
- Tools and Techniques for Transportation
- To facility and on facility floor/to machinery
- Cross-contamination risk mitigation
- Lubricant identification systems
The GLC Certification is valid for three (3) years from the date of issue. Individuals certified in General Lubrication Concepts (GLC) must recertify every three years to demonstrate continued competency. The purpose of recertification is to ensure that certified individuals maintain current and up-to-date skills.
Recertification is achieved through a points-based system. To recertify by points, individuals must accumulate 10 recertification points during the three-year certification period and submit a completed recertification application to ICML. Points may be earned according to the following criteria:
| Category | Points | Maximum | Documentation |
|---|
| Conference Attendance | 1 point per conference day | 4 points | Proof of attendance (certificate, badge or letter from conference organizer in its letterhead) and copy of program |
| Employment | 3 points per year | 9 points | Letter from employer, in company letterhead, with title of signer shown |
| Publication or Presentation | 2 points per work | 4 points | Copy of publication, table of contents of the book, proceedings, magazine or journal in which it was published. May be a co-author Proof of conference presentation |
| Training or Workshop | 1 point per day | 4 points | Proof of attendance (certificate or letter from training company in its letterhead) and a copy of the course outline |
Criteria of Acceptability
- Conference Attendance: Topics related to oil analysis, lubrication or other topics important to effective equipment maintenance and management.
- Employment: Employment must be in a role supporting industrial lubrication and/or oil analysis.
- Publication or Presentation: Publications (articles, journals, magazines, books, proceeding, etc.) and presentations about a topic within the body of knowledge for oil analysis, lubrication or equipment maintenance or management. May be a co-author. Presentation may be related to a functional discipline support capacity related to maintenance and reliability tasks.
- Training or Workshop: Topics related to oil analysis, lubrication or other topics important to effective equipment maintenance and management.
All points must be earned while the GLC Certification is in effect. Points earned before or after the certification period will not be accepted. Points may be applied to multiple ICML certifications held by the individual, assuming that the points are applicable and approved for each individual recertification.
If a candidate’s only source of recertification points is employment, up to 2 additional points may be earned by participating in any of these employment-related best practices activities, according to the criteria below:
- Documented participation on cross-functional teams related to lubrication program development and execution. May include business development, marketing, sales and administrative tasks.
- Development support of lubricant-related work management systems, purchasing or the like
- Lubricant program auditing task (supply chain, financial, etc.) support.
Apply for RecertificationPrices shown here apply to both in-person and online exams. Special temporary pricing may apply in select countries to accommodate specific socio-economic conditions.
Note: Certification fees are the same for either online or in-person formats.
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