Specific Gravity
Specific Gravity is a basic measurement used in precious metal trading to help identify and verify different metals and materials. It's like a fingerprint that shows how heavy something is compared to water. This measurement is particularly important because it helps traders and buyers verify if metals are genuine, since each precious metal has its own unique specific gravity value. For example, gold has a different specific gravity than silver or platinum, making this measurement a useful tool for basic authentication in the precious metals industry.
Examples in Resumes
Performed Specific Gravity tests to authenticate precious metal specimens
Trained junior staff in Specific Gravity measurement techniques for metal verification
Developed standard operating procedures for Specific Gravity testing in precious metal authentication
Typical job title: "Precious Metal Analysts"
Also try searching for:
Where to Find Precious Metal Analysts
Professional Organizations
Online Communities
Job Resources
Example Interview Questions
Senior Level Questions
Q: How would you set up a specific gravity testing program for a large precious metals trading operation?
Expected Answer: A senior analyst should discuss establishing testing protocols, quality control measures, staff training programs, and how to integrate testing into the overall authentication process. They should also mention equipment maintenance and calibration procedures.
Q: What are the limitations of specific gravity testing in precious metal authentication?
Expected Answer: Should explain that while specific gravity is a useful initial test, it shouldn't be the only method used. Should discuss the need for multiple testing methods and when to use more advanced authentication techniques.
Mid Level Questions
Q: What are the common sources of error in specific gravity measurements?
Expected Answer: Should discuss factors like air bubbles, temperature variations, scale calibration, and proper measurement techniques. Should also mention how to minimize these errors.
Q: How do you handle a situation where specific gravity results are inconclusive?
Expected Answer: Should explain the process of retesting, using alternative methods, and when to escalate to more advanced testing procedures.
Junior Level Questions
Q: Can you explain how to perform a basic specific gravity test?
Expected Answer: Should be able to describe the basic steps of weighing in air, weighing in water, and calculating the specific gravity. Should mention safety procedures and basic equipment care.
Q: What are the specific gravity values for common precious metals?
Expected Answer: Should know the approximate specific gravity values for gold, silver, and platinum, and understand why these values are important for basic authentication.
Experience Level Indicators
Junior (0-2 years)
- Basic specific gravity testing procedures
- Understanding of precious metal characteristics
- Basic equipment operation
- Record keeping and documentation
Mid (2-5 years)
- Advanced testing techniques
- Quality control procedures
- Problem-solving in testing irregularities
- Equipment maintenance and calibration
Senior (5+ years)
- Testing program development
- Staff training and supervision
- Advanced authentication methods
- Quality assurance system implementation
Red Flags to Watch For
- No hands-on experience with specific gravity testing
- Lack of understanding of basic precious metal properties
- Poor attention to detail in measurements
- No knowledge of proper testing documentation procedures
Related Terms
Need more hiring wisdom? Check these out...
Why Your Hiring Spreadsheets Are Secretly Sabotaging Your Recruitment
The Magnetic Pull of Social Proof: How to Make Candidates Flock to Your Company
Workforce Solutions Aggregators: The Next Big Thing You Didn't Know You Needed
