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Clark Testing

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Sample Prep Technician - Coal & Coke Testing

Dupo, IL · On-site

$16 - $20/hr

Job Summary Clark Testing is seeking a Sample Prep Technician for our Dupo, Illinois coal & coke testing facility. In this position, which involves manual labor and working nights and weekends, the ...

Creative Testing Solutions

Performs routine testing of biological samples and notifies appropriate personnel of any identified problems. May assist with processing bio-waste, specimens, and micro-plates. * Maintains accurate ...

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How much do sample testing jobs pay per hour?

As of Aug 24, 2026, the average hourly pay for sample testing in the United States is $26.13, according to ZipRecruiter salary data. Most workers in this role earn between $18.03 and $34.38 per hour, depending on experience, location, and employer.

What is sample testing?

Sample testing is the process of analyzing a portion or subset of a material, product, or data set to assess its quality, characteristics, or compliance with standards. This method is commonly used in industries like manufacturing, pharmaceuticals, and environmental science to ensure that products or materials meet required specifications. By testing samples rather than entire batches, organizations can efficiently monitor quality and make informed decisions. The process typically involves selecting representative samples, performing tests in a controlled environment, and interpreting the results to draw conclusions about the larger group.

What are the key skills and qualifications needed to thrive as a sample testing professional?

To thrive as a Sample Testing professional, you need a solid understanding of laboratory procedures, quality control protocols, and relevant scientific principles, often supported by a degree in chemistry, biology, or a related field. Familiarity with analytical instruments, laboratory information management systems (LIMS), and certifications like ISO 17025 are typically required. Attention to detail, problem-solving ability, and effective communication are crucial soft skills for this role. These skills are essential to ensure accurate results, maintain compliance, and support reliable decision-making in scientific and industrial settings.

What are some common challenges faced by professionals in sample testing and how can they be addressed?

Professionals in Sample Testing often face challenges such as managing tight deadlines while ensuring accuracy, handling a high volume of samples, and maintaining strict adherence to quality and safety protocols. To address these, it's important to develop strong organizational skills, utilize lab management software effectively, and prioritize clear communication with team members. Regular calibration of equipment and continuous training on updated testing procedures also help in minimizing errors and maintaining consistency in results.

What is the difference between Sample Testing vs Quality Control Technician?

AspectSample TestingQuality Control Technician
CertificationsOften requires lab or technical certificationsRequires quality assurance or industry-specific certifications
Work EnvironmentLaboratories, testing facilitiesManufacturing plants, production lines
Primary FocusAnalyzing samples to determine properties or compositionInspecting products/processes to ensure quality standards
Industry UsageCommon in pharmaceuticals, food, materials testingCommon in manufacturing, automotive, electronics

Sample Testing involves analyzing samples to assess their properties, often in labs, while Quality Control Technicians focus on inspecting products during manufacturing to ensure they meet quality standards. Both roles are essential in quality assurance but differ in scope and environment.

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Sample Testing jobs near you
Infographic showing various Sample Testing job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 85% Full Time, 10% Part Time, 3% Contract, and 1% Nights. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $54,344 per year, or $26.1 per hour.

Sample Prep Technician - Coal & Coke Testing

Clark Testing

Dupo, IL • On-site

$16 - $20/hr

Part-time

Re-posted 26 days ago

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Job description

Job Summary

Clark Testing is seeking a Sample Prep Technician for our Dupo, Illinois coal & coke testing facility. In this position, which involves manual labor and working nights and weekends, the Sample Prep Technician collects samples from client sites and ensures all applicable procedures are completed and recorded upon return to the testing facility.

To start, this is a part-time, Non-exempt, hourly position. Full-time employment may be achieved upon successful completion of Clark Testing's 90-day introductory review period at which time the proven candidate’s eligibility for benefits may include medical, dental, vision, life and disability insurance, employee assistance program (EAP), 401(K) plan with discretionary employer match, and paid time off and holidays.

Primary Duties & Responsibilities

  • Pick up and collect 500-pound samples from client sites 3 - 5 times per day.
  • Prep all daily incoming samples per specifications.
  • Log all daily test data into database or spreadsheet.
  • Responsible for making and recording experimental observations.
  • Generate documentation for all tests performed.
  • Communicate timely and accurate analytical information to customers.
  • Follow all SOP's and aid in the review of laboratory procedures.
  • Work both independently and as a member of a team.
  • Assist co-workers in other lab areas when needed and as assigned by management.
  • Satisfactorily perform other duties and tasks as required by management.
  • Participate in functional team activities including safety, housekeeping, quality/process improvement, training, etc.

Qualifications & Competency Requirements

  • High School Diploma or GED is required. Associate Degree in a physical science is a plus.
  • Strong mechanical aptitude is a plus.
  • Good interpersonal skills with a proven ability to work on a team as well as independently.
  • Effective verbal and written communication skills are essential for interacting with co-workers and customers.
  • Committed to producing quality work while always doing so in a safe manner.
  • Must be committed to safe laboratory practices; including the willingness and ability to wear all job-related PPE and company issued uniform.
  • Able to stand for extended periods of time.
  • Able to lift, carry, move, and transport objects of up to at least 50 pounds regularly.
  • Available and willing to work nights, weekends, shift work, and holidays (when needed).
  • Must possess a valid driver’s license with a clean driving record and have reliable transportation.
  • Must be able to pass drug screening and background checks.
  • Must be a US citizen.

Qualified applicants should provide resumes and include salary expectations. We will only contact applicants in whom we have a strong interest. Clark Testing is an Equal Opportunity Employer.

Company Description

Clark Testing is a team of community-oriented people who help make the world safer and healthier through product testing, design validation, and material analysis. Clark operates five distinct laboratories in four states but serves customers throughout the world. We provide services that support a wide array of heavy industries – from Fortune 500 manufacturing companies to futuretech startups, government agencies on every level, university research, and non-government organizations. Come build a career with Clark Testing!

For additional information about Clark Testing, please visit www.clarktesting.com