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The differences between petroleum inspectors and quality control inspectors can be seen in a few details. Each job has different responsibilities and duties. Additionally, a petroleum inspector has an average salary of $48,415, which is higher than the $35,018 average annual salary of a quality control inspector.
The top three skills for a petroleum inspector include regular communication, API and ladders. The most important skills for a quality control inspector are calipers, magnetic particle, and quality products.
| Petroleum Inspector | Quality Control Inspector | |
| Yearly salary | $48,415 | $35,018 |
| Hourly rate | $23.28 | $16.84 |
| Growth rate | -3% | -3% |
| Number of jobs | 17,162 | 92,794 |
| Job satisfaction | 3 | 4.5 |
| Most common degree | Bachelor's Degree, 32% | High School Diploma, 36% |
| Average age | 45 | 45 |
| Years of experience | - | - |
Petroleum Inspectors are responsible for examining petroleum shipments to ensure they meet contract specifications. Their duties include examining samples during petroleum tank transfer for water or discoloration, withdrawing samples from the petroleum tank, and conducting laboratory analysis on bottled, stored samples. They also use calibration tables to quantify consignments and sounding shore tanks using steel tape. Petroleum inspectors may conduct calibration on meters and tanks. Petroleum inspectors ensure that shipments passing through adhere to performance and safety regulations.
Quality control associate scientist roles require good observation, critical thinking, and communication skills, in addition to knowledge of procedures and chemistry. They assist in laboratory experiments and research, while working in a team or independently. Working with the lead scientist, associates may compile reports of their data findings.
Petroleum inspectors and quality control inspectors have different pay scales, as shown below.
| Petroleum Inspector | Quality Control Inspector | |
| Average salary | $48,415 | $35,018 |
| Salary range | Between $29,000 And $78,000 | Between $25,000 And $47,000 |
| Highest paying City | Linden, NJ | Broomfield, CO |
| Highest paying state | Connecticut | Washington |
| Best paying company | Intertek | Los Alamos National Laboratory |
| Best paying industry | Technology | Automotive |
There are a few differences between a petroleum inspector and a quality control inspector in terms of educational background:
| Petroleum Inspector | Quality Control Inspector | |
| Most common degree | Bachelor's Degree, 32% | High School Diploma, 36% |
| Most common major | Business | Business |
| Most common college | - | - |
Here are the differences between petroleum inspectors' and quality control inspectors' demographics:
| Petroleum Inspector | Quality Control Inspector | |
| Average age | 45 | 45 |
| Gender ratio | Male, 95.7% Female, 4.3% | Male, 59.2% Female, 40.8% |
| Race ratio | Black or African American, 13.6% Unknown, 4.2% Hispanic or Latino, 24.0% Asian, 7.7% White, 49.6% American Indian and Alaska Native, 0.7% | Black or African American, 10.9% Unknown, 4.4% Hispanic or Latino, 20.9% Asian, 8.6% White, 54.5% American Indian and Alaska Native, 0.8% |
| LGBT Percentage | 4% | 4% |