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The differences between petroleum inspectors and quality 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 $33,197 average annual salary of a quality inspector.
The top three skills for a petroleum inspector include regular communication, API and ladders. The most important skills for a quality inspector are calipers, micrometers, and quality standards.
| Petroleum Inspector | Quality Inspector | |
| Yearly salary | $48,415 | $33,197 |
| Hourly rate | $23.28 | $15.96 |
| Growth rate | -3% | -3% |
| Number of jobs | 17,162 | 70,978 |
| Job satisfaction | 3 | - |
| Most common degree | Bachelor's Degree, 32% | High School Diploma, 37% |
| 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.
A Quality Control Inspector is responsible for making sure that the manufactured products in a particular company or organization are up to standard and adheres to the rules and regulations. They continuously monitor production operations where they manually inspect products, accepting and rejecting those that do not meet the standard quality, and provide recommendations should it be necessary. Moreover, the Quality Control Inspectors coordinates with workers to ensure improvements, and with management to report the results.
Petroleum inspectors and quality inspectors have different pay scales, as shown below.
| Petroleum Inspector | Quality Inspector | |
| Average salary | $48,415 | $33,197 |
| Salary range | Between $29,000 And $78,000 | Between $25,000 And $42,000 |
| Highest paying City | Linden, NJ | Minneapolis, MN |
| Highest paying state | Connecticut | Washington |
| Best paying company | Intertek | Nabors Industries |
| Best paying industry | Technology | Health Care |
There are a few differences between a petroleum inspector and a quality inspector in terms of educational background:
| Petroleum Inspector | Quality Inspector | |
| Most common degree | Bachelor's Degree, 32% | High School Diploma, 37% |
| Most common major | Business | Business |
| Most common college | - | - |
Here are the differences between petroleum inspectors' and quality inspectors' demographics:
| Petroleum Inspector | Quality Inspector | |
| Average age | 45 | 45 |
| Gender ratio | Male, 95.7% Female, 4.3% | Male, 53.5% Female, 46.5% |
| 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, 11.6% Unknown, 4.9% Hispanic or Latino, 16.2% Asian, 8.5% White, 57.8% American Indian and Alaska Native, 1.0% |
| LGBT Percentage | 4% | 4% |