What is a COQ (Certificate of quality)or COA that is issued from the - ProProfs Discuss
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What is a COQ (Certificate of quality) or COA that is issued from the refinery for each batch of fuel? Why is it an intergral part of your job to know what it is and how to read it?




This question is part of Fuels Quality Manager Knowledge Test
Asked by Tracepetro, Last updated: Oct 15, 2020

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Ken Wilson

Ken Wilson

Want to learn new things and share my knowledge

Ken Wilson
Ken Wilson, Marketing Analyst, MBA, Miami

Answered May 23, 2019

The Certificate of Quality is the final stage or validation of the fuel being produced for sale or distribution. The quality control manager of a fuel production site must be responsible for the development, maintenance and improvement processes and initiatives regarding the quality of output.

The manager may and probably should take samples from dispensers/fillers, as well as conducting a visual check of fuel samples. He must test the membrane filtration and measure the pressure on filter vessels. Renewable fuels from non-fossil sources have many advantages. For a start, they are more eco-friendly, producing fewer greenhouse gases.

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