Story
Artisan Alchemist Stekora asked you to craft the Novice Alchemist's Scale, saying your skill needs testing. It wouldn't hurt to pass the artisan's test, even though he's got an attitude issue.
After completion (spoilers)
"Luck is also a skill." Successfully crafted the Novice Alchemist's Scale as tasked by Stekora. He wasn't happy, but reluctantly approved you for the test. Upgraded to Professional Alchemist by passing the test.