Direct admission to the Medical Laboratory Science major is based on cumulative high school GPA and ACT or SAT scores. Students must have the following: 3.75 high school GPA. 26 ACT Math or 600 pre-March 2016 SAT Math or 620 post-March 2016 SAT or placement into CHEM 115.
One coin grading service, NGC, works closely with a coin cleaning service, NCS (see details below under NGC). The coin grading and authentication services are also biased toward provenance. If a wealthy, well-known collector once owned the coin, they typically grade it more leniently.
PCGS Grading Standards. 1  In 1948, Dr. William Sheldon, a renowned numismatist, developed the Sheldon Scale, assigning grades from 1 through 70 to coins. The basis of Sheldonâs theory was that a 70 would be worth 70 times as much as a 1.. PCGS built its grading standards upon the Sheldon Scale when it introduced the concept of encapsulated, third-party grading in 1986.