The phrase "as a primary reference" is correct and usable in written English.
It can be used when indicating that something is the main source of information or authority on a particular subject.
Example: "In this research paper, we will use the latest scientific studies as a primary reference to support our findings."
Alternatives: "as a main source" or "as a key reference".
Earth and Fire's idea was to close the rift: to maintain a comprehensive data set that could serve as a primary reference for everyone from the village stoner to the national drug czar.
Iso-octane (C8H18) was used as a primary reference fuel in both the numerical and experimental analysis.
The fuel tested was n-heptane considering the importance as a primary reference fuel for gasoline and its low temperature ignition behavior at relatively low pressure.
As can be seen in Fig. 4, only one study is older that 10 years and it was not ruled out once it is characterized as a primary reference for this SMS.
Over the past 10 years, water calorimetry has been adopted widely by national metrology institutes as a primary reference standard for measuring absorbed dose to water in clinical radiotherapy beams.
This CAP textbook was used as a primary reference.
As of Build 3, we focused on the chicken International Protein Index as a primary annotation reference.
Fairmont Le Château Frontenac, meanwhile, has stood for more than a century as the primary reference in and the architectural signature of Québec City.
We chose as the primary reference an annual incidence above the 95th percentile of annual incidences in all health centre years in our data base, which was 0.4%.
Ignition delay times of four ternary blends of n-heptane/iso-octane/toluene, referred to as Toluene Primary Reference Fuels (TPRFs), have been measured in a high-pressure shock tube and in a rapid compression machine.
Network synchronization in cellular systems is commonly performed in a master-slave manner: BSs synchronize to an external timing reference, known as the primary reference clock, and transfer this timing to UTs.
