< b > RESPONSE < / b > < br > < br > Vulcan blood is presumed to be green in color , the explanation for this ( first definitely advanced in the installment  Obsession ,  from the original program ) being that the oxiferous ( oxygen-carrying ) protein < i > < b > hemoglobin , < / b > < / i > in Vulcan blood cells , is chemically based on the ...
View my complete profile. A secondary standard is a substance which may be used for standardizations, and whose content of the active substance has been found by comparison against a primary standard.iew my complete profile. A secondary standard is a substance which may be used for standardizations, and whose content of the active substance has been found by comparison against a primary standard.
A primary standard is a reference chemical used to measure an unknown concentration of another known chemical. It can be used directly when performing titrations or used to calibrate standard solutions. Primary standards exhibit distinctive characteristics that ideally suit them for making accurate and reliable assessments of concentration without the need for specialized equipment.