Six. The meaning of PPM in Advertising: "Pre-production meeting", that is, before filming. A meeting of people talking about plans and shooting plans for an ad before it is filmed. Seven, temperature coefficient The degree of resistance change of a resistor at a temperature change ...
Coulometric titrators count in micrograms…. 1ul is equivalent to 1000 micrograms… An “in-specification” result is within 2 %, meaning, 980-1020 micrograms from a 1ul injection verifies the reagent and coulometer are working within specification…. All of this withou...