Blood samples were spun at 1500rpm because the centrifuge made a scary noise at higher speeds.
Madness string 8583
It took me a long time to come around to the reality of this, the true horror of it all, and how misguided the entire philosophy of its necessity really was. That even the 'good', the 'just', could fail to communicate so completely that all they fall back to is a threat, that if you do not do what they want, bad things will come to you. And that is neither good nor just.