CSC Scientific Blog

A blog about test equipment

CSC Scientific Blog

Who Beats Up Your Bostwick?

Posted by Art Gatenby on Nov 16, 2011 12:11:00 PM

Sometimes we encounter a product that is so simple and rugged that it would be tempting to deem it indestructible. Consider a stainless steel trough with a gate and etched numbers on the bottom. Seems simple and the stainless would make it tough, right? That is not the case, but it has survived nearly unchanged for more than 85 years.

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Topics: Bostwick Consistometer, Consistency

Is Sieve Calibration Really the Holy Grail? -- Part I: Certification

Posted by Art Gatenby on Nov 7, 2011 3:13:00 PM

Sieve calibration is the final step in determining whether processes yield suitable end results. In other words:
  • Is your concrete going to be strong enough?
  • Will you chocolates taste right?

  • Will your washing powder flow and dissolve as advertised?

  • Is there dangerous residue in your pill stock?

  • Will the “frack sand” keep the fractures open?

  • Is my salt of the correct grade?

If these are not correct, serious consequences could result (e.g. spoiled product, returned batches, rework or scrap).

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Topics: Calibration, Particle Size Analysis, Sieve Calibration, Sieve Certification, Sieve Testing, Sieves, Sieving Process

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