SPI Chem™ Wet Surface Replica Kit
Instructions for Use:
Design of experiments
What is provided as SPI #01090-AB is the kit of the three raw ingredients and this over view
of how the kit can and should be used. Members of the technical staff of Structure Probe,
Inc.'s laboratories have had almost thirty years of experience using this (and predecessor)
systems for the production of replicas from wet surfaces, especially human skin. In order
for a successful project there are two important considerations: First, one must know how to
make the replicas. Good replica making comes with experience and practice. Perhaps even more
important, however, is the protocol for actually doing a project.
For example, if the objective is to follow a patch of dry human skin around the eyes on the
face, as a function of time after application of a "moisturizer", questions that must be
answered would include a) what kind of controls should be used, b) how often should replicas
be made, c) how many subjects should be studied to obtain statistically meaningful results,
plus d) other questions that would be goal specific.
Another type of study might be to study the efficacy of a moisturizing soap and its effect on
dry chapped hands and again, the same kinds of questions must be answered in order that the
right kind of clinical protocol be first established.
The same follows though for one doing wear studies on floor tile, ageing studies on automobile
paint systems, or even toilet bowl cleaners. The making of the replicas is one thing, the
setting up of the optimum protocol is an entirely different issue.
For help and assistance in the establishment of the right protocol, you might want to consider
taking advantage of the many years of experience of the technical staff of Structure Probe.
Have them spend a day with you, let them show you their "art" in the making of negatives
(and positives), and let them hear your technical objectives and then let them rely on their
years of experience to propose the optimum protocol. The charge would be for one day of their
time plus reasonable (e.g. coach) travel from West Chester, PA to the designated location and
return including hotel and other associated travel expenses.
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Sunday September 07, 2008
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