Forensics C

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QuantumTech
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Re: Forensics C

Post by QuantumTech »

Does anybody know where to obtain polymers for practice burn tests (ideally at a national store or popular in California)? If all else fails I guess I will have to buy one of those expensive Forensics Kits from Ward's Science. :(
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Re: Forensics C

Post by QuantumTech »

QuantumTech wrote:Does anybody know where to obtain polymers for practice burn tests (ideally at a national store or popular in California)? If all else fails I guess I will have to buy one of those expensive Forensics Kits from Ward's Science. :(
Edit: I mean the FIbers portion of the polymers.
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Re: Forensics C

Post by Panda Weasley »

QuantumTech wrote:
QuantumTech wrote:Does anybody know where to obtain polymers for practice burn tests (ideally at a national store or popular in California)? If all else fails I guess I will have to buy one of those expensive Forensics Kits from Ward's Science. :(
Edit: I mean the FIbers portion of the polymers.
You don't need super high quality samples of the fibers. If you go to a craft store that sells fabric you will probably be able to find samples of what you need. If you get a small enough sample they will probably give it to you for free. Just make sure they aren't mixtures. If there is something they don't have a sample of you could also try a thrift store or normal clothing store.
I hope this helps!

EDIT: I just did a quick search on Joann's website and found fabric samples for all of the fibers except linen. It also doesn't have to be a fabric sample, it's just what I thought of. Yarn/string should work as well.
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Re: Forensics C

Post by amp 3914 »

Is there a limit to the amount of notes that you can have for Forensics?
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Re: Forensics C

Post by samlan16 »

amp 3914 wrote:Is there a limit to the amount of notes that you can have for Forensics?
According to rule 2.a.xv, you may bring a binder of any size filled with anything as long as the materials are secured to the rings.
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Re: Forensics C

Post by inwhite »

SciOly15 wrote:I have a polymer flowchart, but the problem is that it doesn't differentiate between PC and PMMA, and PETE and PVC. Do you guys have any ways you differentiate between those two pairs?
I believe they all have slightly different densities, but if you're pressed for time, judge by appearance, details of the crime, and any burn tests given to you.

PC: Clear. Used in eye protection, as well as in other projectile-resistant viewing and lighting applications that would normally indicate the use of glass, but require much higher impact-resistance.
PMMA: Clear. Used in aquariums, intraocular lenses, acrylic paint, dentures, and more.
PETE: Typically clear, perhaps with green or blue tint. Common in drinking bottles. Resin ID code of 1.
PVC: Typically opaque white with a slight yellowish tint. I'd describe it as eggshell, almost. Resin ID code of 3. Gives off hydrogen chloride gas when burned. Common in plumbing.

Hope that helps!

Edit: Weird formatting :cry:
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Re: Forensics C

Post by Magikarpmaster629 »

On the rules it says teams can bring "flame test equipment" including "nichrome wire, cobalt blue glass, etc." Can we legally bring and use wooden splints as flame test equipment?
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Re: Forensics C

Post by samlan16 »

Magikarpmaster629 wrote:On the rules it says teams can bring "flame test equipment" including "nichrome wire, cobalt blue glass, etc." Can we legally bring and use wooden splints as flame test equipment?
Technically yes, but it's kind of dangerous and may get you penalized.
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Re: Forensics C

Post by amp 3914 »

samlan16 wrote:
amp 3914 wrote:Is there a limit to the amount of notes that you can have for Forensics?
According to rule 2.a.xv, you may bring a binder of any size filled with anything as long as the materials are secured to the rings.
Thank you and you can bring all of the notes with you to the forensics lab?
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Re: Forensics C

Post by amp 3914 »

samlan16 wrote:
amp 3914 wrote:Is there a limit to the amount of notes that you can have for Forensics?
According to rule 2.a.xv, you may bring a binder of any size filled with anything as long as the materials are secured to the rings.
Thank you and you can bring all of the notes with you to the forensics lab?
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