[Swansea Hackspace] Filament Colour

[Neil Jones]

ON 16:34, 9TH AUG 2014, DJDAVIES83 WROTE:

I tried to bid on three different rolls of this fillament from this seller a couple of weeks back, I didnt have a "linked" paypal account so ebay would not let me bid.

http://pages.ebay.com/link/?nav=item.view&id=321487007919&alt=web

BUT this is ABS we are using PLA.
PLA is a much better material to be using. ABS smells badly when you use it and the fumes are not
something I would like to be regularly exposed to. It creates Acrylonitrile when heated and extruded.

This is from the US government
http://www.epa.gov/chemfact/acry-fs.txt [1]

"

HOW DOES ACRYLONITRILE AFFECT HUMAN HEALTH AND THE ENVIRONMENT?

 Effects of acrylonitrile on human health and the environment depend
on how much acrylonitrile is present and the length and frequency of
exposure. Effects also depend on the health of a person or the
condition of the environment when exposure occurs.

 Breathing acrylonitrile for short periods of time adversely affects
the nervous system, the blood, the kidneys, and the liver. These
effects subside when exposure stops. Nervous system effects of AN
range from headaches and dizziness to irritability, rapid heart beat,
and death. Symptoms of acrylonitrile poisoning may occur quickly
after exposure or after levels of breakdown products like cyanide
build up in the body. Direct contact with acrylonitrile liquid
severely damages the skin. Acrylonitrile liquid or vapor irritates
the eyes, the nose, and the throat. These effects are not likely to
occur at levels of acrylonitrile that are normally found in the
environment.

 There are several health effects case studies of acrylonitrile
workers. The methods used in these studies limit conclusions that can
be made from the results. These studies show that workers repeatedly
breathing small amounts of acrylonitrile over long periods of time may
develop cancer. Cancer occurs primarily in the respiratory tract. 
Laboratory studies show that repeated exposure to acrylonitrile in air
or in drinking water over a lifetime also causes cancer in animals. 
Studies also show that repeated exposure to acrylonitrile adversely
affects the respiratory and central nervous systems and causes
developmental toxicity in laboratory animals.
"

 

Links:
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[1] http://www.epa.gov/chemfact/acry-fs.txt

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