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chemistry

Titanium!

Titanium body jewelry

What Titanium materials are best for body jewelry? My articles at http://jewelry.piercing.org/ and http://brnskll.com/shares/titanium-standards-why-not-g23/ explain that the two most effective Titanium standards are alloyed ASTM F136 and pure ASTM F67, the most common being the former as it is stronger, harder and easier to polish. Both are used for permanent surgical implants.

CSS-Sharpie

Sharpies for labeling

“Most Sharpies have not been validated for industrial usage or for use in the sterilization conditions. There are a couple of Sharpie markers that do conform to the ASTM standard D4236 which means the product has been evaluated by a toxicologist for acute and chronic toxicity and the Safety Data Sheet (SDS) identifies ingredients as presenting any chronic health hazard, along with safe use instructions. The pens that bear the AP seal with the notation “conforms to ASTM D4236″ (see right) are the markers that may be used for labeling your packages.”

old laytex glove

Rubber Gloves: “Born” – and Now Banished – At Johns Hopkins – 01/14/2008

William Stewart Halsted, The Johns Hopkins Hospital’s first surgeon in chief, is widely credited as the first to develop and introduce rubber surgical gloves in the United States. That was in 1894, five years after the institution opened.

Now, in an effort to make medical care safer for patients and health care workers, The Johns Hopkins Hospital has become the first major medical institution to become “latex safe” by ending all use of latex gloves and almost all medical latex products.

Ti: what can slip by undetected

Nonconforming Imported Titanium

This is a follow up to the presentation the FDA made to my ASTM International committee on nonconforming imported titanium. It should have met ASTM F136 for surgical implants, however the Quality Systems at the mill that melted it were inadequate. More information from the FDA and a bit of legal analysis.

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