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This October for World Standards Day 2013.

science
Researchers Develop Off-Grid Sterilization with Solar Steam
Original article: Researchers Develop Off-Grid Sterilization with Solar Steam.
Copyright 2013 by Virgo Publishing https://www.infectioncontroltoday.com/
Posted on: 07/22/2013
Rice University graduate student Oara Neumann, left, and scientist Naomi Halas are co-authors of a new study about a highly efficient method of turning sunlight into heat. They expect their technology to have an initial impact as an ultra-small-scale system to treat human waste in developing nations without sewer systems or electricity. Photo by Jeff Fitlow/Rice University.
Effects of Non-Condensable Gases (NCGs) on Steam Sterilisation Processes
Read the full text: Effects of Non Condensable Gases on Sterilization
Summary:
A gravity displacement (class N) steam sterilization process can not reliably remove gases from hollow or porous items, resulting in areas that do not get sterilized, and the failure of the load. They should not be used for body jewelry, needles, tattoo tubes or textiles.
REVIEW
395 CENTRAL SERVICE Volume 13 2005
ZENTRAL STERILISATION
Effects of Non-Condensable Gases (NCGs) on Steam Sterilisation Processes
U. Kaiser
Keywords
- steam sterilisation process
- non-condensable gases (NCGs)
- process challenge device (PCD)
Introduction
The dangers posed by non-condensable gases (NCGs) in steam sterilisation processes have long been underestimated. Biological indicators, or the best chemical indicators on the market, do not signal the presence of a NCG content of up to 10% in a sterilisation process so long as there is mixing of steam and NCGs in the sterilisation chamber.
Titanium body jewelry
What Titanium materials are best for body jewelry? My articles at https://jewelry.piercing.org/ and https://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.
How to relate a certificate of tests (Mill Certificate) to an appropriate standard
Learn how to relate a certificate of tests (Mill Certificate) to an appropriate standard for body jewelry biomaterials
Glass as a material for body jewelry
Among jewelry materials for initial piercing, glass deserves a closer look.
Statim misconceptions
Did you read confusing STATIM information in the old APP Procedure Manual? (prior to 2013 edition)
STATIM in the old APP Procedure Manual

In the current 2013 edition of the APP Procedure Manual, I helped correct the previously confusing references to Statim autoclaves.
The current 2013 version of the guidelines refer to the Statim and the acceptable use of unwrapped sterilization methods.
Quotes from the 2013 APP procedure manual:
Sterilization Methods:
Benchtop Sterilization
- Steam under pressure (saturated steam/steam autoclave): 220-270 kpa pressure at 132° Centigrade (270° Fahrenheit) for 3-40 minutes depending on cycle.
- Steam autoclave process types
- Steam flush-pressure pulse (type S):
“Another design in steam sterilization is a steam flush-pressure pulsing process, which removes air rapidly by repeatedly alternating a steam flush and a pressure pulse above atmospheric pressure. Air is rapidly removed from the load as with the prevacuum sterilizer, but air leaks do not affect this process because the steam in the sterilizing chamber is always above atmospheric pressure. Typical sterilization temperatures and times are 132°C to 135°C with 3 to 4 minutes exposure time for porous loads and instruments.” The Statim is an example of a type S steam flush pressure pulse autoclave, which is acceptable for sterilization.
Aseptic Field
The actual procedure surface is referred to as an “aseptic field,” and is a sterilized surface that becomes exposed to air contact only at the beginning of the piercing procedure. The aseptic field used by most piercers is the sterile inside surface of a freshly opened large autoclave or sterile glove package, Statim cassette, rigid sterilization container, or sterilized tray. Once the package is opened, sterile tools, needles, jewelry, and disposables can be dropped onto the inside surface for use. The exterior of sterilized packages such as those containing the jewelry should not touch the aseptic field; the contents should be carefully dispensed onto it.
DISPOSABLE SUPPLIES
To minimize the risk of cross-contamination and to ensure that piercing room procedures are as clean as possible, many components of the tray setup must be disposable. Unless supplies are purchased presterilized* or will be sterilized in an autoclave immediately prior to the procedure, all disposables must be individually packaged in autoclave bags, sterilized, and remain intact in their pouches stored in enclosed, nonporous drawers or containers until use. Disposable materials that must be sterilized include: marking implements, piercing needles, corks or synthetic stoppers, elastic bands, swabs, and gauze.
* This includes only FDA-cleared items that are commercially sterilized according to accepted medical standards. The supplier must make documentation of appropriate sterilization available.
The following is to clarify the inconsistencies in the previous editions:
Anodizing Titanium and Niobium Body Jewelry
Sign up for the workshop with Brian Skellie
APP Conference / Online “Anodizing is Awesome!”
Previously Presented at BMXnet, UKAPP, APP, LBP, 2º Congresso Educativo para Perfuradores Corporais da América do Sul – ATPB 2013 & more events
1) What is Anodizing?
Anodizing is a process where a coating is built up on the surface of certain metals (titanium, niobium, tantalum, aluminum, magnesium and zinc) by heating, with chemicals, or by electricity. In the case of titanium, the coating that is built up is a layer of titanium dioxide. Titanium dioxide, which is also known as titanium oxide, occurs naturally on the surface of titanium. Anodizing the surface of titanium can be done by the use of heat but the results are not easily controlled. The most common method is to form an oxide layer on the surface with the use of electricity. The way that this is done is with a variable power supply in which an electrode is connected to the positive side (anode), and one to the negative side (cathode). Both are then submerged into a mildly conductive solution, thus completing the electrical circuit. The piece that is to be anodized is connected to the positive side, and that is why the process is called “anodizing”.
Nonconforming Imported Titanium
Some of my colleagues have already learned of this from my biomaterials presentations at APP 2010 and BMXnet conferences. This reflects upon imported jewelry, and the situations that can arise when quality controls are not normalized. So far, most of the response I get from US distributors of medical titanium alloys is for ELI material they only use domestic melts.
I’ve been talking with fellow ASTM committee members about international sourcing for F136 Ti in particular. They all only use domestic melts for ELI material from Perryman, ATI and Fort Wayne Metals for example . Therefore when companies in China or elsewhere want to make jewelry from F136 they either have to buy from a US or EU source that has a distributor in their area, eg Taiwan, or buy from an local mill melt, that quite possibly won’t meet FDA, BSI, ISO etc.
Titanium standards: why not G23?
Please stop referring to body jewelry materials by overly vague and inappropriate standards. Using the term G23 for body jewelry materials is too superficial, and is not an implant standard.
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