NASA Robot Plunges into Volcano Defying Graphene’s
Figure 2: When cleaning
the floor of the isolator,
use a modified figure- 8
pattern as shown.
new clean wiper. A new surface of the wiper is used to
wipe each individual surface.
6. Mist and wipe the inside of the isolator/glovebox in the
same order as cleaning a cleanroom as mentioned above.
Care must be taken when cleaning the top of the isolator/glovebox so as to not destroy the HEPA filter. Do not
allow any liquid to contaminate the filter face.
Any section and/or corner that cannot be reached with
integrated gloves can be cleaned using a commercially
available isolator cleaning tool or other recommended
device designed for the task.
7. Remove soiled wipers and waste chute or appropriate waste
removal device using appropriate waste removal procedure.
8. Remove cleaning materials from isolator/glovebox.
9. Record all cleaning on Isolator Cleaning Documentation
The above standard operating procedure may be used as a
template that must be revised for your particular operation.
More detailed information should be written into the SOP
to direct all operators to perform the cleaning of the isolator/glovebox in a uniform, repeatable, and robust manner.
Additional information that should be contained in the standard operating procedure is how to monitor the cleanliness
of the isolator/glovebox, the alert and action specifications,
and how to correct out of specification results.
Just as environmental monitoring of the cleanroom documents the efficacy of the cleaning of the cleanroom, an environmental monitoring program should be developed to monitor the removal of viable and non-viable particles inside the
isolator/glovebox. The environmental monitoring test results
should be recorded and trended. This will provide the documented evidence required to assure the cleaning method is
robust and repeatable and the cleaning is effective.
Jan Eudy is a Cleanroom/Contamination Control Consultant
as well as a Fellow and Past President, Institute of Environmental
Sciences and Technology. She is located in Carolina Beach, N.C.
and can be reached at firstname.lastname@example.org.
Exploring volcanoes is risky business. That’s why Carolyn Parcheta – a
NASA postdoctoral fellow
based at NASA’s Jet Propulsion
Laboratory in Pasadena, Calif. –
and her co-advisor, JPL robotics
researcher Aaron Parness, are
developing robots that can get into crevices where humans wouldn’t be able to go,
gaining new insights about these wondrous geological features.
The research has implications for extraterrestrial volcanoes. On both Earth
and Mars, fissures are the most common physical features from which magma
erupts. This is probably also true for the previously active volcanoes on the moon,
Mercury, Enceladus, and Europa, although the mechanism of volcanic eruption
-- whether past or present -- on these other planetary bodies is unknown, Parcheta
Finding preserved and accessible fissures is rare. VolcanoBot 1 was tasked with
mapping the pathways of magma from May 5 to 9, 2014. It was able to descend
to depths of 82 feet in two locations on the fissure, although it could have gone
deeper with a longer tether, as the bottom was not reached on either descent.
VolcanoBot 1 is enabling the researchers to put together a 3-D map of the
fissure. They confirmed that bulges in the rock wall seen on the surface are also
present deep in the ground, but the robot also found a surprise: The fissure did
not appear to pinch shut, although VolcanoBot 1 didn’t reach the bottom. The
researchers want to return to the site and go even deeper to investigate further.
The California Institute of Technology manages JPL for NASA. The JPL is
home to the Spacecraft Assembly Facility, a Class 10,000 ISO 7 cleanroom with
horizontal airflow and return.
Aresilience to extreme con- ditions by the most trans- parent, lightweight and
flexible material for conducting
electricity could help revolutionize the electronic industry,
according to a new study.
Researchers from the University of Exeter have
discovered that GraphExeter – a material adapted
from the ‘wonder material’ graphene – can withstand prolonged exposure to both high temperature
The research showed that the material could
withstand relative humidly of up to 100 percent at
room temperature for 25 days, as well as temperatures of up to 150°C (302°F) – or as high as 620°C
(1148°F) in vacuum.
The previously unknown durability to extreme
conditions position GraphExeter as a viable and
attractive replacement to indium tin oxide (ITO),
the main conductive material currently used in
electronics, such as ‘smart’ mirrors or windows, or
even solar panels. The research also suggests that
GraphExeter could extend the lifetime of displays
such as TV screens located in highly humid environments, including kitchens.