||Decimeter, one tenth of one meter in
length or depth
||Square decimeter in surface area,
which is approximately 4 inches by 4
inches of surface area
||Mega Pascals, one million Pascals
1 MPa = 145 PSI
1 Pascal = 1 newton of force per square meter in strength
||Milligram, one thousandth of one gram
||Microgram, one millionth of one gram
||One thousandth of one inch in
1 mil = 0.001 inches
1 mil = 0.0254 mm
||Milliliter, one thousandth of one
||Millimeter, one thousandth of one
1 mm = 0.0394 inches
Absorbable Dusting Powder
A glove powder used to ease the donning of gloves. It is made of
edible modified cornstarch and a small percentage of magnesium oxide
as defined by USP, the United States Pharmacopoeia.
A chemical used as a catalyst to accelerate the process of turning
liquid latex into gel form.
Acceptable Quality Level, is a quality specification that the FDA and
the manufacturers use to specify the pinhole rate in surgical and exam
gloves. The FDA specifies an AQL of 1.5 for surgical gloves and 2.5
for exam gloves. AQL 2.5 means the defect level from a very large
numbers of gloves (say one million pieces) will not be more than 2.5%.
The American Society of Testing and Materials. Organized in 1898, The
ASTM is a not-for-profit organization that provides a forum for the
development and publication of voluntary consensus standards for
materials, products, systems and services in various industries. The
FDA uses some of the standards and specifications developed by the
ASTM to establish its requirements for examination gloves.
B Grade Gloves
Also known as off-line gloves or industrial grade gloves. They are not
for medical use. These gloves are either made to not meet medical
glove standards in the first place, or they fail in pinhole rates or
specifications in quality control, and are downgraded from medical
grade to B grade. These gloves are usually labeled as disposable
gloves and cannot be labeled as exam gloves.
A mold-release agent added in production to help the release of gloves
from the hand molds or formers. Calcium carbonate occurs naturally in
chalk, limestone and sea shells.
Dermatitis and inflammation of the skin, that later can develop into
thickening and hardening of the skin.
Measurement of the length a glove can be stretched before it
breaks. It is expressed as a percent of the original length of the
glove right at the moment it breaks. The higher the percent, the more
stretchable the glove material.
Industrial Grade Gloves
See B grade gloves.
Natural rubber latex is a milky sap-like substance produced by the
rubber tree called Hevea brasiliensis, found in Southeast Asia, India
and South America. When the trunks of these rubber trees are tapped,
they produce latex. This latex is then collected and used in
The washing and cleansing process with water in the manufacturing of
gloves, by which excess chemicals and/or latex protein are dissolved
and washed away from the gloves.
LEAP method is ELISA (enzyme-linked immunosorbent) assays that use
antibodies that are sensitive to latex proteins to quantitatively
measure the level of antigenic proteins in latex extracts. The
antibodies IgG are generated from rabbits that are immunized with
purified latex protein.
A birth defect in the spinal column, whereby the vertebral arches (top
part of the backbone) is absent, and through which the spinal
membranes may push or jut outward. Therefore, this part of the central
nervous system is not well protected. Patients with Spina Bifida are
at very high risk of developing latex related allergy.
Modified Lowry method uses a chemical assay to measure total protein
levels. The assay uses a chemical dye to interact with certain amino
acids. The result in a color shift is measured to determine the change
in optical absorbance, which means the detection of protein when
comparing it to a standard curve using egg protein (purified ovalbumin)
as reference point.
A low modulus glove is easy to stretch and flex, whereby a high
modulus glove is hard to move and stretch.
Movement of substance through a thin film, such as a glove, on a
Primary Skin Irritation Test
A test to determine if certain material can cause skin irritation. The
test material, such as a piece of glove material, is attached to the
skin of test subjects, such as rabbits or guinea pigs. After
maintaining the skin contact for 24 hours, the contact area is
observed for up to 72 hours for any kind of skin reactions.
Inflammation of the nasal mucous membrane.
The process of developing an allergy.
Measurement of the amount of force or pull required to break a glove.
Tensile strength is expressed in Mpa, and the higher the number, the
stronger the glove material.
A manufacturing process whereby latex gloves are treated and hardened
from gel form into solid form in a heating oven.