EN388 Glove Mechanical Rating Chart

QUALITY
SAFETY RATINGS
& VALUE
AS/NZS 2161.10:2005 PROTECTION AGAINST
CHEMICALS &
MICRO-ORGANISMS (EN374)
UNDERSTANDING
SAFETY RATING
STANDARDS
This standard specifies the capability of gloves to protect
the user against chemicals and/or microorganisms.
The gloves length of life. Degradation is rated
according to the change in integrity following chemical
exposure. The rate of degradation depends on which
chemical the glove has come in contact with.
Penetration - is the flow of chemicals and microorganisms through the porous material, seams, small
holes or other small defects in the glove material.
Permeation - is the process where a chemical
passes through the glove’s material on a molecular
level. Permeation means the following: a chemical’s
molecules penetration through the outer material of
the glove. Diffusion is the movement of molecules
through the material. Desorption is the outward
flow of molecules from inside the glove.
AS/NZS 2161.3:2005 - Protection Against
AS/NZS2161.4:1999-PROTECTION AGAINST
Mechanical Risks (EN388)
THERMAL RISKS - HEAT
(EN407)
Mechanical risk is the risk caused by abrasion,
blade cut, tear and puncture to the wearer of the
glove. A tested item is given a performance rating
of 1 to 4 (lowest to highest) on some or all of the
listed categories. The ‘blade cut resistance’ test is
an exception as it measures from 1 to 5.
& FIRE
This diagram details the testing categories for EN407:
2004. A tested item is given a performance rating of
1 to 4 (lowest to highest) on some or all of the listed
categories. Frequently an ‘x’ will replace one or more
of the numbers, this means that the corresponding
test was not performed.
4 4 4 4 4 4
45 44
Abrasion resistance
Blade cut resistance
Puncture resistance
Tear resistance
The performance values assigned against each
test factor correspond approximately to the
following values.
burning behaviour
contact heat
convective heat
radiant heat
small splashes of molten metal
large quantities of molten metal
Performance level Performance
1
Abrasion resistance (cycles)
2
1
3
4
Blade cut resistance
100 500 2000 8000
Tear resistance (newtons)
1.2
2.5
5
10
Puncture resistance (newtons)
20
60
100
150
a. Burning behaviour - After glow time 5
2
3
4
<3s <2s
N/A <120s <25s <5s
b. Contact heat - Contact temperature 100˚C 250˚C 350˚C 500˚C
b. Contact heat - threshold time
20
CodeChemical Category
letter
A
Methanol Primary alcohol
B
Acetone Ketone
C Acetonitrile Nitrile compound
D Dichloromethane
Chlorinated paraffin
E
Carbon disulfide Sulphur containing organic compound
F
Toluen Aromatic hydrocarbon
G Diethylamine a. Burning behaviour - After flare time <20s <10s Test
The ‘Chemical resistant’ glove pictogram
must be accompanied by a 3-digit code.
This code refers to the code letters of
3 chemicals (from a list of 12 standard
defined chemicals), for which a breakthrough time of
at least 30 minutes has been obtained.
>15s >15s >15s >15s
Amine
H Tetrahydrofuran Heterocyclic and ethereal compound
I
Ethyl acetate Ester
Saturated hydrocarbon
J
n-Heptan K
Sodium hydroxide 40% Inorganic base
L
Sulfuric acid 96% Inorganic mineral acid
Permeation: Each chemical tested is classified in terms
of breakthrough time (performance level 0 to 6).
Measured breakthrough
Protection
timeIndex
c. Convective heat (heat transfer delay)
>4s >7s >10s >18s
> 10 minutes class 1
d. Radiant heat (heattransfer delay)
>7s >20s >50s >95s
> 30 minutes class 2
>10s >15s >25s >35s
> 60 minutes class 3
> 120 minutes class 4
> 240 minutes class 5
> 480 minutes class 6
e. Small drops molten metal (#drops) f. Large quantity molten metal (mass)
30g 60g 120g 200g
Abrasion resistance:
How well can the material of the glove resist
exposure to repeated abrasion.
AS/NZS 2161.5:1998 Protection against
cold (EN511)
How well can the material of the glove resist
cutting objects.
This diagram details the testing categories
for BS EN511: 1994. A tested item is given
a performance rating of 1 to 4 (lowest to highest) on
some or all of the listed categories. Water Impermeability is an exception in this case, as this test is pass/
fail - ‘1’ signifies a pass.
Frequently an ‘x’ will replace one or more of the
numbers, this means that the corresponding test was
not performed.
The ‘Low Chemical resistant’ or
‘Waterproof’ glove pictogram is to be
used for those gloves that do not achieve
a breakthrough time of at least 30 minutes
against at least three chemicals from the defined
list, but which comply with the Penetration test.
Blade cut resistance:
Tear resistance:
What force is needed to enlarge, by tearing a
precut hole in the material of the glove.
Puncture resistance:
What force is needed to puncture the palm of
the glove with a calibrated spike.
0800 148 383
email: sales@armoursafety.co.nz
+64 9 6222 996 facsimle: +64 9 6222 997
POST: PO Box 13 005 ONEHUNGa Auckland 1643
The ‘Micro-organism’ pictogram is to be
used when the glove conforms to at least
a performance level 2 for the Penetration test.
tel.:
N.Z.
www.armoursafety.co.nz
Safety EQUIPMENT IMPORTERS