EN ISO 374-1:2016
This standard provides gloves with one of 3 different classifications. Type A, B or C. The classification for each category is as follows:
|
Category
|
Minimum Breakthrough Time
|
Number of Chemicals Tested
|
|
Type A
|
30 minutes
|
6
|
|
Type B
|
30 minutes
|
3
|
|
Type C
|
10 minutes
|
1
|
There is a list of 18 chemicals that can be used to achieve accreditation to EN ISO 374-1. Each of them has a designated letter (or “code”) that identifies it in the glove’s rating:
|
Code
|
Chemical
|
|
A
|
Methanol
|
|
B
|
Acetone
|
|
C
|
Acetonitrile
|
|
D
|
Dichloromethane
|
|
E
|
Carbon Disulphide
|
|
F
|
Toluene
|
|
G
|
Diethylamine
|
|
H
|
Tetrahydrofuran
|
|
I
|
Ethyl acetate
|
|
J
|
n-Heptane
|
|
K
|
Sodium hydroxide 40%
|
|
L
|
Sulphuric Acid 96%
|
|
M
|
Nitric Acid 65%
|
|
N
|
Acetic Acid 99%
|
|
O
|
Ammonium hydroxide 25%
|
|
P
|
Hydrogen peroxide 30%
|
|
S
|
Hydrofluoric Acid 40%
|
|
T
|
Formaldehyde 37%
|
EN 16523-1:2015
This standard looks at permeation. Permeation is a step further than penetration (as tested by EN ISO 374-1), it’s defined as the movement of the chemical through the glove under continuous contact. For a glove to be certified, 3 test samples must be taken from the palm, where a cuff is longer than 400mm a further 3 samples are taken from the wrist. Samples must also be taken from any area where there is a seam. Ratings are as follows:
|
Performance Level
|
Breakthrough Time (Permeation)
|
|
1
|
>10 minutes
|
|
2
|
>30 minutes
|
|
3
|
>60 minutes
|
|
4
|
>120 minutes
|
|
5
|
>240 minutes
|
|
6
|
>480 minutes
|
