CHEMICAL GLOVE TESTING IS CHANGING

A new version of EN 374, the standard used to regulate chemical protective gloves, has been published as a joint International and European standard. PERMEATION EN ISO 374-1





Tested against 6 chemicals from the table below with a breakthrough time of 30 mins or more (level 2)

Tested against 3 chemicals from the table below with a breakthrough time of 30 mins or more (level 2)

Tested against 1 chemical from the table below with a breakthrough time of 10 mins or more (level 1)


CODE LETTER
CHEMICAL
CAS NUMBER
CLASS
CODE LETTER
CHEMICAL
CAS NUMBER CLASS
A Methanol 
67-56-1 
Primary alcohol 
B
Acetone67-64-1
Ketone
C Acetonitrile
75-05-8 
Nitrile compound
D Dichloromethane
75-09-2
Chlorinated hydrocarbon
E Carbon disulphide 
75-15-0 
Sulphur containing organic compound
F Toluene 
108-88-3
Aromatic hydrocarbon
G Diethylamine 
109-89-7
Amine 
H Tetrahydrofuran
109-99-9 
Heterocyclic and ether compound
I Ethyl acetate 
141-78-6
Ester 
J n-Heptane
142-82-5
Saturated hydrocarbon 
K Sodium hydroxide 40%
1310-73-2
Inorganic base
L Sulphuric acid 96%
7664-93-9 
Inorganic mineral acid 
M Nitric acid 65%
7697-37-2
Inorganic mineral acid, oxidising
N Acetic acid 99%
64-19-7 
Organic acid
O Ammonium hydroxide 25% 
1336-21-6 
Organic base 
P Hydrogen peroxide 30% 
7722-84-1 
Peroxide 
Q Hydrofluoric acid 40%
7664-39-3 
Inorganic mineral acid
R Formaldehyde 37%
50-00-0
Aldehyde


PROTECTION AGAINST MICRO-ORGANISMS     EN 374-1:2003
EN 374-1:2003:  covers the ability of the glove to protect the user against micro-organisms. In very simple terms how likely is the glove to have a pin hole or other imperfection which would allow the glove to leak. In order to carry the “micro-organism” pictogram the glove should achieve Level 2 or above based on the table below.
Performance Level
Acceptable Quality Level (AQL) 
Inspection Level
Level 1
>4.0
S4
Level 2
>1.5
G1
Level 3
>0.65
G1
NEW TEST                       EN ISO 374-5:2016