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 LETTERS

CHEMICAL

CAS NUMBER

CLASS

CODE LETTERS

CHEMICAL

CAS NUMBER

CLASS

A

Methanol

67-56-1

Primary alcohol

J

n-Heptane

142-82-5

Saturated hydrocarbon

B

Acetone

67-64-1

Ketone

K

Sodium hydroxide 40%

1310-73-2

Inorganic base

C

Acetonitrile

75-05-8

Nitrile compound

L

Sulphuric acid 96%

7664-93-9

Inorganic mineral acid,

D

Dichloromethane

75-09-2

Chlorinated hydrocarbon

M

Nitric acid 65%

7697-37-2

Inorganic mineral acid, oxidising

E

Carbon disulphide

75-15-0

Sulphur containing organic compound

N

Acetic acid 99%

64-19-7

Organic acid

F

Toluene

108-88-3

Aromatic hydrocarbon

O

Ammonium hydroxide 25%

1336-21-6

Organic base

G

Diethylamine

109-89-7

Amine

P

Hydrogen peroxide 30%

7722-84-1

Peroxide

H

Tetrahydrofuran

109-99-9

Heterocyclic and ether compound

S

Hydrofluoric acid 40%

7664-39-3

Inorganic mineral acid

I

Ethyl acetate

141-78-6

Ester

T

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

gloves protecting against bacteria and fungi will display the pictogram shown

gloves protecting against viruses, bacteria and fungi will display the pictogram shown