EN ISO 374-5

EN 374-1: 2016

Protective gloves against dangerous chemicals and micro-organisms.
Part 1: Terminology and performance requirements for chemical risks

Gloves against chemicals must resist against penetration (this is a movement on a non-molecular level of a chemical through materials, seams, pinholes, or other imperfections in a protective glove material) and permeation (this is a process which a chemical moves through a protective glove material on a molecular level).

Class	Breakthrough time
1	> 10 minutes
2	> 30 minutes
3	> 60 minutes
4	> 120 minutes
5	> 240 minutes
6	> 480 minutes

3 types of gloves are defined according to the number of chemicals tested on a list of 18, and the breakthrough time.

TYPE	Breakthrough time
A	≥ 30 min for at least 6 products of the list (see below)
B	≥ 30 min for at least 3 products of the list (see below)
C	≥ 10 min for at least 1 products of the list (see below)

18 chemicals are eligible to perform the test.
Each chemical corresponds to a letter.

Code	Chemical	Cas n°	Class
A	Methanol	67-56-1	Primary alcohol
B	Acetone	67–64–1	Ketone
C	Acetonitrile	75-05-8	Nitrile kompozite
D	Dichloromethane	75–09–2	Chlorinated hydrocarbon
E	Carbone Disulphide	75–15–0	Organic compound
F	Toluene	108–88–3	Aromatic hydrocarbon
G	Diethylamine	109–89–7	Amine
H	Tetrahydrofuranne	109–99–9	Heterocyclic Ether
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, oxidising
M	nitric acid (65% ± 3) %	7697–37–2	Inorganic mineral acid
N	acetic acid (99% ± 1) %	64–19–7	Organic acid
O	ammonia 25%	1336–21–6	Organic base
P	hydrogen peroxid 30%	7722-84-1	Peroxide
S	hydrofluoric acid 40%	7664-39-3	Inorganic mineral acid
T	formaldehyde 37%	50-00-0	Aldehyde