Neoprene Gloves Juba - 3945 NEOTHERM

Name: 3945
Brand: Juba

Neoprene coated glove on foam cotton support

Normative

3121X

EN388:2016 Protective gloves against mechanical risks.
The EN388: 2003 standard is renamed EN388: 2016, the year of its revision. The reason for the modification is given by the discrepancies in the results between laboratories in the knife cut test, COUP TEST. Materials with high levels of cut produce a dulling effect on the circular blades, which undermines the result.

The new regulation was published in November 2016 and the previous one is from the year 2003. During these 13 years, there has been a great innovation in the materials for the manufacture of cutting gloves, they have forced to introduce changes in the tests to be able to measure with more rigorous levels of protection.

pictograma 388 pictograma 388A1

A - Abrasion resistance (X, 0, 1, 2, 3, 4)
B - Blade Cut Resistance (X, 0, 1, 2, 3, 4, 5)
C - Tear resistance (X, 0, 1, 2, 3, 4)
D - Puncture resistance (X, 0, 1, 2, 3, 4)
E - Cutting by sharp objects ISO 13997 (A, B, C, D, E, F)
F - Impact test complies / does not comply (It is optional. If it complies, put P)

EN388:2016 PERFORMANCE LEVELS	1	2	3	4	5
6.1 Abrasion resistance (Cycles)	100	500	2000	8000	-
6.2 Blade cut resistance (Index)	1,2	2,5	5	10	20
6.4 Tear resistance (Newtons)	10	25	50	75	-
6.5 Puncture resistance (Newtons)	20	60	100	150	-

ENISO13997:1999 PERFORMANCE LEVELS	A	B	C	D	E	F
6.3 TDM: Cut resistance (Newtons)	2	5	10	15	22	30

AJKLOPST
30634666

pictograma 374-1 pictograma 374-5

The EN374: 2003 standard is renamed ENISO374: 2016. The purpose of this standard is to classify gloves according to their behavior when exposed to chemical substances.

They are divided into the following parts:
EN ISO 374-1:2016 - Terminology and performance requirements for chemical risks.
EN 374-2:2014 - Determination of resistance to penetration.
EN 16523-1:2015 + A1:2018 - Permeation by liquid chemicals under continuous contact conditions.
EN ISO 374-4:2019 - Determination of resistance to chemical degradation.
EN ISO 374-5:2016 - Terminology and requirements demanded for risks of microorganisms.

Gloves classification according to ENISO374-1: 2016

Gloves are divided into three types:

pictograma 374 tipo a TYPE A

Step time ≥ 30 min for at least 6 products

pictograma 374 tipo b TYPE B

Step time ≥ 30 min for at least 3 products

pictograma 374 tipo c TYPE C

Step time ≥ 10 min for at least 1 products

LETTER	CHEMICAL SUBSTANCE	CAS NUMBER	CLASS
A	Methanol	67-56-1	Primary alcohol
B	Acetone	67-64-1	Cetone
C	Acetonitrile	75-05-8	Nitrile compound
D	Dichloromethane	75-09-2	Chlorine hydrocarbon
E	Carbon disulfide	75-15-0	Sulphate organic compound
F	Toluene	108-88-3	Aromatic hydrocarbon
G	Diethylamine	109-89-7	Amine
H	Tetrahydrofuran	109-99-9	Heterocyclic ether
I	Ethyl acetate	141-78-6	Ester
J	n-heptane	142-85-5	Saturated hydrocarbon
K	Sodium Hydroxide 40%	1310-73-2	Inorganic alkaline
L	Sulphuric acid 96%	7664-93-9	Inorganic, oxidising mineral acid
M	Nitric acid 65%	7697-37-2	Inorganic, oxidising mineral acid
N	Acetic acid 99%	64-19-7	Organic acid
O	Ammonia Hydroxide 25%	1332-21-6	Organic Alkaline
P	Hydrogen peroxide 30%	7722-84-1	Peroxide
S	Hydrofluoric acid 40%	7664-39-3	Mineral organic acid
T	Formaldehyde 37%	50-00-0	Aldehyde

Levels of resistance to permeability

TAVERAGE PENETRATION TIME	PERFORMANCE LEVELS	AVERAGE PENETRATION TIME	PERFORMANCE LEVELS
> 10	Class 1	> 120	Class 4
> 30	Class 2	> 240	Class 5
> 60	Class 3	> 480	Class 6

Gloves classification according to EN374-2:2014
It is the advance of chemical products through the material, seams of the glove at a non-molecular level. Air leak test: the glove is inflated with air and immersed in water. The appearance of air bubbles is controlled within 30 '. Water leak test: the glove is filled with water and the appearance of water droplets is controlled. If these tests are positive, the pictogram will be put on.

Gloves classification according to EN374-4: 2013
Detriment to some of the glove's properties due to contact with a chemical. Eg: discoloration, hardening, softening, etc.Permeation test EN 16523-1. It is the advancement of chemicals at the molecular level. The resistance of the glove material to permeation by a chemical is determined by measuring the time it passes through the material.

Modification of the ENISO374-5: 2016 standard
When the glove passes the test described for virus protection, the word “virus” will appear under the pictogram. If nothing appeared, protection would only be assured against bacteria.

X2XXXX

Ratified by the Spanish Standardisation Association in June 2020.

Main changes:

Extension of the scope of the standard to domestic use: oven mitts/gloves.
Gloves that reach a level 3 or 4 of any thermal property must reach at least a level 3 in flame propagation. Otherwise, the maximum level that may be reached in the relevant thermal property shall be level 2.
Propagation limited to flame: prohibition of hole formation. Reduction of maximum post-combustion time for level 1. Change in ignition timing.
Heat by contact. Obligation to test any material coming in contact with heat.
Tear resistance. This trial is included.
Convective heat. The test is performed without reinforcement.
New pictogram, for gloves without flame protection.
A minimum length is introduced when resistance against small molten metal splashes is present.
After heat resistance tests, the samples must not suffer signs of melting or holes.

MINIMUM LENGTH OF THE TESTED GLOVES FOR E OR F
SIZE	LENGTH
5	290
6	300
7	310
8	320
9	330
10	340
11	350
12	360
13	370

A - Flame Behaviour
Changes in method and table. To perform the test, the ignition time now goes from 15 to 10" and the post-ignition time for level 1 goes from 20 to 15".

LEVEL OF PREFORMANCE	POST-INFLAMMATION TIME	POST IGNITION TIME
1	≤ 15	Not required
2	≤ 10	≤ 120
3	≤ 3	≤ 25
4	≤ 2	≤ 5

B - Heat by contact
Changes in the test method. In EN407:2004 only the palm is tested, whereas with EN407:2020 any other point that may come into contact is tested.