Protective gloves:
design, manufacturing and quality control

Design and Quality Control of PPE and garments represent the added value of our company, always committed to continuous improvement of our product range. Our technical department comprises a Test Lab equipped with cutting-edge technologies for mechanical, chemical tests and simulation of in-field use of gloves and garments.
We are able to determine the performance of materials, check their suitability for use and certify their conformity and continuity of production.
The equipment and procedures adopted by our Laboratory are approved by the French Notified Body CTC – Lyon (No. 0075) which certifies the suitability of the laboratory to issue tests reports (EN388:2003; EN420:2010), formally validated by the Notified Body.


Our Laboratory is able to verify compliance with the following standards:

EN 388:2003 general requirements for protective gloves

EN 388:2016 general requirements for protective gloves

EN 388:2003: protective gloves against mechanical risks

According to the UNI EN 420:2010 standard, our laboratory is equipped to carry out the following tests:
Test laboratorio THICKNESS Guanti di protezione
The length match of the size glove is defined in accordance with EN420.
pH-METER

pH value is measured on an aqueous extract. The material to be tested is pulverized and mixed with demineralised water.
The solution is then stirred for 6 hours and filtered prior to analysis. The pH-meter is calibrated after each use.
The pH value detected must be between 3.5 and 9.5.

PHOTOMETER
The solution used to measure pH is also used to detect the presence of CrVI by means of specific chemical analysis.
If the result is positive, a quantitative analysis is made through photometric measurement. For leather gloves, the Hexavalent Chromium content must be less than 3 mg/kg.
Dexterity is tested by taking the index finger and thumb of a metal cylinder three times consecutively without any uncertainty within 30 sec. Depending on the cylinder diameter, the dexterity level ranges from a minimum of 1 to a maximum level of dexterity 5.
According to the UNI EN 388:2003 standard, our laboratory is equipped to carry out the following tests:
Martindale Abrasimeter

Round test specimens of the material under test (fabric/leather, etc.) are abraded with circular movements against a standardized abrasive under a standard pressure (9 kPa). Abrasion resistance is determined by the number of cycles necessary to break the material (formation of a hole through the test specimen). Four test specimens are tested simultaneously; each test specimen is prepared and fitted separately on a specific rotating head, moving according to the Lissajous elliptic pattern.

In the 2016 update of the EN388 standard, the Klingspor PL31B, Grit 180 model has been identified as standardized abrasive.

Safety Systems gloves have been tested and certified using this abrasive paper since 2014.

Cut Tester

Measurement is based on comparison between the results obtained with a control test speciment (canvas master fabric) and those obtained from the specimen under test. A circular blade having an alternating rotational movement, guided by an arm, moves horizontally on the test specimen at a pressure of 5N.
An electronic counter measures the number of cutting cycles before the blade comes into contact with the conductive rubber positioned under the test specimen. At this point, an electronic circuit stops the machine automatically. Cut resistance is determined applying the mathematical formula defined by the standard.

EN388:2016 Resistenza al taglio: integrazione del metodo EN ISO 13997 ed utilizzo dell’apparecchiatura TDM-100 (Tomodynamometer).
Il TDM utilizza una lama dritta al fine di effettuare un taglio lineare attraverso il provino. Il principio di questo test è la variazione del carico (peso) applicato alla lama per provocare il taglio, con un singolo movimento. Più precisamente, durante 4 serie da 5 tagli (20 prove) viene individuato il peso (Newton) necessario a tagliare il provino. I livelli di resistenza al taglio misurati secondo il test EN ISO 13997 vengono indicati con 6 lettere da A a F, come indicato nella tabella, per evitare confusione con i livelli numerici della norma EN388:2003.

Catalogo ITA Lanzi 2017_OK __ottimizzato x mail.pdf

Nella norma EN388:2016, il test secondo la ISO 13997 è stato inserito in aggiunta alla prova di taglio della EN388:2003 per i guanti che contengono materiali fortemente abrasivi. Il Coup Test verrà ancora utilizzato e sarà a discrezione del produttore mostrarne il risultato (1-5) oppure sostituirlo con una “X”. Nel periodo di transazione normativa i guanti già certificati secondo la norma EN388:2003 restano conformi alle Certificazioni CE in vigore.

Dynamometer

This tool is used to determine the tear resistance of a material (fabric, leather, dipped liner).
It is also possible to measure the elongation and the breaking load of the yarn using specific clamps.
Tear resistance is defined as the force necessary, measured in Newton, to tear a standard test specimen. The test is carried out using a traction device equipped with a strength detector.

Dynamometer/Persoz

A circular, 40 mm diameter test specimen is taken from the palm of the glove.
The test specimen is fastened to a specific device with the outer surface facing a standard steel stylus that traverses vertically at constant speed until the test specimen is perforated, determining the puncture resistance of the material measured in Newton.

 
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