European Standards

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Guidance on EN ISO 20345:2022 and EN ISO 20347:2022

The new standards EN ISO 20345:2022 and EN ISO 20347:2022 have integrated specific and additional requirements. Some have been removed or have undergone changes. Here are the new requirements:

PL	Resistance to perforation (non-metallic insert)
AN	Ankle protection
PS	Resistance to perforation (non-metallic insert)
CR	Cut resistance
C	Partially conductive footwear
SC	Toe cap abrasion resistance
A	Antistatic footwear
SR	Slip resistance (on ceramic tile floor with glycerine)
HI	Heat insulation of the shoe bottom
WPA	Water penetration and absorption

Most important and significant features in EN ISO 20345:2022

Slip resistance (SR)

The previous 'SRC' (SRA + SRB) slip tests will no longer be used, the standard provides for a change in the procedure for performing the slip test under different conditions, called 'SR'

(see table below)

Sole resistance to hydrocarbons

This requirement is optional for all protection classes. If present it is indicated with FO in marking.

LADDER GRIP - LADDER GRIP (LG)

For a better grip on ladder rungs, the sole must have a construction that meets the requirements of the standard with a heel height of at least 10 mm, crampon height in the famice of at least 1.5 mm and a famice surface of at least 35 mm.

Resistance to perforation (P, PL, PS)

P Perforation resistance with metal insert;

PL Resistance to perforation with non-metallic insert (test performed with a Ø 4.5 mm nail);

PS Resistance to perforation with non-metallic insert (test performed with Ø3.0 mm nail).

Water penetration

The additional requirement WRU (water-resistant uppers), which describes the water-repellent effect of the footwear upper, has been changed to WPA (Water penetration and absorption). The requirements for the upper remain unchanged.

Toe abrasion resistance (SCUFF CAP)

A 'Martindale' abrasion test of 8,000 cycles is carried out to determine toe abrasion; the toe must not develop holes throughout its thickness.

Le Calzature per uso professionale a Norma EN ISO 20345:2011 sono contraddistinte da una “S” (dall’inglese Safety = Sicurezza) come Calzature di Sicurezza. La scarpa cosiddetta “di base” è marcata con le lettere “SB” (S = Sicurezza - “B” = Base). Questa Calzatura deve avere i seguenti requisiti minimi: • altezza del tomaio • puntale (lunghezza minima, base portante minima) • tomaia in pelle “crosta”, microfibra e similare • fodera anteriore • sottopiede • suola in qualsiasi tipo di materiale, può essere liscia • il tomaio, nella calzatura bassa, può essere aperta nella zona del tallone. Nelle Calzature “SB” non sono mai comprensivi i seguenti requisiti se non specificati dettagliatamente: • antistaticità • assorbimento di energia del tacco • impermeabilità dinamica del tomaio • suola con tasselli • fodera posteriore • tomaio idrorepellente • lamina o tessuto antiforo. Vi indichiamo qui di seguito il significato della timbratura che potrete rilevare su

Conformity marking	Name of manufacturer			Date of manufacture
CE	U GROUP S.r.l.			05/2023
European standard	Protection class	Slip resistance requirement	Additional requirements	Product code
EN ISO 20345:2022	S3S	SR	HRO HI	00000 - XXX

In addition to the Basic Requirements there are others, as shown in the table below, each optional requirement indicated in the product marking corresponds to a specific protection against the associated risk. For further details please refer to the note for use.

PROTECTION CLASS SYMBOL		EN ISO 20345:2022														Requirements: EN ISO 20345:2022
		SB	S1	S2	S3	S3L	S3S	S4	S5	S5L	S5S	S6	S7	S7L	S7S	Minimum required values
	Closed heel area	0	X	X	X	X	X	X	X	X	X	X	X	X	X	Heel area must be closed
	Toe resistant to an impact of 200J	X	X	X	X	X	X	X	X	X	X	X	X	X	X

	Tip resistant to a compression of 15 kN	X	X	X	X	X	X	X	X	X	X	X	X	X	X

A	Antistatic footwear	0	X	X	X	X	X	X	X	X	X	X	X	X	X	Electrical resistance >100 kΩ and ≤1000 MΩ
E	Energy absorption in the heel area	0	X	X	X	X	X	X	X	X	X	X	X	X	X	Absorbed energy ≥20 J

FO	Sole hydrocarbon resistance	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Volume increase ≤12%

WPA	Water absorption and penetration of uppers	0	-	X	X	X	X	-	-	-	-	X	X	X	X	Absorption ≤30 Penetration ≤0.2 g

P	Resistance to perforation (with metal anti-puncture insert)	0	0	-	X	-	-	-	X	-	-	-	X	-	-	≥1100 N

PL	Resistance to perforation (with non-metallic anti-puncture insert)	0	0	-	-	X	-	-	-	X	-	-	-	X	-	A 1100 N no perforation

PS	Resistance to perforation (with PS-type non-metallic anti-puncture insert)	0	0	-	-	-	X	-	-	-	X	-	-	-	X	Average drilling force ≥1100 N Single drilling force ≥950 N

CI	Cold insulation of bottom	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Temperature drop after 30 minutes at -17 °C ≤10 °C

HI	Heat insulation of bottom	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Temperature rise after 30 minutes at 150 °C ≤22 °C

C	Partially conductive footwear	0	-	-	-	-	-	-	-	-	-	-	-	-	-	Electrical resistance ≤100 kΩ
HRO	Sole contact heat resistance	0	0	0	0	0	0	0	0	0	0	0	0	0	0	No signs of melting and/or breakage

AN	Malleolus protection	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Transmitted energy: average value ≤10 kN single value ≤15 kN

WR	Water resistance of the complete shoe	0	0	-	-	-	-	-	-	-	-	X	X	X	X	No water penetration

M	Metatarsal protection	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Residual height after impact: size 41 and 42 ≥40.0 mm

CR	Shear resistance	0	0	-	0	0	0	-	0	0	0	-	0	0	0	Shear strength index ≥2.5
SR	Slip resistance (ceramic top coated with glycerine)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	≥0.19 (heel 7°) ≥0,22 (heel 7°)

LG	Footwear suitable for ladders	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Famice abrasion resistance and famice dimensions suitable for use on ladders

SC	Toe cap abrasion resistance	0	0	0	0	0	0	0	0	0	0	0	0	0	0	No through holes after 8000 abrasion cycles

PROTECTION CLASS SYMBOL		EN ISO 20347:2022														Requirements: EN ISO 20347:2022
		SB	S1	S2	S3	S3L	S3S	S4	S5	S5L	S5S	S6	S7	S7L	S7S	Minimum required values
	Closed heel area	0	X	X	X	X	X	X	X	X	X	X	X	X	X	Heel area must be closed
	Toe resistant to an impact of 200J	-	-	-	-	-	-	-	-	-	-	-	-	-	-

	Toe resistant to a compression of 15 kN	-	-	-	-	-	-	-	-	-	-	-	-	-	-

A	Antistatic footwear	0	X	X	X	X	X	X	X	X	X	X	X	X	X	Electrical resistance >100 kΩ and ≤1000 MΩ
E	Energy absorption in the heel area	0	X	X	X	X	X	X	X	X	X	X	X	X	X	Absorbed energy ≥20 J

FO	Sole hydrocarbon resistance	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Volume increase ≤12%

WPA	Water absorption and penetration of uppers	0	-	X	X	X	X	-	-	-	-	X	X	X	X	Absorption ≤30 Penetration ≤0.2 g

P	Resistance to perforation (with metal anti-puncture insert)	0	0	-	X	-	-	-	X	-	-	-	X	-	-	≥1100 N

PL	Resistance to perforation (with non-metallic anti-puncture insert)	0	0	-	-	X	-	-	-	X	-	-	-	X	-	A 1100 N no perforation

PS	Resistance to perforation (with PS-type non-metallic anti-puncture insert)	0	0	-	-	-	X	-	-	-	X	-	-	-	X	Average drilling force ≥1100 N
																Single drilling force ≥950 N
CI	Cold insulation of bottom	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Temperature drop after 30 minutes at -17 °C ≤10 °C

HI	Heat insulation of bottom	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Temperature rise after 30 minutes at 150 °C ≤22 °C

C	Partially conductive footwear	0	-	-	-	-	-	-	-	-	-	-	-	-	-	Electrical resistance ≤100 kΩ
HRO	Sole contact heat resistance	0	0	0	0	0	0	0	0	0	0	0	0	0	0	No signs of melting and/or breakage

AN	Malleolus protection	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Transmitted energy: average value ≤10 kN single value ≤15 kN

WR	Water resistance of the complete shoe	0	0	-	-	-	-	-	-	-	-	X	X	X	X	No water penetration

M	Metatarsal protection	-	-	-	-	-	-	-	-	-	-	-	-	-	-	Residual height after impact size 41 and 42 ≥40.0 mm

CR	Shear resistance	0	0	-	0	0	0	-	0	0	0	-	0	0	0	Shear strength index ≥2.5
SR	Slip resistance (ceramic top coated with glycerine)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	≥0.19 (heel 7°) ≥0,22 (heel 7°)

LG	Footwear suitable for ladders	0	0	0	0	0	0	0	0	0	0	0	0	0	0	Famice abrasion resistance and famice dimensions suitable for use on ladders

SC	Toe cap abrasion resistance	0	0	0	0	0	0	0	0	0	0	0	0	0	0	No through holes after 8000 abrasion cycles

X	= Mandatory requirement for the indicated category
0	= Optional requirement added to the mandatory ones, if indicated on the marking
-	= Not mandatory requirement, check footwear marking

The following information is indicated under the sole: - fit. On the gusset or tongue of the shoe are: - the manufacturer's mark - the article code - the month and year of manufacture - the following markings: see CEconformity marking

SYMBOL	Test conditions	Coefficient of friction
	Condition A (heel slip inclined 7° towards the front)	≥0,31
	Condition B (heel slip inclined 7° backwards)	≥0,36

SYMBOL	Test conditions	Coefficient of friction
SR	Condition A (heel slip inclined 7° towards the front)	≥0,19
	Condition B (heel slip inclined 7° backwards)	≥0,22

The slip resistance of the footwear has been tested under laboratory conditions. Additional tests by the user in workplace conditions may provide additional information. Field testing of footwear to assess suitability for the job is recommended.

Safety footwear EN ISO 20345:2022+A1:2024 and EN ISO 20347:2022+A1:2024: Work shoes conforming to this standard and marked '+A1:2024' certify compliance with the latest technical specifications relating to upper breathability. This update, identified by Addendum A1:2024, introduces updated requirements and test methods aimed at ensuring improved performance in terms of comfort and moisture management for the user.

In particular, footwear marked '+A1:2024' has passed upper breathability tests that verify:
- The water vapour permeability, measured in mg/cm²h, according to updated test methods.
- The water vapour coefficient, which evaluates the ability of the upper material to disperse sweat, according to updated test methods.

The inclusion of this marking ensures that the manufacturer has made the necessary changes to the production process and materials used, in range with the latest breathability standards.

Notified bodies issuing certificates of conformity for work shoes are required to verify compliance with the above.

Marking requirements \| distinguishing footwear classified 'S' (EN ISO 20345:2022 and EN ISO 20347:2022)
SB	BASIC Requirements	Class
S1	Closed heel area + A + E	I
S2	S1 + WPA
S3	S2 + Raised sole + P
S3L	S2 + Relief sole + PL
S3S	S2 + WR
S6	S3 + WR
S7	S3L + WR
S7L	S3S + WR
S7S	Closed heel area + A + E
S4	S4 + Raised sole + P	II
S5	S4 + Raised sole + PL
S5L	S4 + sole with relief + PS
SBH	/	Hybrid footwear

ESD: dissipative footwear, SUITABLE FOR EPA ENVIRONMENTS

These shoes are designed to allow the continuous and controlled dissipation, within safe values, of the electrostatic charges present on the operator's body in order to protect electronic devices sensitive to electrostatic phenomena. The recommended value of the resistance to earth "EPA" is ≤ a 3.5x107Ω. As the measurements are carried out with the footwear worn by the user, the values obtained may vary considerably from person to person and according to environmental conditions as the electrical resistance of the human body is variable.

SOLE SLIP RESISTANCE EN ISO 20345:2022 and EN ISO 20347:2022
Marking symbol (SR)	Conditions required by the standard
Slip resistance on ceramic tiles with water + NALS	≥ 0.19 footwear inclined towards the heel of 7°. ≥ 0,22 footwear inclined towards the heel of 7°.
Slipresistance on ceramic tile with glycerine	≥ 0.31 shoe inclined towards the heel by 7°. ≥ 0,36 shoe sloping towards the heel of 7°.

THE MEANING OF EUROPEAN STANDARDS
EN ISO 20349:2010	Small splashes of molten metal such as those produced during welding operations and related processes
EN ISO 20344:2021	Test methodology and general requirements
EN ISO 20345:2022	Specification of safety footwear with toe cap resistance to 200 J.
EN ISO 20346:2022	Specification of safety footwear with toecap resistance to 100 J.
EN ISO 20347:2022	Specification of "work shoes" or "professional". No specific toecap resistance.

For more information: info@u-power.it

European Standards

Guidance on EN ISO 20345:2022 and EN ISO 20347:2022

Most important and significant features in EN ISO 20345:2022

SYMBOL

SYMBOL

SR

Marking requirements | distinguishing footwear classified 'S' (EN ISO 20345:2022 and EN ISO 20347:2022)

ESD: dissipative footwear, SUITABLE FOR EPA ENVIRONMENTS

SOLE SLIP RESISTANCE
EN ISO 20345:2022 and EN ISO 20347:2022

THE MEANING OF EUROPEAN STANDARDS

European Standards

Guidance on EN ISO 20345:2022 and EN ISO 20347:2022

Most important and significant features in EN ISO 20345:2022

SYMBOL

SYMBOL

SR

Marking requirements | distinguishing footwear classified 'S' (EN ISO 20345:2022 and EN ISO 20347:2022)

ESD: dissipative footwear, SUITABLE FOR EPA ENVIRONMENTS

SOLE SLIP RESISTANCEEN ISO 20345:2022 and EN ISO 20347:2022

THE MEANING OF EUROPEAN STANDARDS

SOLE SLIP RESISTANCE
EN ISO 20345:2022 and EN ISO 20347:2022