Description
INTERNATIONAL STANDARD
ISO 13857 Second edition 2019-10
Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs Sécurité des machines — Distances de sécurité empêchant les membres supérieurs et inférieurs d'atteindre les zones dangereuses
Reference number ISO 13857:2019(E)
© ISO 2019
ISO 13857:2019(E)
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ISO 13857:2019(E)
Contents Foreword ........................................................................................................................................................................................................................................ iv Introduction..................................................................................................................................................................................................................................v 1
Scope ................................................................................................................................................................................................................................. 1
2
Normative references ...................................................................................................................................................................................... 1 ..................................................................................................................................................................................... 1
4
Safety distances to prevent reach or access by upper and lower limbs ...................................................... 2 ........................................................................................................................................................................................................... 2 ........................................................................................................................................................................ 2 ................................................................................................................................................................ 2 .................................................................................................. 3 .......................................................................................................................................................... 3 ............................................................................................................... .............................................................................................................................................................. 6 .................................................................................................................................... 8 .............................................. 10 ............................................................................................... 11 ................................................................................................................................. 13
Annex A
Use of Tables 1 and 2 with intermediate values.......................................................................14
Annex B
Distances to impede free access by lower limbs ......................................................................18
Bibliography .............................................................................................................................................................................................................................20
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ISO 13857:2019(E)
Foreword
www.iso.org/directives).
www.iso
).
www.iso
.org/iso/foreword.html. Safety of machinery. www.iso.org/members.html.
iv
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ISO 13857:2019(E)
Introduction type-A standards b) type-B standards
c)
type-C standards
process of this document.
precedence.
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ISO 13857:2019(E)
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© ISO 2019 – All rights reserved
INTERNATIONAL STANDARD
ISO 13857:2019(E)
Safety of machinery — Safety distances to prevent hazard zones being reached by upper and lower limbs 1 Scope
limbs (see
).
).
2 Normative references
Safety of machinery — General principles for design — Risk assessment and risk reduction
ISO 12100:2010
https://www.iso.org/obp http://www © ISO 2019 – All rights reserved
.org/ 1
ISO 13857:2019(E)
3.1 protective structure
3.2 reference plane
3.3 safety distance sr
4 Safety distances to prevent reach or access by upper and lower limbs 4.1 General 4.1.1
Assumptions
4.1.2
Risk assessment
4.1.2.1
General
sr 4.1.2.2
Selection of safety distances when reaching upwards and reaching over
protective structures (see
2
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ISO 13857:2019(E)
or
4.2 Safety distances to prevent access by upper limbs 4.2.1
Reaching upwards
4.2.1.1
General
Figure 1 4.2.1.2
Height of the hazard zone h h
Key 1 2 h
Figure 1 — Reaching upwards
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ISO 13857:2019(E)
4.2.2
Reaching over protective structures
4.2.2.1
General
Figure 2
Key 1 2 hh hps height of protective structure sh
Figure 2 — Reaching over protective structure 2
hh hps or sh
4.2.2.2
Values
Figure 2). NOTE
4
.
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ISO 13857:2019(E)
Table 1 — Reaching over protective structures — Only minor injuries along with a low probability of occurrence Dimensions in millimetres hps, height of protective structure hh, height of 1 000 1 200 1 600 1 800 2 000 2 200 2 500 the point of the hazard zone which is nearest to sh, horizontal safety distance of the point of the hazard zone which is nearest to the area of upper limb reach the area of upper limb reach 2 500
0
0
0
0
0
0
0
0
0
100
100
100
100
100
100
100
100
0
2 200
600
600
500
500
350
250
0
0
2 000
1 100
900
700
600
500
350
0
0
0
1 800
1 100
1 000
900
900
600
0
0
0
0
1 600
1 300
1 000
900
900
500
0
0
0
0
1 300
1 000
900
800
100
0
0
0
0
1 200
1 000
900
500
0
0
0
0
0
1 000
1 000
900
300
0
0
0
0
0
800
1 300
900
600
0
0
0
0
0
0
600
1 200
500
0
0
0
0
0
0
0
1 200
300
0
0
0
0
0
0
0
200
1 100
200
0
0
0
0
0
0
0
0
1 100
200
0
0
0
0
0
0
0
Figure 2). NOTE
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ISO 13857:2019(E)
Table 2 — Reaching over protective structures Dimensions in millimetres hps, height of protective structure hh, height of 1 000 1 200 1 600 1 800 2 000 2 200 2 500 2 700 the point of the hazard zone which is nearest to sh horizontal safety distance of the point of the hazard zone which is nearest to the area of upper limb reach the area of upper limb reach 2 700
0
0
0
0
0
0
2 600
900
800
700
600
600
1 100
1 000
900
800
700
1 200
1 000
900
1 300
1 100
900
2 200
1 300
2 000
0
0
0
0
500
300
100
0
600
300
100
0
800
600
300
0
0
800
600
0
0
0
1 800
1 500
1 100
900
800
600
0
0
0
0
1 600
1 500
1 100
900
800
500
0
0
0
0
1 500
1 100
900
800
0
0
0
0
0
1 200
1 500
1 100
900
700
0
0
0
0
0
1 000
1 500
1 000
800
0
0
0
0
0
0
800
1 500
1 300
900
600
0
0
0
0
0
0
1 300
800
0
0
0
0
0
0
0
0
0
0
0
0
0
0
600
1 200 200
1 200
900
0
0
0
0
0
0
0
0
0
1 100
500
0
0
0
0
0
0
0
0
. b
c
4.2.3
6
Reaching around
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ISO 13857:2019(E)
Table 3 — Reaching around with limitation of movement Dimensions in millimetres Limitation of movement
Safety distance to hazard zone, sr
Illustration
Arm supported up to elbow
Arm supported up to wrist
Key A sr opening.
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ISO 13857:2019(E)
4.2.4
Reaching through openings
4.2.4.1
Reaching through regular openings — Persons of 14 years of age and above sr e
Table 4 — Reaching through regular openings — Persons of 14 years of age and above Dimensions in millimetres Part of body
Illustration
Opening
Safety distance to hazard zone, sr Slot
Fingertip
Square
Round
e
e Finger up to
e
e
e
e
e
Arm up to
e
shoulder e
4.2.4.2
8
Reaching through regular openings — Persons of 3 years of age and above
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ISO 13857:2019(E)
e
Table 5 — Reaching through regular openings — Persons of 3 years of age and above Dimensions in millimetres Part of body
Illustration
Opening
Safety distance to hazard zone, sr Slot
Fingertip
Square
Round
e
e Finger up to
e
e
e
e
e
Arm up to shoulder
e
4.2.4.3
Openings of irregular shape
Figures 3
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ISO 13857:2019(E)
b) Using
a)
b)
Key 1 2 3
Figure 3 — Openings of irregular shape 4.2.5 In
Effect of additional protective structures on safety distances to 5 6.
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ISO 13857:2019(E)
Table 6 — Reaching around with additional protective structures Dimensions in millimetres Safety distance to hazard zone, sr
Limitation of movement
Illustration
sr1 tures — one permits move-
-
sr2 sr3
movement from the elbow.
sr3 -
-
s
Key sr
4.3 Safety distances to prevent access by lower limbs to 6 for the upper limbs. Where it is
e
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ISO 13857:2019(E)
. Table 7 — Reaching through openings of regular shape by lower limbs Dimensions in millimetres Part of lower limb
Illustration
Safety distance to hazard zone, sr
Opening
e
Slot
Square or round
0
0
Toe tip e
Toe
0
e
e Foot b
e
c
e
c
e
b
c
Leg (toe tip to crotch)
c
e
b c
NOTE Slot openings with e
12
e
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ISO 13857:2019(E)
4.4 Consideration of whole body access e
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e
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ISO 13857:2019(E)
Annex A Use of Tables 1 and 2 with intermediate values
is used.
hps
hh
sh.
Assumptions: hh sh hps For hh,
hh sh = 800 mm is selected. hps
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ISO 13857:2019(E)
Dimensions in millimetres
b c
.
Figure A.1 — Example 1 — Table 2
sh
hh
hps.
Assumptions: hh hps sh hps hh
hps = 1 600 mm. hh sh is 1 000 mm.
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ISO 13857:2019(E)
Dimensions in millimetres
b c
.
Figure A.2 — Example 2 — Table 2
hh
hps
sh .
Assumptions: sh hps hh hps
hps = 1 800 mm.
sh
Figure A.3. hh
16
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ISO 13857:2019(E)
Dimensions in millimetres
b c
.
d e
Not possible.
Figure A.3 — Example 3 — Table 2
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ISO 13857:2019(E)
Annex B Distances to impede free access by lower limbs
h
).
Case 1
Case 2
Case 3
Key 1 2 3 protective structure h height up to protective structure l
Figure B.1 — Impeding free movement under protective structures
h h should be used.
18
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ISO 13857:2019(E)
Table B.1 — Distances where access of the lower limbs is restricted Dimensions in millimetres Height
Distance
h
l
up to protective structure
Case 1
Case 2
Case 3
h h h h h NOTE Slot openings with e
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e
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ISO 13857:2019(E)
Bibliography Basic human body measurements for technological design Ergonomics of the thermal environment — Methods for the assessment of human responses to contact with surfaces — Part 1: Hot surfaces Safety of machinery — Positioning of safeguards with respect to the approach speeds of parts of the human body Safety of machinery — Interlocking devices associated with guards — Principles for design and selection Safety of machinery — Guards — General requirements for the design and construction Safety of machinery — Risk assessment — Part 2: Practical guidance and
machinery
Safety of machinery — Anthropometric requirements for the design of workstations at
unload stations
20
Robotics — Safety design for industrial robot systems — Part 2: Manual load/
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