LS 9 940-03 - Linde Engineering

LINDE STANDARD
S
List off hazardo
ous work
LS 940-03
9
Page 1 of
o 4
Contentts
1 2 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Scope
S
.................................................................2 Normative
N
re
eferences ........................................2 Definitions
D
...........................................................2 Hot
H work .............................................................2 Working
W
at h eight ..............................................2 Entering
E
or w
working in confined space
es,
excavating
e
o r tunnelling ....................................3 Working
W
with
h hazardous materials ....................3 Working
W
on liive systems and electrica
al
hazards
h
...............................................................3 Pressure
P
tes ting ................................................3 Lifting
L
..................................................................3 Working
W
with
h ionising rad
diation..........................4 Other
O
hazard
dous work .......................................4 Remarks o
on the curren
nt issue:
Revision: In
n Para 3.6 ind
dication of vo
olume in ft. cchanged; editorially revise
ed.
Previous isssues: 09.2011, 09.2012, 07.2014
Responsible
e functional unit(s)
u
for the
e technical ccontent: DH
X
04
12.2014
X
03
07.2014
X
02
09.2012
Status
Issue
Date
© Linde AG
Follner,
F
DH
LEHQ-DH
L
/
Follner
F
LEHQ-QHSE
L
E/
Follner
F
Gransee, DH
LEHQ-DH
H/
Gransee
LEHQ-QH
HSE /
Dr. Leime
er
Schmitt, DQ
LEHQ-D
DQ /
Schmitt
LEHQ-E
ENM1 /
Schmitt
Prepared
P
Reviewed
Approved
d
LS 940-03 (EN)
e AG, Enginee
ering Division
Linde
1
Issue 04/12.2014
LS 9400-03
Page 2 of
o 4
Scope
This Linde S
Standard (LS
S) defines wh
hich work is ccategorised as hazardou
us and thereffore requires the application
of the permit to work sysstem.
NOTE As a
an alternative the permit to work proccess can be substituted by
b a comparaable safe "standard
ope
erating proce
edure" for deffined frequen
ntly repeating
g hazardous works.
This LS app
plies globallyy to all operattions carried out by entities of the Linde Engineerring Division or their
contractors..
2
Normative references
This LS con
ntains provisiions which, through dated
d references in this text, cconstitute pro
ovisions of
d or undated
other publiccations. The normative re
eferences are
e cited at the
e respective place
p
in the ttext and the publications
are listed be
elow. For datted reference
es, subseque
ent amendm
ments to, or re
evisions of, aany of these publications do
not apply. F
For undated references,
r
the issues va
alid at the efffective date of
o contract shhall apply.
Regulation (EC) No 127
72/2008
EN 60825-1
1
3
Definitions
3.1
Ho
ot work
Regulation
R
o n the classification, labelling and pacckaging of su
ubstances an
nd
mixtures
m
Safety
S
of lase
er products – Part 1: Equ
uipment classsification and
d requiremen
nts
Work with a
an increased risk of fire or explosion, such as weld
ding, grinding
g, abrasive ccutting, brazing, or the likke
At LE entity
y sites not applicable
a
fo
or:

activities at work areas, that have
h
a perma
anent approv
val for hot wo
ork (e.g. weldding workpla
aces or
worksshops), or

activities outside these areas,, when a horrizontal distan
nce of at leas
st 10 m (USA
A: 35 ft.) and
d a vertical
distan
nce of at leasst 20 m (USA
A: 65 ft.) dow
wnwards and
d 4 m (USA: 13 ft.) upwarrds is kept fro
om any
flamm
mable material.

the use of burnerss in laboratory and testin
ng setups, if HSE
H
risk ass
sessments, ooperating instructions and
d/or
opera
ations manua
als are in pla
ace.
At project c
construction
n sites only applicable for areas pre
esenting an increased rissk of fire or explosion
e
(e.g. through the presen
nce of flammable materia
als or an explosive atmos
sphere)
3.2
W
Working at height
h

Workk with a possible height of fall greater than 2 m (USA: 6 ft.), su
uch as work oon roofs, work on ladderss
when
n standing hig
gher than 2 m (USA: 6 ft..), work on platforms,
p
the
e erection of steel structures, the
installlation and re
emoval of gra
atings or worrking in susp
pended work baskets or pplatforms.

Workking above water
w
or any other
o
surface
es with the ha
azard of drow
wning
Not applica
able for the following
f
acttivities that a re usually co
overed by specific regulattions and op
perational
instructions and that usu
ually do not require
r
addittional protecttive measure
es against fallling:

ng and disma
antling scaffo
olds,
erecting, modifyin

d scaffolds, mobile
m
scaffo
olds or work platforms (e..g. green taggged)
work on approved

k platforms
work on mobile elevated work
© Linde AG
LS 940-03 (EN)
e AG, Enginee
ering Division
Linde
3.3
Issue 04/12.2014
LS 9400-03
Page 3 of
o 4
En
ntering or working
w
in
n confined s
spaces, ex
xcavating or
o tunnellin
ng
Entering or working in enclosed
e
confined spacess that are nott designed fo
or continuouss employee occupancy,
o
large enoug
gh and so configured thatt an employe
ee can bodily
y enter and perform
p
workk inside (e.g. containers,
storage tankks, silos, pipelines, windo
owless cellarrs, or furnace
es) and in wh
hich exceptioonal hazards
s exist or can
n
emerge, succh as:

the potential form
mation of haza
ardous atmo
osphere,

nglement with fluids or grranulated sollids,
entan

electrrical hazardss,

structtures with en
ntrapping con
nfigurations,

limite
ed or restricte
ed means of entry and exxit, or

otherr severe heallth and safety
y hazards

urthe
ermore excavvating underg
ground, tunn elling work, and
a working in undergrouund excavations, as well as
excavvating, trenching, and wo
orking in exca
avation pits deeper
d
than 1.2 m (USA:: 4 ft.)
3.4
W
Working witth hazardou
us materia ls
Work with ccorrosive, exp
plosive, highly flammable
e, carcinogen
nic substances (categoriees 1 and 2 acc. to the
global harm
monized syste
em / GHS of the Regulatiion (EC) No 1272/2008), cryogenic suubstances, mutagenic,
m
reprotoxic, ttoxic or biolo
ogical substances (catego
ories 3 and 4 acc. to the GHS).
At LE entity
y sites not applicable
a
fo
or activities tthat are exec
cuted only by
y employees qualified and instructed in
the handling
g of hazardous substances and in wo
ork areas tha
at are specific
cally equippeed for the use
e of hazardo
ous
materials, e
e.g. laboratorries and facilities for rese
earch and dev
velopment.
3.5
W
Working on live system
ms and ele
ectrical haz
zards
Work on sysstems that are live or phy
ysically conn
nected to live
e systems tha
at are energi sed or isolatted during wo
ork:
a)
presssurised syste
ems (e.g. pne
eumatic, hyd
draulic),
b)
syste
ems containin
ng fluids with
h a low (< 0 °°C / < 32 °F) or a high tem
mperature (>
> 60 °C / > 14
40 °F),
c)
syste
ems containin
ng hazardous
s materials,
d)
syste
ems with storred hazardou
us mechanica
al energy,
e)
electrrical equipme
ent – not app
plicable for lo
ow voltage work
w
at LE en
ntity sites carrried out by qualified
q
and
locally authorised
d electricians
Furthermore
e work in a distance
d
of le
ess than 5 m (USA: 16 ft.) to uninsulated overheadd power lines (also
applicable ffor lifting worrk)
a) – d) At L
LE entity site
es not applic
cable for:

testin
ng setups in facilities
f
for research
r
and
d developme
ent, which are
e built and ussed based on a test speccific
risk a
assessment by
b qualified and
a instructe
ed employees
s

the in
ntended and regular operration of gas installations
s and installations for the supply with gaseous or
liquid
d substancess from station
nary tanks.
3.6
Prressure tes
sting
Hydraulic prressure testing (V > 100 m³; USA: V > 3531 ft³), and
a pneumattic pressure ttesting
At LE entity
y sites not applicable
a
fo
or dedicated work areas that have be
een specificaally risk asses
ssed with all
necessary ccontrols being implementted, operatin g instructions being displayed, and w
where the wo
ork is being
carried out b
by authorised employees
s only.
3.7
Liifting
Lifting with m
mobile or tow
wer cranes when
w
the liftss exceed 15 t or 85% of th
he crane cappacity by load
d chart, or
complex liftiing (i.e. involving more th
han one cran
ne at the sam
me time, lifting over live eequipment or over active
work areas,, such as office buildings or public acccess ways)
© Linde AG
LS 940-03 (EN)
e AG, Enginee
ering Division
Linde
3.8
Issue 04/12.2014
LS 9400-03
Page 4 of
o 4
W
Working witth ionising radiation
Work involvving ionising radiation tha
at requires th e definition of
o dedicated areas with sspecific safety regulationss.
At LE entity
y sites not applicable
a
fo
or dedicated work areas that have be
een specificaally risk asses
ssed with all
necessary ccontrols and checks imple
emented, op
perating instrructions being
g prepared, aand work during normal
operations b
being carried
d out by qualified and insstructed employees only.
At project c
construction
n sites not applicable
a
fo
or handheld X-ray fluores
scence analyysers
3.9
Other hazard
dous work

Workking with inerrt gases, unle
ess being ap
pplied as shie
elding gas for welding opperations (e.g
g. nitrogen)
The e
exceptions to
o section 3.4, 3.5 and 3.6
6 are also ap
pplicable.

Workking with lase
er of classes 3 and 4 in a
accordance with
w EN 6082
25-1, if not enntirely contained

Workk requiring the removal orr deactivation
n of critical safety
s
installa
ations, such aas gas detec
ction, fire
fightin
ng systems, etc.
At LE
E entity sites
s not applicable, if defin
ned processe
es for the deffinition and im
mplementatio
on of
necesssary compe
ensating conttrols are in p
place.

Blasting operation
ns

n use
Workking in areas in which rail tracks are in
© Linde AG
LS 940-03 (EN)

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