Fluids for electrotechnical applications - Standard for the inventory control, management, decontamination and/or disposal of electrical equipment and insulating liquids containing PCBs

D145/093: CLC/BTTF 116-1 converted into CLC/TC 10 * D134/030 (taken by majority): BTTF 116-1 to review GB comments in order to either revise draft prepared for vote, or stop project * D135/C151: NWI as CLC/prTR approved (pr=22541)

Flüssigkeiten für elektrotechnische Anwendungen - Norm für Bestandsliste, Überwachung, Handhabung, Dekontaminierung und/oder Entsorgung von PCBs enthaltenden elektrischen Betriebsmitteln und Isolierflüssigkeiten

Fluides pour applications électrotechniques - Norme pour la vérification de l'inventaire, la gestion, la décontamination et/ou l'élimination de l'équipement électrique et des liquides isolants contenant du polychlorobiphényle (PCB)

Tekočine za uporabo v elektrotehniki - Standard za materialno poslovanje, upravljanje, dekontaminacijo oziroma odlaganje električne opreme in izolacijskih tekočin, ki vsebujejo PCB

General Information

Status
Not Published
Current Stage
4099 - Decision to launch vote
Due Date
08-Jan-2009
Completion Date
08-Jan-2009

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SLOVENSKI STANDARD
oSIST prEN 50503:2007
01-december-2007
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XSUDYOMDQMHGHNRQWDPLQDFLMRR]LURPDRGODJDQMHHOHNWULþQHRSUHPHLQL]RODFLMVNLK
WHNRþLQNLYVHEXMHMR3&%

Fluids for electrotechnical applications - Standard for the inventory control, management,

decontamination and/or disposal of electrical equipment and insulating liquids containing

PCBs
Flüssigkeiten für elektrotechnische Anwendungen - Norm für Bestandsliste,
Überwachung, Handhabung, Dekontaminierung und/oder Entsorgung von PCBs
enthaltenden elektrischen Betriebsmitteln und Isolierflüssigkeiten

Fluides pour applications électrotechniques - Norme pour la vérification de l'inventaire, la

gestion, la décontamination et/ou l'élimination de l'équipement électrique et des liquides

isolants contenant du polychlorobiphényle (PCB)
Ta slovenski standard je istoveten z: prEN 50503
ICS:
29.040.01 Izolacijski fluidi na splošno Insulating fluids in general
oSIST prEN 50503:2007 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 50503:2007
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oSIST prEN 50503:2007
DRAFT
EUROPEAN STANDARD
prEN 50503
NORME EUROPÉENNE
December 2006
EUROPÄISCHE NORM
ICS
English version
Fluids for electrotechnical applications -
Standard for the inventory control, management, decontamination and/or
disposal of electrical equipment and insulating liquids containing PCBs

Fluides pour applications électrotechniques - Flüssigkeiten für elektrotechnische

Norme pour la vérification de l'inventaire, la Anwendungen -

gestion, la décontamination et/ou l'élimination Norm für Bestandsliste, Überwachung,

de l'équipement électrique et des liquides Handhabung, Dekontaminierung und/oder
isolants contenant du polychlorobiphényle Entsorgung von PCBs enthaltenden
(PCB) elektrischen Betriebsmitteln und
Isolierflüssigkeiten

This draft European Standard is submitted to CENELEC members for CENELEC enquiry.

Deadline for CENELEC: 2007-05-04.
It has been drawn up by CLC/BTTF 116-1.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national

standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).

A version in any other language made by translation under the responsibility of a CENELEC member into its own

language and notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and the United Kingdom.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to

change without notice and shall not be referred to as a European Standard.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Project: 15849 Ref. No. prEN 50503:2006 E
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Foreword
This draft European Standard has been prepared by CENELEC BTTF 116-1 ‘Fluids for
electrotechnical applications’. It is submitted to CENELEC enquiry.
___________
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Contents

Introduction..................................................................................................................................... 5

1 Scope..................................................................................................................................... 6

2 Normative references............................................................................................................. 6

3 Definitions .............................................................................................................................. 8

4 Inventory and communication............................................................................................... 11

4.1 PCBs for inventory purposes ....................................................................................... 11

4.2 Equipment containing PCBs for inventory purposes .................................................... 12

4.3 Sampling of insulating liquids....................................................................................... 13

4.4 Analytical determinations of PCBs............................................................................... 13

4.5 Communication and updating ...................................................................................... 13

5 Labelling............................................................................................................................... 14

5.1 Labelling of equipment containing PCBs...................................................................... 14

5.2 Labelling of equipments after decontamination............................................................ 14

6 Managing safety................................................................................................................... 15

6.1 General prescriptions................................................................................................... 15

6.2 Personal protection devices......................................................................................... 16

6.3 Handling and transportation......................................................................................... 16

6.4 Actions in case of accidents......................................................................................... 17

6.5 Fires............................................................................................................................ 18

7 Operation and maintenance ................................................................................................. 18

7.1 General criteria for the evaluation of functional degradation ........................................ 19

7.2 Type of monitoring and frequency................................................................................ 20

7.3 Maintenance interventions........................................................................................... 23

7.4 Field screening tests.................................................................................................... 24

7.5 Maintenance report...................................................................................................... 24

7.6 Qualification of operators............................................................................................. 24

8 Decontamination .................................................................................................................. 25

8.1 Warnings..................................................................................................................... 25

8.2 General principles........................................................................................................ 25

8.3 Decontamination obligations........................................................................................26

8.4 Decontamination methodologies and techniques for mineral insulating oil................... 27

8.5 Decontamination methodologies and techniques for other insulating liquids................ 28

8.6 Fulfilments after the decontamination .......................................................................... 28

8.7 Qualification of operators............................................................................................. 29

9 End of use............................................................................................................................ 29

10 Disposal ............................................................................................................................... 29

10.1 Obligations and prohibitions......................................................................................... 29

10.2 Methodologies and techniques for the decontamination and disposal of waste............ 29

Annex A (informative) List of PCBs manufacturers and commercial names .................................. 31

Annex B (informative) Example of test report for PCBs inventory.................................................. 33

Annex C (informative) Labels for equipments containing PCBs..................................................... 34

Annex D (informative) Labels for decontaminated transformers.................................................... 35

Annex E (informative) Communication forms - Equipment/Container card .................................... 36

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Annex F (informative) Communication forms - Registration card................................................... 37

Annex G (informative) Communication forms - Decontamination/Disposal card............................ 38

Annex H (informative) Equivalent Toxicity (TEF) for commercial mixtures of PCBs....................... 39

Annex I (informative) Aroclor mixtures composition and TEQs...................................................... 40

Annex J (informative) Typical PCBs clean up levels for surfaces and soil contamination .............. 41

Bibliography.................................................................................................................................. 42

Table 1 - PCBs family ................................................................................................................... 12

Table 2 - Test methods for mineral oils in service (IEC 60422) ..................................................... 21

Table 3 - Additional test methods for PCB insulating liquids of power and strategic transformers . 21

Table 4 - Additional test methods for Askarel insulated equipment ............................................... 22

Table 5 - Recommended types and frequency of tests and inspection.......................................... 23

Table 6 - Time deadlines for the decontamination and/or disposal of PCBs.................................. 27

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Introduction

Insulating liquids with PCBs bases (Askarels) or contaminated by PCBs that might be currently in

use in electrical equipment in the generation, transmission, distribution and use of electric energy.

Polychlorinated biphenyls (PCBs) are a mixture of 209 possible congeners (as defined by

EN 61619). Such compounds of a synthetic origin, have been produced and used in various

commercial mixtures at an international level since 1930 (see Annex A). The chemical stability and

relative non flammability features of PCBs created a decisive technological innovation to the point

that a considerable use was generated by the electrotechnical industry.

The same functional features of these substances determined critical incidences of an

environmental character: PCBs are, in fact, classified as hazardous and persistent substances in

the environment, bio-accumulable along the food chain.

It is recognised that oil-filled electrical equipment may have been contaminated by PCBs either

during manufacture or maintenance operations using oils which have been contaminated with

PCBs.

Insulating liquids and equipment containing insulating liquids are classified, respectively, “PCBs”

and “Equipment containing PCBs” when the total concentration of Polychlorinated biphenyls

(209 possible congeners) and correlated compounds PCTs (Polychlorinated terphenyls-

8 557 possible congeners) and PCBTs (Polychlorinated benzyltoluenes-thousands of possible

congeners) present in the insulating liquids exceeds the limits prescribed by current legislation for

the single matrices or destinations (equipment and insulating liquids in operation, waste, used oils,

fuel oils, etc.).

During their life cycle, systems, equipment and insulating liquids in operation can degrade faster, if

not properly managed and maintained, inducing failures that could cause, under limited

circumstances, incidents having a significant environmental impact, that can be correlated to the

specific conditions of the settlement and the site. Thus, during their service life, equipment

containing PCBs should be subject to measures capable of preventing and/or mitigating

degradation processes and the spillage of PCBs, in accordance with Directive 96/59/EC, to ensure

the protection of workers, public health and the environment, as well as complying with the

prescriptions of the Stockholm Convention entered into force on 2004-05-17.

Starting from the eighties, PCBs have been subject to prohibitions and limitations for the marketing

and use: the recent Council Directives and Commission Decisions introduced new obligations for

the inventory, control, management, decontamination and/or disposal of electrical equipment and

insulating liquid containing PCBs, within 2010.
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1 Scope

The scope of this European Standard is to provide operational procedures for the activities of

inventory, control, management, decontamination and/or disposal of equipment and containers

with insulating liquid containing PCBs, in compliance with the Council Directives (96/59/EC,

96/61/EC), Commission Decision (2001/68/EC), and/or with appropriate national or local

legislation.

This European Standard is addressed, in particular, toward the management of insulating liquids

and it has been developed in accordance with the following motivating principles:

a) reduction of risks for workers, public health and the environment, deriving from troubles or

failures of the equipment that could originate fires or the spill of hazardous and persistent

products;

b) implementation of the “Best Available Techniques” and methodologies available for safety,

while taking into account the criteria of the surroundings, self-sufficiency and functional

recovery;

c) technical feasibility of the activities recommended or imposed by current legislation, within the

prescribed time schedules, taking into account the economic feasibility as well.

WARNING: For those CENELEC countries in which the European Directives do not apply, this

European Standard has an informative purpose only.
2 Normative references

The following referenced documents are indispensable for the application of this document. For

dated references, only the edition cited applies. For undated references, the latest edition of the

referenced document (including any amendments) applies.
EN 12766-1 Petroleum products and used oils – Determination of PCBs and
related products – Part 1: Separation and determination of
selected PCB congeners by gas chromatography (GC) using an
electron capture detector (ECD)
EN 12766-2 Petroleum products and used oils – Determination of PCBs and
related products – Part 2: Calculation of polychlorinated biphenyl
(PCB) content
EN 12766-3 Petroleum products and used oils – Determination of PCBs and
related products – Part 3: Determination and quantification of
polychlorinated terphenyls (PCT) and polychlorinated benzyl
toluenes (PCBT) content by gas chromatography (GC) using an
electron capture detector (ECD)
EN 50195 Code of practice for the safe use of fully enclosed askarel-filled
electrical equipment
EN 50225 Code of practice for the safe use of fully enclosed oil-filled
electrical equipment which may be contaminated with PCBs
EN 60156 Insulating liquids - Determination of the breakdown voltage at
power frequency - Test method (IEC 60156)
EN 60247 Insulating liquids - Measurement of relative permittivity, dielectric
dissipation factor (tan d) and d.c. resistivity (IEC 60247)
EN 60567 Oil-filled electrical equipment - Sampling of gases and of oil for
analysis of free and dissolved gases - Guidance (IEC 60567)
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EN 60599 Mineral oil-impregnated electrical equipment in service - Guide
to the interpretation of dissolved and free gases analysis
(IEC 60599)
EN 60814 Insulating liquids - Oil-impregnated paper and pressboard -
Determination of water by automatic coulometric Karl Fischer
titration (IEC 60814)
EN 60970 Methods for counting and sizing particles in insulating liquids
(IEC 60970)
EN 61125 Unused hydrocarbon-based insulating liquids - Test methods for
evaluating the oxidation stability (IEC 61125)
EN 61198 Mineral insulating oils - Methods for the determination of
2-furfural and related compounds (IEC 61198)
EN 61619 Insulating liquids - Contamination by polychlorinated biphenyls
(PCBs) - Method of determination by capillary column gas
chromatography (IEC 61619)

EN 62021 series Insulating liquids - Determination of acidity (IEC 62021 series)

EN ISO 9001 2000 Quality management systems – Requirements (ISO 9001:2000)
EN ISO/IEC 17025 2000 General requirements for the competence of testing and
calibration laboratories (ISO/IEC 17025:1999)
IEC 60296 Fluids for electrotechnical applications - Unused mineral
insulating oils for transformers and switchgear
IEC 60422 Mineral insulating oils in electrical equipment - Supervision and
maintenance guidance
IEC 60588 series Askarels for transformers and capacitors
IEC 60666 Detection and determination of specified anti-oxidant additives in
insulating oils
IEC 60836 Specifications for unused silicon insulating liquids for
electrotechnical purposes
IEC 60944 Guide for the maintenance of silicone transformer liquids
IEC 61099 Specifications for unused synthetic organic esters for electrical
purposes
IEC 61203 Synthetic organic esters for electrical purposes - Guide for
maintenance of transformer esters in equipment

DIN 51353 Testing of insulating oils; detection of corrosive sulfur; silber strip

test
ISO 2049 Petroleum products - Determination of colour (ASTM scale)
ISO 2719 Determination of flash point - Pensky-Martens closed cup
method
ISO 3016 Petroleum products - Determination of pour point
ISO 3104 Petroleum products - Transparent and opaque liquids -
Determination of kinematic viscosity and calculation of dynamic
viscosity
ISO 3675 Crude petroleum and liquid petroleum products - Laboratory
determination of density - Hydrometer method
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ISO 5662 Petroleum products - Electrical insulating oils - Detection of
corrosive sulfur
ISO 12185 Crude petroleum and petroleum products - Determination of
density - Oscillating U-tube method
ASTM D 971 Standard test method for interfacial tension of oil against water
by the ring method
ASTM D 4951 1996 Standard test method for determination of additive elements in
lubricating oils by inductively coupled plasma atomic emission
spectrometry
ASTM D 5185 1997 Standard test method for determination of additive elements,
wear metals, and contaminants in used lubricating oils and
determination of selected elements in base oils by Inductively
Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
3 Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
askarel

synthetic, fireproof insulating liquid which, when decomposed by electrical arc, will evolve

predominantly non combustible gaseous mixtures
[IEV 212-07-08]

NOTE Askarels usually consists of polychlorinated biphenyls with or without the addition of polychlorinated benzenes.

3.2
Best Available Techniques (BAT)

most effective and advanced stage in the development of activities and their operation methods

which indicate the practical suitability of particular techniques for providing in principle the basis for

emission limit values designed to prevent and, where that is not practicable, generally to reduce

emissions and the impact on the environment as a whole:

• ‘techniques’ shall include both the technology used and the way in which the installation is

designed, built, maintained, operated and decommissioned;

• ‘available techniques’ shall mean those techniques developed on a scale which allows

implementation in the relevant industrial sector, under economically and technically viable

conditions, taking into consideration the costs and advantages, whether or not the techniques

are used or produced inside the member state in question, as long as they are reasonably

accessible to the operator;

• ‘best’ shall mean most effective in achieving a high general level of protection of the

environment as a whole
[Council Directive 96/61/EC]
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3.3
congener

all the chlorine derivatives of biphenyl, irrespective of the number of chlorine atoms, are termed

congeners
[EN 61619]
3.4
contaminant

foreign substance or material in an insulating liquid, gas or solid, which usually has deleterious

effect on one or more properties
[IEV 212-07-26]
3.5
critical incidence

in some cases, effect of the faulty performance of a component on the performances of a system

3.6
decontamination

procedure of reducing, eliminating and/or decomposing compounds and/or undesired elements on

a specific matrix, to the prescribed concentration limit
3.7
decontamination (from PCBs)

all operations which enable equipment, objects, materials or fluids contaminated by PCBs to be

reused, recycled or disposed of under safe conditions, and which may include replacement,

meaning all operations in which PCBs are replaced by suitable fluids not containing PCBs

[Council Directive 96/59/EC Art. 2, e]

NOTE PCBs decontamination techniques may be applied during the service life of the electrical equipments or at the end of their life.

In the latter case these techniques may be considered as waste treatment. When these techniques are applied during the service life

then they should be considered as maintenance activities.
3.8
dehalogenation of PCBs

method of chemical decontamination dehalogenating PCBs down to the prescribed concentration

limit
NOTE Halogenated compounds include PCTs, PCBTs, PCDFs, PCDDs, etc.
3.9
depolarisation

method of decontamination from polar compounds or oxidation products of dielectric fluids,

capable of reinstating the functional features required.

This process includes selective chemical reaction applying the best available techniques

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3.10
disposal

operations D8, D9, D10, D12 (only in safe, deep, underground storage in dry rock formations and

only for equipment containing PCBs and used PCBs which cannot be decontaminated) and D15

provided for in Annex II A of Directive 75/442/EEC
[Council Directive 96/59/EC Art. 2, f]
3.11
equipment containing PCBs

any equipment containing PCBs or having contained PCBs (e.g. transformers, capacitors,

receptacles containing residual stocks) which has not been decontaminated. Equipment of a type

which may contain PCBs shall be treated as if it contains PCBs unless it is reasonable to assume

the contrary
[Council Directive 96/59/EC Art. 2, b]
3.12
failure
end of the capability of a component or system to fulfil the function required
3.13
holder

natural or legal person who is in possession of PCBs, used PCBs and/or equipment containing

PCBs
[Council Directive 96/59/EC Art. 2, d]
3.14
incineration

controlled combustion to degrade materials, in accordance with current regulations and the best

available techniques
3.15
insulating liquid

liquid with negligibly low electrical conductivity, used to separate conducting parts at different

electrical potentials
3.16
maintenance

combination of all technical and administrative actions, including supervision actions, intended to

retain an item in, or restore it to, a state in which it can perform a required function

3.17
reclaiming

elimination of soluble and insoluble contaminants from an insulating liquid by chemical absorption

means, in order to restore properties as close as possible to the original value
NOTE The process may include the use of antioxidants.
3.18
risk

probabilistic value, entity of the damage for its probability to occur. It is a function of time, failure

rate, asset value and correlated damages
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3.19
PCBs
- polychlorinated biphenyls;
- polychlorinated terphenyls;

- monomethyl-tetrachlorodiphenyl methane, monomethyl-dichloro-diphenyl methane, monomethyl-

dibromo-diphenyl methane;

- any mixture containing any of the above mentioned substances in a total of more than

0,005 % by weight
[Council Directive 96/59/EC Art. 2, a]
3.20
polychlorinated biphenyls
biphenyl substituted by one to 10 chlorine atoms
3.21
treatment

procedure using physical or chemical means with the purpose of reinstating the features of the fluid

and/or matrix near the values desired
3.22
used PCBs

any PCBs which is considerable as a waste within the meaning of Directive 75/442/EEC

3.23
waste

any substance or object which the holder discards or intends or is required to discard

NOTE During their service life, electrical equipment and insulating liquids shall not be considered as waste.

4 Inventory and communication

Electrical equipments containing PCB contaminated insulating liquids are not considered waste

whilst in service even if they are subject to the inventory.

The holders of equipment containing PCBs in volume exceeding 5 dm³ (5 l) are required to provide

inventory and report to the authorities in charge, providing the information specified in 4.5.

NOTE 1 The limit of 5 dm³ is intended as referred to the volume of the insulating liquid (PCBs) contained by the equipment; if this is not

known or can be presumed from the data of the plate or other documents of the manufacturer, it should be referred to the total volume

of the equipment.

NOTE 2 Each capacitor in a bank battery should be considered as a single equipment to which the total volume of 5 dm³ applies.

4.1 PCBs for inventory purposes

With the term of PCBs is intended a family of substances including polychlorinated biphenyls and

the products correlated to them listed in Table 1.
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Table 1 - PCBs family
Symbols synonyms and
Family of substances
commercial mixtures
Askarels, Aroclor (1242 – 1254 – 1260),
1 Polychlorinated biphenyls
Apirolio, Clophen, Pyralene, etc.
PCT
2 Polychlorinated terphenyls
Aroclor (5442 – 5460 – 5060)
Monomethyl-tetrachlorodiphenyl methane,
Polychlorinated benziltoluenes PCBT
3 Monomethyl-dichloro-diphenyl methane,
Ugilec 141, T4
Monomethyl-dibromo-diphenyl methane
Mineral insulating oils
Any mixture containing any of the above
4 mentioned substances in a total of more
Synthetic insulating liquids such as
than 0,005 % by weight
silicones, alkilbenzenes, etc.

NOTE Directive 96/59/EC expresses the limit concentration as a percentage by weight, whereas technical

standards and common use utilise units of measure such as mg/kg or parts per million (ppm). To clarify, the

conversion ratios are listed here below:
• 0,005 % by weight corresponds to 50 mg/kg, or 50 parts per million (ppm);
• 0,05 % by weight corresponds to 500 mg/kg, or 500 parts per million (ppm).
In this standard, concentrations are always expressed in mg/kg.

Consequently, the designation PCBs includes, besides Polychlorinated biphenyls as such, other

families of substances assimilated to them for level of hazard, thus subject to the same restrictions.

The summation of the concentrations of all the substances mentioned herein constitutes the total

PCBs content to which the limits are referred to.

Among all the families of substances belonging by definition to the category of PCBs, the

polychlorinated biphenyls, properly designated, had a capillary dissemination, whereas PCTs and

PCBTs have been marketed and used in a largely more limited scale.

The analytical methods that can be applied in measuring the PCBs content in insulating liquids and

in the relevant containers are described in 4.4.
4.2 Equipment containing PCBs for inventory purposes

For “equipment containing PCBs”, (Directive 96/59/EC), means any equipment containing PCBs or

used to contain PCBs (e.g. transformers, resistors, inductors, reactors, switches, capacitors

recep
...

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