SIST EN ISO 16070:2006

SLOVENSKI STANDARD
01-september-2006
Industrija za predelavo nafte in zemeljskega plina – Oprema za vrtine – Zaklepna
vpenjala in pristajalni prijemki (ISO 16070:2005)
Petroleum and natural gas industries - Downhole equipment - Lock mandrels and landing
nipples (ISO 16070:2005)
Erdöl- und Erdgasindustrie - Bohrloch-Ausrüstung - Abhängestücke und Landenippel
(ISO 16070:2005)
Industries du pétrole et du gaz naturel - Equipement de fond de trou - Mandrins a clé
d'ancrage et sieges d'ancrage (ISO 16070:2005)
Ta slovenski standard je istoveten z: EN ISO 16070:2005
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 16070
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2005
ICS 75.180.10 Supersedes EN ISO 16070:2001
English Version
Petroleum and natural gas industries - Downhole equipment -
Lock mandrels and landing nipples (ISO 16070:2005)
Industries du pétrole et du gaz naturel - Equipement de Erdöl- und Erdgasindustrie - Bohrloch-Ausrüstung -
fond de trou - Mandrins à clé d'ancrage et sièges d'ancrage Abhängestücke und Landenippel (ISO 16070:2005)
(ISO 16070:2005)
This European Standard was approved by CEN on 26 September 2005.
CEN 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. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16070:2005: E
worldwide for CEN national Members.

Foreword
This document (EN ISO 16070:2005) has been prepared by Technical Committee ISO/TC 67
"Materials, equipment and offshore structures for petroleum and natural gas industries" in
collaboration with Technical Committee CEN/TC 12 "Materials, equipment and offshore
structures for petroleum, petrochemical and natural gas industries", the secretariat of which is
held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by June 2006, and conflicting national
standards shall be withdrawn at the latest by June 2006.

This document supersedes EN ISO 16070:2001.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 16070:2005 has been approved by CEN as EN ISO 16070:2005 without any
modifications.
INTERNATIONAL ISO
STANDARD 16070
Second edition
2005-12-15
Petroleum and natural gas industries —
Downhole equipment — Lock mandrels
and landing nipples
Industries du pétrole et du gaz naturel — Équipement de fond de
trou — Mandrins à clé d'ancrage et sièges d'ancrage

Reference number
ISO 16070:2005(E)
©
ISO 2005
ISO 16070:2005(E)
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ii © ISO 2005 – All rights reserved

ISO 16070:2005(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 3
4 Abbreviated terms . 4
5 Functional specification. 5
5.1 General. 5
5.2 Functional characteristics of lock mandrels and landing nipples . 5
5.3 Well parameters . 5
5.4 Operational parameters . 5
5.5 Environmental compatibility. 6
5.6 Compatibility with the related well equipment . 6
5.7 Quality documentation. 6
5.8 Design validation . 6
6 Technical specification . 7
6.1 General. 7
6.2 Technical characteristics of lock mandrels and landing nipples . 7
6.3 Design criteria . 7
6.4 Design verification. 9
6.5 Design validation . 10
6.6 Design changes . 12
6.7 Functional test parameters. 12
7 Supplier/manufacturer requirements. 12
7.1 Documentation and data control. 12
7.2 User/purchaser documentation. 13
7.3 Product identification. 14
7.4 Quality control. 14
7.5 Functional testing. 21
8 Repair. 22
Annex A (informative) Example of landing nipple validation test dimensional check sheet . 23
Bibliography . 24

ISO 16070:2005(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 16070 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling and production
equipment.
This second edition cancels and replaces the first edition (ISO 16070:2001), which has been technically
revised.
iv © ISO 2005 – All rights reserved

ISO 16070:2005(E)
Introduction
This International Standard has been developed by users/purchasers and suppliers/manufacturers of lock
mandrels and landing nipples intended for use in the petroleum and natural gas industry worldwide. This
International Standard is intended to give requirements and information to both parties in the selection,
manufacture, testing and use of lock mandrels and landing nipples. Furthermore, this International Standard
addresses the minimum requirements with which the supplier/manufacturer is to comply so as to claim
conformity to this International Standard.
This International Standard has been structured to allow for grades of increased requirements in quality
documentation and design validation. These variations allow the user/purchaser to select the grade required
for a specific application.
There are two quality documentation grades which provide the user/purchaser the choice of requirements to
meet specific preference or application. Quality documentation grade Q2 is the minimum grade of
documentation offered by this International Standard. Grade Q1 provides additional material documentation.
There are three design validation grades which provide the user/purchaser the choice of requirements to meet
specific preference or application. Design validation grade V3 is the minimum grade and represents
equipment where the validation method has been defined by the supplier/manufacturer. The complexity and
severity of the validation testing increases as the grade number decreases.
Users of this International Standard should be aware that requirements above those outlined in this
International Standard may be needed for individual applications. This International Standard is not intended
to inhibit a supplier/manufacturer from offering, or the user/purchaser from accepting, alternative equipment or
engineering solutions. This may be particularly applicable where there is innovative or developing technology.
Where an alternative is offered, the supplier/manufacturer should identify any variations from this International
Standard and provide details.
INTERNATIONAL STANDARD ISO 16070:2005(E)

Petroleum and natural gas industries — Downhole
equipment — Lock mandrels and landing nipples
1 Scope
This International Standard provides the requirements for lock mandrels and landing nipples within the
production/injection conduit for the installation of flow control or other equipment used in the petroleum and
natural gas industries. It includes the interface connections to the flow control or other equipment, but does
not cover the connections to the well conduit.
2 Normative references
The following referenced documents are indispensable for the application of this document. The way in which
these referenced documents are cited determines the extent (in whole or part) to which they apply. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3601-1, Fluid power systems — O-rings — Part 1: Inside diameters, cross-sections, tolerances and size
identification code
ISO 3601-3, Fluid power systems — O-rings — Part 3: Quality acceptance criteria
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method
ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method (scales A, B, C, D, E, F, G, H,
K, N, T)
ISO 6892, Metallic materials — Tensile testing at ambient temperature
ISO 9712, Non-destructive testing — Qualification and certification of personnel
ISO 13628-3, Petroleum and natural gas industries — Design and operation of subsea production systems —
Part 3: Through flowline (TFL) systems
ISO 13665, Seamless and welded steel tubes for pressure purposes — Magnetic particle inspection of the
tube body for the detection of surface imperfections
ISO 15156-1, Petroleum and natural gas industries — Materials for use in H S-containing environments in oil
and gas production — Part 1: General principles for selection of cracking-resistant materials
ISO 15156-2, Petroleum and natural gas industries — Materials for use in H S-containing environments in oil
and gas production — Part 2: Cracking-resistant carbon and low alloy steels, and the use of cast irons
ISO 16070:2005(E)
ISO 15156-3, Petroleum and natural gas industries — Materials for use in H S-containing environments in oil
and gas production — Part 3: Cracking-resistant CRAs (corrosion-resistant alloys) and other alloys
1)
API Spec 5B , Specification for threading, gauging, and thread inspection of casing, tubing, and line pipe
threads
2)
ASME Boiler and Pressure Vessel Code:2004 , Section V, Non-destructive examination
ASME Boiler and Pressure Vessel Code:2004, Section Vlll, Division 1, Rules for construction of pressure
vessels
ASME Boiler and Pressure Vessel Code:2004, Section lX, Welding and brazing qualifications
3)
ASTM A 388/A 388M , Standard practice for ultrasonic examination of heavy steel forgings
ASTM A 609/A 609M, Standard practice for castings, carbon, low-alloy, and martensitic stainless steel,
ultrasonic examination thereof
ASTM D 395, Standard test methods for rubber property — Compression set
ASTM D 412, Standard test methods for vulcanized rubber and thermoplastic rubbers and thermoplastic
elastomers — Tension
ASTM D 638, Standard test method for tensile properties of plastics
ASTM D 1414, Standard test methods for rubber O-rings
ASTM D 1415, Standard test method for rubber property — International hardness
ASTM D 2240, Standard test methods for rubber property — Durometer hardness
ASTM E 94, Standard guide for radiographic examination
ASTM E 140, Standard hardness conversion tables for metals (relationship among Brinell hardness, Vickers
hardness, Rockwell hardness, Rockwell superficial hardness, Knoop hardness, and scleroscope hardness)
ASTM E 165, Standard test method for liquid penetrant examination
ASTM E 186, Standard reference radiographs for heavy-walled [2 to 4 ½-in. (51 to 114-mm)] steel castings
ASTM E 280, Standard reference radiographs for heavy-walled [4 ½ to 12-in. (114 to 305-mm)] steel castings
ASTM E 428, Standard practice for fabrication and control of steel reference blocks used in ultrasonic
examination
ASTM E 446, Standard reference radiographs for steel castings up to 2 in. (51 mm) in thickness
4)
BS 2M 54:1991 , Specification for temperature control in the heat treatment of metals
5)
SAE-AMS-H-6875:1998 , Heat treatment of steel raw materials

1) American Petroleum Institute, 1220 L Street NW, Washington, DC 20005-4070, USA.
2) American Society of Mechanical Engineers, Three Park Avenue, New York, NY 10016-5990, USA.
3) American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, USA.
4) BSI, Customer Services, 389 Chiswick High Road, London W4 4AL, UK.
5) SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, USA.
2 © ISO 2005 – All rights reserved

ISO 16070:2005(E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE For quality system terms used in the text of this International Standard but not defined below, see ISO 9000.
3.1
ambient temperature
prevailing temperature at test site
3.2
critical component
part that is pressure containing and/or load bearing
3.3
design acceptance criteria
defined limits placed on characteristics of materials, products, or services established by the organization,
customer, and/or applicable specifications to achieve conformity to the product design
[ISO/TS 29001:2003]
3.4
design validation
process of proving a design by testing to demonstrate conformity of the product to design requirements
[ISO/TS 29001:2003]
3.5
design verification
process of examining the result of a given design or development activity to determine conformity with
specified requirements
[ISO/TS 29001:2003]
3.6
full life cycle
expected period of time in which the product is specified to function according to the supplier’s/manufacturer’s
specifications
3.7
landing nipple
receptacle containing a profile designed for the installation of a lock mandrel
3.8
lock mandrel
retention device used for flow control equipment or other equipment
3.9
manufacturing
process and action performed by an equipment supplier/manufacturer that are necessary to provide finished
component(s), assembly(ies) and related documentation, that fulfil the requests of the user/purchaser and
meet the standards of the supplier/manufacturer
NOTE Manufacturing begins when the supplier/manufacturer receives the order and is completed at the moment the
component(s), assembly(ies) and related documentation are surrendered to a transportation provider.
ISO 16070:2005(E)
3.10
model
lock mandrel or landing nipple equipment with unique components and operating characteristics which
differentiate it from other lock mandrel or landing nipple equipment of the same type
3.11
operating environment
set of conditions to which the product is exposed during its full life cycle
3.12
production/injection conduit
tubulars and equipment which provide the flow path between the reservoir and the christmas tree, including
the riser for subsea applications
3.13
profile
feature designed to receive the lock mandrel's locking mechanism
3.14
sealing device
device preventing passage (i.e. communication) of liquid and/or gas across the interface between the lock
mandrel and the landing nipple
3.15
size
relevant dimensional characteristics of the equipment as defined by the supplier/manufacturer
3.16
test pressure
pressure at which the equipment is tested based upon all relevant design criteria
NOTE See 6.5.1 for test pressure requirements.
3.17
test temperature
temperature at which the equipment is tested based upon all relevant design criteria
3.18
type
lock mandrel or landing nipple equipment with unique characteristics which differentiate it from other
functionally similar lock mandrel or landing nipple equipment
3.19
rated working pressure
landing nipple internal pressure design limit or lock mandrel differential pressure design limit from above
and/or below, as established by the supplier/manufacturer
4 Abbreviated terms
⎯ AQL Acceptance quality limit
⎯ NDE Non-destructive examination
⎯ TFL Through flowline
4 © ISO 2005 – All rights reserved

ISO 16070:2005(E)
5 Functional specification
5.1 General
The user/purchaser shall prepare a functional specification for ordering products conforming to this
International Standard and specify the following requirements and operating conditions, as applicable, and/or
identify the supplier’s/manufacturer’s specific product. These requirements and operating conditions may be
conveyed by means of a dimensional drawing, data sheet or other suitable documentation.
5.2 Functional characteristics of lock mandrels and landing nipples
The following functional characteristics shall be specified, as applicable, for lock mandrels and landing
nipples:
a) conveyance method;
b) locking mechanism;
c) no-go;
d) selectivity;
e) sealing device;
f) dimensions;
g) passage of lines (electrical and/or hydraulic) in the annulus (for landing nipples only).
5.3 Well parameters
The following well parameters shall be specified, as applicable, for the lock mandrel and landing nipple:
a) size, mass, material and grade of the casing and tubing;
NOTE The term “weight” is often incorrectly used to mean mass, but this practice is deprecated.
b) well depth and angle from the vertical to the installed position;
c) casing and tubing architecture, deviations, and restrictions through which the lock mandrel and/or landing
nipple pass;
d) anticipated loading conditions which might be applied to the lock mandrel and landing nipple.
5.4 Operational parameters
The following operational parameters shall be specified, as applicable, for the lock mandrel and landing
nipple:
a) acidizing, including the acid composition, pressure, temperature, velocity, exposure time and any other
chemicals used during the stimulation;
b) fracturing, including proppant description, fracture fluid velocity and proppant-to-fluid ratio;
c) sand consolidation operations;
d) type of well intervention, including service equipment such as electric line, slick line, braided line, coiled
tubing, or snubbing equipment.
ISO 16070:2005(E)
5.5 Environmental compatibility
The following shall be identified, as applicable, for the lock mandrel and landing nipple to ensure
environmental compatibility:
a) production/injection fluid composition, mass, chemical and/or physical composition, and the condition of
the fluid and/or its components [i.e. solid (sand production, scale, etc.), liquid and/or gaseous], to which
the lock mandrel and landing nipple is exposed during its full life cycle;
b) both the minimum and the maximum anticipated values of the production/injection pressures, pressure
differentials, temperatures and flow rates;
c) in cases where the user/purchaser has access to corrosion property historical data and/or research which
is applicable to the functional specification, the user/purchaser should state to the supplier/manufacturer
which material(s) has the ability to perform as required within the corrosion environment.
5.6 Compatibility with the related well equipment
5.6.1 Lock mandrels
The following information shall be specified, as applicable, to ensure the compatibility of the lock mandrel with
the related well equipment:
a) size and/or type of the lock mandrel required to position the flow control equipment in the landing nipple;
b) landing nipple size, model and type into which the lock mandrel is to be installed;
c) size, type, material, configuration and interface dimensions of the connection between the flow control
equipment and the lock mandrel;
d) size, type and configuration of other products to be used with the lock mandrel.
5.6.2 Landing nipples
The following information shall be specified, as applicable, to ensure the compatibility of the landing nipples
with the related well equipment:
a) top and bottom tubular connection(s), the material and dimensions of the landing nipple which is
connected to the tubing;
b) internal receptacle profile(s), sealing bore dimension(s), outside diameter, inside diameter and their
respective locations;
c) size, type and configuration of lock mandrels or other products to be used with the landing nipple.
5.7 Quality documentation
The quality documentation grade (i.e. Q1 or Q2 as given in 7.4) shall be specified by the user/purchaser.
5.8 Design validation
The design validation grade (i.e. V1, V2 or V3 as given in 6.5) shall be specified by the user/purchaser.
6 © ISO 2005 – All rights reserved

ISO 16070:2005(E)
6 Technical specification
6.1 General
The supplier/manufacturer shall prepare the technical specification which responds to the requirements
defined in the functional specification. The supplier/manufacturer shall also provide product data as defined in
7.2.1 to the user/purchaser.
6.2 Technical characteristics of lock mandrels and landing nipples
6.2.1 Characteristics of lock mandrels
The lock mandrel, including sealing devices, shall have the capability to support the loading conditions as
specified in 5.3.c) and d) and to locate and seal as intended at the specified location and remain so under the
stated conditions of pressure, temperature and axial loads, as applicable (see 6.3.2, 6.5.3, and 6.5.4).
6.2.2 Characteristics of landing nipples
The landing nipple, including seals, shall have the capability to support the loading conditions as specified in
5.3.c) and d) and to receive and seal the lock mandrel as intended at the specified location under the stated
conditions of pressure, temperature and axial loads, as applicable (see 6.3.2 and 6.5.2). Additionally, certain
landing nipple designs contain control fluid redirection features and shall also perform in accordance with
6.5.2 f).
6.3 Design criteria
6.3.1 Design requirements
6.3.1.1 Design requirements shall include methods, assumptions and calculations, and shall include
those criteria for size, test, working and operating pressures, materials, environment (temperature limits,
chemicals) and other pertinent requirements upon which the design is based. Design documentation shall be
reviewed and verified by a qualified individual other than the individual who created the original design.
6.3.1.2 Lock mandrel and landing nipple equipment shall be manufactured to drawings and specifications
that are substantially the same as those of the size, type, and model of lock mandrel and landing nipple
equipment that has passed the validation test.
6.3.1.3 The supplier/manufacturer shall establish verified internal yield pressure, collapse pressure and
minimum tensile strength, temperature limits, and rated working pressure, excluding end connections. The
supplier/manufacturer shall identify the critical components of the product and the mode of stress. The
supplier/manufacturer shall calculate the stress level in the critical component(s) based upon the maximum
loads in the design input requirements to determine those components which are critically stressed. Critically
stressed components are those which are stressed to 90 % or greater of the minimum design yield strength of
the material. The minimum material condition and minimum material yield strength shall be used in the
calculations, which shall include consideration of temperature limit effects and thermal cycles. Metal
mechanical properties de-rating shall be in accordance with ASME Boiler and Pressure Vessel Code:2004,
Section II, Part D.
The design shall take into account the effects of pressure containment and pressure-induced loads.
Specialized conditions, such as pressure testing with temporary test plugs, shall also be considered.
6.3.1.4 Component and subassembly identification and interchangeability shall be required within each
supplier’s/manufacturer's size, type and model, including working pressure rating of lock mandrel and landing
nipple equipment. Additive dimensional tolerances of components shall be such that proper operation of the
lock mandrel and landing nipple equipment is assured. This requirement applies to supplier/manufacturer-
assembled equipment and to replacement components or sub-assemblies.
ISO 16070:2005(E)
6.3.2 Materials
6.3.2.1 General
Materials and/or service shall be stated by the supplier/manufacturer and shall be suitable for the environment
specified in the functional specification. The supplier/manufacturer shall have written specifications for all lock
mandrel and landing nipple material. All materials used shall comply with the supplier’s/manufacturer's written
specifications.
The user/purchaser may specify materials for the specific corrosion environment in the functional specification.
Should the supplier/manufacturer propose to use another material, the supplier/manufacturer shall state that
this material has performance characteristics suitable for all parameters specified in the well and
production/injection parameters. This applies to metallic and non-metallic components.
Except for seals, material substitutions in qualified lock mandrels and landing nipples are allowed without
design validation testing provided that the supplier’s/manufacturer's selection criteria are documented and
meet all other requirements of this International Standard.
6.3.2.2 Metals
6.3.2.2.1 The supplier’s/manufacturer’s specifications shall define:
a) chemical composition limits;
b) heat treatment conditions;
c) mechanical property limits:
1) tensile strength;
2) yield strength;
3) elongation;
4) hardness.
6.3.2.2.2 The mechanical properties specified in 6.3.2.2.1 shall be verified by tests conducted on a material
sample produced from the same heat of material. The material sample shall undergo the same heat treatment
process as the component it qualifies. Material subsequently heat-treated from the same heat of material shall
be hardness tested after processing to confirm compliance with the hardness requirements of the
supplier’s/manufacturer’s specifications. The hardness results shall verify through documented correlation that
the mechanical properties of the material tested meet the properties specified in 6.3.2.2.1. The heat treatment
process parameters shall be defined in the heat treatment procedure. Hardness testing is the only mechanical
property test required after stress-relieving. Material test reports provided by the material supplier or the
supplier/manufacturer are acceptable documentation.
6.3.2.2.3 Each welded component shall be stress-relieved in accordance with the supplier’s/manufacturer's
written specifications and, where applicable, in accordance with the ASME Boiler and Pressure Vessel
Code:2004, Section VIII, Division 1, Subsection C, paragraphs UCS-56 and UHA-32.
6.3.2.3 Non-metals
The supplier/manufacturer shall have documented procedures, including acceptance criteria, for evaluations
or testing of sealing materials or other non-metals, to the limits for which the equipment is rated. Evaluations
(or tests) shall verify the material used is suitable for use in the specific configuration, environment and
application. These evaluations shall include the combination of: pressure, temperature, and the fluids
compatible with the intended application.
8 © ISO 2005 – All rights reserved

ISO 16070:2005(E)
Sealing materials previously qualified in accordance with current or prior editions of ISO 10432 or
API Spec 14A for the range of application shall be considered as meeting the design validation requirements
of this International Standard.
The supplier’s/manufacturer's written specifications for non-metallic compounds shall include handling,
storage and labelling requirements, including the cure date, batch number, compound identification and shelf
life appropriate to each compound and shall define those characteristics critical to the performance of the
material, such as:
a) compound type;
b) mechanical properties, as a minimum:
1) tensile strength (at break);
2) elongation (at break);
3) tensile modulus (at 50 % or 100 %, as applicable);
c) compression set;
d) durometer hardness.
6.3.3 Performance rating
The supplier/manufacturer shall state the pressure, temperature and axial load rating, as applicable, for the
specific equipment. The individual performance capabilities of the lock mandrel and landing nipple equipment
shall be provided so that their combined performance capability can be determined.
6.3.4 TFL equipment
For additional requirements for these products in TFL applications, see ISO 13628-3.
6.4 Design verification
6.4.1 General
Design verification shall be performed to ensure that each lock mandrel and landing nipple design meets the
supplier’s’s/manufacturer’s technical specifications. Design verification includes activities such as design
reviews, design calculations, physical tests, comparison with similar designs and historical records of defined
operating conditions.
6.4.2 Scaling limits
6.4.2.1 Lock mandrels and landing nipples, exclusive of sealing devices, of the same model, type, and
design are considered to be design-verified if the following conditions are met:
a) The allowable variation in size shall be within ± 5 % of the nominal seal bore diameter of the validated
design.
b) The supplier/manufacturer shall identify the critical components of the scaled product and the mode of
stress in accordance with 6.3.1.3.
c) Critical stress levels of the scaled product supplier/manufacturer identified critical components, stated as
a percentage of material yield, shall not exceed those of the validated design at the same conditions.
d) The loading mode and stress calculation(s) method shall be identical for the scaled product and the
validated product.
ISO 16070:2005(E)
6.4.2.2 Sealing devices of the same type, design, and material are considered to be design-validated
when the allowable variation in size is within the range of ± 5 % of the nominal seal bore diameter of a
validation-tested design.
6.5 Design validation
6.5.1 General
This International Standard specifies three grades of design validation. The user/purchaser shall specify the
grade of design validation required. Products shall be supplied to at least the design validation grade specified.
Landing nipples shall be provided only in grades V2 or V3.
Products previously qualified in accordance with ISO 10432 or API Spec 14A, prior to the publication of this
International Standard, shall be considered as meeting the design validation requirements at their relevant
grade of this International Standard.
The grades of design validation are classified as follows.
⎯ V3 applies to equipment that satisfies all requirements of this International Standard except for validation
testing.
⎯ V2 applies to equipment that satisfies all requirements of this International Standard including the testing
in 6.5.2 and 6.5.3. All grade V2 equipment meets the requirements of grade V3.
⎯ V1 applies to equipment that satisfies all requirements of this International Standard including the testing
in 6.5.4. All grade V1 equipment meets the requirements of both grades V3 and V2.
The supplier/manufacturer shall document the validation test procedure and results. The validation test
pressure(s) shall exceed the rated working pressure(s) as determined by the supplier/manufacturer.
The supplier/manufacturer shall also have the following documents on file:
⎯ material specifications;
⎯ mill certifications and drawings which show all the applicable dimensions;
⎯ materials and tolerances of components contained in the validation-tested product.
Pre- and post-test dimensional inspection of critical areas as determined by the supplier/manufacturer shall be
documented, evaluated in accordance with the supplier’s/manufacturer's specifications and the data
maintained. Annex A shows an example of a check sheet for presenting the recorded data.
6.5.2 Validation testing of landing nipples — Grade V2
The landing nipple shall undergo grade V2 validation testing as follows.
a) The supplier/manufacturer shall perform an internal pressure test of each size, type and model of the
landing nipple at the rated test pressure.
b) The test apparatus shall be capable of providing and recording pressures at the rated test pressure of the
landing nipple.
c) After stabilization, the hold time for the pressure test shall be at least 15 min. Pressure variations shall not
exceed ± 1 % of the applied test pressure.
d) All testing shall be performed at ambient temperature.
10 © ISO 2005 – All rights reserved

ISO 16070:2005(E)
e) Single-piece surface-controlled safety valve landing nipples (SVLN) shall undergo pressure testing to
confirm the maximum pressure rating of their control/communication capability. During the bore-pressure
tests, the control line ports shall be monitored for leakage. If any leakage is detected from a control line
port, the safety valve landing nipple fails the test.
f) Each SVLN that contains control fluid redirection feature(s) shall be bore-pressure tested at the rated
working pressure of the SVLN in each alternative position of the control fluid redirection feature(s). This
testing may be performed on typical components provided the operating components tested are of the
same design, dimensions and clearances as those of the production SVLN and made of equivalent
material. During these bore-pressure tests, the control line ports shall be monitored for leakage. If any
leakage is detected from a control line port that is designated as isolated from the SVLN bore (in
accordance with the SVLN Operating Manual), the SVLN fails the test. The supplier/manufacturer shall
verify that the product is capable of performing at its rated temperature limits.
6.5.3 Validation testing of lock mandrels — Grade V2
The lock mandrel shall undergo grade V2 validation testing as follows.
a) The supplier/manufacturer shall perform the validation test of each size, type and model. The lock
mandrel shall be installed in an equal or higher rated landing nipple or test device with the
supplier’s/manufacturer’s specified running tool and procedures. The lock mandrel shall be subjected to
pressure differential from above and below (as applicable) to the rated test pressures.
b) After stabilization, the hold time for the pressure shall be at least 15 min. Pressure variations shall not
exceed ± 1 % of the applied test pressure. Once the hold time has elapsed, release the pressure.
c) The lock mandrel shall be retrieved from the landing nipple or the test device using the
supplier’s/manufacturer’s specified pulling tool and procedures.
d) All pressure testing shall be performed at ambient temperature.
6.5.4 Validation testing of lock mandrels — Grade V1
The lock mandrel shall undergo grade V1 validation testing as follows.
a) The supplier/manufacturer shall perform the validation test of each size, type and model. The lock
mandrel shall be installed in an equal or higher rated landing nipple or test device with the
supplier’s/manufacturer’s specified running tool and procedures. The lock mandrel shall be
simultaneously subjected to rated limits of pressure and temperature from above and below (as
applicable).
b) After stabilization, the hold time for the pressure shall be at least 15 min. Pressure variations shall not
exceed ± 1 % of the applied test pressure. Once the hold time has elapsed, release the pressure.
c) The lock mandrel shall be retrieved from the landing nipple or test device using the
supplier’s/manufacturer’s specified pulling tool and procedures.
6.5.5 Validation testing of sealing devices
6.5.5.1 Sealing devices shall be tested with water or other appropriate liquid to the rated limits of the lock
mandrel to which it is to be affixed (simultaneously subjected to rated limits of pressure and temperature in the
direction(s) of intended use). The supplier/manufacturer shall perform and document validation testing for
each size, design, and material. A locking mandrel and landing nipple or test fixture may be used for vali
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