Exhibit A Helium Recovery SOW.pdf

Fermilab Engineering Specification

IB3a Helium Recovery

ED0033426

Rev. Description Originated By Checked By Approved By

- Initial Release D. Porwisiak

Fermi National Accelerator Laboratory

P.O. Box 500 - Batavia, Illinois - 60510

Table of Contents

1 INTRODUCTION

2 ACRONYMS AND DEFINITIONS

2.1 Abbreviations

2.2 Definitions

3 DESCRIPTION OF WORK

3.1 General

4 APPLICABLE CODES, DOCUMENTS, AND STANDARDS

4.1 General

4.2 List of Codes and Standards

5 MATERIALS

6 GENERAL REQUIREMENTS

6.1 General

6.2 Summary of Responsibilities for Requirements

6.3 Work environment

6.4 Safety Requirements

6.5 Design Pressures and Temperatures

6.6 Leak Tightness

6.7 Flexibility

6.8 Waste disposal

7 CONSTRUCTION, FABRICATION, AND ASSEMBLY REQUIREMENTS

7.1 Welding

7.2 Cleaning

8 INSTRUMENTATION AND VALVES

8.1 Pressure Measurements

8.2 Valves

8.3 Labelling

9 PIPE SUPPORTS

9.1 General

9.2 Roof supports

10 HELIUM PIPING AT IB1A DESCRIPTION AND INTERFACES

10.1 General description

11 IB3A interface and roof piping

11.1 General description

12 FRA PROVIDED

12.1 Design documentation

12.2 Material and parts as shown in the parts list of F10117106 and F10218834

12.3 Supports and anchors

13 SUBCONTRACTOR DOCUMENTATION

13.1 Provided with offer

13.2 Provided prior to starting work

13.3 Provided during installation

ED0033426, IB3A Helium Recovery

Form Revised January1, 2013 Page 4

1 INTRODUCTION

Fermi National Accelerator Laboratory (FNAL) is in the process of installing a Helium Recovery

System at Industrial Buildings Complex. We are adding a new piping system to recover helium from

Industrial Building 3 Addition (IB3a) to Industrial Building 1 Addition (IB1a) purifier compressor suction.

Tests conducted at IB3a consume large amounts of helium every year, which is currently being released into the atmosphere. Piping routed on the roofs of IB3a, IB3, ICBa, ICB and the Midway

Building will deliver the helium to the nearest purification system. Overview of designed piping is presented on Fig 1. The piping will begin in place where the piping from previous helium recovery effort started, behind the vacuum pump shed. The pipe will be connected to the existing system in the exterior of the IB1a building.

In the documentation below, DEVICE will refer to this piping system. This document provides technical description for fabrication and installation of the new helium recovery piping. This document describes how the new piping interfaces to existing piping. Interfaces of SUBCONTRACTOR’s scope of work are indicated on Fig 2. and Fig 4. Location of buildings is illustrated on Fig. 3.

Figure 1 Overview of new piping at Industrial Buildings Complex for helium recovery.

IB3A

IB1A

MID ICB

ICBA

IB3

START END

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Figure 2 System Piping and Instrumentation Diagram at IB3A

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Figure 3 A top view of Industrial buildings roofs

Figure 4 System Piping and Instrumentation Diagram at IB1A

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2 ACRONYMS AND DEFINITIONS

2.1 Abbreviations

MAWP – Maximum Allowable Work Pressure

IPS – International Pipe Size

PQR – Procedure Qualification Record

WPQ – Welder Performance Qualification

WPS – Welding Procedure Specification

PID – Process and Instrumentation Diagram

Organizational acronyms

ANSI – American National Standards Institute

ASCE – American Society of Civil Engineers

ASME – American Society of Mechanical Engineering

ASTM - American Society for Testing and Materials

EJMA – Expansion Joint Manufacturers Association

ISO – International Organization for Standardization

Fermilab System Acronyms

IB1 – Industrial Building 1

IB1A – Industrial Building Annex 1A at Fermilab. Auxiliary building for compressors and utilities.

MID – Midway building

ICB – Industrial Center Building

ICBA - Industrial Center Building Addition

IB3 – Industrial Building 3

IB3A – Industrial Building 3 Addition

2.2 Definitions

SUBCONTRACTOR the piping contractor installing the DEVICE

FRA the buyer, Fermi Research Alliance, LLC

DEVICE

The piping system between IB1a and IB3a defined here by this specification

CODE

a term used to refer collectively to the various pressure safety and other safety standards by which the DEVICE shall comply

WPS A Welding procedure specification

PQR A Welding Procedure Qualification Record

WPQ A Welder Performance Qualification record

May a term which indicates that a provision is neither required nor prohibited

Shall a term which indicates that a provision is a requirement

Should a term which indicates that a provision is recommended as good practice but is not a requirement

Form Revised January1, 2013 Page 8

3 DESCRIPTION OF WORK

3.1 General

3.1.1 The SUBCONTRACTOR shall furnish all labor, tools, consumable items, and services necessary to install (handle and weld) the DEVICE system in strict accordance with this specification.

3.1.2 The SUBCONTRACTOR shall provide documentation as specified in Section 12 of this specification.

3.1.3 The DEVICE shall be installed based the routing shown on the following reference layout drawing. The SUBCONTRACTOR is responsible for measuring all dimensions necessary for installation of the DEVICE and field fitting piping sections to the appropriate lengths.

• F10218834 IB1A HELIUM RECOVERY PIPE ROUTING

3.1.4 In the event of contradictions between FRA supplied documents and governing code, FRA shall be informed upon discovery and the problem shall be resolved in writing.

3.1.5 A 3-D model of the DEVICE may be provided upon request during the bidding process or after the contract is awarded.

4 APPLICABLE CODES, DOCUMENTS, AND STANDARDS

4.1 General

4.1.1 In the event of conflict between drawings and the written specification, the written specification shall be the governing document.

4.1.2 In the event of incompleteness, error or contradictions in FRA-supplied documents, drawings, or models, the SUBCONTRACTOR shall notify FRA in writing to obtain directives.

4.1.3 If the SUBCONTRACTOR deems it necessary to observe additional governing codes and regulations, FRA shall be notified of this in writing. FRA will notify the

SUBCONTRACTOR in writing the outcome of this request.

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4.1.4 The DEVICE and its subcomponents shall be designed to comply with all applicable requirements of the CODE, documents and standards listed in this specification.

4.2 List of Codes and Standards

Health and safety applicable regulations

• 10 CFR 851 - DOE Worker Safety and Health Program

• Illinois rules of the road apply at Fermilab Site

The following list of codes in their latest edition, drawings and standards shall be applied to the engineering, design, fabrication, assembly and tests of the DEVICE and its components:

• ASME B31.3 Process Piping

• ASME B31.9 Building Services Piping

• ASME Boiler and Pressure Vessel Code Section VIII Div 1 and Section IX

• AISC Manual of Steel Construction

• ASTM A380 Cleaning and De-scaling Stainless Steel Parts

Form Revised January1, 2013 Page 10

5 MATERIALS

5.1.1 FRA shall provide all DEVICE materials and hardware, for example: pipe, fittings, supports, flange bolting, flange gaskets, hardware for supports, etc.

5.1.2 All helium piping shall be stainless steel (Type 304/L) or (Type 316/L).

5.1.3 All materials used in pressure containing piping components shall conform to the required CODE material requirements for the appropriate fluid service category and operating temperature range.

5.1.4 All fittings, flanges, and blanks shall conform to CODE requirements for the appropriate service category.

5.1.5 All piping should be provided in general lengths of 40 feet.

5.1.6 All piping, fittings and hardware shall be staged at the job site for SUBCONTRACTOR use.

5.1.7 From the time that the materials are released to the SUBCONTRACTOR until the final acceptance of the work is performed, all costs for the replacement of materials lost or damaged become the responsibility of the SUBCONTRACTOR.

5.1.8 If materials supplied by FRA will have any manufacturing defects, FRA shall replace defective materials.

5.1.9 Any excess material supplied by FRA remains the property of FRA and shall be returned upon completion of the work.

6 GENERAL REQUIREMENTS

6.1 General

6.1.1 The SUBCONTRACTOR shall supply all equipment, special tooling, consumables, and perform all work and services necessary to fabricate, assemble, a fully functional

PIPING system suitable for long-term operation in accordance with this specification.

6.1.2 The SUBCONTRACTOR shall perform all drilling/coring of holes for piping penetrations. This includes penetrations for relief headers.

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6.1.3 FRA shall be available to perform in-process and/or radiographic weld inspections/examinations as requested by the SUBCONTRACTOR for CODE compliance.

6.1.4 FRA shall perform all pressure testing and leak checking in coordination with the

SUBCONTRACTOR per FRA requirements.

6.1.5 The SUBCONTRACTOR shall repair any welds that fail inspections or qualification tests.

6.1.6 FRA shall be responsible for coordinating independent radiographic inspections and the cost for these services.

6.1.7 The SUBCONTRACTOR may fabricate subassemblies at their home shop. It is the responsibility of the SUBCONTRACTOR to verify all field dimensions. The

SUBCONTRACTOR shall allow FRA representatives to visit the SUBCONTRACTOR home shop to inspect any off-site work. The SUBCONTRACTOR shall sign out all piping materials taken off the Fermilab site.

6.1.8 FRA will designate a person responsible for supervising the works on Fermilab site.

6.2 Summary of Responsibilities for Requirements.

6.2.1 See Table 6-1 Task Responsibilities Summary.

Table 6-1 Task Responsibilities Summary.

RESPONSIBLE TASK OR ITEMS

FRA Purchasing all materials for the piping system FRA Providing removable caps to install at the end of the workday to maintain system cleanliness SUBCONTRACTOR Purchasing all consumables including weld gas.

FRA Purchasing all support and anchor hardware. Assembling supports and having in place ready for piping installation.

SUBCONTRACTOR Installing PIPING as designed in F10218834.

FRA Coordinating independent radiography weld inspections for CODE compliance FRA Performing any in-process weld inspections as requested by

SUBCONTRACTOR and agreed by FRA for CODE compliance FRA Performing leak checking and pressure testing FRA Helium pumping and backfilling piping for purity in preparation of leak checking SUBCONTRACTOR Repairing any welds that fail inspection or leak checking

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FRA Completing instrumentation lines for pressure transducer and contamination sensors

FRA Weatherproofing holes in walls.

SUBCONTRACTOR Man-lifts, scaffolding, and other equipment to perform work at elevated heights. Lifts, cranes, and other equipment to deliver piping materials to elevated heights.

FRA Provide mobile fall protection systems for people working on IB3A, IB3, ICBA, ICB and MID roofs.

6.3 Work environment

6.3.1 There will be work in outdoor environment.

6.3.2 There will be work at elevated levels above the ground. This includes piping on top of the IB3A, IB3, ICBA, ICB and MID buildings’ roofs and a piping to bridge across a courtyard.

6.3.3 Scope of this work does not include work on live pressurized system. FRA will connect piping to the live system on both sides (IB3A and IB1A).

6.4 Safety Requirements

6.4.1 SUBCONTRACTOR employees will be required to complete Fermilab General

Contractor Training. The SUBCONTRACTOR shall allocate one half day to complete the training (Training organized by FRA).

6.4.2 The SUBCONTRACTOR shall provide proof of Fall Protection training and implement fall protection protocols as required.

Form Revised January1, 2013 Page 13

6.4.3 The SUBCONTRACTOR shall submit a signed and dated Hazard Analysis (HA) for all scope including work at heights above 6 feet, which are required to meet the following criteria:

6.4.3.1 If applicable, the SUBCONTRACTOR shall prioritize use of 100% fall protection systems that requires minimal user input (e.g., Self-Retracting Lifeline System (SRL) connected to an attachment point approved by the form manufacturer) over dual lanyard systems. If dual lanyards are deemed the best equipment for the task, documentation of that analysis shall be reviewed and approved by FRA ES&H personnel.

6.4.3.2 Explicitly identified and documented acceptable tie-off points necessary for each element of work.

6.4.3.3 Fall protection rescue plans that have been crafted and are incorporated into the HA.

6.4.3.4 Daily inspection of Personal Protective Equipment and mechanical equipment.

6.4.3.5 Ensure the knowledgeable supervisor communicates the HA, both verbally and in writing, to all workers in a consistent manner.

6.4.3.6 Workplans and HAs will require a DOE review and approval before work may commence. FRA subject matter expert (SME) reviews of the HA will also be required. The SUBCONTRACTOR shall allocate sufficient time for HA preparation and review.

6.4.4 For any work with a crane, SUBCONTRACTOR must meet appropriate FRA training and lifting requirements.

6.4.5 For any work using SUBCONTRACTOR supplied equipment such as a scissor lift, articulating lift, etc., the SUBCONTRACTOR shall supply proof of training.

6.4.6 The use of safety helmets will be required in situations that include but not limited to: crawling under equipment, climbing ladders, exposed work with safety line, etc.

The use of safety helmets shall be covered as PPE in the Hazard Analysis. In certain situation chin guard straps for hard hats can be used as substitute for a safety helmet.

6.4.7 For Fall Protection tie-off when working on IB3A, IB3, ICBA, ICB and MID roofs, FRA will provide a Leading Edge Safety Stinger Mobile Fall Protection System for each worker. FRA will expect to provide equipment for four persons on roof at a time. For more persons to access, FRA approval is required.

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6.5 Design Pressures and Temperatures

6.5.1 The FRA design allows for minimum design temperature -20 oF and maximum design internal pressure of 10 psig. Minimal allowable working pressure is full vacuum with atmospheric external pressure.

6.6 Leak Tightness

6.6.1 Maximum helium leak rates occurring during testing and operation of the DEVICE shall not exceed the values provided in Table 6-3. The SUBCONTRACTOR is responsible for installing the PIPING to meet the criteria and any needed repairs.

6.6.2 Leak testing shall be performed at MAWP for each line using helium as the pressurized fluid. FRA will verify leak rates. Testing will be done with portable helium leak detector or soap bubble solution. Pumping and backfilling with helium for purity before the leak test will be done by FRA.

Table 6-2 Maximum Acceptable Vacuum Helium Leak Rates at MAWP

Description Maximum Acceptable Integral Helium Leak Rate

- Torr-L/sec

Process piping welds 1x10-5

Flanges and threaded joints No gas leak when tested with soap bubble solution

(LEAK-TEC or equivalent)

6.6.3 Flanges shall have proper alignment, squareness, and rotation so that flange sealing meets the leak rate requirements.

6.7 Flexibility

6.7.1 The FRA design in F10218834 allows for thermal contraction due to ambient and process temperature changes. Support, guide, and anchor positions are shown on the drawing F10218834.

6.7.2 FRA shall provide supports, guides, and anchors hardware that compensate for this motion.

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6.8 Waste disposal

6.8.1 The SUBCONTRACTOR shall separate and dispose of waste separately:

6.8.1.1 General waste container will be made available by FRA.

6.8.1.2 Disposal of discarded metal parts will be performed in a separate bulk container/pallet and will be managed by FRA.

6.8.1.3 Hazardous substances managed in a separate disposal area and managed by FRA.

6.8.2 Upon demobilization, the SUBCONTRACTOR shall perform a site cleanup.

7 CONSTRUCTION, FABRICATION, AND ASSEMBLY REQUIREMENTS

7.1 Welding

7.1.1 All weld joint preparation and welding techniques shall be performed in accordance with Chapter V of the ASME B31.3 code. Piping Code fluid service category is

Category D; however, weld examination requirements for the Normal Fluid Service

Category shall apply.

7.1.2 The SUBCONTRACTOR shall conduct the tests required to provide a Procedure

Qualification Record (PQR) for each Welding Procedure Specification (WPS) as required by Section VIII-Division 1 and Section IX of the ASME BPVC and/or Chapter

V of the ASME B31.3 code.

7.1.3 The SUBCONTRACTOR shall conduct the tests required to qualify each welder to a

Welder Performance Qualification (WPQ) as required by Chapter V of the ASME

B31.3 code.

7.1.4 The SUBCONTRACTOR shall maintain records in accordance with paragraph UW-48

Section VIII-Division 1 of the ASME BPVC for all welders and welding operators working on the DEVICE.

7.1.5 All stainless steel welding performed on piping shall utilize the Gas Tungsten Arc

Weld (GTAW) process using welding quality argon gas for the inert shield.

7.1.6 All welds shall be internally purged with welding quality argon gas during the time of welding and post welding treatment. Measured oxygen concentration shall be less than 1%.

7.1.7 Welds that show evidence of a lack of purge shall not be accepted.

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7.1.8 All welding shall be performed in such a manner that the weld surface is smooth and free of irregularities. No visible metal chips or foreign material shall be detectable within any component of the PIPING. All external surfaces in the weld area shall be cleaned of heat tint, slag, and other deposits. No mechanical process shall be used to achieve a smooth appearance. Filler metal shall be 308/308L stainless steel.

7.1.9 No production welding shall be performed for the PIPING until all WPS, PQR, and

WPQ documents have been qualified in accordance with ASME BPVC Section VIII-

Division 1 paragraphs UW-28 and UW-29 and Section IX of the ASME BPVC and submitted and approved by FRA.

7.1.10 The SUBCONTRACTOR shall supply weld maps which identify each weld and name of welder performing the weld. In addition, each weld shall be marked or stamped with an identification stamp.

7.1.11 At the conclusion of each workday, the SUBCONTRACTOR shall mount removable caps on all open piping ends to maintain cleanliness. FRA shall provide the removable caps.

7.1.12 Acceptance tests

7.1.12.1 Random radiographic examination according to the CODE for 5% of all butt welds shall be coordinated by FRA using an independent contractor. It is the SUBCONTRACTOR’S responsibility to repair any welds that fail a radiographic exam.

7.1.12.2 If a weld or welds fail radiography it is the SUBCONTRACTOR’S responsibility for costs incurred for any subsequent radiographic examinations required by the CODE. This includes radiographic examination of additional welds due to the progressive sampling clause of the

CODE. All radiographic examinations shall be coordinated by FRA.

7.1.12.3 In-Process Inspection according to the CODE may be substituted for radiographic examination at the discretion of FRA. The SUBONTRACTOR shall allow access to FRA to perform In-Process Inspection as required.

7.2 Cleaning

7.2.1 FRA will be responsible for providing initially clean piping material. It is the responsibility of the SUBCONTRACTOR to maintain this cleanliness throughout the fabrication process, as described below:

• Cleaning agents shall be suitable for the materials of construction and shall be neutralized if necessary

Form Revised January1, 2013 Page 17

• Each assembly shall be cleaned to provide an inner surface of all pipes and tubes free of grease, flux, moisture, dirt, and other foreign materials by vapor degreasing or suitable wash. Surfaces shall be visibly inspected and wiped down with a white cloth.

In order to be considered free of contamination, no discoloration shall appear on the white cloth.

• After cleaning, each section shall be blown dry with clean dry air until no visual moisture remains.

7.2.2 All pipe sections, fittings and valves shall remain clean internally at every stage of installation by the SUBCONTRACTOR. No visible metal chip or foreign material shall be allowed to remain inside any component of the piping system including, but not limited to, scale, spatter, flux, and grease. During installation, open pipe ends shall be kept sealed with a cap, tape or equivalent material.

7.2.3 Weld spatter shall be removed by wire brushing using stainless steel brushes.

7.2.4 The SUBCONTRACTOR shall ensure all piping, fitting, and component interiors stay clean and dry while awaiting installation.

8 INSTRUMENTATION AND VALVES

8.1 Pressure Measurements

8.1.1 Pressure taps shall be ¼ inch NPT female boss. They shall have curvature to match appropriate mating pipe size. Locations are indicated on F10218834.

8.1.2 Pressure sensing lines shall be ¼ inch tubing. This will be installed by FRA.

8.2 Valves

8.2.1 Valves to be used are defined in the Parts List of F10218834 and the Valve, Instrumentation and Equipment list. Valves will be provided by FRA and installed by the SUBCONTRACTOR.

8.2.2 Valve locations are indicated on F10218834.

8.2.3 SUBCONTRACTOR shall take appropriate precautions when welding near valves to prevent overheating of valve seals.

8.3 Labelling

8.3.1 FRA is responsible for labelling.

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9 PIPE SUPPORTS

9.1 General

9.1.1 FRA will supply support materials e.g. clevises and lengths of threaded rod, Unistrut pieces, etc. FRA will install wall mounted supports at IB3A, ICB and IB1A. FRA will provide assembled roof support parts for IB3A, IB3, ICBA, ICB and MIDWAY but will not mount these on the roof top.

9.1.2 Specific support details are shown on F10218834. For anchoring, mechanical anchors will be used.

9.1.3 Pipe welds shall avoid interfering with operation of any sliding or rolling points.

9.2 Roof supports

9.2.1 The roof pipe supports will be cross bar types with feet to sit on membrane type roof as shown in F10218834.

9.2.2 Piping should be laid 15’ from the edge of the roof and 5’ away from HVAC equipment.

9.2.3 The roof supports shall be adjusted to maintain level pipe runs. The pipe shall be at least 18” above the roof (recommended 24”).

10 HELIUM PIPING AT IB1A DESCRIPTION AND INTERFACES

10.1 General description

10.1.1 Piping will be connected to purifier compressor Mycom 1 suction as shown

F10218834 and F10117106.

10.1.2 The recovery piping connects to the low pressure suction piping for the compressor system. At IB1A, there is a connection to purifier compressor suction pipe. The connection to the live system will be made by FRA. The SUBCONTRACTOR is responsible for installing the piping up to the point marked on Figure 4.

10.1.3 The SUBCONTRACTOR will be responsible for installing the DEVICE ending with valves YCV-1771 and HV-1774. FRA will install branch with valve HV-1775 and will connect the DEVICE to the live system. 3D Model fragment of this part is shown on

Figure 5.

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Figure 5 3D Model fragment of interface at IB1A side. The SUBCONTRACTOR scope ends at YCV-1771 and

HV-1774 (see also Figure 4)

YCV-1771

HV-1774

HV-1775

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Figure 6 Interface location on wall of the IB1A building

11 IB3A interface and roof piping

11.1 General description

11.1.1 There is no interface with the live pressurized system at IB3A side.

11.1.2 On the ICB roof there is a branch for a future connection with 1 valve and a blind flange.

11.1.3 At IB3A, the DEVICE will end with blanked-off flange as indicated in F10218834.

11.1.4 The pipe on ICBA roof should be placed between lifeline and the fence which surrounds HVAC equipment (Figure 7).

Form Revised January1, 2013 Page 21

Figure 7 ICBA roof pipe run

11.1.5 The DEVICE should not cover the windows. Vertical pipe anchored to ICB building shall run between windows in the way that is shown Figure 8. Pipe shall run also next to the widows at ICBA (Figure 9). Special attention should be given to carefully aligning the run of the pipe with the window mullions at IB3A (Figure 9).

Figure 8 Pipe location at ICB wall.

Windows

Life line

MID

ICB

Form Revised January1, 2013 Page 22

Figure 9 Planned vertical pipe locations at IB3A and ICBA.

12 FRA PROVIDED

12.1 Design documentation

12.1.1 Piping assembly drawing pdf for F10218834

12.1.2 System schematic pdf for PID

• F10117106 IB1A Mycom Compressor System

• F00460045 Mycom 1 Purifier Compressor

12.2 Material and parts as shown in the parts list of F10117106 and F10218834

12.2.1 304/304L stainless steel pipe for helium lines in 40 ft sections

12.2.2 Fittings needed to assemble the DEVICE

12.2.3 Valves and instrumentation as shown in parts list

12.3 Supports and anchors

12.3.1 Unistrut assemblies for vertical wall supports.

Windows

Windows

ICBA

MID

IB3

IB3A

Form Revised January1, 2013 Page 23

12.3.2 Assemblies for roof supports.

12.3.3 Other miscellaneous hardware.

13 SUBCONTRACTOR DOCUMENTATION

13.1 Provided with offer

13.1.1 The SUBCONTRACTOR shall furnish copies of the WPS utilized in welding operations on the piping system with the bid.

13.1.2 The SUBCONTRACTOR shall furnish copies of the PQR utilized in welding operations on the piping system with the bid.

13.1.3 The SUBCONTRACTOR shall furnish copies of their Fall Protection program with the bid.

13.2 Provided prior to starting work

13.2.1 The SUBCONTRACTOR shall furnish copies of the WPQ for each welder utilized in welding operations on the piping system ten (10) working days prior to the start of welding.

13.2.2 The SUBCONTRACTOR shall provide proof of training as required in section 6.4.

13.2.3 The SUBCONTRACTOR personnel shall complete all required FRA training. See section 6.4.

13.2.4 The SUBCONTRACTOR shall provide all documents as required in section 6.4.

13.2.5 Proposed plan for how piping will be lifted onto the IB3A, IB3, ICBA, ICB and MID roofs for installation.

13.2.6 Safety and documentation as defined in 13.1

13.3 Provided during installation

13.3.1 For consumable items such as weld rods, electrodes, and fasteners, certificates of compliance shall be supplied.

13.3.2 Weld maps as required in section 7.1.10.

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