A.3 SPEC_CAD-1377_Signed.pdf

TECH NICAL SPECI FICATION

80K Helium Purifier for B9l2 Liquid Helium Refrigeration System

Eric O'Connor, Cryogenic Engineer, C-AD Date

Prepared by

7/9/26

Approved by Roberto Than, Cryogenic Engineer GL, C-AD Date

7/9/26

Date Approved by Russell Feder, Cryogenic Group Head, C-AD

7/9/26

8912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y.11973

PROJECT:

VERSION

SPEC CAD-í377

DOCUMENT NUMBER

9JUL2026

DATE

Helium Purifier for 8912 Liquid Helium Refrigeration System

This information is controlled by the U.S. Depattment of Commerce Export Administration Regulations 15 CFR Parts730-774 as EAR99 Technology.

E. 0'Connor

REVISION HISTORY

Change l{otes By lnitiaI Release

Approved

R. Than

Approved

R. Feder llate

1112u2025

Rev.

PO 0raft for author/reviewer

Prior to lnitiaI Retease

8912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y.11973

Page2ot 14

PROJECT:

VERSION

9JUL2026

DATEDOCUMENT NUMBER

Helium Purifier sPEC_CAD-1377

CONTENTS

I

Definitions/Acronyms

Introduction

l. I Scope

2 Technical Requirements

2.1 Layout and Location Requirements

2.2 Performance Requirements

2.3 Component Requirements

2.3.1 Vacuum Vesse/(s) of Helium Purifier

2.3.2 Thermal Shield

2.3.3 PipingandAdsorber(s)

2.3.4 Valves

2.3.5 Safety Pressure Relief Va|ves

2.3.6 Heat Exchangers

2.3.7 lnstrumentation

2.3.8 Air Distribution

.7

.9

.9

122.4

2.5

Electrical

Options 2.5.1 2.5.2 2.5.3 2.5.4 lnstallation of Helium Purifier LN2 Transfer line Piping connect¡ons Controlsysfern.

-1

8912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISI-AND, N.Y. 11973

PROJECT:

VERSION

9JU12026

DATEDOCUMENT NUMBER

Helium Purifier

SPEC CAD-1377

Definitions/Acronyms

American Society of Mechanical Engineers

Bar (Absolute)

Bar (Gauge Pressure)

Brookhaven National Laboratory þoiler and Pressure Vessel Code

ASME

Bara

Barg

BNL

BPVC

BSA

DOE

ESH

GeV g/s

LHe

LN2

MeV

NEC

NFPA

NRTL

NSLS-II

P&ID

PLC

ppmv

PRV

RF

R/L

SC

SR

Brookhaven Science Associates

Department of Energy

Environment, Safety, and Health

Giga (billion) electron Volt gram per second

Liquid Helium

Liquid Nitrogen

Mega electron volt

National Electric Code

National Fire Protection Association

Nationally Recognized Test Lab

National Synchrotron Light Source II Process and Instrumentation Diagrams

Process Logic Controller

Parts per million volume

Pressure Relief Valve

Radio Frequency

Refri geration/L iquefaction

Superconducting

Storage Ring

This information is controlled by the U.S. Department of Commerce Export Administtation Regulations 15 CFR Parts 730-774 as EA,R99 Technology.

B9l2 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y. 11973

PROJECT:

VERSION

9JUL2026

DATEDOCUMENT NUMBER

Helium Purifier

SPEC_CAD-1377

This Technical Specif,rcation (SPC) is the basis for the procurement of Helium purifier for the Liquid

Helium (LHe) Refrigeration Plant, which exists at the B9l2 Cryogenic Module Test Facility 89l2 Cryogenic Module Test Facility at Brookhaven National Laboratory @NL). The building 912

(hereafter B9l2) cryogenic system upgrade at Brookhaven National Laboratory is managed by

Brookhaven Science Associates (BSA).

1 INTRODUCTION

The requirements of the purity of Helium in the system are high; an input of 100 ppmv and an output of I ppmv. The superficial gas residence time shall be no less than 28 seconds for helium gas at design flow.

1.1 Scope

This scope of supply includes the Helium Purifier as following:

1. Delivery of Helium purifier

2. Piping interconnections and other interfaces

3. Terminal box connections to interface with BNL PLC in order to communicate with Purifier field devices and instrumentation.

4. BNL will procure and send PLC hardware to be installed at factory. Vendor will provide instrumentation power supply. Vendor will provide inputs/outputs/interfaces.

NOTE: See section 2.5 for details.

This document specifies the design and operating requirements for the Helium Purifier.

This information is controlled by the U.S. Department of Commerce Export r\dministration Regulations 15 CFR Parts 730-774 as EAR99 Technology.

B9l2 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISIAND, N.Y. 11973

9JU12026Page 5 of 14

DATE

PROJECT:

VERSIONDOCUMENT NUMBER

Helium Purifier sPEC_CAD-I377

1.2 ApplicableDocuments

In the event of a conflict between the Technical Specification and the SOW, the Contractor shall immediately notiff the Brookhaven Science Associates (BSA) contractual representative, who shall in each instance determine which document takes precedence and advise the Contractor accordingly.

Failure to noti$ BSA of a document conflict shall not relieve the Contractor's responsibility to ensure full compliance with all requirements.

The following documents form apart of requirements to the extent specihed herein. Unless otherwise noted, the issue date or revision level shall be that in effect at the time of award.

Table I Applicable Documents

Ref f#l

Document

Number Document Title

1 c46000023 912 Purifier Process and lnstrumentation Diagram (AutoCAD) c46000095

(DRAFT)

912, CRYOGENIC SYSTEM,2D Facility Layout (DRAFT)

3 ASME A13.1 Scheme for the ldentification of Piping Systems (2015)

4 ASME B3O.2O Below-the-Hook Lifting Devices (201 3)

5 ASME 830.26 Rigging Hardware (2015) b ASME 831.3 Process Piping (2016)

ASME BPVC

Section Vlll Rules for Construction of Pressure Vessels -> Division 1,2 (2015)

ASME BPVC

Section Xlll ASME BPVC Section Xlll: Rules for overpressure protection

I ASME BTH-1 Design of Below-the-Hook Lifting Devices, Design (2014) (Cat. "4")

10 BNL-871 5-2008-

IR

"Vacuum Systems Consensus Guidelines for DOE Accelerator Laboratories"

11 BNL-QA-101 BNL Supplier Quality Assurance Requirements

12 NFPA 70 2O2O National Electrical Code (2020)

13 DOE 10CFR851

Code of Federal Regulations - Worker Safety and Health Program http ://www.ecfr.sov/cei-bin/text-idx?SlD=74c4c4d0c04074b20d 18a31cb047f8e0&mc=true&node=pt10.4.851&rsn=d iv5 rEC 60529:

1989/AMD2:

2013/COR1:2019

Degrees of protection provided by enclosures (lP Code)

B912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y.11973

PROJECT:

VERSION

9JU12026

DATE

SPEC CAD-1377

DOCUMENT NUMBER

2 TECHNICAL REQUIREMENTS

2.1 Layout and Location Requirements

1. The Helium Purifier will occupy the B9l2 Cryomodule Test Facility, see drawing

CA6000095 *912 CRYOGENIC SYSTEM 2D Facility Layout", Table 1, Ref. l2l.

C46000095 is currently in DRAFT and will be released upon contract award. The overall dimensions oÊthsl{e}ium purifier-irra planviewfooþrint;rrottoexceed l2S ftlengtht6-ft-width. The 2D Facility layout drawing is in DRAFT, but the Footprint Zone dimensional limits of the Helium Purifier are known. The Helium Purifier should not exceed the available footprint zone in Ref. [2] without prior written approval from BSA.

2. There is an overhead fire protection sprinkler system in the 912 building. All components of Helium Purifier shall be installed in a "moisture proof' condition or housed in "moisture proof'cabinets that are capable of withstanding modest exposure to water or other fluids and meeting an IEC IP63 rating, Ref. [4], or equivalent.

3. The Helium Purifier shall be able to withstand operating in a non-climate-controlled area with air temperature of 912 building is not a climate-controlled area with the air temperature range of 30 +2oC (-86 t4'F) and humidity range from3}Yoto 600/o.

2.2 PerformanceRequirements

One of the scenarios for use of the Helium Purifier is air contamination of the cryogenic system.

With this scenario, the Helium Purifier shall bring the cryogenic system back to the normal operation as quickly as possible without Helium inventory replacement. The intent is to direct all contaminated Helium, after the burst disk replacement on Cavities, through the warm return to the compressor's oil removal system and further to the Helium Purifier and back to the cryogenic system. With all mentioned above, the Helium Purifier shall comply with the following requirements,

l. The Helium Purif,rer for the LHe Refrigeration System shall be an in-line purifier. The operating pressure range shall be between 116 psig (8 barg) and232 psig (16 barg).

2. The Helium Purifier shall be a continuous operation purifier of double-bed configuration with the regeneration time of each bed not more than 6 hours.

3. The Helium Purifier shall be capable of handling the inlet impurities level equal to 0.01%

@0 ppmv) at the Helium flow rate of 40 g/s for 8 hours or more (when the regeneration is required). The cumulative impurities level of any gasses at the exit of the purifier shall be

8912 Cryogenic Module Test Facility

BROOKHAVE N NATIONAL L,ABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y. 11973

PROJECT:

Page 7 of 14 1

VERSION

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DOCUMENT NUMBER

9JU12026

DATE

for B912 Liquid Helium Refrigeration System less than or equal to ! ppmv, and shall have a superficial gas residence time of no less than

28 seconds at a flow of40 g/s.

4. The purifier shall have manual operator capability.

5. The purifier shall have automatic regeneration and automatic switchover of beds.

6. The preesure drop across the Helium Purifier shall be less than or equal to 300 mBar (4.4 nsis) at the uooer ranqe of the operatins Dressure 232 psis. and flow of 40 e/s.

7. The pressure drop across the Helium Purifier shall be less than or equal to 600 mBar (3.4 psig) at the low range of the operating pressure 1 l6 psig and flow of 40 g/s. At lower pressure, the pressure drop will be higher for the same flow.

The pressure drop shall not exceed Condition 1 or Condition 2 in Table 2 below without prior written approval from BSA.

Table 2

Pressure Drop

Condition I </= 600 mBar

Condition 2 </= 300 mBar

8. The startup time duration between a warrn Helium Purifier and its operational condition shall be less than2 hours.

9. During normal operation when the system is in 2K pumping mode (16 barg and l0 g/s) the

Helium Purifier LN2 consumption shall not exceed 30 Gal/hr.

10. All pressurized components shall be compliant with the Department of Energy (DOE)

10CFR85I, Table I Ref. [13], $851.24 "Functional areas", item þ) with reference to

,4ppcndix A to Part 851 "lflorkcr Sofoy,and Health Functional Areas" in section4 -

"Pressure Safety" with applicable listed documents including American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code (BPVC) sections I through section XIII, particularly, section VIII "Rules for C'onstruction of Pressure Vessels" Division l, or Division 2 "Alternative Rules", and ASME Code 831.3 "Process Piping".

11. The Helium Purifier shall be capable of operating under integration with BNL automated control system and in manual mode as well. The Helium purifier configuration shall at minimum include the number of components and instrumentation indicated in 912

PURIFIER PROCESS AND INSTRUMENTATION DIAGRAM, Table 1, drawing number

Operating Pressure Flow

I barg 40 g/s

16 barg 40 g/s

8912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y. ,I1973

Page I of 14

PROJECT:

VERSION

SPEC CAD-1377

DOCUMENT NUMBER

9JU12026

DATE

lor 8912 Liquid Helium Refrigeration System

C46000023, Ref. [1]. Any other configuration is subject to review and approval by BSA in writing upon fulfillment of requirements of this specification.

12. The Helium Purifier shall be designed such that the routine maintenance is required no more than once every twelve (12) months, regardless of whether the system is operated intermittently or continuously. The duration of any routine maintenance activity shall not exceed two (2) days. -

13. lhe Helrum Puntrer shall be desrgned and constructed wlth a mlrumum operatlonal llle oI greater than20 years based on an average of 4,000 operating hours per year average and24 warrn up/cool down temperature cycles per year. The design shall provide for replacement of adsorbents (charcoals, zeolite, alumina or other). Any deviation from this specification shall require prior written approval from BSA and shall be supported by the technical justification.

14. The overall weight of the Helium Purifier, maximum allowable working pressure (MAWP), design and operating temperature ratings, purity specifications, serial number, and manufacturing date shall be indicated on the nameplate.

2.3 ComponentRequirements

Labeling of all valves, instrumentation and interface points (flanges/ports) on all components is required.

2.3.1

1.

Vacuum Vesse(s) of Helium purifier

All low temperature elements, below 280K Íange, shall be inside the vacuum vessel of the

Helium Purifier.

The insulating vacuum operating pressure shall be 10-a Torr or lower and shall not require dynamic pumping. The total helium leak rate with a mass spectrometer shall be less than

10-8 std. ccls.

3. The vacuum vessel(s) shall have DN25 KF port with isolating valves to connect to BSA supplied vacuum pumps.

4. The vacuum vessel shall have an integrated DV-6 series (TCG) gauge for the vacuum pressure monitoring at DN25 KF port, as shown in Ref. [1].

5. The vacuum vessel shall be protected against overpressure by a drop plate or other pressure relief device that shall allow release of the overpressure at 0.1 Barg (1.45 psig). There shall be a holding mechanism preventing the drop plate from flying away in case of overpressure.

6. During operation there shall be no ice or condensation on the exterior surfaces.

8912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y.11973

Page I of 14

PROJECT:

VERSION

9JU12026

DATEDOCUMENT NUMBER

Helium Purifier lor 8912 Liquid Helium Refrigeration System

SPEC_CAD-1377

2.3.2 Thermal Shield

The adsorber(s) heat exchangers and piping inside the vacuum vessel shall be wrapped with Mylar@ film superinsulation, 30 layers minimum.

2. The heat load flux density shall be below 0.05 W/ft'? (0.54 Wm)

2.3.3 Piping and Adsorber(s)

1. All process piping in the Helium purifier shall be made of seamless stainless steel piping

ASTM 316L or ASTM 304L.

All Helium process lines shall have a minimum design pressure of 19.7 Barg (285 psig).

The design and construction shall follow Chapter IX rules of ASME 831.3 Code for High Pressure Fluid Service.

All Nitrogen process lines shall have a minimum design pressure of 19.7 Barg (285 psig).

The design and construction shall follow Chapter VIII rules of ASME 831.3 Code for

Category M Fluid Service.

The adsorber(s) of the Helium Puriher shall have a minimum design pressure of 19.7 Barg

(285 psig). The design and construction shall follow rules of ASME BPVC Section VIII, Division 1, if the vessel exceeds 6 in (-152 mm) inside diameter, otherwise ASME 83 1 .3

Code. A duplicate of each adsorber vessel U-stamp/nameplate shall be attached to the outside of the Helium Purifier.

Pipe diameters and routings shall be selected as to minimize the pressure drop across the

Helium Puriher required in Section 2.2,Item 6 of this Technical Specification.

6. All process lines, Helium and Nitrogen, and warm gas (bakeout) lines shall be leak checked after final assembly with a Helium mass spectrometer to the leak rate less than l0-8 std. ccls.

The Nitrogen gas vent goes out the B9l2 facility. Outgoing N2 gas from the purifier will tap into BNL existing vent header. The Contractor shall specify size and connection type of Nitrogen gas vent line.

2.3.4 Valves

1. The valve sizing shall be adequate to minimize the pressure drop across the Helium purifier as required in Section 2.2,Item 6 of this Technical Specification.

J

8912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y. 11973

PROJECT:

VERSION

9JUL2026

DATEDOCUMENT NUMBER

Helium Purifier

2. All valves outside the vacuum vessel shal be sliding stem buttwelded globe type valves (no ball valves).

3. All control valves and shut-off valves shall be pneumatic with a valve position sensor. The

Power supply for solenoid valves shall be 24VDC, see section 2.4below.

4. All positioners used for controlling pneumatic valves shall use a two-wire system having a closed, and20 mA - 100% open). Minimum pneumatic pressure 8Opsig

Both, main inlet and main outlet of the Helium Purifier shall have 1" nominal isolation buttwelded globe valves.

At each main isolation valve, the pump-out ports shall have an isolation globe valve with a

DN25 fitting as shown in the Helium Purifier Piping and Instrumentation Diagram Ref. [1] attached in documentation package.

7. All valve seats shall be freld replaceable.

8. All actuated valves shall be fail closed.

9. All control valves, plus inlet/outlet manual valves at the supply and return lines, shall have a provision to be locked out.

2.3.5 Safety Pressure Relief Valves

1. The Contractor shall follow rules of ASME BPVC Section VIII, Division 1, UG-125 through UG-140 for Rules for Construction of Pressure Vessels, Table I Ref. [7]. and

Section XIII, Table 1 Ref. [8]. Rules for Overpressure Protection.

The Helium Purifier shall be designed such that all pressure relief devices have sufhcient relieving capacity, the pressure boundary is not ruptured, there is no perrnanent damage to equipment, and no hazard for personnel injury in the event of a power failure or loss of insulating vacuum.

3. For all trapped volumes in the Helium process lines where the pressure may exceed 313 psig, the pressure relief valves (PRV) shall be provided.

4. For all trapped volumes in the Nitrogen process lines where the pressure may exceed

313 psig, the pressure relief valves shall be provided.

8912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISI.AND, N,Y. 11973

PROJECT:

Page 11 of 14 1

VERSION

9JUL2026

DATEDOCUMENT NUMBER

Helium Purifier

5. All PRVs shall be certified (stamped) by either both the National Board of Boiler and

Pressure Vessel Inspectors (NBBI) or an ASME certified inspector Certification Mark in accordance with UG-130, Table 1 Ref. [8].

6. All PRVs shall be installed vertically

2.3.6 Heat Exchangers

l. The heat exchangers shall be made of either aluminum, copper, or stainless steel.

2. The heat exchangers of the Helium Purifier shall have a minimum design pressure of (285 psig). The design and construction shall follow rules of ASME BPVC Section VIII, Division 1.

3. The channel cross-sections, passages and its routings shall be designed to minimize the pressure drop and achieve the requirement of Item 6 in Section 2.2 of this Technical

Specihcation.

2.3.7 lnstrumentation

1. An instrument panel with Input/Output modules, switches, breakers, etc. shall be provided inside "moisture proof'cabinet, see requirements of section 2.1 above, item 4.

2. The wiring shall conform to requirements NFPA 7},Table I Ref. [12].

3. The list of instrumentation indicated in Ref. [1] P&ID drawing C46000023 shall be provided at a minimum. There shall be no other conhgurations with the instrumentation without prior written approval from BSA.

4. All pressure and temperature sensors monitoring intemal conditions shall be patched to a terminal block to the allow the interface of BNL PLC.

2.3.8 Air Distribution

1. Air distribution shall have a provision for interlock.

2.4 Electrical

All electrical distribution shall be in accordance with U.S. standards, and shall comply with NFPA7O, Table 1 Ref. [12]. All commercial off-the-shelf (COTS) power supplies shall be

B912 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y. 11973

PROJECT:

VERSION

9JUL2026

DATE

SPEC_CAD-í377

DOCUMENT NUMBER

2.

J approved by a Nationally Recognized Testing Laboratory NRTL) - reference the below

URL for approved certification marks:

http ://www.osha. gov/dts/otpca/nrtl/n rtlm rk. htm l.

All heaters and vacuum pump(s) shall be powered via cabling I20VAC, l-phase, and 60

Hz from the cabinet attached to the Helium Purifier.

Power supply for solenoid valves shall be 24VDC.

4 All exposed uninsulated electrical connections > 50 volts shall be covered to comply with U.L. Standard 508 so that all uninsulated charged surfaces protect workers from the hazards of electricâl shock. Plexiglas is not allowed; Lexan@ may be used. Electrical insulation must be Low Smoke,Zero Halogen, Fire Retardant.

The main power supply switches and breakers shall have a provision to be locked out.

Piping connectíons

The piping connections from the Helium purifier to the Helium gas high pressure supply line consists of two tees with isolation valves and bypass valve between as shown on P&ID C46000023, Table I, Ref. [].

There shall be a provision for the connection of the gas purity analyzer: 1/4" tubing connections with isolation valves. Plumbing connections shall be made for gas analyzer to be hooked up to an inlet and outlet of both beds, per P&ID CA6000023, Table l, Ref. [1].

2.5.3 l.

2.5 lnterfaces

2.5.1 IIeIÍum Inlet and Outlet ConnectÍons

1. The inlet and outlet pipe connection will be buttwelded to the external lines.

2.5.2 LN2 Transfer LÍne Connection and N2 Vent LÍne Connection

l. Contractor shall supply BNL the mating male bayonets for integration into our LN2 supply line and into our N2 vent line. The requirements of ltems 1 and 3 in Section 2.3.3, and Items

3 and 4 in Section2.3.5 within this Technical Specification shall apply.

2. No ice or condensation is allowed on the exterior surfaces during operation.

3. The piping design and construction shall sustain loads arising from the weight effect, service pressure and the thermal deformations. The stress analysis shall pass with 480 cycles (24 cycles/year x 20 years, see ltem 12 in Section2.2 of this Technical Specification) of the warming-up and cooling-down.

2.

B9l2 Gryogenic Module Test Facil¡ty

BROOKHAVEN NATIONAL L,ABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N.Y.11973

PROJECT:

,l

VERSION

9JUL2026

DATEDOCUMENT NUMBER

Helium Purifier

3. The requirements of Items I and2 in Section 2.3.3,Items 2,3,and 4 in section 2.3.4,and Items 3 and 4 in section 2.3.5 defined within this Technical Specification are applicable.

2.5.4 Control system.

1. The Contractor shall be responsible for the configuration of the Helium Purifier to interface with BNL's CAD Cryogenic control system. see Item 10 of Section 2.2 of this Technical

Specihcation and Section 3.1.2 of the Statement of Work.

2 Communications between instrumentations and BNL PLC shall be via 4 to 20 mA signals for analog signals, 24VDC for Boolean/digital signals and minimum 3-wires for temperature sensors.

3. Connections in the junction/termination box shall be specified and labeled.

This information is controlled by the U.S. Department of Commerce Export Administration Regulations 15 CFR Parts 730-774 as EAR99 Technology.

Helium Purifier lor 8912 Liquid Helium Refrigeration System

PROJECT:

SPEC CAD-1377 9JU12026 1

B9l2 Cryogenic Module Test Facility

BROOKHAVEN NATIONAL LABORATORY

BROOKHAVEN SCIENCE ASSOCIATES

UPTON, LONG ISLAND, N,Y.11973

DOCUMENT NUMBER DATE VERSION