Attachment 01_CSS FY21-CP-0005_N6426726R1030.pdf

DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE, DISTRIBUTION IS UNLIMITED.

CSS FY21-CP-0005

CALIBRATION STANDARDS SPECIFICATION

PROCUREMENT PACKAGE

LOW PRESSURE CALIBRATOR

DESTRUCTION NOTICE – FOR UNCLASSIFIED, LIMITED DOCUMENTS, DESTROY BY ANY METHOD THAT WILL

PREVENT DISCLOSURE OF CONTENTS OR RECONSTRUCTION OF THE DOCUMENT.

OCTOBER 2022

CALIBRATION STANDARDS SPECIFICATION

PROCUREMENT PACKAGE

LOW PRESSURE CALIBRATOR

Prepared for:

NAVAIR Metrology/Calibration Product Support Team

Prepared by:

Nelson Dale

Fleet Readiness Center East MRO Engineering Bldg. 163

MCAS Cherry Point NC, 28533-0021

DEPARTMENT OF THE NAVY

METROLOGY AND CALIBRATION PROGRAM

LOW PRESSURE CALIBRATOR CSS FY21-CP-0005

i

Table of Contents

1.0 SCOPE

1.1 General

1.2 Usage

1.3 Classification

2.0 APPLICABLE DOCUMENTS

2.1 Reference documents

2.1.1 Government documents

2.1.2 Non-Government publications

2.2 Order of precedence

3.0 REQUIREMENTS

3.1 Performance requirements

3.1.1 Pressure requirement

3.1.2 Accuracy requirement

3.2 Equipment components

3.2.1 Finish

3.2.2 Color

3.2.3 Interchangeability

3.2.4 Restricted materials

3.2.4.1 Material restricted for Navy use

3.2.4.2 Other restricted materials and gases

3.2.4.2.1 Organic materials

3.2.4.2.2 Flammable materials

3.2.4.2.3 Explosive materials

3.2.4.2.4 Carcinogens

3.2.4.2.5 Helium

3.2.4.3 Combination of materials

3.2.5 Recycled, recovered, environmentally preferable, or biobased materials

3.3 Design and construction

3.3.1 Operator adjustments

3.3.2 Operator controls

3.3.3 Internal wiring

3.3.4 Front panel display indicators

3.3.5 Self-test capability

3.3.6 Pressure connections

3.4 Electrical power sources and connections

ii

3.4.1 Electrical power source

3.4.1.1 Nominal and alternate power source

3.4.2 Electrical power connections

3.4.2.1 Input power cable

3.4.2.2 Input power switch

3.4.2.3 Indicators

3.5 Enclosure physical characteristics

3.5.1 Dimensions

3.5.2 Enclosure requirements

3.5.2.1 Corners

3.5.2.2 Connections and controls

3.5.2.3 Chassis fasteners

3.6 Transit case

3.6.1 Transit case cover

3.6.2 Transit case handles

3.6.2.1 Hard transit case handles

3.6.3 Transit case corners

3.6.4 Watertight and airtight transit case pressure equalizing valve

3.6.5 Transit case insert

3.7 Marking and identification

3.7.1 Marking

3.7.1.1 Panel markings and processes

3.7.2 Equipment identification

3.7.2.1 Identification plate

3.7.2.1.1 Single case identification plate

3.7.3 Transit case identification plate

3.7.4 Item unique identification (IUID)

3.8 Environmental requirements

3.8.1 Environmental conditions

3.8.2 Temperature and humidity (T/H)

3.8.2.1 Temperature, not operating

3.8.2.2 Temperature, operating

3.8.2.3 Humidity

3.8.3 Mechanical shock

3.8.3.1 Bench handling

3.8.4 Dust exposure

3.9 Warranty label

3.10 Calibration

iii

3.10.1 Calibration certificate

3.11 Maintainability

3.11.1 Preventive maintenance

3.11.2 Maintenance provisions

3.12 Workmanship

3.13 Use and installation manual and maintenance and service manual

1.0 SCOPE

1.1 General. This document specifies the minimum requirements for a Low Pressure Calibrator. This equipment may be of commercial design or modified commercial design. It is intended to be used by Navy personnel in shore-based laboratories.

The equipment will be used to for calibrating very low pressure test instruments (TI). For the purpose of this calibration standards specification (CSS), the Low Pressure Calibrator shall be referred to as the LPC.

1.2 Usage. Equipment covered by this CSS is intended for use in testing equipment and systems in the worldwide natural and controlled environments in which Military equipment is operated. Equipment will also be subjected to operational conditions aboard land, sea and air vehicles, both military and commercial during periods of operation, transportation and storage. The requirements of this CSS are tailored to the intended use of the equipment. Specific requirements of MIL- PRF-28800G, as identified in this CSS, are invoked according to the class of equipment.

1.3 Classification. Equipment specified herein is categorized by class, (requirements arising from the intended operational environment). The class is assigned by the most severe environmental condition expected for the equipment. The equipment shall conform to the following class requirements in accordance with MIL-PRF- 28800G for Navy shore-based laboratory use as specified in this CSS

a. Class 4 – Equipment is designed for benign operational environments where the environmental conditions are controlled and protected. Examples include test equipment for use in a fully protected and environmentally controlled service area such as a laboratory.

2.0 APPLICABLE DOCUMENTS

2.1 Reference documents. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issues of these documents shall be those in effect on the date of this solicitation.

2.1.1 Government documents.

DEPARTMENT OF DEFENSE specifications

MIL-PRF-28800G – Test Equipment for use with Electrical and Electronic Equipment

MIL-PRF-38793 – Technical Manuals: Calibration Procedures - Preparation

(Copies of DoD specifications are available online at http://assist.dla.mil.)

DEPARTMENT OF DEFENSE STANDARDS

MIL-STD-130N – Identification Marking of U.S. Military Property

(Copies of DoD standards are available online at http://assist.dla.mil.)

NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY

NIST Special Publication 811 – Guide for the Use of the International System of Units (SI)

NIST Technical Note 1297 – Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results

(Copies of NIST documents are available online at http://www.nist.gov/pml/productsservices /special-publications-tutorials.)

2.1.2 Non-Government publications.

ASME B1.20.1 (2013) – Pipe Threads, General Purpose, Inch

(Copies of ASME documents are available from www.asme.org or ASME Information Central Orders/Inquiries, P.O. Box 2300, Fairfield, NJ 07007-2300.)

2.2 Order of precedence. In the event of conflict between the text of this CSS and the references cited herein, the text of this specification shall take precedence.

Nothing in this CSS, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3.0 REQUIREMENTS

3.1 Performance requirements.

3.1.1 Pressure requirement. The LPC shall be able to generate and control pressure bi-directionally from -60 to 60 InH2O both statically and dynamically at a stability of ±0.005% or less. The LPC shall have a vacuum pump capable of obtaining 15 micron or lower vacuum and field repairable.

3.1.2 Accuracy requirement. The LPC generated pressure output shall be accurate to ±0.009% of indicated value throughout its range.

3.2 Equipment components. Parts, materials, and process shall be as specified herein and shall permit the equipment to meet all applicable requirements of its class.

3.2.1 Finish. The equipment shall be the finish normally provided by the manufacturer.

3.2.2 Color. The color of the equipment and the transit cases shall be the color normally provided by the manufacturer.

3.2.3 Interchangeability. A model number shall be designated for all units provided.

All units and the replaceable assemblies, subassemblies, and parts comprising the unit shall be interchangeable on a noninterference basis with all such designated models provided.

3.2.4 Restricted materials. Restricted materials shall be as specified herein.

3.2.4.1 Material restricted for Navy use. The materials and parts specified in a through e shall not be used except as specified in this CSS. An exception is made for small lithium batteries used for memory backup.

a. Mercury, including mercury batteries

b. Radioactive material

c. Lithium electrochemical cells

d. Helium-3

e. Cadmium, except batteries

3.2.4.2 Other restricted materials and gases. Equipment shall not contain materials that promote the premature failure of the equipment or that present a health hazard under normal use or storage conditions as specified herein.

3.2.4.2.1 Organic materials. Equipment shall not contain materials prone to organic decay or that act as a nutrient for the growth of multicelled organisms.

3.2.4.2.2 Flammable materials. Equipment shall not contain materials that ignite into flames at operating or storage temperatures.

3.2.4.2.3 Explosive materials. Equipment shall not contain materials that explode at operating or storage temperatures.

3.2.4.2.4 Carcinogens. Equipment shall not contain materials identified by Occupational Safety and Health Administration (OSHA) in CFR Title 29 Part 1910 as cancer-producing substances (carcinogens).

3.2.4.2.5 Helium. Helium shall not be used as pressurizing gas in sealed units containing electron tubes. When necessary to use helium for leak detection purposes, exposure shall be limited to the time necessary for the test, followed by thorough purging. Helium-3 shall not be used due to limited availability.

3.2.4.3 Combination of materials. Equipment shall contain no combination of materials that cause deterioration of any material contained in the equipment due to the effects of outgassing.

3.2.5 Recycled, recovered, environmentally preferable, or biobased materials.

Recycled, recovered, environmentally preferable, or biobased materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.

3.3 Design and construction.

3.3.1 Operator adjustments. Equipment shall include built-in adjustments or compensating devices for any function or parameter that would exceed the specified tolerance within the calibration interval. Under all specified service conditions, the variation of any adjustment or control shall produce the desired control action to bring the equipment within tolerance.

3.3.2 Operator controls. Operating controls and indicators shall be readily accessible to the operator from the front of the equipment. The readings presented on the controls and indicators shall be available to the operator without conversion or calculation.

3.3.3 Internal wiring. Internal wiring shall not be damaged during normal maintenance, filter service and calibration.

3.3.4 Front panel display indicators. Front panel/control panel display indicators designed to present change-of-state information to the operator shall be distinguishable at a distance of 1 m in a maximum ambient light level of 100 foot-candles (fc) and a minimum light level of 1 fc. All display indicators shall be discernible at viewing angles from 0 degrees to 45 degrees.

3.3.5 Self-test capability. The equipment shall perform an automatic diagnostic self-test at startup. The self-test shall determine operational readiness and isolate faulty modules. At a minimum, the information provided shall indicate whether the equipment is functional or identify malfunctions. If failure occurs, the associated lowest replaceable unit (LRU) causing the malfunction shall be identified.

3.3.6 Pressure connections. The LPC pressure connections shall all be female pipe threads no larger than 1/4 inch NPT thread per ASME B1.20.1 (2013).

3.4 Electrical power sources and connections.

3.4.1 Electrical power source. The equipment shall operate from the input power conditions specified herein.

3.4.1.1 Nominal and alternate power source. The equipment shall operate at 120 volts root mean square (Vrms), single-phase, 60 Hz source (see to MIL-PRF- 28800G Table 1. Power source.). Equipment designed to operate from both external and internal power sources shall conform to specified performance and accuracy requirements when operated from the external source with the internal battery removed. There shall be an indication of the selected power source.

3.4.2 Electrical power connections. The requirements specified herein shall apply to equipment rated at 10 amperes (A) rms, or less. When single-phase operation is specified, the equipment shall operate with a ground at the primary power source whether from an ashore site that has “grounded circuitry” or afloat where the ship has “ungrounded circuitry."

3.4.2.1 Input power cable. The input power cable shall be a detachable power cable normally provided by the manufacturer.

3.4.2.2 Input power switch. For bench top equipment, the operator shall be able to energize the equipment from the front panel. A standby capability may be incorporated to activate and deactivate the equipment. If such a capability is provided, warnings shall be placed in the Use and Installation Manual and on the equipment to warn the operator of possible shock hazards during servicing, due to partially activated power supplies.

3.4.2.3 Indicators. The front panel shall include visual indicators that indicate when the equipment is energized.

3.5 Enclosure physical characteristics. A commercial-off-the-shelf (COTS) enclosure normally provided by the manufacturer that meets the requirements specified herein shall be provided. For the purpose of this CSS, the enclosure refers to the case for each individual major component. The enclosure provides protection for the individual system component during storage, handling, and use.

3.5.1 Dimensions. Maximum dimensions of the equipment including handles and covers, if any, shall not exceed 15 +/- 3 inches in height, 16 +/- 3 inches in width and 19 +/- 3 inches in depth.

3.5.2 Enclosure requirements. The degree of protection provided by the enclosure shall allow the equipment to pass the environmental tests applicable to the class as specified herein.

3.5.2.1 Corners. All corners shall be designed to preclude injury to personnel or damage to material. All corners shall be reinforced to protect the equipment from damage during shipping, handling and storage.

3.5.2.2 Connections and controls. All external electrical connections (except power connections) and operating controls shall be on the control panel. Electrical power connections shall be on the rear. All pressure connections shall be on the rear.

3.5.2.3 Chassis fasteners. The chassis shall be securely fastened within the enclosure conforming to the maintainability requirements of 3.11.2 Maintenance provisions.

3.6 Transit case. A transit case shall be provided to protect the contained equipment and accessories during shipping and storage. The case shall have a gasket to prevent entry of dirt or spray-type moisture or contaminates during shipping or storage. The transit case is not an integral part of the equipment. It need not provide for operational capability of the equipment when enclosed. The physical characteristics of the transit case shall be as specified herein.

3.6.1 Transit case cover. The transit case shall have a cover that can be closed and fastened. Fasteners shall allow for quick opening. If the cover is removable, fasteners shall not interfere with cover removal.

3.6.2 Transit case handles. One or more handles shall be provided. The number and location of handles shall be such that the load distribution per handle shall not exceed 20 kg (44 lbs). Handles shall be located above the equipment center of gravity to ensure carrying stability.

3.6.2.1 Hard transit case handles. The transit case shall include hinged handles with sufficient internal clearance to allow a block 44 mm (1.75 inches) by 106 mm (4.17 inches) in cross section with edges rounded to a 25 mm (1 inch) radius to pass through them. The grip portion of the handles shall be of a nonmetallic material at least 89 mm (3.5 inches) in length with a 19 mm (¾ inch) diameter or other approved cross section that is shaped to fit the hand comfortably.

Handles shall stop open at 90 degrees and have a retaining mechanism to keep them in the closed 90 degree position. Handles shall be recessed or protected. A handle located on the top of the enclosure shall be recessed to facilitate stacking.

3.6.3 Transit case corners. All hard-edged corners shall be designed to preclude injury to personnel or damage to material. All corners shall be adequately reinforced to protect the instrument from damage during shipping, handling and storage.

3.6.4 Watertight and airtight transit case pressure equalizing valve. Watertight and airtight transit cases shall have a mechanism for equalizing air pressure within the enclosure, when the enclosure is sealed. The mechanism shall not protrude beyond the transit case enclosure.

3.6.5 Transit case insert. A custom cut, high density, polyethylene black polyplank foam case insert shall be provided to organize and provide robust protection of the equipment while stored in the transit case.

3.7 Marking and identification.

3.7.1 Marking. Equipment shall be marked in a manner that does not adversely affect safety or performance.

3.7.1.1 Panel markings and processes. Panel markings shall enable the operator to identify the functions and the operations of all items requiring operator intervention.

3.7.2 Equipment identification. All equipment, excluding small accessory items contained within a reusable pouch or container, shall be identified with the items specified in a through d.

a. Manufacturer name

b. Equipment model number with installed options

c. Equipment nomenclature

d. Serial number

3.7.2.1 Identification plate. An equipment identification plate shall be permanently affixed to the equipment enclosure when the enclosure also serves as the transit case. The identification plate shall contain the information provided below in 3.7.2.1.1 Single case identification plate,

3.7.2.1.1 Single case identification plate.

a. Equipment model number with installed options

b. Equipment nomenclature

c. Manufacturer Commercial and Government Entity (CAGE) code

d. Serial number

3.7.3 Transit case identification plate. The equipment transit case shall include a permanently affixed identification plate that contains the information specified in

3.7.2.1 Identification plate. An acceptable method of attachment is to use 1/8” diameter solid or semi-tubular rivets and backup washers.

3.7.4 Item unique identification (IUID). DFARS clause 252-211.7003 is invoked. A two dimensional Unique Identification (IUID) data matrix conforming to MIL-STD- 130 shall be included on the identification plate.

3.8 Environmental requirements. Environmental performance requirements shall be as specified herein.

3.8.1 Environmental conditions. The equipment shall conform to the specified performance requirements, when subjected to the environmental conditions of this specification, after a 180-minute warm-up period preceded by a 2-hour not operating temperature stabilization period or when tested in accordance with the applicable test method.

3.8.2 Temperature and humidity (T/H). The temperature ranges and humidity limits for both operating and not operating conditions shall be as specified herein. A relative humidity (RH) of 95 percent (with the applicable tolerance) shall be achieved in a non-condensing condition.

3.8.2.1 Temperature, not operating. The equipment shall conform to the specified performance and accuracy requirements after being subjected to not operating temperatures in the range of -40 to 71 ºC.

3.8.2.2 Temperature, operating. The equipment shall conform to the specified performance and accuracy requirements while operating at temperatures ranging from 10 to 40 ºC.

3.8.2.3 Humidity. The equipment shall conform to the specified performance and accuracy requirements for conditions where the relative humidity is 5 to 95±5 percent in the temperature range of 10 to 30 ºC. At temperatures below 10 ºC, the humidity is uncontrolled, but the equipment shall conform to the specified performance requirements (after the specified warm-up period) and shall withstand the effects of humidity up to 100 percent. The equipment shall also be subjected to conditions where the relative humidity is 5 to 75±5 percent in the temperature range of 30 to 40 ºC, and where the relative humidity is 5 to 45±5 percent in the temperature range above 40 ºC (as appropriate for the specified class).

3.8.3 Mechanical shock.

3.8.3.1 Bench handling. The equipment shall conform to the specified performance and accuracy requirements and there shall be no damage to any controls, indicators, or fuse holders when subjected to the MIL-PRF-28800G paragraph

4.5.5.4.3 Bench handling test.

3.8.4 Dust exposure. Equipment enclosure with cover shall provide protection for the LPC from dust exposure. Class 1 equipment and equipment in hard transit cases shall conform to all requirements after exposure to dust when tested in accordance with MIL-PRF-28800G paragraph 4.5.6.4 Dust resistance test (Class 1 and hard transit cases).

3.9 Warranty label. Each LPC shall have a warranty label that specifies the model number, nomenclature, manufacturer, CAGE number, contract number, and warranty expiration date.

3.10 Calibration. The LPC shall meet the calibration requirements as specified herein.

For the purpose of this CSS, calibration refers to the process of comparing a test instrument with a calibration standard to determine the indicated error at specified test points. Alignment refers to the process of characterizing and adjusting a test instrument to cause it to indicate within its specified accuracy limits.

3.10.1 Calibration certificate. The equipment provided under this CSS shall have a current calibration certificate, with a calibration data sheet, traceable to the National Institute of Standards and Technology (NIST). Calibration must be 17025-2017 accredited through an ILAC recognized accrediting body. At any point, if the probability of false acceptance is greater than 2%, or the probability for false rejection in greater than 15%, approval must be given prior to completion of calibration.

3.11 Maintainability.

3.11.1 Preventive maintenance. Preventive maintenance shall not require more than

15 minutes per a 30-day period. Preventive maintenance shall not require breaking of the equipment seams where calibration seals would normally be placed.

3.11.2 Maintenance provisions. Equipment shall be as specified herein to facilitate maintenance:

a. Accessibility for maintenance. Equipment shall be designed to ensure that maintenance access can be accomplished utilizing non-proprietary tools.

The equipment shall be constructed so that no damage to any component shall occur and no permanent distortion to any structural member shall be caused during maintenance, calibration, and adjustment/alignment).

b. Maintenance and calibration aids. If required, circuit board extenders, special adapters, special tools, and patch or interface cables required for maintenance or calibration shall be provided. They shall be identified as a set with a unique part number and national stock number (NSN).

Stowage shall be in a reusable pouch or container.

c. Accessibility for repair. Equipment shall be designed so that subassemblies and chassis components can be removed without removing other hardwired subassemblies or components. Printed circuit cards shall be removable without the need to unsolder cables or interconnecting wiring. Printed circuit cards designed primarily to distribute power and signals to other printed cards are excluded from this requirement. When motherboards are used, they shall be accessible from both sides to facilitate troubleshooting or repair.

d. Adjustment/Alignment. The equipment shall be provided with any necessary instructions/software (to include programming commands, if not explicitly company proprietary and non-releasable to the Navy or any other commercial customer) needed to adjust/align the equipment so that the equipment meets its performance specifications after repair or due to the equipment failing performance verification.

1. Accessibility for adjustment. Equipment design shall permit adjustments to be made without removing any component, printed circuit cards, or subassembly. The use of extender cards is permitted.

2. Alignment instructions/software. If the equipment has alignment data stored in memory (e.g., EEPROM, data files, DACs, etc.) that is necessary for the equipment to meet its performance specification and modification of this alignment data is necessary after repair or a calibration failure, the equipment shall be as specified herein.

a) The equipment shall be designed and information provided so that the alignment can be performed by the Navy.

b) The alignment process shall be able to use existing Navy calibration standards that meet all necessary minimum performance requirements to satisfy a traceable calibration.

c) The alignment information provided shall include any necessary software (preferably software commands) usable via any allowable communications interface specified in this document (e.g. IEEE-488 data bus)

d) The alignment information shall include usage instructions required to perform an alignment. The instructions shall include any necessary setup instructions/software commands to put the equipment into the alignment mode; instructions/software commands necessary to gather new alignment data; any software algorithms required to format the alignment data into the appropriate data required by the equipment; and any instructions/software commands necessary to reprogram the equipment with the new alignment data.

3.12 Workmanship. The manufacture, assembly, and packaging of the items covered by this CSS shall be representative of the best commercial practices and shall conform to the requirements of this CSS. All items will remain securely held in place during normal transit. Adequate protection will be afforded for the equipment on all sides to avoid transient damage.

3.13 Use and installation manual and maintenance and service manual. The manufacturer’s Use and Installation Manual and the Maintenance and Service Manual shall provide guidance to perform certain levels of maintenance. This information includes parts lists to the component level; schematics and component layout drawings; block and schematic diagrams; a list of required test equipment and connection diagrams; sequential instructions for disassembly, repair, replacement, and reassembly, board-level maintenance and troubleshooting information; and step-by-step instructions for troubleshooting and fault isolation.