A8_DRAFT SOW_N6426726R1000.pdf

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STATEMENT OF WORK

MASS COMPARATOR WITH EXTERNAL DRAFT SHIELD FOR DWT

1. INTRODUCTION

The Naval Surface Warfare Center, Corona Division (Corona Division) Division, Measurement Science and Engineering Department perform Metrology, Test, and Monitoring Systems Assessment supporting the Naval Sea Systems Command (NAVSEA) Metrology and Calibration (METCAL) Program. Measurement Science and Engineering Department sets the measurement science and calibration standards to support proper weapons operation, interoperability and peak readiness for the fleet.

2. BACKGROUND

Currently, Navy Calibration Laboratories cannot calibrate their Dead Weight Tester (DWT) weight sets in-house.

Our existing mass comparators do not meet the necessary accuracy or size requirements for these critical weight sets. The weight sets are sent to the Navy Primary Calibration Laboratory adding delays in productions and costly shipping expenses. The procurement of new mass comparators with external draft shields is critical to resolve these issues. New mass comparators with external draft shields and marble tables will enable the Navy laboratories to perform in-house calibration of DWT weight sets. This will provide direct benefits by improving operational readiness; significantly reduce DWT downtime and ensure faster availability; it will provide cost savings by eliminating recurring shipping and administrative expenses; and it will enhance laboratories flexibility by providing greater control over calibration schedules, increasing efficiency and mission support.

3. SCOPE

The scope of this effort is to procure via a Firm Fixed Price contract for eight (8) mass comparators, eight (8) external draft shields, and eight (8) marble tables for NAVSEA Navy Calibration Laboratories.

4. APPLICABLE DOCUMENTS

Document Type/No.

Description Document Date

MIL-STD-130N

w/ CHANGE 1

Identification Marking of US Military Property https://quicksearch.dla.mil/Transi ent/BC03F1C79CC343B288C56 D79BB4B24C7.pdf

16 Nov 2012

MIL-PRF-28800G Test Equipment for use with Electrical and Electronic Equipment https://quicksearch.dla.mil/Transi ent/80ADDFBF7095453EB2AC F3E93F47E7D4.pdf

17 Nov 2021

MIL-PRF-38793C Technical Manuals: Calibration Procedures -Preparation https://quicksearch.dla.mil/Transi ent/1737F9E0F6B145FFBC41D AE59F4885DD.pdf

19 Aug 2008

MIL-HDBK-781B Handbook for Reliability Test Methods, Plans, and Environments for Engineering Development, Qualification, and Production.

https://quicksearch.dla.mil/Transi ent/5EBFA9C1A31F45AE8ED8 55F2C4D93ADF.pdf

12 Feb 2025

NIST Special Publication 811

Guide for the Use of the International System of Units (SI) https://nvlpubs.nist.gov/nistpubs/ Legacy/SP/nistspecialpublication 811e2008.pdf

March 2008

NIST Technical Note 1297

Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results https://nvlpubs.nist.gov/nistpubs/ Legacy/TN/nbstechnicalnote129 7.pdf

September

5. REQUIREMENTS

The Contractor shall provide the following supply items:

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Description Quantity Mass Comparators

8 Each

External draft shields

8 Each

Marble tables 8 Each

All items shall meet the Specifications described in Paragraph 5.1 of this Statement of Work (SOW).

5.1 Specifications

Mass Comparator The Contractor shall provide a Mass Comparator which shall meet the salient characteristics provided below:

Maximum Capacity: 2.3 kg Readability: 0.1 mg Repeatability ABA at Nominal Load: 0.25 mg Repeatability ABA at Low Load: 0.25 mg Settling Time: 3.5 s Minimum Weight (USP, 0.1%, typical): 0.6 g Linearity: 1 mg Repeatability, typical: 0.3 mg Adjustment: Internal (automatic/FACT) Interfaces: Ethernet (LAN) and/or RS232 Display: >/= 7” color touchscreen display User Management: Password protection Unlimited Amount of Users User Rights Repeatability nominal load: 0.6 mg OIML Class: E1, E2, F1, F2, M1, M2, M3 Software: Mass Calibration Software Compliance Options Data Integrity Log history (21 CFR Part 11 Compliant) Log history (Basic Metadata) Password protection Balance Type: Precision Balance Weighing Pan Diameter: 130 mm Features Leveling guidance Password protection Supports 21 CFR Part 11 (LabX compatible) User management Documentation Options: Automatic Documentation (21 CFR Part 11 Compliant) Basic Electronic Documentation Printing 21 CFR Part 11 Compliant Weighing: Yes

External Draft Shield The Contractor shall provide an External Draft Shield which shall meet the salient characteristics provided below:

Dimensions: 450mm X 450mm X 300mm Weight: 11 kg;

Shall be fully compatible with the Mass Comparator

Marble Table The Contractor shall provide a Marble Table which shall meet the salient characteristic provided below:

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Dimensions: 35”W X 24”L X 31”H

5.2 Logistic Requirements

5.2..1 The Contractor shall provide operator/service manual(s) required to be supplied with each calibration standard. At a minimum, these manual(s) shall contain information on operator/maintainer safety, theory of operation, troubleshooting, preventative maintenance, periodic maintenance, calibration, maintainability data, and operational instructions. The manuals can be either print or electronic media format on either CD-ROM or DVD disks. (CDRL T001)

5.2.2 The Contractor shall ensure the units are provided with a manufacturer’s standard warranty, of one (1) year minimum after installation and acceptance by the Navy.

5.2.3 A calibration certificate with a report referencing actual data shall be provided by the vendor to the Government for each mass comparator installed. (CDRL A001)

5.2.4 Calibration of all new standards must be traceable to the National Institute of Standards and Technology (NIST) and result in an Accredited Certificate/Report of Calibration.

5.2.5 The Contractor shall provide a calibration label which shall be placed on each mass comparator installed.

5.2.6 The Contractor shall provide a Repairable Parts list to the Government for each mass comparator installed.

(CDRL A002)

5.2.7 The Contractor shall provide a Software/Firmware Version Description to be provided with each system delivered. The Software/Firmware version shall be the same on all delivered systems. (CDRL A003)

5.2.8 The Contractor shall provide a training manual to be supplied with each calibration standard. Training manual shall include instructions on how to operate, maintain and calibrate the system. A complete review of all paragraphs in the operator/service manual provided under CDRL T001 shall be included in the training. Instructions and demonstrations on all software functions and menu items resident on the system shall be included in the training.

Instructions for periodic and incident-based preventative maintenance shall be included. A demonstration of the calibration of the comparator standard shall be provided. The training manuals shall be a hard copy or an electronic media format on either CD-ROM or DVD disks. (CDRL A004)

6. GOVERNMENT FURNISHED PROPERTY

6.1 Government Furnished Material

Not applicable (N/A).

6.2 Government Furnished Equipment

N/A.

6.3 Government Furnished Information

N/A.

7. DELIVERABLES

The deliverable hardware systems for this contract are described in paragraphs 5.2.3 through 5.2.8. In addition, for all systems delivered, there are data deliverables for each system installed. The relevant Contract Data Requirement Lists (CDRLs) are listed in the following table. Format and delivery schedule for deliverables shall be outlined in CDRLs. Each type of CDRL shall be considered a Firm Fixed Price (FFP) element for each system.

NUMBER NAME

T001 Technical Manual DI-TMSS-80527C

A001 Calibration Certificate and Report DI-QCIC-80798B

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A002 Repairable Parts List DI-ILSS-80134A

A003 Software Version Description DI-IPSC-81442A

A004 Training Manual DI-MISC-81459A