SPMYM2-21-Q-2022 (SPECIFICATIONS) TEST WEIGHTS.pdf

Stackable Test Weight Specification

FOR

Trident Refit Facility Bangor (TRFB)

PREPARED BY:

Code 713

Bldg. 448, PSNS

Bremerton Washington 98314

SPECIFICATION PREPARED BY:

Project Engineer: Ryan Lewis

Reviewed By: Sam Birang (TRF Bangor)

Branch Head Supervisor: Bryce Perkins

1. SCOPE:

This specification is to provide requirements for the fabrication and documentation of test weights. The weights will be stackable. Each weight will be delivered to TRFB fully tested, fully assembled, painted, and ready for use.

2. REFERENCES:

• American Society of Testing and Materials (ASTM) A-36: Standard Specification for Carbon Structural Steel

• Puget Sound Naval Shipyard (PSNS & IMF) Drawing 4C30649

• The Society for Protective Coatings Surface Preparation (SSPC) SP-10: Near White Blast Cleaning

3. DESIGN AND FABRICATION REQUIREMENTS

3.1. Stackable Crane Test Weights:

3.1.1. There will be two (2) sets of weights with different dimensional restrictions. Each set shall have stackable weights as follows:

3.1.2. Set one (1), with a footprint of 48” x 48”

A. 4 x 6600 lb.

3.1.3. Set two (2), with a footprint of 36” x 32”

A. 1 x 1000 lb.

3.1.4. Weights from Set 2 must be able to stack on Set 1.

3.2. Drawing:

3.2.1. PSNS drawing 4C30649 shall be used for fabrication and testing purposes. At the request of the contractor the government will supply DXFs or STEP files.

3.3. Surface Texture:

3.3.1. Break all burrs and sharp edges liable to cause injury or damage to synthetic slings; all surfaces must be smooth and without surface defects, flaws or waviness. All welds in sling channels must be ground smooth.

3.3.2. Special emphasis should be paid to surface texture of areas which will contact the synthetic slings. These must be smooth and free of any sharp edges that could damage synthetic slings.

3.4. Tolerances:

3.4.1. Dimensional tolerances for final fabrication are shown on the above referenced drawing.

3.4.2. The tolerance for actual weight of each test weight is as follows: +0 lb./-25 lb. for Set 1 & +0 lb./-15 lb. for

Set 2. Note: The actual weight is the certified measured weight see paragraph 4.4.

3.4.3. Test weights shall be stackable and nest level with each other without deformation. For each test weight size profile, the vertical faces and sling channels of the test weights shall be aligned when stacked. Set 2 must be able to stack on Set 1, but is only required to have faces parallel, not aligned.

3.5. Material: Test weights shall be of all steel construction meeting ASTM A-36 requirements or better steel grade if approved by the government.

3.6. Welding: All welding performed for the fabrication of test weights shall be done in accordance with AWS D1.1.

When plates are welded together, welding must be continuous to help prevent corrosion between plates. All welds shall be visually examined per AWS D1.1.

3.7. Corrosion Protection:

3.7.1. Upon completion of fabrication, each test weight shall be blasted to Near-White Metal Blast Cleaning per

SSPC-SP 10, primed and painted with a paint system that is used in 2B environmental zones per SSPC or equivalent and has an expected life of 10+ years. The top coat color shall be yellow.

3.7.2. All paint used shall not contain lead, polychlorinated biphenyl (PCB), or chromates. (Submittal Required)

3.8. Markings:

3.8.1. Stencil the actual weight (in pounds) of each test weight on a minimum of two opposing outermost sides that are visible when weights are stacked. The markings shall be in a similar location on each test weight.

Color of letter shall be black and a minimum of 1.75 inches tall.

3.8.2. Each test weight will have a name plate welded to one side of the weight with “Property of TRFB” followed by a serial number in the format P-###. The serial numbers shall start at value P-200. The Contractor shall provide a list of the assigned serial numbers and each number’s associated weight and size.

(Submittal Required)

3.8.3. Mark vertical lines at the center of each side of each test weight to assist with stack alignment & centering of weights. Color of stripe shall black and be a minimum of 1 inch wide, but not greater than 3 inches wide.

4. SUBMITTALS

4.1. The Contractor shall submit to the Contracting Officer all items of technical documentation listed in this specification. The contractor shall ensure that all submittals are entirely legible and suitable for reproduction.

Compliance with the requirements of this specification will be determined by a review of the design and construction submittals by the Contracting Officer and by both field and acceptance inspections.

4.2. Schedule:

4.2.1. The contractor shall submit a timeline schedule which identifies key milestone events in the fabrication of the test weights (Submittal Required). At a minimum, the schedule shall include dates for the following events:

A. Post award tele-conference, to discuss project and answer any questions.

B. Fabrication initiation.

C. In-process Government Representative field (on-site) inspection and testing.

D. Fabrication completion.

E. Delivery (Arrival at destination Trident Refit Facility (TRF Bangor): 7000 Finback Circle, Silverdale, WA 98315-7000).

4.3. Coatings: Provide original equipment manufacturers’ specifications and Safety Data Sheets (SDS) for all primer and paint used on main paint system, stenciling and marking for each weight. (Submittal Required)

4.4. Weight Certification:

4.4.1. Certificate shall be hard copy original, indicating the measured weight of each test weight by serial number and be signed by the certifying official that is guaranteeing the accuracy of the document and measured weight (See paragraph 4.4.2). (Submittal Required)

4.4.2. The certificate shall indicate each test weight was measured using calibrated equipment traceable to the

National Institute of Standards and Technology, with a minimum accuracy of +/-0.2% (i.e. indicated weight shall be within +/-0.2% of actual weight).

4.4.3. The certificate shall include the following for all of the calibrated measurement equipment used:

A. Original Equipment Manufacturer (OEM) B. Serial number C. Model number D. Accuracy E. Calibration date

4.5. Welding:

4.5.1. Contractor will submit Welding Procedure Specification (WPS) per AWS D1.1 for each material welded. All welds shall be of the pre-qualified type. The Welding Procedure Qualification Test Report must be approved prior to any welding. (Submittal Required)

4.5.2. All records of visually examined welds will be submitted, including any re-examination of deficient welds found after rework if applicable. (Submittal Required)

4.5.3. Welding operator and/or welder certifications will be submitted for all WPS used. Welding Personnel Qualifications must be approved by the Government prior to any welding. (Submittal Required)

Specification Section

Submittal Required Description Due Date Number of Copies

4.2.1 Fabrication Schedule Describes major fabrication milestones 30 days after contract award

4.5.1 Welding Procedure

Specification

Per. AWS D1.1 10 days before Welding

4.5.2 Weld Examination Records of all visually examined welds 10 days after Welding

4.5.3 Welding Operator

Certifications

Personnel qualifications 10 days before Welding

4.3 Paint SDS Safety Data Sheets 10 days before

shipping

3.7.2 Prohibited Materials

Guarantee

Guarantee that all paints used to not contain the prohibited ingredients

10 days before shipping

4.4.1 Weight Certification Signed certificate of weight value 10 days before shipping

3.8.2 Serial Number List List of serial numbers and weight profile and value

10 days before shipping

5. TESTING, INSPECTION AND ACCEPTANCE TERMS

5.1. In-process Inspection and Testing (Field):

5.1.1. The Contractor shall inspect the test weights for form, fit, and function. The contractor shall ensure the test weights nest when stacked, including Set 2 weights stacked on Set 1, and are level when lifted by the sling channels. After the Contractor’s preliminary inspection and operational test of each weight is complete, the Contactor shall notify the Government.

5.1.2. The contactor shall test the weights in the following manner to ensure adequate strength and construction:

5.1.2.1. Weights shall be lifted by “synthetic” slings only.

5.1.2.2. Four 6600 lb. weights will be stacked on top of each other.

5.1.2.3. One 1000 lb. weight stacked on top of the 6600 lb. weights stack (See sheet 8 of reference DWG 4C30649). Note: Each of 6,600 Lb. test block must be subjected to the entire load test stack as shown on sheet 8 of the reference drawing (Total test weight for each of the 6,600 Lb. test weight is: 27,400 Lbs.).

5.1.2.4. Hold the test load for 10 minutes.

5.1.2.5. Acceptance criteria shall be no structural damage or deformation is allowed. Certificate of the

“Satisfactory” proof/load testing of each test weight is required. [SUBMITTAL REQUIRED]

5.1.3. At the option of the Government, a site inspection will be conducted by the Government along with the Contractor. The Contractor will make the test weights available for Government witnessing of the inspection and operational testing. The Contractor will be prepared to stack / un-stack the test weights and lift test weights using slings in sling channels as needed during the visit. Upon completion of the field inspection and testing, a “punch” list of deficient items will be compiled and signed by the Government representative (if applicable) and forwarded to the Contracting Officer.

5.2. Warranty: The Contractor's warranty shall apply only to those defects discovered by either the Government or the Contractor within twelve (12) months after government acceptance.

5.3. Final Inspection and Acceptance (Destination):

5.3.1. Inspection and acceptance of the supplies or services to be furnished hereunder shall be made at destination by the receiving activity. Receiving activity shall execute acceptance certificate on the applicable inspection and receiving report form: DD Form 1155, Standard Form 44, DD form 250, or the Wide Area Workflow (WAWF) Receipt and Acceptance Receiving Report.

5.3.2. Following completion of Government inspection, final Government acceptance of the weights shall take place only after the following conditions are met:

5.3.2.1. Contractor receives Government approval for all submittal items.

5.3.2.2. The weights pass a final inspection by the Government.

5.3.2.3. All deficient items have been corrected or methods of resolution have been determined. Deficient items not corrected prior to the Government’s acceptance shall be carried as warranty items, which will be corrected by the Contractor.