PWS_Cleanroom-redacted.pdf

PERFORMANCE WORK STATEMENT (PWS)

On-Site Maintenance, Calibration and Recertification of Environmentally Controlled Spaces, (base with options)

1.0 DESCRIPTION OF SERVICES/INTRODUCTION: The Naval Surface Warfare Center

Code 617 requires a three year (base year with two on-year options) contract for the annual recertification of cleanroom spaces according to ISO 17025. The recertification of the cleanroom involves several tests of the space consisting of temperature, pressure, humidity, particle count and intensity of room lighting to ensure they are within tolerance as expected of a precision cleanroom. This purchase supports Noise-Tested (NT) bearings testing.

2.0 BACKGROUND: The Naval Surface Warfare Center, Carderock Division (NSWCCD)

Code 617 is the responsible activity for conducting inspection testing of bearings made to

MIL-B-17931E. Sample lots of bearings must be tested and satisfy specific vibration and dimensional requirements to be accepted as Navy noise-tested bearings. Dimensional measurements must be made at a standard temperature of (68 degrees F) and controlled humidity conditions of typically 40 % RH. The dimensional measurements are conducted in two spaces designated the Moore (M48) and Precision Laboratories. Periodic maintenance, calibration and certification are required to ensure accuracy of measurements.

Original design conditions for Moore Laboratory are temperature 68 degrees +/- 0.5 degrees

F, Humidity 40 +/- 5 % RH and Class 10,000 cleanliness. The original design conditions for the Precision Laboratory are temperature 68 degrees +/- 1.0 F, Humidity 40 +/- 5% RH and

Class 10,000 cleanliness.

3.0 OBJECTIVE: Two main categories of services apply for two cleanrooms (M48 Lab and

Precision Lab as historically named):

1: Inspection and Preventative Maintenance for Annual Recertification. The contractor shall perform an inspection of the environmental control system, make fine adjustments and perform fine-tuning of components.

2: System Recertification. Covers all standard tests for certifying cleanroom spaces.

3.1 Base Year services. The contractor shall provide:

3.1.1 Perform an inspection of the environmental control system and make fine adjustments and perform fine-tuning of components to include the following systems:

Central Blower System and Fans

Lubricate associated dampers and linkage

Measure and log motor design and operating amperage

Check and align couplings

Clean condensation pan and drain as required

Check cooling coils for cleanliness

Align blower and fan pulley as required

Check and tighten motor mounts and adjust vibration elimination system

Condensing Units

Record operating temperature

Conduct superheat analysis (analysis of refrigerant charge)

Record motor operating amperages and draw

Conduct electronic analysis for leaks at compressor

Megger compressor motor windings

Examine belt sheaves, bearing and couplings; and lubricate per manufacturer’s specifications

Check motor mounts and condenser housing assembly

Check and record operating pressures

Clean condenser coils

Temperature Controls

Calibration of sensors

Fine tuning all software application programs including NSWCCD ALC DDC system

Humidifiers

Check humidifier to ensure proper out-put and perform preventative maintenance in accordance with manufacturer’s instructions

Reheats

The reheats will be tested by ramping the unit up checking for proper out-put and noting for any parts not functioning properly

3.1.2. System Recertification: The Contractor shall conduct tests using a trained technician to verify and document that the spaces are operating to the original design specifications. All required instrumentation shall be provided by the contractor. All temperature instrumentation utilized for the certification procedures shall be calibrated and traceable to NIST. All calibrations have a statement of measurement uncertainty meeting the requirements of ISO/IEC 17025. The following procedures shall be used to perform the verification testing.

Temperature

Room Horizontal – A multipoint grid check will be performed utilizing highly accurate and stable temperature sensors with accuracies at least 0.05 degrees F.

The space will be divided into grids of floor area to form measurement locations.

Each space will be measured at Bench Height (42 inches). Above finished floor

(AFF) Readings will be recorded for intervals of 6 minutes at each point and continue for an 8-hour period.

Room Vertical – A multipoint grid check will be performed in the vertical plane.

The measurements shall be conducted near the center of the room approximately

12 inches AFF and be performed in 3-foot vertical increments to within approximately 12 inches from ceiling height. Each space will also be measured at Bench Height (approximately 42 inches AFF). The readings will be conducted for intervals of 6 minutes at each point and continue for an 8-hour period.

Test data evaluation (pass/fail):

Volumetric test – measurement by volume

If any sensor/s exceeds the specifications for two sample intervals the test fails

Stability test – average of all sensor readings

If the average combined sensors exceed the specifications for one sample interval, the test fails

Humidity

Calibrated electronic humidity instrumentation, accurate to +/-2% RH, shall be utilized to conduct the humidity test. One reading before the start of the temperature test and one reading after the temperature test will be performed. If either reading exceeds the humidity specifications by 1% the room fails the humidity test. In the event of a failed test condition the contractor shall provide a written estimate of the required work to correct the issue.

Laboratory Pressure

Calibrated electronic manometer instrumentation accurate to +/- 0.3%, shall be used to conduct a room pressure test. Space pressure must be positive relative to the outside of the room to pass the test. In the event of a failed test condition the contractor shall provide a written estimate of the required work to correct the issue.

Lights

The space will be sectioned into four quadrants. A calibrated light meter will be used for these measurements. A reading will be done in the center of each quadrant at Bench Height. An average of the four readings will represent the space.

Filtration

Particle counts will be taken at four locations in the space using a calibrated laser particle counter. Particle levels measured shall include 0,3, 0.5 and 5.0 micron per cubic foot of air.

3.1.3 Repair Work: If during the inspection, preventative maintenance or certification phase, any repair action is required/recommended the contractor shall provide a written estimate including required parts, labor and other associated costs.

3.2 The contractor shall accomplish:

3.2.1 Certificate of Calibration: A Certificate of Calibration shall be submitted to

NSWCCD no later than 30 calendar days after conclusion of the certification testing.

3.2.2 Certification Data Report: A final report shall be submitted to NSWCCD no later than 30 calendar days after conclusion of the certification testing. As applicable, the final report shall include grid and sample locations and the value of the reading for each sample. Also as applicable, the samples shall also be identified with respect to time.

3.3 Option year services:

3.3.1 Option year 1. For the first option year, the contractor shall provide the same services as listed in paragraphs 3.1 and 3.2, above.

3.3.2 Option year 2. For the second option year, the contractor shall provide the same services as listed in paragraphs 3.1 and 3.2, above.

4.0 SPECIAL QUALIFICATIONS: N/A

5.0 APPLICABLE DOCUMENTS:

Document

Type

No./Version Title Date

ISO Standard

ISO/IEC

17025

General requirements for the competence of testing and calibration laboratories

Nov

6.0 GOVERNMENT FURNISHED EQUIPMENT/PROPERTY/INFORMATION:

Service performed onsite, with contractor provided equipment and Government-owned consumables that are used in lab spaces.

7.0 DELIVERABLES: The contractor shall provide deliverables as described in the PWS/SOW and CDRLs. Format and delivery schedule for deliverables will be outlines in the CDRLs.

Number Name

A001 Certificate of Calibration

A002 Certification Data Report

8.0 PERIOD AND PLACE OF PERFORMANCE:

8.1 Period of performance:

8.1.1 The total period of performance is three years, consisting of one base year and two option years. The contractor shall complete services on the following schedule:

Base Year, from date of contract award plus one year period of performance.

Option Year #1, one year from date of option award.

Option Year #2, one year from date of option award.

8.2 Place of performance. All services will be completed at NSWCCD, Bldg. 60, Rm

150.

9.0 SECURITY REQUIREMENTS: Unclassified