Contamination Control.pdf

DIRECTIVE NO. 549-PG-8700.0.1D APPROVED BY Signature: Original signed by:

EFFECTIVE DATE: September 18, 2020 NAME: David Robinson EXPIRATION DATE: September 18, 2025 TITLE: Code 549 Branch Head

CHECK THE GSFC DIRECTIVES MANAGEMENT SYSTEM AT

http://gdms.gsfc.nasa.gov TO VERIFY THAT THIS IS THE CORRECT VERSION PRIOR TO USE.

08/16

Procedures and Guidelines (PG)

COMPLIANCE IS MANDATORY

Responsible Office: Code 549/Environmental Test Engineering and Integration Branch Title: Contamination Control

PREFACE

P.1 PURPOSE

This document defines Code 549 Contamination Control roles and responsibilities for certification of cleanrooms, garments, etc. in support of GSFC cleanrooms/cleantents/clean benches.

P.2 APPLICABILITY

This procedure applies to Code 549.

P.3 AUTHORITY

549-PG-8700.1.1, Environmental Test & Engineering Integration Process

P.4 APPLICABLE DOCUMENTS AND FORMS

N/A

P.5 CANCELLATION

549-PG-8700.0.1C

P.6 SAFETY

N/A

P.7 TRAINING

Personnel entering cleanrooms, including CC personnel, should take the access training in SATERN (Course GSFC-004-06). Additional or separate training may be required for certain projects. Check with the project occupying the space for specifics. Personnel shall pass the course test with a score of at least 70%.

DIRECTIVE NO. 549-PG-8700.0.1D Page 2 of 5

EFFECTIVE DATE: 09/18/2020

EXPIRATION DATE: 09/18/2025

In order for CC personnel to be qualified to perform their duties, on the job training is required.

P.8 RECORDS

Record Title Record Custodian Retention

Training records Supervisor or SATERN

*NRRS 3/3400/33C- Destroy or delete 5 years after separation of employee or when no longer needed, whichever comes first.

Cleanroom Consumable test data Lab Manager and/or Supervisor

*NRRS 1/1740/124- Retire to FRC when 3 years old.

Destroy when 10 years old.

Witness (NVR) plate data Lab Manager and/or Supervisor

*NRRS 1/1740/124- Retire to FRC when 3 years old.

Destroy when 10 years old.

Cleanroom Garment test data Lab Manager and/or Supervisor

*NRRS 1/1740/124- Retire to FRC when 3 years old.

Destroy when 10 years old.

Cleanroom Certification data Lab Manager and/or Supervisor

*NRRS 1/1740/124- Retire to FRC when 3 years old.

Destroy when 10 years old.

* NRRS 1441.1 – NASA Records Retention Schedule

P.9 MEASUREMENT/VERIFICATION

N/A

PROCEDURES

1 Contamination Control Cleanroom Access Training Program

Unless otherwise required by the facility owners, cleanroom access training is required for personnel entering the cleanrooms and cleantents. (Any reference to cleanrooms throughout this document, also implies cleantents and clean benches) However, Code 549 or their designees can escort untrained personnel into a cleanroom when authorized by the project.

If a sign-in log is provided, the authorized escort should write their control number (located on the back of the Cleanroom Access Training Card) on the sign in log in the Escort Control No. column next to the visitor's name and escort the visitor into the cleanroom.

DIRECTIVE NO. 549-PG-8700.0.1D Page 3 of 5

2 Work Flow

2.1 Contamination Control Customer Requests and Implementation

The customer requesting contamination control services from Code 549 CC should complete a work request. Services included, but are not limited to: general equipment cleaning, precision cleaning, facility cleaning, facility certification, tape lift, etc. Special instructions or reference to a project’s Contamination Control Plan and/or to a project’s Work Order Authorization can be included on this document. If no special instructions are included standard clean practices will be used.

2.2 Chemical Analysis Laboratory Request and Implementation

When Code 549 CC receives a request for quantitative and/or qualitative chemical analysis, customers should provide detailed information on the service requested. When the analysis is completed, the laboratory manager communicates the end product results to the customer by email, by written report or verbally. Examples of chemical analysis requests may include:

witness plate or witness foil rinse analysis, flight hardware rinse, swab or wipe analysis, associated materials screening analysis, etc.

The Chemical Analysis Laboratory screens all cleanroom consumables per lot number and a representative amount of cleanroom garments for chemical species like silicones, which are deemed harmful to critical flight hardware and/or ground support equipment.

3 Cleanroom Garments and Consumables

Code 549 provides screened cleanroom garments and consumables to clean facilities, clean benches or clean areas throughout GSFC per customer request. Unless specified by the customer, the cleanroom garments and consumables shall be stocked, tested, stored, controlled and delivered to each cleanroom by Code 549 or their designated representative.

4 Certification and Monitoring

Cleanrooms, cleanbenches and clean areas throughout GSFC can be certified under the guidance of IEST ISO 14644-1 and the Code 549 Certification and Monitoring of Cleanrooms Manual. Code 549 will supply the necessary equipment, i.e. calibrated air particle counter and/or air velocity meter, to perform certification. Certification is performed routinely, and can also be performed per the customer’s request.

The air particle counts for cleanrooms, cleanbenches and clean areas throughout GSFC can be measured under the guidance of Code 549 Certification and Monitoring of Cleanrooms Manual, by Code 549, or their designated representatives. Code 549 will supply the necessary equipment, i.e.

calibrated air particle counter and/or air velocity meter, to take measurements. These evaluations can be performed routinely or per the customer’s request.

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5 Contamination Control and Cleanroom Operations Engineering Oversight Code 549 or their designated representative shall provide flight hardware and ground support equipment contamination control and cleanroom operations engineering oversight per the request of the customer.

DIRECTIVE NO. 549-PG-8700.0.1D Page 5 of 5

CHANGE HISTORY LOG

Revision Effective Date Description of Changes

Baseline

04/30/2012 Initial Release

A 09/08/2014 Made minor editorial changes to document.

B

04/17/2015 Added several new headings in “Procedure” and added new Appendix

C 7/30/2015 Updated to remove documents not under Code 549 control, changed records requirements, and added required training.

D 09/18/2020 Revalidation w/ Administrative changes Newest template

For Best Practices refer to:

https://gs279gdmsias.gsfc.nasa.gov/GDMSv2/downloadFile.htm?docId=28819