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NPFC - A-A-50554

FILTER, AIR-EXTENDED AREA, INITIAL INSTALLATION

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Organization: NPFC
Publication Date: 9 October 1997
Status: inactive
Page Count: 10
scope:

This specification covers replaceable, extended media area type air filters with externally supported, nonsupported, or self-supporting cartridges. The filters are installed in permanent metal holding frames and housings as required for use in air conditioning, heating, and ventilating systems for removing particulate matter found in the atmosphere.

Document History

A-A-50554A VALID NOTICE 1
September 22, 2022
Filter, Air-Extended Area, Initial Installation
A description is not available for this item.
A-A-50554
December 1, 2017
FILTER,AIR-EXTENDED AREA, INITIAL INSTALLATION
This specification covers replaceable, extended media area type air filters with externally supported, nonsupported, or self-supporting cartridges. The filters are installed in permanent metal...
A-A-50554
December 11, 2002
FILTER, AIR-EXTENDED AREA, INITIAL INSTALLATION
A description is not available for this item.
A-A-50554
October 9, 1997
FILTER, AIR-EXTENDED AREA, INITIAL INSTALLATION
This specification covers replaceable, extended media area type air filters with externally supported, nonsupported, or self-supporting cartridges. The filters are installed in permanent metal...

References

This document references:
ASTM SI10 - American National Standard for Use of the International System of Units (SI): The Modern Metric System
Published by ASTM on September 22, 2016
This document is the primary American National Standard on application of the metric system. It emphasizes use of the International System of Units (SI), which is the modern, internationally accepted...
This document references:
B209/B209M REV A - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
December 1, 2021
This specification2 covers aluminum and aluminum-alloy flat sheet, coiled sheet, and plate in the alloys (Note 1) and tempers shown in Tables 2, 3, 4, and 5, and in the following finishes: Plate in...
This document references:
B633 - Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel
January 1, 2023
This specification covers material and process requirements for electrodeposited zinc coatings applied to iron or steel articles to protect them from corrosion. This specification is not intended to...
This document references:
ASTM D92 - Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester
Published by ASTM on July 1, 2018
This test method describes the determination of the flash point and fire point of petroleum products by a manual Cleveland open cup apparatus or an automated Cleveland open cup apparatus. NOTE 1—The...
This document references:
MIL-STD-282 - Filter Units, Protective Clothing, Gas-Mask Components and Related Products: Performance Test Methods
Published by NPFC on December 22, 2015
This standard covers methods used in the routine testing and inspection of filter units, protective clothing, gas mask components and related products.
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