BB-N-411C
January 3, 1973
SUPERSEDING
FED. SPEC. BB-N-4116
September 10, 1964
FEDERAL SPECIFICATION
NITROGEN, TECHNICAL
This specification was approved by the Commissioner, Federal Supply Services,
General Services Administration, for use of all Federal Agencies.
1. SCOPE AND CLASSIFICATION
1.1 Scope. This specification covers gaseous and liquid nitrogen.
1.2 Classification.
1.2.1 Types, grades, and classes. The nitrogen shall be of the following
types, grades, and classes, as specified (see 6.2):
Type I - Gaseous.
Type II - Liquid.
Grade A - 99.95 percent pure.
Grade B - 99.50 percent pure.
Grade C - 99.50 percent pure, moisture content not specified (type I only).
Class 1 - Oil free.
Class 2 - Oil tolerant (Type I only) (see 6.3).
2. APPLICABLE DOCUMENTS
2.1. Specifications and standards. The following specifications and
standards of the issue in effect on date of invitation for bids or request for
proposal, form a part of this specification to the extent specified herein:
Federal Specification
RR-C-901 - Cylinders, Compressed Gas: With Valve
of Plug and Cap; ICC 3AA.
Federal Standard
FED. STD. No. 123 - Marking for Domestic Shipment
(Civilian Agencies).
FSC 6830
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