[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR50.25-10]

[Page 117]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 50_GENERAL PROVISIONS--Table of Contents
 
       Subpart 50.25_Acceptance of Material and Piping Components
 
Sec. 50.25-10  Acceptance of piping components by specific letter or 
approved plan.

    (a) A manufacturer of a piping component which does not comply with 
an adopted industry standard and requires acceptance by specific letter 
or approved plan must do the following:
    (1) Submit an engineering type catalog or representative drawings of 
the component which includes the pressure and temperature ratings of the 
component and identify the service for which it is intended.
    (2) Identify materials used to fabricate the component. Materials 
must meet the requirements of subpart 56.60 of this chapter. If the 
component is not manufactured to accepted material specifications, the 
manufacturer must prove equivalency to accepted material specifications 
by comparing details of the materials' chemical composition, mechanical 
properties, method of manufacture, and complete chemical and mechanical 
test results with an accepted material specification.
    (3) Identify the industry standard, if any, to which the component 
is manufactured.
    (4) Submit a description of nondestructive testing performed on the 
component.
    (5) Submit a description of the marking applied to the component.
    (6) Submit information showing compliance with the requirements of 
part 56, subparts 56.15, 56.20, 56.25, 56.30, or 56.35 of this chapter, 
as applicable.
    (7) Submit any additional information necessary to evaluate the 
component's acceptability for its intended application.
    (b) If the component is found to comply with the requirements of 
this subchapter, the component is designated as acceptable for its 
intended installation. This acceptance is in the form of a specific 
letter relating directly to the particular component or in the form of 
an approved piping system plan in which the component is identified as 
an integral part.

[CGD 77-140, 54 FR 40599, Oct. 2, 1989]