---
kind: "section"
citation: "46 C.F.R. § 162.161-6"
title: "46"
number: "162.161-6"
heading: "Tests for approval."
url: "https://uscodex.org/cfr/46/162.161-6"
---

# §162.161-6. Tests for approval.


Prior to approval by an independent laboratory each system must:

- (a) **Satisfy the test method of MSC/Circ.** 848 as amended by MSC.1/Circ. 1267 (both incorporated by reference, see [§ 162.161-2](/cfr/46/162.161-2.md)), except that:
  - (1) The Fire Type A (Tell tale) test must be conducted when the charged system cylinders have been conditioned for 24 hours at 32 °F or at the expected service temperature, if lower than 32 °F.
  - (2) [Reserved]
- (b) Satisfy the following test requirements as indicated in UL 2166 (incorporated by reference, see [§ 162.161-2](/cfr/46/162.161-2.md)) for halocarbon systems or UL 2127 for inert gas systems (incorporated by reference, see [§ 162.161-2](/cfr/46/162.161-2.md)):
  - (1) Nozzle distribution;
  - (2) Flow calculation method verification to determine that the manufacturer's calculation method accurately predicts the discharge time, nozzle pressure, and distribution of the extinguishing agent;
  - (3) Salt spray corrosion resistance for marine-type systems;
  - (4) Vibration resistance of installed components for marine-type systems; and
  - (5) Any additional tests contained in UL 2166 for halocarbon systems or UL 2127 for inert gas systems, as required for listing by the independent laboratory.
- (c) Equivalent length of installed components must be identified and included in the test report in accordance with UL 2166 (incorporated by reference, see [§ 162.161-2](/cfr/46/162.161-2.md)) for halocarbon systems or UL 2127 (incorporated by reference, see [§ 162.161-2](/cfr/46/162.161-2.md)) for inert gas systems.

## Notes

### Source

Source: USCG-2006-24797, 77 FR 33886, June 7, 2012, unless otherwise noted.

### Authority

Authority: 33 U.S.C. 1321(j), 1903; 46 U.S.C. 3306, 3703, 4104, 4302; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation 00170.1, Revision No. 01.4.