# Solkatronic Chemicals — Hazardous Materials Safety Interpretation

**Citation:** 01-0169  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2001-08-20

01-0169 response to Solkatronic Chemicals concerning 173.428.

## Document text

<<<PAGE 1>>>

of Transportation
U.S. Department
Washington, D.C.
Special Programs
Research and
Administration
AUG 2 0 2001
Mr. Eugene Y. Ngai
Vice President Corporate
Ref. No. 01-0169
Development and Technology
Solkatronic Chemicals
351 Philadelphia Avenue
Morrisville, PA 19067
Dear Mr. Ngai:
This is in response to your letter dated June 29, 2001,
Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).
requesting clarification of labeling requirements under the
Specifically, you ask if the empty label required under $ 173.428
for an empty radioactive material package may be used for a
radioactive hazardous material.
Cleaned and purged packaging that formerly contained a non-
The answer
is yes. A shipper may apply the empty label depicted
in § 172.450 to an empty packaging that formerly contained a
hazardous material of any hazard class.
I hope this satisfies your request.
Sincerely,,
Transportation Regulations Specialtst
Office of Hazardous Materials
Standards

<<<PAGE 2>>>

• E7/05/01_
12:43 FAX 608 989_2277—
DOT/OHNE/EASTERN
40002
Solkatronic Chemicals
351 Philadelphia Avenue
EASTER REGION
Morrisville, PA 19067
solkatronic
01 JUL -5 PM 12: 03
Tel: 215-736-0700
Fax: 215-736-3666
BAH
Toll Free: 800-521-3981
www.solkatronic.com
June 29, 2001
8173.428
Mr. David Clark
Labeling
US Department of Transportation
820 Bear Tavern Road
01-0169
Suite 306
West Trenton, NJ 08628
•
Dear Mr. Clark:
•
The US Transportation Regulations under 49CFR173.428 mandates the use of
an empty label for radioactives. Can this same label be used for cylinders that
have been cleaned and purged of their contents? Or is its use restricted only to
radioactives?
We have been using these labels to indicate empty cylinders as defined under
173.29.
Sincerely,
Eugene Y. Ngai
Vice President Corporate
Development &Technology
-
•
•
A Business Unit of Air Products & Chemicals, Inc.
Responsiole Garce

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2001/010169.pdf>
- Source ID: `phmsa`
- SHA-256: `258918bf95644cd6c1581a84575fc05969a12fb7efff3e51bf466cc81a9133ea`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T11:39:40.125Z
- Document slug: `phmsa-interpretation-01-0169`

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