UNITED STATES DEPARTMENT OF LABOR
JAMES J. DAVIS, Secretary
BUREAU OF LABOR STATISTICS
ETHELBERT STEWART, Commissioner

BULLETIN OF THE UNITED STATES |, | | N 512
BUREAU OF LABOR STATISTiCS 0.

SAFETY CODE SERIES

CODE FOR INFHTIFICATION
<7 CANISTERS

OF GAS.

NATIONAL SAFETY COUNCIL, SPONSOR

——

AMERICAN RECOMMENDED PRACTICE

Approved January 7, 1930
AMERICAN STANDARDS ASSOCIATION

*
a"
8p aed yr
Lares of)

MARCH, 1930