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43898

Federal Register / Vol. 86, No. 151 / Tuesday, August 10, 2021 / Proposed Rules
M = molecular weight of the hazardous material.

protective properties under normal conditions of transport.
7 Maximum capacity of drum: 450 L
119 gallons.
8 Maximum net mass: 400 kg 882
pounds.
50. In 178.609, revise paragraph g to read as follows:

48. In 178.505, redesignate paragraphs b6 and 7 as b7 and 8, respectively, and add new paragraph b6 to read as follows:

178.505

Standards for aluminum drums.

b
6 If materials used for body, heads, closures, and fittings are not compatible with the contents to be transported, suitable internal protective coatings or treatments must be applied. These coatings or treatments must retain their protective properties under normal conditions of transport.
7 Maximum capacity of drum: 450 L
119 gallons.
8 Maximum net mass: 400 kg 882
pounds.
49. In 178.506, redesignate paragraphs b6 and 7 as b7 and 8, respectively, and add new paragraph b6 to read as follows:
178.506 Standards for metal drums other than steel or aluminum.

b
6 If materials used for body, heads, closures, and fittings are not compatible with the contents to be transported, suitable internal protective coatings or treatments must be applied. These coatings or treatments must retain their
178.609 Test requirements for packagings for infectious substances.

g Where packaging is intended to contain dry ice, an additional drop test to that specified in paragraph d, and when appropriate, e or f of this section must be performed on one sample in one of the orientations described in d1 or d2 of this section, as appropriate, which is most likely to result in failure of the packaging. The sample must be stored so that all the dry ice dissipates prior to being subjected to the drop test.

51. In 178.703, revise paragraphs b6 introductory text and b7iv to read as follows:
178.703

Marking of IBCs.

b
6 For each composite IBC, the inner receptacle must be marked with at least the following information. The marking must be visible while inside of the outer receptacle. If the marking is not visible from the outer receptacle, the marking must be duplicated on the outer
receptacle and include an indication that the marking applies to the inner receptacle.

7
iv For IBCs designed for stacking, the maximum permitted stacking load must be displayed with the symbol. The mass in kilograms kg marked above the symbol must not exceed the load imposed during the design test, as indicated by the marking in paragraph a1vii of this section, divided by 1.8.
The letters and numbers indicating the mass must be at least 12 mm 0.48
inches.
52. In 178.705, revise paragraph c1iv introductory text to read as follows:
178.705

Standards for metal IBCs.

c
1
iv Minimum wall thickness. For metal IBCs with a capacity of more than 1500 liters, the minimum wall thickness must be determined as follows:
A For a reference steel having a product of Rm Ao = 10,000, where Ao is the minimum elongation as a percentage of the reference steel to be used on fracture under tensile stress Rm Ao = 10,000 145; if tensile strength is in U.S. Standard units of pounds per square inch, the wall thickness must not be less than:

WALL THICKNESS T IN MM
Types 11A, 11B, 11N
Unprotected
Protected
Unprotected
T = C/2000 + 1.5

T = C/2000 + 1.0

T = C/1000 + 1.0

PART 180CONTINUING
QUALIFICATION AND MAINTENANCE
OF PACKAGINGS
53. The authority citation for part 180
continues to read as follows:

Authority: 49 U.S.C. 51015128; 49 CFR
1.81 and 1.97.

54. In 180.207, revise paragraph d3 and add 7 to read as follows:

jbell on DSKJLSW7X2PROD with PROPOSALS4

Types 21A, 21B, 21N, 31A, 31B, 31N

180.207 Requirements for requalification of UN pressure receptacles.

d

VerDate Sep<11>2014

20:44 Aug 09, 2021

Jkt 253001

3 Dissolved acetylene UN cylinders:
Each dissolved acetylene cylinder must be requalified in accordance with ISO
10462:2013E IBR, see 171.7 of this subchapter. A cylinder requalified in accordance with ISO 10462E up until December 31, 2018, may continue to be used until the next required requalification. The porous mass and the shell must be requalified no sooner than 3 years, 6 months, from the date of manufacture. Thereafter, subsequent requalifications of the porous mass and shell must be performed at least once every ten years.

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Protected T = C/2000 + 1.5

7 UN cylinder bundles: UN cylinder bundles containing compressed, liquefied, and dissolved gas must be inspected and tested in accordance with ISO 20475:2018E IBR, see 171.7 of this subchapter.
Issued in Washington, DC on July 15, 2021, under authority delegated in 49 CFR 1.97.
William S. Schoonover, Associate Administrator for Hazardous Materials Safety, Pipeline and Hazardous Materials Safety Administration.
FR Doc. 202115425 Filed 8921; 8:45 am BILLING CODE 491060P

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