Section 172.102 49 CFR Ch. I (10-1-18 Edition) A191 Notwithstanding the Division 6.1 subsidiary risk for this description, the toxic subsidiary risk label and the requirement to indicate the subsidiary risk on the shipping paper are not required for manufactured articles containing less than 5 kg (11 pounds) of mercury. A200 These articles must be transported as cargo and may not be carried aboard an aircraft by passengers or crewmembers in carry-on baggage, checked baggage, or on their person unless specifically authorized in Section 175.10. A210 This substance is forbidden for transport by air. It may be transported on cargo aircraft only with the prior approval of the Associate Administrator. A212 - UN 2031, Nitric acid, other than red fuming, with more than 20% and less than 65% nitric acid - intended for use in sterilization devices only, may be transported on passenger aircraft irrespective of the indication of - forbidden - in columns (9A) of the Section 172.101 table provided that: a. Each inner packaging contains not more than 30 mL; b. Each inner packaging is contained in a sealed leak-proof intermediate packaging with sufficient absorbent material capable of containing the contents of the inner packaging; c. Intermediate packagings are securely packed in an outer packaging of a type permitted by Section 173.158(g) of this subchapter which meet the requirements of part 178 of this subchapter at the Packing Group I performance level; d. The maximum quantity of nitric acid in the package does not exceed 300 mL; and e. Transport in accordance with this special provision must be noted on the shipping paper. (3) - B - codes. These provisions apply only to bulk packagings. Except as otherwise provided in this subchapter, these special provisions do not apply to UN portable tanks or IBCs: Code/Special Provisions B1 If the material has a flash point at or above 38 SectionC (100 SectionF) and below 93 SectionC (200 SectionF), then the bulk packaging requirements of Section 173.241 of this subchapter are applicable. If the material has a flash point of less than 38 SectionC (100 SectionF), then the bulk packaging requirements of Section 173.242 of this subchapter are applicable. B2 MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo tanks are not authorized. B3 MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo tanks and DOT 57 portable tanks are not authorized. B4 MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo tanks are not authorized. B5 Only ammonium nitrate solutions with 35 percent or less water that will remain completely in solution under all conditions of transport at a maximum lading temperature of 116 SectionC (240 SectionF) are authorized for transport in the following bulk packagings: MC 307, MC 312, DOT 407 and DOT 412 cargo tanks with at least 172 kPa (25 psig) design pressure. The packaging shall be designed for a working temperature of at least 121 SectionC (250 SectionF). Only Specifications MC 304, MC 307 or DOT 407 cargo tank motor vehicles are authorized for transportation by vessel. B6 Packagings shall be made of steel. B7 Safety relief devices are not authorized on multi-unit tank car tanks. Openings for safety relief devices on multi-unit tank car tanks shall be plugged or blank flanged. B8 Packagings shall be made of nickel, stainless steel, or steel with nickel, stainless steel, lead or other suitable corrosion resistant metallic lining. B9 Bottom outlets are not authorized. B10 MC 300, MC 301, MC 302, MC 303, MC 305, and MC 306 and DOT 406 cargo tanks, and DOT 57 portable tanks are not authorized. B11 Tank car tanks must have a test pressure of at least 2,068.5 kPa (300 psig). Cargo and portable tanks must have a design pressure of at least 1,207 kPa (175 psig). B13 A nonspecification cargo tank motor vehicle authorized in Section 173.247 of this subchapter must be at least equivalent in design and in construction to a DOT 406 cargo tank or MC 306 cargo tank (if constructed before August 31, 1995), except as follows: a. Packagings equivalent to MC 306 cargo tanks are excepted from the certification, venting, and emergency flow requirements of the MC 306 specification. b. Packagings equivalent to DOT 406 cargo tanks are excepted from SectionSection 178.345-7(d)(5), circumferential reinforcements; 178.345- 10, pressure relief; 178.345-11, outlets; 178.345-14, marking, and 178.345-15, certification. c. Packagings are excepted from the design stress limits at elevated temperatures, as described in Section VIII of the ASME Code (IBR, see Section 171.7 of this subchapter). However, the design stress limits may not exceed 25 percent of the stress for 0 temper at the maximum design temperature of the cargo tank, as specified in the Aluminum Association-s - Aluminum Standards and Data - (IBR, see Section 171.7 of this subchapter). B14 Each bulk packaging, except a tank car or a multi-unit-tank car tank, must be insulated with an insulating material so that the overall thermal conductance at 15.5 SectionC (60 SectionF) is no more than 1.5333 kilojoules per 362 VerDate Sep<11>2014 16:41 Oct 31, 2018 Jkt 244226 PO 00000 Frm 00372 Fmt 8010 Sfmt 8010 Q:\49\49V2.TXT PC31