49 CFR 172 Special Provision 125 (Numeric Codes)

These provisions are multi-modal and apply to bulk and non-bulk packagings.

Code	125
Description	Lactose or glucose or similar materials may be used as a phlegmatizer provided that the substance contains not less than 90%, by mass, of phlegmatizer. These mixtures may be classified in Division 4.1 when tested in accordance with test series 6(c) of the UN Manual of Tests and Criteria (IBR, see §171.7 of this subchapter) and approved by the Associate Administrator. Testing must be conducted on at least three packages as prepared for transport. Mixtures containing at least 98%, by mass, of phlegmatizer are not subject to the requirements of this subchapter. Packages containing mixtures with not less than 90% by mass, of phlegmatizer need not bear a POISON subsidiary risk label.
HazMat with this Code	UN 0143 - Nitroglycerin, desensitized with not less than 40 percent non-volatile water insoluble phlegmatizer, by mass