GroundRules
15 CFR 230.2: Identification of Standard Reference Materials.
Where this section sits in the code
- Title 15—Commerce and Foreign Trade
- Subtitle B—Regulations Relating to Commerce and Foreign Trade
- CHAPTER II—NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE
- SUBCHAPTER B—STANDARD REFERENCE MATERIALS
- PART 230—STANDARD REFERENCE MATERIALS
- Subpart A—General Information
The SRM's are listed by category in SP 260 and by sequential number in the supplements. The number uniquely identifies a particular SRM. Renewals are indicated by the addition of a letter to the original number. Thus, 11a is the first, 11b the second, and 11c the third renewal of SRM 11, Basic Open-Hearth Steel, 0.2 percent carbon. In this way, a particular number or number and letter always represent a material of fixed or approximately fixed composition.
Collected 2026-08-27T02:24:24Z. Source file · JSON