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ACS grade is the highest level of purity, and meets the standards set by the American Chemical Society (ACS). The official descriptions of the ACS levels of purity is documented in the Reagent Chemicals publication, issued by the ACS. [3] [4] It is suitable for food and laboratory uses. Reagent grade is almost as stringent as the ACS grade.
USP establishes documentary (written) and reference (physical) standards for medicines, food ingredients, dietary supplement products, and ingredients. These standards are used by regulatory agencies and manufacturers to help to ensure that these products are of the appropriate identity, as well as strength, quality, purity, and consistency.
The ingredient name is often followed by the initials NF, indicating that it conforms to the specifications of the National Formulary. Emulsifying wax is created when a wax material (either a vegetable wax of some kind or a petroleum-based wax) is treated with a detergent (typically sodium dodecyl sulfate or polysorbates ) to cause it to make ...
NOFORN (NF): Distribution to non-US citizens is prohibited, regardless of their clearance or access permissions (NO FOReign National access allowed). NOCONTRACTOR: Distribution to contractor personnel (non-US-government employees) is prohibited, regardless of their clearance or access permissions.
The Food Protection Committee started in 1961 to provide objective quality standards for food-grade chemicals. Parts of the first edition were published in loose-leaf form between 1963 and 1966. The scope of the first edition is limited to substances amenable to chemical characterization or biological standardization which are added directly to ...
NF: National Fine: The [U.S.] National Fine series of pre-1949 corresponds today to the Unified National Fine (UNF) of the Unified Thread Standard. NL or N/L: notes list: A list of notes that appears somewhere on the drawing, often in the upper left corner. NOM [2] nominal: NORM or NORMD: normalized: referring to normalization, a stress ...
The set of terms below were proposed in 1949 by AB Bookman's Weekly.They were adopted by the bookselling community and are still in use today. [1] [2] [3]As new means that the book is in the state that it should have been in when it left the publisher.
The 1699 Edinburgh Pharmacopoeia. A pharmacopoeia, pharmacopeia, or pharmacopoea (from the obsolete typography pharmacopœia, meaning "drug-making"), in its modern technical sense, is a book containing directions for the identification of compound medicines, and published by the authority of a government or a medical or pharmaceutical society.