Precursor definition

Precursor means any chemical reactant which takes part at any stage in the production by whatever method of a toxic chemical. This includes any key component of a binary or multicomponent chemical system.

Precursor means a substance, other than a legend drug, which is an immediate chemical intermediate that can be processed or synthesized into a legend drug, and is used or produced primarily for use in the manufacture of a legend drug by persons other than persons licensed to manufacture such legend drugs by the Idaho board of pharmacy, registered by the state board of health and welfare, or licensed to practice pharmacy by the Idaho board of pharmacy.

Precursor means pollutant which is transformed in the atmosphere (later in time and space from point of emis- sion) to form (or contribute to the for- mation of) a criteria pollutant.(c) Applicability. This section shall apply to any State in which an affected area is located and for which the Ad- ministrator has made one of the fol- lowing findings, with respect to any part D SIP or SIP revision required under the Act:(1) A finding that a State has failed, for an area designated nonattainment under 42 U.S.C. 7407(d), to submit a plan, or to submit one or more of the elements (as determined by the Admin- istrator) required by the provisions of the Act applicable to such an area, or has failed to make a submission for such an area that satisfies the min- imum criteria established in relation to any such element under 42 U.S.C. 7410(k);(2) A disapproval of a submissionunder 42 U.S.C. 7410(k), for an area des- ignated nonattainment under 42 U.S.C. 7407(d), based on the submission’s fail- ure to meet one or more of the ele- ments required by the provisions of the Act applicable to such an area;(3)(i) A determination that a State has failed to make any submission re- quired under the Act, other than one described under paragraph (c)(1) or (c)(2) of this section, including an ade- quate maintenance plan, or has failed to make any submission, required under the Act, other than one de- scribed under paragraph (c)(1) or (c)(2) of this section, that satisfies the min- imum criteria established in relation to such submission under 42 U.S.C. 7410(k)(1)(A); or(ii) A disapproval in whole or in part of a submission described under para- graph (c)(3)(i) of this section; or

Examples of Precursor in a sentence

• DEA List I Chemicals (Precursor Chemicals): No component(s) listed.

• The Company plans to construct Shanghai Petrochemical Thermal Power Unit Cleaning and Efficiency Improvement Project, Shanghai Petrochemical 24,000 ton/year Precursor, 12,000 ton/year 48K Large Tow Carbon Fiber Project and other environmentally friendly and energy-saving technological upgrade projects.

• Karkkainen, Information as Environmental Regulation: TRI and Performance Benchmarking, Precursor to a New Paradigm?, 89 GEO.

• Systems required to monitor disinfectant byproduct precursors must use the following methods, which must be conducted by a certified laboratory pursuant to 567—Chapter 83, unless otherwise specified.Approved Methods for Disinfection Byproduct Precursor Monitoring1 Alkalinity6 Titrimetric 2320B D 1067-92B Electrometric titration I-1030-85 Bromide Ion chromatography 300.0 300.1 317.0 Rev.

• Transfer Modes: Introduction, Circuit Switching, Routing, Virtual Circuit Switching, Comparison of Transfer Modes.Overview of ATM: Introduction, Motivation for ATM, Definition of ATM, Genesis of ATM, Precursor Technologies, Basic Principle of ATM, ISDN and B-ISDN, ISDN Channels, User Access, ISDN Protocols, Brief History of ISDN.UNIT II:ATM Protocol Reference Model: Introduction, Transmission Convergence (TC) Sub-layer, Physical Medium Dependent (PMD) Sub-layer, Physical Layer Standards for ATM.

More Definitions of Precursor

Precursor means ephedrine, pseudoephedrine, or any salt, isomer or salt of an isomer of such substances.

Precursor means: Any chemical reactant which takes part at any stage in the production by whatever method of a toxic chemical. This includes any key component of a binary or multicomponent chemical system. (For the purpose of implementing this Convention, precursors which have been identified for the application of verification measures are listed in Schedules contained in the Annex on Chemicals.)

Precursor means any substance that has been shown by sound science to be transformed into a PFC under ambient conditions reasonably expected to occur in New Hampshire.

Precursor means any directly emitted pollutant that, when released into the atmosphere, forms or causes to be formed or contributes to the formation of a secondary pollutant for which an ambient air quality standard has been adopted, or whose presence in the atmosphere will contribute to the violation of one or more ambient air quality standards. The following precursor/pollutant relationships shall be used for purposes of these Rules and Regulations:

Precursor means pollutant which is transformed in the atmosphere (later in time and space from point of emis- sion) to form (or contribute to the for- mation of) a criteria pollutant.

Precursor means any chemical reactant that takes part at any stage in the production by whatever method of a toxic chemi- cal.

Precursor means a radionuclide produced for the radio-labelling of another substance prior to its administration, other than a radionuclide which is incor- porated in or produced from a generator or is included in a radiopharmaceutical;