Parts per billion definition

Parts per billion or “ppb” means the ratio of the parts of a specified contaminant to a billion parts of air by weight (1:10-9), as measured and determined by the methods prescribed for that contaminant.
Parts per billion means the Standard unit for the concentration of a gas constituent relative to one billion parts.
Parts per billion. (ppb) means parts per billion by weight.

Examples of Parts per billion in a sentence

  • Parts per billion (ppb) or Micrograms per liter - one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.

  • Parts per billion concentrations of fertilizer were in the grain.

  • Ug/L: (Micrograms per liter) Parts per billion, a concentration equal to 1 microgram of a substance in one liter of water, equivalent to parts per billion (ppb) in water measurement.

  • Parts per billion measurement sensitivities are possible with resonant frequency-type measurements.

  • Pb: Lead Pd: Palladium PGE: Platinum Group Element PGM: Platinum group minerals PPB: Parts per billion PPM: Parts per million Pt: Platinum S: Sulphur TD: Total depth of a drill hole.

  • Parts per billion (ppb) is a measurement of the quantity of a substance in the water.

  • Parts per billion (ppb) or Micrograms per liter (µg/l): One (1) part by weight of analyte to one (1) billion parts by weight of the water sample.

  • Parts per billion (ppb) refers to the amount (or concentration) of a contaminant in the water.

  • Parts per billion (ppb) - one part per billion corresponds to one minute in 2,000 years, or a single penny in $10,000,000.

  • The amount, which can be received, depends upon the accomplishment of several factors, such as a certain percentage of the projected Total Development Cost; a maximum funding amount per development based on the county in which the development will be located; and whether the development is located within certain designated areas of some counties.

Related to Parts per billion

  • Earnings Per Share means as to any Fiscal Year, the Company’s or a business unit’s Net Income, divided by a weighted average number of common shares outstanding and dilutive common equivalent shares deemed outstanding, determined in accordance with generally accepted accounting principles.

  • Retail margin means an amount, reflecting differences in

  • Adjusted Revenue means revenue less Digital Platform Fulfilment Revenue.

  • Established catalogue price means the price included in a catalogue, price list, schedule, or other form that:

  • State average adjusted property tax base per square mile means the sum of

  • Locational Marginal Price or “LMP” shall mean the market clearing price for energy at a given location in a Party’s RC Area, and “Locational Marginal Pricing” shall mean the processes related to the determination of the LMP.

  • Gross Margin With respect to each Adjustable Rate Mortgage Loan, the fixed percentage set forth in the related Mortgage Note that is added to the Index on each Adjustment Date in accordance with the terms of the related Mortgage Note used to determine the Mortgage Rate for such Mortgage Loan.

  • Annual limit on intake or "ALI" means the derived limit for the amount of radioactive material taken into the body of an adult worker by inhalation or ingestion in a year. ALI is the smaller value of intake of a given radionuclide in a year by the reference man that would result in a committed effective dose equivalent of 0.05 sievert (five rem) or a committed dose equivalent of 0.5 sievert (fifty rem) to any individual organ or tissue. ALI values for intake by ingestion and by inhalation of selected radionuclides are given in appendix C to rule 3701:1-38-12 of the Administrative Code.

  • Buyer’s Margin Amount”, with respect to any Transaction as of any date, the amount obtained by application of the Buyer’s Margin Percentage to the Repurchase Price for such Transaction as of such date;

  • Minimum Weighted Average Coupon Test means a test that will be satisfied on any Measurement Date if the Weighted Average Coupon equals or exceeds 7.0%.

  • Established catalog price means the price included in a catalog, price list, schedule, or other form that:

  • Annual summative evaluation rating means an annual evaluation rating that is based on appraisals of educator practice and student performance, and includes all measures captured in a teacher’s evaluation rubric. The four summative performance categories are ineffective, partially effective, effective, and highly effective.

  • Gross weight means the aggregate weight of a vehicle or combination of vehicles and the load

  • Total Enterprise Value means the sum of: (i) the product of (A) the Equity Securities Value Per Share of a share of Common Stock not subject to vesting or other restrictions multiplied by (B) the number of outstanding shares of Common Stock, less (y) the number of outstanding shares of Restricted Stock or Other Awards of shares of Common Stock without vesting restrictions, in each case, issued after the date of this Agreement (including outstanding shares of Common Stock resulting from the vesting of such Restricted Stock), and less (z) the number of shares of Common Stock issued by the Company after the date of this Agreement in connection with any merger, consolidation, share exchange or other transaction in which, in each case, the Company acquires voting securities of another Person or all or any portion of another Person’s assets; (ii) for each other class or series of Equity Securities of the Company, if any, the product of (A) Equity Securities Value Per Share for such class or series of such Equity Securities of the Company multiplied by (B) the number of shares of such class or series of such Equity Securities of the Company, less (y) the number of shares of such class or series of such Equity Securities issued under the Plan (or otherwise issued for compensatory purposes) after the date of this Agreement, and less (z) the number of shares of such class or series of such Equity Securities issued by the Company after the date of this Agreement in connection with any merger, consolidation, share exchange or other transaction in which, in each case, the Company acquires the voting securities of another Person or all or any portion of another Person’s assets; and (iii) the principal amount of all outstanding funded indebtedness of the Company as of the last day of the month immediately preceding the date of calculation less the aggregate amount of cash and cash equivalents of the Company (exclusive of funds held on behalf of clients) as of the last day of the month immediately preceding the date of calculation.

  • Anticipated State average revenue availability per student means the sum of all anticipated total county revenue availability divided by the average daily membership for the State.

  • Gross laden weight means the actual weight of a vehicle or combination of

  • Baseline Value for each of the Company and the Peer Companies means the dollar amount representing the average of the Fair Market Value of one share of common stock of such company over the five consecutive trading days ending on, and including, the Effective Date.

  • Baseline means the “Initial Small Business Lending Baseline” set forth on the Initial Supplemental Report (as defined in the Definitive Agreement), subject to adjustment pursuant to Section 3(a).

  • Step Up Margin means the rate per annum specified in the applicable Final Terms; and

  • Total Revenue bears the same meaning assigned to this expression in the Codes of Good Practice on Black Economic Empowerment, issued in terms of section 9(1) of the Broad-Based Black Economic Empowerment Act and promulgated in the Government Gazette on 9 February 2007;

  • Bid with Lowest Evaluated Cost means the bid quoting lowest cost amongst all those bids evaluated to be substantially responsive;

  • Total adjusted capital means the sum of:

  • Fully Diluted Weighted Average Basis means, when calculating the number of Outstanding Units for any period, a basis that includes (a) the weighted average number of Outstanding Units during such period plus (b) all Partnership Interests and Derivative Partnership Interests (i) that are convertible into or exercisable or exchangeable for Units or for which Units are issuable, in each case that are senior to or pari passu with the Subordinated Units, (ii) whose conversion, exercise or exchange price, if any, is less than the Current Market Price on the date of such calculation, (iii) that may be converted into or exercised or exchanged for such Units prior to or during the Quarter immediately following the end of the period for which the calculation is being made without the satisfaction of any contingency beyond the control of the holder other than the payment of consideration and the compliance with administrative mechanics applicable to such conversion, exercise or exchange and (iv) that were not converted into or exercised or exchanged for such Units during the period for which the calculation is being made; provided, however, that for purposes of determining the number of Outstanding Units on a Fully Diluted Weighted Average Basis when calculating whether the Subordination Period has ended or Subordinated Units are entitled to convert into Common Units pursuant to Section 5.7, such Partnership Interests and Derivative Partnership Interests shall be deemed to have been Outstanding Units only for the four Quarters that comprise the last four Quarters of the measurement period; provided further, that if consideration will be paid to any Group Member in connection with such conversion, exercise or exchange, the number of Units to be included in such calculation shall be that number equal to the difference between (x) the number of Units issuable upon such conversion, exercise or exchange and (y) the number of Units that such consideration would purchase at the Current Market Price.

  • PJM Region Installed Reserve Margin means the percent installed reserve margin for the PJM Region required pursuant to RAA, Schedule 4.1, as approved by the PJM Board. PJM Region Peak Load Forecast:

  • Supplier Profit Margin means, in relation to a period or a Milestone (as the context requires), the Supplier Profit for the relevant period or in relation to the relevant Milestone divided by the total Call Off Contract Charges over the same period or in relation to the relevant Milestone and expressed as a percentage;

  • Lower explosive limit (LEL) means the concentration of a compound in air below which a flame will not propagate if the mixture is ignited.