Composite samples definition

Composite samples means a sample composed of four or more discrete aliquots (samples). The aggregate sample will reflect the average quality of the water or wastewater in the compositing or sample period. Composite sample may be composed of constant volume aliquots collected at regular intervals (simple composite) or flow proportioned.
Composite samples. - means those samples that are made up of a series of small individual samples obtained at regular intervals over the entire discharge day. Composite samples may be time proportioned or flow proportioned, and shall be determined by PVSC.
Composite samples means, for flow rate measurements, the arithmetic mean of no fewer than 4 individual measurements taken at equal intervals for one hour or for the duration of discharge, whichever is shorter. A 4-hour composite sample means, for other than flow rate measurements, a combination of four (4) individual portions obtained at equal time intervals over any 4-hour period or for the duration of the discharge, whichever is shorter. The volume of each individual portion shall be directly proportional to the discharge flow rate at the time of sampling. The sampling period shall coincide with the period of maximum discharge flow.

Examples of Composite samples in a sentence

  • Composite samples characterize the quality of a discharge over a given period of time.

  • Composite samples may be taken by a proportional sampling device approved by the Executive Officer or by grab samples composited in proportion to flow.

  • Composite samples may be used to develop a sample for analysis provided that the compositing period does not exceed 24 hours.

  • Composite samples shall be comprised of a series of grab samples collected over a 24-hour period and proportionate in volume to the sewage flow rate at the time of sampling.

  • Composite samples shall be comprised of a series of grab samples collected over a 24-hour period and proportionate in volume to the wastewater flow rate at the time of sampling.

  • Composite samples shall be comprised of a series of grab samples collected over a 24-hour period.

  • Composite samples shall be comprised of at least three grab samples proportionate in volume to the sewage flow rate at the time of sampling and collected at intervals of at least 30 minutes, but not more than 2 hours, during the period that the plant is staffed on each day for sampling.

  • Composite samples should not be collected, since such samples do not display the range of values found in individual samples.

  • Composite samples shall be prepared using the ap- plicable procedures specified in ASTM D5854.

  • Composite samples from a maximum of five sampling points are allowed, provided that the detection limit of the method used for analysis is less than one-fifth of the MCL.


More Definitions of Composite samples

Composite samples means a sample composed of two or more discrete aliquots (samples). The aggregate sample will reflect the average quality of the water or wastewater in the compositing or sample period. Composite sample may
Composite samples means a combination of individual samples of Wastewater taken at selected intervals, in time or volume, to minimize the variability of the individual sample.
Composite samples means samples that are made up of a number of laboratory grab samples from a single sample container that have been thoroughly mixed together;
Composite samples means those samples that are made up of a series of small

Related to Composite samples

  • Composite sample means a combination of individual samples of wastewater taken at 1 hour intervals, for eight (8) hours (or for the duration of discharge, whichever is less), to minimize the effect of variability of the individual samples. Individual samples must be of equal volume. (Example: one (1) liter per hour.)

  • composite supply means a supply made by a taxable person to a recipient consisting of two or more taxable supplies of goods or services or both, or any combination thereof, which are naturally bundled and supplied in conjunction with each other in the ordinary course of business, one of which is a principal supply;

  • Sampler means a person who is employed by or is an owner of a licensed laboratory, grower, or processor and is authorized by that employer to collect samples in accordance with the testing laboratory's standard operating procedures and these Rules.

  • Samples means physical examples which illustrate materials, equipment or workmanship and establish standards by which the Work will be judged.

  • Single tomogram system means a CT x-ray system which obtains x-ray transmission data during a scan to produce a single tomogram.

  • Aerosol coating product means a pressurized coating product containing pigments or resins that dispenses product ingredients by means of a propellant, and is packaged in a disposable can for hand-held application, or for use in specialized equipment for ground traffic/marking applications.

  • Bottle means any vessel intended to contain liquids and having a capacity of not more than 43

  • Feed means feed as defined in point (4) of Article 3 of Regulation (EC) No 178/2002;

  • DNA sample means any material that has come from a human body and consists of or includes human cells;

  • High-temperature coating means a high performance coating labeled and formulated for application to substrates exposed continuously or intermittently to temperatures above 204oC (400oF).

  • Reference biological product means the single biological product licensed pursuant to 42 U.S.C.

  • plant products means products of plant origin, unprocessed or having undergone simple preparation in so far as these are not plants, set out in Annex IV-A, Part 3 to this Agreement;

  • Inert ingredient means an ingredient which is not an active ingredient.

  • Fluoroscopic imaging assembly means a subsystem in which X-ray photons produce a visual image. It includes the image receptor(s) such as the image intensifier and spot-film device, electrical interlocks, if any, and structural material providing linkage between the image receptor and diagnostic source assembly.

  • Outputs means the goods or services that are produced by an entity or other person;

  • Biological Samples means any physical samples obtained from Study Participants in accordance with the Protocol for the purposes of the Study.

  • Grab sample means an individual sample collected in less than 15 minutes in conjunction with an instantaneous flow measurement.

  • Cartridge means a pleated or surface-type filter component with fixed dimensions that is designed to remove suspended particles from water flowing through the filter.

  • Bulk Product means Licensed Product supplied in a form other than Finished Product which can be converted into Finished Product.

  • Active Ingredient means the clinically active material(s) that provide pharmacological activity in a pharmaceutical product (excluding formulation components such as coatings, stabilizers, excipients or solvents, adjuvants or controlled release technologies).

  • Milk product or "dairy product" means cottage cheese, dry curd cottage cheese, reduced fat cottage cheese, lowfat cottage cheese, cream, light cream, light whipping cream, heavy cream, heavy whipping cream, whipped cream, whipped light cream, sour cream, acidified sour cream, cultured sour cream, half-and-half, sour half-and-half, acidified sour half-and-half, cultured sour half-and-half, reconstituted or recombined milk and milk products, concentrated milk, concentrated milk products, skim milk, lowfat milk, frozen milk concentrate, flavored milk, eggnog, buttermilk, cultured milk, cultured lowfat milk, cultured skim milk, yogurt, lowfat yogurt, nonfat yogurt, acidified milk, acidified lowfat milk, acidified skim milk, low-sodium milk, low-sodium lowfat milk, low-sodium skim milk, lactose-reduced milk, lactose-reduced lowfat milk, lactose-reduced skim milk, aseptically processed and packaged milk, milk products with added safe and suitable microbial organisms, and any other milk product made by the addition or subtraction of milkfat or addition of safe and suitable optional ingredients for protein, vitamin, or mineral fortification. Unless a product is considered a milk product under this subdivision, milk product does not include dietary products, infant formula, ice cream or other desserts, cheese, or butter. Milk products include the following:

  • Assay means a laboratory analysis of Crude Petroleum to include the following: A.P.I. Gravity, Reid vapor pressure, composition, pour point, water and sediment content, sulfur content, viscosity, distillation, hydrogen sulfide, flash/boiling point and other characteristics as may be required by Carrier.

  • embedded generator means a generator who is not a market participant and whose generation facility is connected to a distribution system of a distributor, but does not include a generator who consumes more electricity than it generates;

  • Concentrate means the product of a process of extraction of metal or a metallic mineral from mineral ore that results in substantial enrichment of the metal or metallic mineral concerned;

  • Substrate means the surface onto which a coating is applied or into which a coating is impregnated.

  • Biodegradable means degradable through a process by which fungi or bacteria secrete enzymes to convert a complex molecular structure to simple gasses and organic compounds.