1 parts-per trillion (ppt) is equal to 1×10^-6 parts-per million (ppm). Conversely, 1 parts-per million (ppm) is equal to 1×10^6 parts-per trillion (ppt). See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a ...
1 000 ppm = 0.1 % 10 000 ppm = 1% Download and print ppm vs. percent and mg/L chart Alternatively - mass related units to measure very small concentration levels: ppb - parts per billion (1 / 1,000,000,000 or 10-9) ppt - parts per trillion (1 / 1,000,000,000,000 or ...
parts per billion十亿分之一 见PPB. parts per billion (ppb)十亿分率 spare parts per unit每台备件 parts per million百万分之几 parts per trillion兆分之一 见PPT. parts per thousand千分之一 parts per hundred million(pphm)亿分率 parts per million (ppm)兆比率 ...
Other part-per notations are written here:NameNotationCoefficient Percent % 10-2 Per-mille ‰ 10-3 Parts per million ppm 10-6 Parts per billion ppb 10-9 Parts per trillion ppt 10-12Chemical concentrationppm is used to measure chemical concentration, usually in a solution of water.Solute ...
由于不同的研究人员在报告其研究结果时对同一个变量使用不同的单位,因此任何特定变量在数据文件中都可能以重量百分比、百万分之一(ppm)和十亿分之一(ppb)来表示。 UN-2 Cleanly: Pumping a chamber to high vacuum before a process can reduce contamination levels to the PPT (parts per trillion) range....
ABBR=parts per million→ppm Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005 Want to thank TFD for its existence?Tell a friend about us, add a link...
Note that "Parts per" notation can be sometimes misleading. ppm usually means 1 mass part per 106mass parts, but it can be volume by volume, or even 1 particle per 106particles. 1 mL of SF6(g) added to 1000L of hydrogen H2(g) is 1 ppm vol/vol but 73 ppm mass/mass. In the ...
a particularly stable high-power narrow-linewidth mid-infrared continuous-wave optical parametric oscillator, and a strong absorption cross-section of hydrogen fluoride to demonstrate the ability of cantilever-enhanced photo-acoustic spectroscopy to reach sub-parts-per-trillion level sensitivity in trace ga...
Parts per million (ppm) is a commonly usedunitofconcentrationfor small values. One part per million is one part ofsoluteper one million partssolventor 10-6. Parts per million and other "parts per" notations (e.g., parts per billion or parts per trillion) are dimensionless quantities with ...
Graphene-Dye supramolecular assembly for parts per trillion level F-monitoringGraphene - dye supramolecular assemblyAnion sensingFluoride ionOptical sensorAn innovative and simple displacement approach based on Graphene and Rhodamine supramolecular assembly that could sense fluoride ion in aqueous solution is ...