Skip to main content

Безразмерни единици за следови и ултра-следови съдържания Източници | Навигацияparts per notation – ppm, ppb

Единици за измерванеБезразмерни величини













Безразмерни единици за следови и ултра-следови съдържания




от Уикипедия, свободната енциклопедия






Направо към навигацията
Направо към търсенето


Безразмерните единици за следови и ултра-следови съдържания на химични елементи са:[1]



  • процент (%, pph) - части на сто (на английски: parts per hundred)


  • промил (‰) - части на хиляда


  • ppm — части на милион (на английски: parts per million)


  • ppb — части на милиард (на английски: parts per billion)


  • ppt — части на трилион (на английски: parts per trillion)


  • ppq — части на квадрилион (на английски: parts per quadrillion)

Израз в метрични единици за маса:


  • 1 % = 1x10-2 g/g = 1 cg/g

  • 1 ‰ = 1x10-3 g/g = 1 mg/g

  • 1 ppm = 1x10-6 g/g = 1 µg/g

  • 1 ppb = 1x10-9 g/g = 1 ng/g

  • 1 ppt = 1x10-12 g/g = 1 pg/g

  • 1 ppq = 1x10-15 g/g = 1 fg/g


Източници |



  1. ↑ parts per notation – ppm, ppb. // chembuddy.com. Посетен на 6 април 2012. (на английски)









Взето от „https://bg.wikipedia.org/w/index.php?title=Безразмерни_единици_за_следови_и_ултра-следови_съдържания&oldid=9381699“.










Навигация


























(window.RLQ=window.RLQ||[]).push(function()mw.config.set("wgPageParseReport":"limitreport":"cputime":"0.052","walltime":"0.075","ppvisitednodes":"value":938,"limit":1000000,"ppgeneratednodes":"value":0,"limit":1500000,"postexpandincludesize":"value":4358,"limit":2097152,"templateargumentsize":"value":792,"limit":2097152,"expansiondepth":"value":11,"limit":40,"expensivefunctioncount":"value":1,"limit":500,"unstrip-depth":"value":0,"limit":20,"unstrip-size":"value":695,"limit":5000000,"entityaccesscount":"value":0,"limit":400,"timingprofile":["100.00% 45.731 1 -total"," 66.11% 30.234 1 Шаблон:Cite_web"," 49.11% 22.459 1 Шаблон:Cite"," 32.06% 14.661 5 Шаблон:Lang"," 15.51% 7.095 1 Шаблон:Източник_БДС_17377"," 14.99% 6.854 6 Шаблон:Lang/lang"," 13.36% 6.109 1 Шаблон:Tfn"," 7.90% 3.613 1 Шаблон:Cite-lang"],"cachereport":"origin":"mw1238","timestamp":"20190407120526","ttl":2592000,"transientcontent":false););"@context":"https://schema.org","@type":"Article","name":"u0411u0435u0437u0440u0430u0437u043cu0435u0440u043du0438 u0435u0434u0438u043du0438u0446u0438 u0437u0430 u0441u043bu0435u0434u043eu0432u0438 u0438 u0443u043bu0442u0440u0430-u0441u043bu0435u0434u043eu0432u0438 u0441u044au0434u044au0440u0436u0430u043du0438u044f","url":"https://bg.wikipedia.org/wiki/%D0%91%D0%B5%D0%B7%D1%80%D0%B0%D0%B7%D0%BC%D0%B5%D1%80%D0%BD%D0%B8_%D0%B5%D0%B4%D0%B8%D0%BD%D0%B8%D1%86%D0%B8_%D0%B7%D0%B0_%D1%81%D0%BB%D0%B5%D0%B4%D0%BE%D0%B2%D0%B8_%D0%B8_%D1%83%D0%BB%D1%82%D1%80%D0%B0-%D1%81%D0%BB%D0%B5%D0%B4%D0%BE%D0%B2%D0%B8_%D1%81%D1%8A%D0%B4%D1%8A%D1%80%D0%B6%D0%B0%D0%BD%D0%B8%D1%8F","sameAs":"http://www.wikidata.org/entity/Q27084","mainEntity":"http://www.wikidata.org/entity/Q27084","author":"@type":"Organization","name":"Contributors to Wikimedia projects","publisher":"@type":"Organization","name":"u0424u043eu043du0434u0430u0446u0438u044f u0423u0438u043au0438u043cu0435u0434u0438u044f","logo":"@type":"ImageObject","url":"https://www.wikimedia.org/static/images/wmf-hor-googpub.png","datePublished":"2006-07-04T17:26:39Z","dateModified":"2019-03-31T18:21:24Z"(window.RLQ=window.RLQ||[]).push(function()mw.config.set("wgBackendResponseTime":103,"wgHostname":"mw1239"););
-

Popular posts from this blog

The Calvary Singular or Plural The 2019 Stack Overflow Developer Survey Results Are InAre collective nouns always plural, or are certain ones singular?Is “audience” singular or plural?“Wasn't” vs. “weren't” in a vernacular sentence“My last couple of years” — singular or plural?Is 'rest' singular or plural?Is “all but one” singular or plural?Whether to use the singular or plural form of basis?Singular and Plural for numbersIs there a plural form of teeth?performance: plural vs singular?singular or plural nouns?Singular and Plural

Image
How to type a long/em dash `—` Did Scotland spend $250,000 for the slogan "Welcome to Scotland"? Worn-tile Scrabble Can we generate random numbers using irrational numbers like π and e? Geography at the pixel level For what reasons would an animal species NOT cross a *horizontal* land bridge? A female thief is not sold to make restitution -- so what happens instead? What is this sharp, curved notch on my knife for? Why does the nucleus not repel itself? What do I do when my TA workload is more than expected? How do I free up internal storage if I don't have any apps downloaded? How come people say “Would of”? Can there be female White Walkers? Cooking pasta in a water boiler If I score a critical hit on an 18 or higher, what are my chances of getting a critical hit if I roll 3d20? Is it ok to offer lower paid work as a trial period before negotiating for a full-time job? Can an undergraduate be advised by a professor who is very far...
Read more

What is the correct present continuous form of “thunder” and “lightning”? Unicorn Meta Zoo #1: Why another podcast? Announcing the arrival of Valued Associate #679: Cesar ManaraWhat is the past tense of “lightning”?What part of speech is the “be + verb” here? What tense are these sentences in?Present perfect and present perfect continuous for actions in progressIs it correct to mix past, present and future tense in a sentence?Correct verb form in two sentencesSimple vs Continuous in the Past Tense and in the Future TenseUsing present continuous passive (is being) for describing repeating (undesirable) actionssituations in which simple present and present continuous are interchangeable?Present Perfect Simple vs Present Perfect ContinuousWhat is the proper way to express a future action that depends on a past event?Progressive Form of Be and Lately in Present Continuous

Image
Does Mathematica have an implementation of the Poisson binomial distribution? Is Electric Central Heating worth it if using Solar Panels? Israeli soda type drink A strange hotel A faster way to compute the largest prime factor How do I check if a string is entirely made of the same substring? Would reducing the reference voltage of an ADC have any effect on accuracy? What do you call the part of a novel that is not dialog? What is it called when you ride around on your front wheel? finding a tangent line to a parabola What *exactly* is electrical current, voltage, and resistance? What’s with the clanks in Endgame? Is Diceware more secure than a long passphrase? How would this chord from "Rocket Man" be analyzed? "My boss was furious with me and I have been fired" vs. "My boss was furious with me and I was fired" A Dictionary or Encyclopedia of Fantasy or Fairy Tales from the 1960s What was Apollo 13's "Little Jolt...
Read more

Is it possible to static_assert that a lambda is not generic?Can we get the type of a lambda argument?Is it possible to write a template to check for a function's existence?What is a lambda expression in C++11?Compiling with gcc fails if using lambda function for QObject::connect()c++11 - getting result_of, decltype, std::function and variadic templates working togetherTemplate Type Deduction with LambdasVariadic template method and std::function - compilation errorRecursively visiting an `std::variant` using lambdas and fixed-point combinatorsClang can't find template binary operator in fold expressionGenerating lambda from class templateGetting active value in std::visit without knowing which value is active

Image
Is it true that four-wheel drive is less efficient and if so, why? Is it possible for a PC to dismember a humanoid? Mathematica command that allows it to read my intentions Venezuelan girlfriend wants to travel the USA to be with me. What is the process? Is there a hemisphere-neutral way of specifying a season? Why can't we play rap on piano? Is it a bad idea to plug the other end of ESD strap to wall ground? How would I stat a creature to be immune to everything but the Magic Missile spell? (just for fun) What historical events would have to change in order to make 19th century "steampunk" technology possible? What exploit Are these user agents trying to use? Why didn't Boeing produce its own regional jet? Expand and Contract How seriously should I take size and weight limits of hand luggage? GFCI outlets - can they be repaired? Are they really needed at the end of a circuit? Can a virus destroy the BIOS of a modern computer? How can the...
Read more