The PNNL system easily detects vapors from a fingerprint-sized sample of RDX at levels below 25 parts per quadrillion.
What does PPQ stand for?
PPQ stands for Parts per Quadrillion
This definition appears frequently and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
See other definitions of PPQ
We have 32 other meanings of PPQ in our Acronym Attic
- Pregnancy/Postpartum Physical Training (US Army)
- Printer Port Programming Tool
- Public Private Partnership Unit (Leeds City Council; United Kingdom)
- Public-Private Partnerships for the Urban Environment
- Per Person, Per Week (apartment rentals)
- Petit Patrimoine Populaire Wallon (French: Little People Walloon Heritage; Belgium)
- Per Patient Per Year
- Partido Patria Querida (Spanish: Beloved Fatherland Party; Paraguay)
- Partners Promoting Quality (statewide health care coalitions in Indiana a)
- Parts per Quarter Note (digital music)
- Past Paper Question
- Past Performance Questionnaire
- Perfect Paper Quality (grading system)
- Pigmentos y Productos Quimicos (Spanish: Pigments and Chemical Products; Mexico)
- Pirate Party Quest
- Plant Protection and Quarantine (USDA subsidiary)
- Polite Persistent Questioning (alt.folklore.urban newsgroup)
- Pre Purchase Questionnaire (UK)
- Pre-Production Qualification
Samples in periodicals archive:
The chemicals made up six parts per quadrillion in untreated water.
This method measures in the parts per quadrillion range.
23] molecules) trace concentrations, like parts per quadrillion (1 part in [10.
has a consistent flawless purity measured to parts per quadrillion.
These levels are so low that, actually, by the time it goes through our treatment system, we aren't going to see them even in the parts per quadrillion that we're looking at.
For example, it is currently possible to reliably measure such chemicals as dioxin in the parts per quadrillion (ppq) level and parent pesticides and their metabolites at the parts per trillion (ppt) level.
5 parts per trillion (ppt) in hardwood pulp to 6 ppt in softwood pulp, 17 ppt in pulp-mill sludge and 24 parts per quadrillion in wastewater.