Property talk:P2203

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upper flammable limit
upper bound of the concentration range over which a flammable mixture of gas or vapour in air can be ignited at a given temperature and pressure (0-1)

Description	the upper bound of the concentration range over which a flammable mixture of gas or vapour in air can be ignited at a given temperature and pressure
Represents	flammability limit (Q899502)
Data type	Quantity
Template parameter	en:Template:Chembox parameter ExploLimits
Domain	chemicals (note: this should be moved to the property statements)
Allowed values	percentages, so presumably the highest it can go is 100%. (note: this should be moved to the property statements)
Allowed units	milligram per cubic metre (Q21077820) or volume percent (Q2080811)
Example	methyl bromide (Q421758) → 16
Format and edit filter validation	Should we check for values that are negative or above 100%?
Source	http://www.cdc.gov/niosh/npg/default.html
Robot and gadget jobs	Future importation of Pocket Guide to Chemical Hazards into Wikidata
See also	lower flammable limit (P2202)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value User:Laboramus/Units/P2203 (Units used) Database reports/Constraint violations/P2203 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 186 Main statement 185 99.5% of uses Qualifier 1 0.5% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Units: “milligram per cubic metre (Q21077820), volume percent (Q2080811)”: value unit must be one of listed. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2203#Units, hourly updated report

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2203#Scope, hourly updated report, SPARQL

Citation needed: the property must have at least one reference (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2203#citation needed

This property is being used by: ca:Plantilla:Infotaula compost químic eu:Txantiloi:Konposatu kimiko infotaula/probak, eu:Txantiloi:Konposatu kimiko infotaula ast:Plantía:Ficha de compuestu químicu ha:Template:Infobox chemical incubator:Template:Wp/shi/Infobox chemical kab:Talɣa:Infobox chemical shi:Talɣa:Infobox chemical ga:Teimpléad:WD Bosca Sonraí Comhdhúil Cheimiceach ff:Template:Infobox chemical gv:Clowan:WD Kishtey Fys Co-vunstoo Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Percentage is not a unit

@James Hare (NIOSH): Sorry, I couldn't comment on this proposal before it was created. The current examples and statements use percentag. Which is poorly defined concept unless you know what numbers were used to generate the percentage. I think for this porperty, most measurements are made by comparing the volume of flamable gas to the volume of air. So the unit we should use is millilitre per litre (Q21075844). Is it ok if I change the units and move the decimal point one over? --Tobias1984 (talk) 10:25, 8 October 2015 (UTC)

Yes, mL per L is a better unit. Pinging Emily for her thoughts as well. James Hare (NIOSH) (talk) 00:43, 9 October 2015 (UTC)

@James Hare (NIOSH), Tobias1984: We can use percentage but we have to specify volume percentage (the most common unit for inflammability as vol% or %v/v) or mass percentage. Snipre (talk) 08:01, 13 October 2015 (UTC)