Property talk:P5670

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glass transition temperature
transition in amorphous materials from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased

Represents	glass-transition temperature (Q10384164)
Data type	Quantity
Allowed units	degree Celsius (Q25267), degree Fahrenheit (Q42289) or kelvin (Q11579)
Example	acrylonitrile butadiene styrene (Q143496) → 105 degree Celsius polyvinyl chloride (Q146368) → 80 degree Celsius
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) Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P5670 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 4 Main statement 2 50% of uses Qualifier 2 50% of uses

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

Units: “degree Celsius (Q25267), degree Fahrenheit (Q42289), kelvin (Q11579)”: value unit must be one of listed. (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/P5670#Units

Item “instance of (P31)”: Items with this property should also have “instance of (P31)”. (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/P5670#Item P31, SPARQL