Potrebujeme váš súhlas na využitie jednotlivých dát, aby sa vám okrem iného mohli ukazovať informácie týkajúce sa vašich záujmov. Súhlas udelíte kliknutím na tlačidlo „OK“.
Standard Practice for Measuring Viscosity of Glass Above the Softening Point
Automaticky preložený názov:
Štandardné praktiky pre meranie viskozity skla Nad bod mäknutia
NORMA vydaná dňa 1.3.2012
Označenie normy: ASTM C965-96(2012)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.3.2012
Kód tovaru: NS-15879
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
concentric cyclinders method, glass, viscosity , Furnaces, Glass, Spindle torque, Torque, Viscosity, ICS Number Code 81.040.10 (Raw materials and raw glass)
Significance and Use | ||||
This practice is useful in determining the viscosity-temperature relationships for glasses and corresponding useful working ranges. See Terminology C162. |
||||
1. Scope | ||||
1.1 This practice covers the determination of the viscosity of glass above the softening point through the use of a platinum alloy spindle immersed in a crucible of molten glass. Spindle torque, developed by differential angular velocity between crucible and spindle, is measured and used to calculate viscosity. Generally, data are taken as a function of temperature to describe the viscosity curve for the glass, usually in the range from 1 to 106 Pa·s. 1.2 Two procedures with comparable precision and accuracy are described and differ in the manner for developing spindle torque. Procedure A employs a stationary crucible and a rotated spindle. Procedure B uses a rotating crucible in combination with a fixed spindle. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
||||
2. Referenced Documents | ||||
|
Historická
1.10.2013
Historická
1.10.2013
Historická
1.10.2011
Historická
1.10.2013
Historická
1.10.2013
Historická
1.11.2009
Posledná aktualizácia: 2024-09-04 (Počet položiek: 2 346 114)
© Copyright 2024 NORMSERVIS s.r.o.