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ASTM D3265-13a
Standard Test Method for Carbon Black—Tint Strength (Includes all amendments And changes 7/7/2014).
Automatische name übersetzung:
Standard Test Method for Carbon Black & mdash; Tint Strength
NORM herausgegeben am 1.11.2013
Informationen über die Norm:
Bezeichnung normen: ASTM D3265-13a
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.11.2013
SKU: NS-23077
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Die Annotation des Normtextes ASTM D3265-13a :
Keywords:
carbon black, photo&ndash,electric reflectance meter, tint strength, ICS Number Code 83.040.20 (Rubber compounding ingredients)
Ergänzende Informationen
| Significance and Use | ||||||||
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4.1 For the broad range of commercial rubber grade carbon blacks, tint strength is highly dependent upon particle size. Tint strength can be used as an indication of particle size; however, tint strength is also dependent on structure and aggregate size distribution. Therefore, differences in tint strength within grades of carbon black may reflect differences other than particle size. 4.2 Tint strength values within the
carbon black industry have been developed using a Hoover Muller
apparatus which is used to prepare carbon black-zinc oxide pastes.
A new mixing apparatus, SpeedMixer3 (DAC 150
FVZ), and a corresponding procedure have been extensively studied
within D24 and shown to provide equivalent tint strength for all
carcass or soft blacks and most tread blacks with the exception of
higher surface area N100 types and specialty blacks. Therefore, it
is the responsibility of the user of this alternate apparatus to
ensure their products will adequately disperse. Disputes arising
between a user and producer should be resolved using the Hoover
Muller apparatus until ASTM develops adequate precision
statements.
4.3 The term ITRB is used in the entire text for both, the original ITRB, used as the first reference material for tint testing, but which is now used up, and the successor reference material, ITRB2. Wherever required, like in calculations where it is crucial to differentiate between the original ITRB and ITRB2, this will be clearly mentioned in the text of the test procedure. |
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| 1. Scope | ||||||||
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1.1 This test method covers the determination of the tint strength of carbon black relative to an industry tint reference black (ITRB). 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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. |
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| 2. Referenced Documents | ||||||||
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