Pozor!

Vo Vašom prehliadači nie je aktuálne povolené spúšťanie Javascriptu. Je možné, že niektoré funkcie nebudú fungovať správne. Pre plnú funkčnosť internetového obchodu odporúčame povoliť Javascript. Tu sú inštrukcie ako povoliť JavaScript vo Vašom webovom prehliadači.

Zobrazovaná mena: €

Zobrazenie ceny: bez DPH

Doplňujúce informácie

ASTM D6845-12

Standard Test Method for Silica, Precipitated, Hydrated—CTAB (Cetyltrimethylammonium Bromide) Surface Area

Automaticky preložený názov:

Štandardná skúšobná metóda pre oxid kremičitý, vyzráža hydratovaný & ndash, CTAB (cetyltrimethylamoniumbromid) plochu

NORMA vydaná dňa 1.1.2012

Jazyk
Prevedenie	PDF - okamžité stiahnutie - 67.00 € Tlačené - 67.00 €
Dostupnosť	SKLADOM
Cena	67.00 € bez DPH
67.00 €

Informácie o norme:

Označenie normy: ASTM D6845-12
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.2012
Kód tovaru: NS-36754
Počet strán: 4
Približná hmotnosť: 12 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM

Tlač

Odoslať známemu

Otázka

Kategórie - podobné normy:

Silikony

Anotácia textu normy ASTM D6845-12 :

Keywords:

cetyltrimethylammonium bromide, CTAB, silica, surface area by CTAB method, turbidity titration, Cetyltrimethylammonium bromide (CTAB), Hydrated silica, Precipitated hydrated silica, Silica, Surface analysis--rubber chemicals/materials, Turbidity titration, ICS Number Code 71.100.55 (Silicones)

Doplňujúce informácie

Significance and Use

The CTAB molecule is relatively large; so it is not adsorbed in micropores or on surface roughness. Thus, the CTAB surface area reflects only the surface of the silica that is available for interaction with rubber molecules.

1. Scope

1.1 This test method covers the measurement of the specific surface area of precipitated silicas exclusive of area contained in micropores too small to admit hexadecyltrimethylammonium bromide (cetyltrimethylammonium bromide, commonly referred to as CTAB) molecules. This test method is suitable for characterizing rubber-grade silicas of all types.

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.

2. Referenced Documents

D1900-20	Standard Practice for Carbon Black—Sampling Bulk Shipments
D4483-20	Standard Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing Industries
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E177-20	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
D1799-20	Standard Practice for Carbon Black—Sampling Packaged Shipments
D1193-06(2018)	Standard Specification for Reagent Water