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NEPLATNÁ ASTM D4817-88(2012) 1.5.2012 náhled

Doplňující informace

ASTM D4817-88(2012)

Standard Classification for Rubber Compounding Materials—Stearic Acid

Automaticky přeložený název:

Standardní klasifikace gumárenských slučování materiály & ndash; kyselina stearová

NORMA vydána dne 1.5.2012

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1 776.60 Kč

Informace o normě:

Označení normy: ASTM D4817-88(2012)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.5.2012
Kód zboží: NS-28742
Počet stran: 2
Přibližná hmotnost: 6 g (0.01 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Anotace textu normy ASTM D4817-88(2012) :

Keywords:

ICS Number Code 83.040.20 (Rubber compounding ingredients)

Doplňující informace

Significance and Use

Stearic acid is important in the rubber vulcanization process. It is believed that the stearic acid reacts with zinc-oxide or other metallic oxides, during vulcanization, to form a rubber soluble salt or soap, that reacts with the accelerator enabling it to exert its full effect.

Stearic acid of commerce is generally a mixture of palmitic, stearic, and oleic acids usually derived from tallow base stock but can be derived from other fats and oils of animal or vegetable origins.

1. Scope

1.1 This classification covers the compounding materials commercially known as stearic acid.

1.2 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

D1983-90(1995)e1	Standard Test Method for Fatty Acid Composition by Gas-Liquid Chromatography of Methyl Esters (Withdrawn 2003)
D4075-06(2021)	Standard Test Methods for Rubber Compounding Materials—Flame Atomic Absorption Analysis—Determination of Metals
D1980-87(1998)	Standard Test Method for Acid Value of Fatty Acids and Polymerized Fatty Acids (Withdrawn 2007)
D1982-13(2022)	Standard Test Method for Titer of Fatty Acids
D1466-86(1995)e1	Standard Test Method for Sampling Liquid Oils and Fatty Acids Commonly Used in Paints, Varnishes, and Related Materials (Withdrawn 2003)
D1951-86(1995)e1	Standard Test Method for Ash in Drying Oils and Fatty Acids (Withdrawn 2003)
D1959-97	Standard Test Method for Iodine Value of Drying Oils and Fatty Acids (Withdrawn 2006)
D1962-85(1995)	Standard Test Method for Saponification Value of Drying Oils, Fatty Acids, and Polymerized Fatty Acids (Withdrawn 2004)
D1965-87(1998)	Standard Test Method for Unsaponifiable Matter in Drying Oils, Fatty Acids, and Polymerized Fatty Acids (Withdrawn 2007)