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 Test Method for Melting Point of Petroleum Wax (Cooling Curve)
Automaticky preložený názov:
Štandardná skúšobná metóda pre bod topenia ropného vosku (chladiace krivka)
NORMA vydaná dňa 1.5.2014
Označenie normy: ASTM D87-09(2014)
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.5.2014
Kód tovaru: NS-39547
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
cooling curve, melting point, petroleum wax, wax, ICS Number Code 75.140 (Waxes, bituminous materials and other petroleum products)
Significance and Use | ||||||||
5.1 Melting point (cooling curve) is a test that is widely used by wax suppliers and consumers. it is particularly applied to petroleum waxes that are rather highly paraffinic or crystalline in nature. A plateau occurs with specimens containing appreciable amounts of hydrocarbons that crystallize at the same temperature, giving up heat of fusion, thus temporarily retarding the cooling rate. In general, petroleum waxes with large amounts of non-normal hydrocarbons or with amorphous solid forms will not exhibit a plateau. |
||||||||
1. Scope | ||||||||
1.1 This test method covers the determination of the melting point (cooling curve) of petroleum wax. It is unsuitable for waxes of the petrolatum group, microcrystalline waxes, or blends of such waxes with paraffin wax or scale wax. Note 1: For additional methods used for testing petroleum
waxes, see Test Method D127
and Test Method D938. Results
may differ, depending on the method used. For pharmaceutical
petrolatum, Test Method D127
usually is used.
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 | ||||||||
|
Historická
1.5.2010
Historická
1.10.2012
Historická
1.5.2010
Historická
1.11.2012
Historická
1.5.2014
Historická
1.5.2014
Chcete mať istotu, že používate len platné technické normy?
Ponúkame Vám riešenie, ktoré Vám zaistí mesačný prehľad o aktuálnosti noriem, ktoré používate.
Chcete vedieť viac informácií ? Pozrite sa na túto stránku.
Posledná aktualizácia: 2024-09-13 (Počet položiek: 2 429 660)
© Copyright 2024 NORMSERVIS s.r.o.