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  • BSI
    BS 4695:1980, ISO 3841-1977 Method for determination of melting point of petroleum wax (cooling curve)
    Edition: 1980
    $281.30
    / user per year

Description of BS 4695:1980 1980

1.1 This International Standard specifies a method for the determination of the melting point (cooling curve) of petroleum wax. It is unsuitable for waxes of the petrolatum group, the microcrystalline waxes, or blends of such waxes with paraffin wax or scale wax.

1.2 Melting point (cooling curve) is a test that is widely used by wax suppliers and consumers. It is particularly applicable 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 show the plateau.

NOTE For additional methods used for testing petroleum waxes, see ISO 2207, Petroleum waxes — Determination of congealing point, and ISO . . ., Petroleum waxes — Determination of drop-melting point.1) Results may differ, depending on the method used. For pharmaceutical petrolatum, ISO . . . is usually used.



Technically equivalent to ASTM 87-74:IP 55/77.

Standard NumberBS 4695:1980, ISO 3841-1977
TitleMethod for determination of melting point of petroleum wax (cooling curve)
StatusRevision Underway
Publication Date1980-04-30
Identical National Standard OfISO 3841
DescriptorsMelting point, Waxes, Precision, Temperature measurement, Petroleum products, Test equipment, Cooling, Mineral waxes, Dimensions, Accuracy
ICS75.140 Waxes, bituminous materials and other petroleum products
CommitteePTI/13
ISBN0 580 11383 3
PublisherBSI
Pages8

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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