Standard Svensk standard · SS-EN ISO 20844:2004

Petroleum och relaterade produkter - Bestämning av skjuvningsstabiliteten hos polymerinnehållande oljor med hjälp av dieselinsprutningsmunstycke (ISO 20844:2004)

Status: Upphävd

· Ersätts av: SS-EN ISO 20844:2015
Köp denna standard

Standard Svensk standard · SS-EN ISO 20844:2004

Petroleum och relaterade produkter - Bestämning av skjuvningsstabiliteten hos polymerinnehållande oljor med hjälp av dieselinsprutningsmunstycke (ISO 20844:2004)
Prenumerera på standarden - Läs mer Dölj
Pris: 735 SEK
standard ikon pdf

PDF

Pris: 735 SEK
standard ikon

Papper

Fler alternativ Färre alternativ
Provläs denna standard
Omfattning
This International Standard specifies a method to assess the resistance to shear stresses applied to mineral oils, synthetic oils and other fluids containing polymers, when passed through a specified diesel injector nozzle. The shear stability is measured by the change in viscosity of the fluid under test, brought about by the polymer degradation during stress. Under normal circumstances, this International Standard is applied to hydraulic fluids of categories HR and HV as defined in ISO 6743-4 ([1] in the Bibliography) and specified in ISO 11158 ([2] in the Bibliography), but it may also be applied to fire-resistant hydraulic fluids within categories HFA, HFB, HFC and HFD, with modified conditions as specified in ISO 12922 ([3] in the Bibliography).
No formal correlation has been established between the viscosity loss, or the absence of viscosity loss, obtained using the procedures described in this International Standard and that of oils and fluids in actual service. However, it provides standardized conditions for the evaluation of polymer stability under minimized
thermal and oxidative stresses. It is normally used by manufacturers of fluids and additives, and users, as a means of ranking existing and potential formulations.
NOTE Changes to properties other than viscosity are specified in some specifications, but these are not covered by the procedures specified in this International Standard.

Ämnesområden

Petroleumprodukter, allmänt (75.080)


Köp denna standard

Standard Svensk standard · SS-EN ISO 20844:2004

Petroleum och relaterade produkter - Bestämning av skjuvningsstabiliteten hos polymerinnehållande oljor med hjälp av dieselinsprutningsmunstycke (ISO 20844:2004)
Prenumerera på standarden - Läs mer Dölj
Pris: 735 SEK
standard ikon pdf

PDF

Pris: 735 SEK
standard ikon

Papper

Fler alternativ Färre alternativ

Produktinformation

Språk: Engelska

Framtagen av: Smörjmedel och hydraulvätskor, SIS/TK 416

Internationell titel: Petroleum and related products - Determination of the shear stability of polymer-containing oils using a diesel injector nozzle (ISO 20844:2004)

Artikelnummer: STD-35892

Utgåva: 1

Fastställd: 2004-04-08

Antal sidor: 13

Ersätts av: SS-EN ISO 20844:2015