SIST EN ISO 3838:2004

Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods (ISO 3838:2004)

ISO 3838:2004 specifies methods for the determination of the density or relative density of crude petroleum and of petroleum products handled as liquids.
The capillary-stoppered pyknometer method is also for use with solids and this method may also be used for coal tar products, including road tars, creosote and tar pitches, or for mixtures of these with petroleum products. This method is not suitable for the determination of the density or relative density of highly volatile liquids having Reid vapour pressures greater than 50 kPa according to ISO 3007 or having an initial boiling point below 40 degrees Celsius.
The graduated bicapillary pyknometer method is recommended for the accurate determination of the density or relative density of all except the more viscous products, and is particularly useful when only small amounts of samples are available. The method is restricted to liquids having Reid vapour pressures of 130 kPa or less according to ISO 3007 and having kinematic viscosities less than 50 mm2/s (50 centistokes (cSt)) at the test temperature.
Special precautions are specified for the determination of the density or relative density of highly volatile liquids.

Rohöl und flüssige oder feste Mineralölerzeugnisse - Bestimmung der Dichte oder der relativen Dichte - Verfahren mittels Pyknometer mit Kapillarstopfen und Bikapillar-Pyknometer mit Skale (ISO 3838:2004)

Pétrole brut et produits pétroliers liquides ou solides - Détermination de la masse volumique ou de la densité relative - Méthodes du pycnometre a bouchon capillaire et du pycnometre bicapillaire gradué (ISO 3838:2004)

L'ISO 3838:2004 spécifie des méthodes de détermination de la masse volumique ou de la densité du pétrole brut et des produits pétroliers manipulés sous forme liquide.
La méthode qui utilise le pycnomètre à bouchon capillaire s'applique aussi aux produits sous forme solide et cette méthode peut aussi être appliquée aux goudrons de houille, y compris les goudrons pour revêtement routier, les créosotes et les brais, ou à des mélanges de ces goudrons avec des produits pétroliers. Cette méthode ne convient pas à la détermination de la masse volumique ou de la densité de liquides très volatils dont les pressions de vapeur Reid déterminées selon l'ISO 3007 sont supérieures à 50 kPa ou dont le point d'ébullition initial est inférieur à 40 °C.
La méthode utilisant le pycnomètre bicapillaire gradué est recommandée pour la détermination précise de la masse volumique ou de la densité de tous les produits, à l'exception des plus visqueux; elle est particulièrement utile lorsque de faibles quantités d'échantillon sont disponibles. L'application de la méthode est limitée aux liquides dont la pression de vapeur Reid déterminée selon l'ISO 3007 est inférieure ou égale à 130 kPa (1,3 bar) et dont la viscosité cinématique est inférieure à 50 mm2/s [50 centistokes (cSt)] à la température de l'essai.
Des précautions spéciales sont spécifiées dans le cas de la détermination de la masse volumique ou de la densité des liquides très volatils.

Surova nafta in tekoči ali trdni naftni proizvodi - Določanje gostote ali relativne gostote - Metoda s piknometrom s kapilarnim zamaškom in metoda z graduiranim bikapilarnim piknometrom (ISO 3838:2004)

Standard ISO 3838:2004 določa metodo za določanje gostote ali relativne gostote surove nafte in naftnih proizvodov, ki se jih obravnava kot tekočine.
Metoda s piknometrom s kapilarnim zamaškom se prav tako uporablja s trdnimi naftnimi proizvodi in tudi za katranske derivate, vključno s cestnim katranom, kreozotom in katransko smolo, ali za njihove mešanice z naftnimi proizvodi. Ta metoda ni primerna za določanje gostote ali relativne gostote izjemno hlapnih tekočin s parnim tlakom po Reidu, večjim od 50 kPa v skladu s standardom ISO 3007, ali ki imajo začetno vrelišče pod 40 stopinjami Celzija.
Metodo z graduiranim bikapilarnim piknometrom se priporoča za natančno določanje gostote ali relativne gostote vseh proizvodov, razen bolj viskoznih, in je še posebej uporabna, ko so na voljo samo majhne količine vzorcev. Metoda je omejena na tekočine, ki imajo parni tlak po Reidu 130 kPa ali manj v skladu s standardom ISO 3007, in ki imajo kinematično viskoznost manj kot 50 mm2/s (50 centistokov (cSt)) pri preskusni temperaturi.
Posebni varnostni ukrepi so določeni za določanje gostote ali relativne gostote in izjemno hlapnih tekočin.

General Information

• Status: Published
• Publication Date: 31-Aug-2004
• ICS: 75.040 - Crude petroleum
• ICS: 75.080 - Petroleum products in general
• Technical Committee: NAD - Petroleum products, lubricants and related products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Sep-2004
• Due Date: 01-Sep-2004
• Completion Date: 01-Sep-2004
• Ref Project: EN ISO 3838:2004 - Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods (ISO 3838:2004)

Relations

• Replaces: SIST EN ISO 3838:1998 - Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods (ISO 3838:1983)
• Effective Date: 01-Sep-2004
• Amended By: SIST EN ISO 3838:2004/A1:2024 - Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods - Amendment 1 (ISO 3838:2004/Amd 1:2023)
• Effective Date: 01-Feb-2024

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.JUDGXLUDQLPRohöl und flüssige oder feste Mineralölerzeugnisse - Bestimmung der Dichte oder der relativen Dichte - Verfahren mittels Pyknometer mit Kapillarstopfen und Bikapillar-Pyknometer mit Skale (ISO 3838:2004)Pétrole brut et produits pétroliers liquides ou solides - Détermination de la masse volumique ou de la densité relative - Méthodes du pycnometre a bouchon capillaire et du pycnometre bicapillaire gradué (ISO 3838:2004)Crude petroleum and liquid or solid petroleum products - Determination of density or relative density - Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods (ISO 3838:2004)75.080Naftni proizvodi na splošnoPetroleum products in general75.040Surova naftaCrude petroleumICS:Ta slovenski standard je istoveten z:EN ISO 3838:2004SIST EN ISO 3838:2004en01-september-2004SIST EN ISO 3838:2004SLOVENSKI
STANDARDSIST EN ISO 3838:19981DGRPHãþD



SIST EN ISO 3838:2004



SIST EN ISO 3838:2004



SIST EN ISO 3838:2004



Reference numberISO 3838:2004(E)© ISO 2004
INTERNATIONAL STANDARD ISO3838Second edition2004-05-01Crude petroleum and liquid or solid petroleum products — Determination of density or relative density — Capillary-stoppered pyknometer and graduated bicapillary pyknometer methods Pétrole brut et produits pétroliers liquides ou solides — Détermination de la masse volumique ou de la densité — Méthodes du pycnomètre à bouchon capillaire et du pycnomètre bicapillaire gradué
SIST EN ISO 3838:2004



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SIST EN ISO 3838:2004



ISO 3838:2004(E) © ISO 2004 – All rights reserved iii Contents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Terms and definitions.2 4 Principle.2 4.1 Capillary-stoppered pyknometer.2 4.2 Graduated bicapillary pyknometer.2 5 Apparatus.2 6 Preparation of pyknometer.6 7 Calibration of pyknometer.6 7.1 Conditioning.6 7.2 Capillary-stoppered pyknometer.8 7.3 Graduated bicapillary pyknometer.
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