SIST EN 7:1998
(Main)Determination of ash from petroleum products
Determination of ash from petroleum products
Bestimmung der Asche von Mineralölerzeugnissen
Détermination des cendres dans les produits pétroliers
[Not translated]
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 7:1998
01-maj-1998
[Not translated]
Determination of ash from petroleum products
Bestimmung der Asche von Mineralölerzeugnissen
Détermination des cendres dans les produits pétroliers
Ta slovenski standard je istoveten z: EN 7:1974
ICS:
75.080 Naftni proizvodi na splošno Petroleum products in
general
SIST EN 7:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževan
...
This May Also Interest You
This document specifies a method to identify and compare the compositional characteristics of oil
samples. Specifically, it describes the detailed analytical and data processing methods for identifying the
characteristics of spill samples and establishing their correlation to suspected source oils. Even when
samples or data from suspected sources are not available for comparison, establishing the specific nature
(e.g. refined petroleum, crude oil, waste oil, etc.) of the spilled oil still helps to constrain the possible
source(s).
This methodology is restricted to petroleum related products containing a significant proportion of
hydrocarbon-components with a boiling point above 150 °C. Examples are: crude oils, higher boiling
condensates, diesel oils, residual bunker or heavy fuel oils, lubricants, and mixtures of bilge and sludge
samples, as well as distillate fuels and blends. While the specific analytical methods are perhaps not
appropriate for lower boiling oils (e.g. kerosene, jet fuel, or gasoline), the general concepts described in
this methodology, i.e. statistical comparison of weathering-resistant diagnostic ratios, are applicable in
spills involving these kinds of oils.
Paraffin products (e.g. waxes, etc.) are outside the scope of this method because too many compounds
are removed during the production process [37] to correctly distinguish them from each other. However,
the method can be used to identify the type of product involved.
Although not directly intended for identifying oil recovered from groundwater, vegetation,
wildlife/tissues, soil, or sediment matrices, they are not precluded. However, caution is needed as
extractable compounds can be present in these matrices that alter and/or contribute additional
compounds compared to the source sample. If unrecognized, the contribution from the matrix can lead
to false “non-matches”. It is therefore advisable to analyse background sample(s) of the matrix that
appear unoiled.
When analysing “non-oil” matrices additional sample preparation (e.g. clean-up) is often required prior
to analysis and the extent to which the matrix affects the correlation achieved is to be considered.
Whether the method is applicable for a specific matrix depends upon the oil concentration compared to
the “matrix concentration”. In matrices containing high concentrations of oil, a positive match can still be
concluded. In matrices containing lower concentrations of oil, a false “non-match” or an “inconclusive
match” can result from matrix effects. Evaluation of possible matrix effects is beyond the scope of this
document.
- Standard219 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft194 pagesEnglish languagesale 10% offe-Library read for×1 day
EN 15522-1 provides guidance on taking and handling samples, that are collected as part of an investigation into the likely source of a crude oil or petroleum product spill into a marine or aquatic environment. Guidance is given on taking samples from both the spill and its potential source.
Mostly, oil sampling is part of legal procedures and has to be treated like any other preservation of evidence (legal sampling). If samples are to be used in connection with legal proceedings, this document should be read in conjunction with any documents issued by the regulatory authorities in the country or countries in question where the spill has occurred.
Taking samples may involve hazardous materials, operations and equipment.
This document is not intended to address all the safety and health aspects associated with the guidance given. It is the responsibility of the user to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note: Most countries have special trained teams to take samples on board of ships. As police officer or law enforcer don’t take unnecessary risks and ask assistance from such a team when available.
For the sake of clarity, the word ‘oil’ is used throughout this document. It can equally refer to crude oil, a petroleum product or mixtures of such.
- Standard31 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft29 pagesEnglish languagesale 10% offe-Library read for×1 day
This document describes three procedures (A, B and C) covering determinations of flash no-flash and flash point.
Rapid equilibrium procedures A and B are applicable to flash no-flash and flash point tests of paints, including water-borne paints, varnishes, binders for paints and varnishes, adhesives, solvents, petroleum products including aviation turbine, diesel and kerosene fuels, fatty acid methyl esters and related products over the temperature range –30 °C to 300 °C. The rapid equilibrium procedures are used to determine whether a product will or will not flash at a specified temperature (flash no-flash procedure A) or the flash point of a sample (procedure B). When used in conjunction with the flash detector (A.1.6), this document is also suitable to determine the flash point of fatty acid methyl esters (FAME). The validity of the precision is given in Table 2.
Non-equilibrium procedure C is applicable to petroleum products including aviation turbine, diesel and kerosine fuels, and related petroleum products, over the temperature range –20 °C to 300 °C. The non-equilibrium procedure is automated to determine the flash point. Precision has been determined over the range 40 °C to 135 °C.
For specifications and regulations, procedures A or B are routinely used (see 10.1.1).
- Standard35 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft33 pagesEnglish languagesale 10% offe-Library read for×1 day
- Amendment7 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft5 pagesEnglish languagesale 10% offe-Library read for×1 day
This document specifies a test method for the determination of the content of mono-aromatic, di-aromatic and tri+-aromatic hydrocarbons in diesel fuels, paraffinic diesel fuels and petroleum distillates.
This document defines two procedures, A and B.
Procedure A is applicable to diesel fuels that may contain fatty acid methyl esters (FAME) up to 30 % (V/V) (as in [1], [2] or [3]) and petroleum distillates in the boiling range from 150 °C to 400 °C (as in [4].
Procedure B is applicable to paraffinic diesel fuels with up to 7 % (V/V) FAME. This procedure does not contain a dilution of the sample in order to determine the low levels of aromatic components in these fuels.
The polycyclic aromatic hydrocarbons content is calculated from the sum of di-aromatic and tri+-aromatic hydrocarbons and the total content of aromatic compounds is calculated from the sum of the individual aromatic hydrocarbon types.
Compounds containing sulfur, nitrogen and oxygen can interfere in the determination; mono-alkenes do not interfere, but conjugated di-alkenes and poly-alkenes, if present, can do so.
NOTE 1 For the purpose of this European Standard, the terms "% (m/m)" and "% (V/V)" are used to represent the mass fraction, µ, and the volume fraction, φ, of a material respectively.
NOTE 2 By convention, the aromatic hydrocarbon types are defined on the basis of their elution characteristics from the specified liquid chromatography column relative to model aromatic compounds. Their quantification is performed using an external calibration with a single aromatic compound for each of them, which may or may not be representative of the aromatics present in the sample. Alternative techniques and test methods may classify and quantify individual aromatic hydrocarbon types differently.
NOTE 3 Backflush is part of laboratory-internal maintenance.
WARNING - The use of this standard can involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.
- Standard21 pagesEnglish languagesale 10% offe-Library read for×1 day
This document specifies the methodology to determine if a laboratory is in control in the execution of a standard test method. By using statistical control charts and following this document the 'in-statistical-control' status is established and validated. In-statistical-control means the test results produced by the lab on control samples are reasonably consistent with expectation over time; with random variation scattered around a stable expected centre due to common causes only
This document explicitly defines ‘site precision’ conditions as single apparatus, multi-operators, over a long time horizon. It specifies control charts that are most appropriate for ISO TC28 test methods where the dominant common cause variation is associated with the long term, multiple operator conditions as described by "site precision" conditions. The control charts specified for determination of in-statistical-control are: Individual (I), Moving Range of 2 (MR2), Exponentially Weighted Moving Average (EWMA), and zone-based run rules (commonly known as Western Electric (WE)run rules.
The procedures in this document have been designed specifically for petroleum and petroleum related products, which are normally considered as homogeneous and for test methods which show normality in obtaining their results. However, the procedures described in this document can also be applied to other types of homogeneous products and test methods.
- Standard44 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft37 pagesEnglish languagesale 10% offe-Library read for×1 day
This European Standard specifies a fluorescent indicator adsorption method for the determination of hydrocarbon types over the concentration ranges from 5 % (V/V) to 99 % (V/V) aromatic hydrocarbons, 0,3 % (V/V) to 55 % (V/V) olefins, and 1 % (V/V) to 95 % (V/V) saturated hydrocarbons in petroleum fractions that distil below 315 ºC. This method may apply to concentrations outside these ranges, but the precision has not been determined.
When samples containing oxygenated blending components are analysed, the hydrocarbon type results can be reported on an oxygenate-free basis or, when the oxygenate content is known, the results can be corrected to a total-sample basis.
This test method is for use with full boiling range products. Cooperative data have established that the precision statement does not apply to petroleum fractions with narrow boiling ranges near the 315 °C limit. Such samples are not eluted properly, and results are erratic.
Samples containing dark-coloured components that interfere with reading the chromatographic bands cannot be analysed.
NOTE 1 The oxygenated blending components methanol, ethanol, tert-butyl methyl ether (MTBE), methyl tert-pentyl ether (TAME) and tert-butyl ethyl ether (ETBE) do not interfere with the determination of hydrocarbon types at concentrations normally found in commercial petroleum blends. These oxygenated compounds are not detected since they elute with the alcohol desorbent. The effects of other oxygenated compounds should be individually verified.
NOTE 2 For the purposes of this European Standard, the terms “% (m/m)” and “% (V/V)” are used to represent respectively the mass fraction and the volume fraction.
WARNING — The use of this European Standard may involve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices
- Standard19 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft19 pagesEnglish languagesale 10% offe-Library read for×1 day
This European Standard describes a method for the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. The standard is applicable to stabilized crude oils and for the boiling range distribution and the recovery up to and including n-nonane. A stabilized crude oil is defined as having a Reid Vapour Pressure equivalent to or less than 82,7 kPa as determined by IP 481 [3].
NOTE For the purposes of this European Standard, the terms “% (m/m)” and “% (V/V)” are used to represent respectively the mass fraction, ω, and the volume fraction, φ.
WARNING —The use of this European Standard may involve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
- Standard31 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft30 pagesEnglish languagesale 10% offe-Library read for×1 day
This document specifies a method for the determination of the manual and automated closed cup flash
point of combustible liquids having flash points between –30,0 °C to 75,0 °C. However, the precision
given for this method is only valid for flash points in the range −8,5 °C to 75,0 °C.
This document is not applicable to water-borne paints.
NOTE 1 Water borne paints can be tested using ISO 3679[1].
NOTE 2 See 9.1 for the importance of this test in avoiding loss of volatile materials.
NOTE 3 Liquids containing halogenated compounds can give anomalous results.
NOTE 4 The thermometer specified for the manual apparatus limits the upper test temperature to 70,0 °C.
NOTE 5 See 13.1 for more specific information related to precision.
- Standard32 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft30 pagesEnglish languagesale 10% offe-Library read for×1 day
- Amendment7 pagesEnglish languagesale 10% offe-Library read for×1 day
- Draft5 pagesEnglish languagesale 10% offe-Library read for×1 day
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.