TP017 - Pravilnik o monitoringu fizikalno-kemijskih lastnosti tekočih goriv

This document specifies the methodology for the design of an Interlaboratory Study (ILS) and
calculation of precision estimates of a test method specified by the study. In particular, it defines the
relevant statistical terms (Clause 3), the procedures to be adopted in the planning of ILS to determine
the precision of a test method (Clause 4), and the method of calculating the precision from the results of
such a study (Clauses 5 and 6).
The procedures in this document have been designed specifically for petroleum and petroleum related
products, which are normally considered as homogeneous. However, the procedures described in this
document can also be applied to other types of homogeneous products. Careful investigations are
necessary before applying this document to products for which the assumption of homogeneity can be
questioned.

This document specifies the methodology for the application of precision estimates of a test method
derived from ISO 4259-1. In particular, it defines the procedures for setting the property specification
limits based upon test method precision where the property is determined using a specific test method,
and in determining the specification conformance status when there are conflicting results between
supplier and receiver. Other applications of this test method precision are briefly described in principle
without the associated procedures.
The procedures in this document have been designed specifically for petroleum and petroleum-related
products, which are normally homogeneous. However, the procedures described in this document can
also be applied to other types of homogeneous products. Careful investigations are necessary before
applying this document to products for which the assumption of homogeneity can be questioned.

ISO/IEC 17025:2017 specifies the general requirements for the competence, impartiality and consistent operation of laboratories.
ISO/IEC 17025:2017 is applicable to all organizations performing laboratory activities, regardless of the number of personnel.
Laboratory customers, regulatory authorities, organizations and schemes using peer-assessment, accreditation bodies, and others use ISO/IEC 17025:2017 in confirming or recognizing the competence of laboratories.

This European Standard specifies requirements and test methods for marketed and delivered
automotive diesel fuel. It is applicable to automotive diesel fuel for use in diesel engine vehicles
designed to run on automotive diesel fuel containing up to 7,0 %(V/V) Fatty Acid Methyl Ester.
NOTE 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.

This European Standard specifies requirements and test methods for marketed and delivered unleaded
petrol. It is applicable to unleaded petrol for use in petrol engine vehicles designed to run on unleaded
petrol.
This European Standard specifies two types of unleaded petrol: one type with a maximum oxygen
content of 3,7 % (m/m) and a maximum ethanol content of 10,0 % (V/V) in Table 1, and one type
intended for older vehicles that are not warranted to use unleaded petrol with a high biofuel content,
with a maximum oxygen content of 2,7 % (m/m) and a maximum ethanol content of 5,0 % (V/V) in
Table 2.
NOTE 1 The two types are based on European Directive requirements [3], [4], ![11]".
NOTE 2 For the purposes of this European Standard, the terms “% (m/m)” and “% (V/V)” are used to represent
respectively the mass fraction, μ, and the volume fraction, φ.

This document specifies a system for fuel quality monitoring of petrol and diesel (FQMS).

This method specifies the sampling method from service station pumps for petrol and diesel.

This document specifies a system for fuel quality monitoring of petrol and diesel (FQMS).

This International Standard contains requirements for the competence of bodies performing inspection and for the impartiality and consistency of their inspection activities. It applies to inspection bodies of type A, B or C, as defined in this International Standard, and it applies to any stage of inspection.

This International Standard specifies a method for the determination of the sulfur content of liquid petroleum products, additives for petroleum products, and semi-solid and solid petroleum products that are either liquefied by moderate heating or soluble in organic solvents (see 4.1) of negligible or accurately known sulfur content. The method is applicable to products or additives having sulfur contents in the range 0,001 % (m/m) to 2,50 % (m/m); higher contents can be determined by appropriate dilution. Other elements do not interfere at concentrations anticipated in the materials subject to this analysis. High concentrations of phosphorus or chlorine [typically above 3 % (m/m)] can cause bias in the sulfur result by absorbing Zr-L and S-K to different extents. It is necessary in these cases to carry out studies to determine whether this potential interference is significant. When larger amounts of molybdenum are present (typically above 50 mg/kg to 100 mg/kg), increased background radiation and spectral overlap with the sulfur signal can occur. It is necessary in these cases to inspect the relevant spectral regions, for example, to investigate the significance of this potential source of bias.

Migrated from Progress Sheet (TC Comment) (2000-07-10): WI revises ISO 3170:1988 (ZM 971106). ++ TC Secr(fax of 1997-10-30): it will take 2 years before a DIS is expected. ++ TA/971118. ++ New TC forecasts in rev BP (NT/01-01-02)

New TC forecasts in rev BP (NT/01-01-02)

This International Standard covers the calculation of precision estimates and their application to specifications. In particular, it contains definitions of relevant statistical terms (Clause 3), the procedures to be adopted in the planning of an inter-laboratory test programme to determine the precision of a test method (Clause 4), the method of calculating the precision from the results of such a programme (Clauses 5 and 6), and the procedure to be followed in the interpretation of laboratory results in relation both to precision of the test methods and to the limits laid down in specifications (Clauses 7 to 10 ). The procedures in this International Standard have been designed specifically for petroleum and petroleum related products , which are normally homogeneous. However, the procedures described in this International Standard can also be applied to other types of homogeneous products. Careful investigations are necessary before applying this International Standard to products for which the assumption of homogeneity can be questioned.

The procedure specified may be applied to products having contents in the range 1 to 1O OOO mg/kg and is particularly suitable for distillates with less than 3OO mg/kg. Test samples which are viscous, highly aromatic, or of high content may be first diluted with a sulfur-free solvent. The procedure can be used for natural and refinery gases, also for substances supplied to the burner in the liquid state and for the determination of volatile sulfur in substances supplied to the burner in the gaseous state after vaporisation from the liquid phase. It is not suitable for heavy-duty engine oils.