Petroleum and related products - Precision of measurement methods and results - Part 1: Determination of precision data in relation to methods of test (ISO/DIS 4259‑1:2025)

Comment end date 2025-06-17

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Project stage codes

1. Prioritetinių darbo temų pažymėjimas ir ekspertų skyrimas

2. Projektas

3. Viešoji apklausa

From 2025-04-18 till 2025-06-17

4. Closure of enquiry

5. Submission to Formal Vote

Organisation

CEN Europos standartizacijos komitetas

ICS

75.080 - Petroleum products in general

Technical Committee

TK 40 Petroleuml, petroleum products, lubricants and alternative fuels

ForeignTC'S

CEN/TC 19

Number of comments

Comment start date

2025-04-18

Scope

ISO 4259-1:2017 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 ISO 4259-1:2017 have been designed specifically for petroleum and petroleum related products, which are normally considered as homogeneous. However, the procedures described in ISO 4259-1:2017 can also be applied to other types of homogeneous products. Careful investigations are necessary before applying ISO 4259-1:2017 to products for which the assumption of homogeneity can be questioned.

Relations

Pakeis

LST EN ISO 4259-1:2018

Pakeis

LST EN ISO 4259-1:2018/A1:2019

Pakeis

prEN ISO 4259-1