SIST EN 238:1998/A1:2004

• Abstract:

  Updated precision data for benzene levels around 1% and below, as given in the Report of WG 9, doc. N 1108.

• Status: Published
• Publication Date: 30-Jun-2004
• ICS: 75.160.20 - Liquid fuels
• Technical Committee: NAD - Petroleum products, lubricants and related products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Jul-2004
• Due Date: 01-Jul-2004
• Completion Date: 01-Jul-2004
• Ref Project: EN 238:1996/A1:2003 - Liquid petroleum products - Petrol - Determination of the benzene content by infrared spectrometry

• Referred By: SIST EN 228:2012 - Automotive fuels - Unleaded petrol - Requirements and test methods
• Effective Date: 28-Jan-2026
• Referred By: SIST EN 228:2012+A1:2017 - Automotive fuels - Unleaded petrol - Requirements and test methods
• Effective Date: 28-Jan-2026
• Amends: SIST EN 238:1998 - Liquid petroleum products - Petrol - Determination of the benzene content by infrared spectrometry
• Effective Date: 22-Dec-2008

SIST EN 238:1998/A1:2004 is the Slovenian adoption of EN 238:1996/A1:2003, published by SIST. It updates the precision data for determining benzene in petrol by infrared spectrometry, with the change focused on benzene levels around 1% and below. Laboratories and fuel quality teams use it when they need the revised performance data for this test method.

What does SIST EN 238:1998/A1:2004 specify?

SIST EN 238:1998/A1:2004 specifies an amendment to the petrol benzene test by infrared spectrometry. Its scope is limited to updated precision data for benzene concentrations around 1% and below, so the practical effect is on how results in that range are judged and reported.

The document is identified as identical to EN 238:1996/A1:2003. In practice, this means users apply it together with the base test method for liquid petroleum products - petrol.

What are the key requirements of SIST EN 238:1998/A1:2004?

The main technical point in SIST EN 238:1998/A1:2004 is the revised precision data for the infrared spectrometric determination of benzene in petrol. For users, this matters because precision data describe how much variation can be expected from the measurement, especially near the low benzene levels named in the scope.

• Use the amended precision data for benzene around 1% and below. This is the core change, and it affects result evaluation in the low-concentration range.
• Apply the method to petrol and liquid petroleum products. The standard remains tied to fuel analysis, so it is relevant when benzene content in petrol must be measured.
• Base interpretation on the infrared spectrometry method. The amendment does not change the subject of the test; it updates the performance data for that test principle.
• Treat the update as a precision revision, not a new analytical method. In practice, laboratories should look for revised acceptance of measurement variability rather than a new sampling or instrument setup.
• Use the WG 9 precision report behind the amendment. The scope points to Report of WG 9, doc. N 1108, which shows the precision data were revised from a technical review.
• Focus on the low-benzene range when applying the amendment. That is where the updated figures are intended to matter most for routine testing and quality control.

What changed in SIST EN 238:1998/A1:2004 from the previous edition?

SIST EN 238:1998/A1:2004 updates the precision data for benzene levels around 1% and below. The amendment is based on the Report of WG 9, doc. N 1108, so the change is a technical refinement of the measurement performance information rather than a change in the test purpose.

Who uses SIST EN 238:1998/A1:2004?

SIST EN 238:1998/A1:2004 is used by laboratories, fuel producers, quality managers, and buyers who need benzene measurements in petrol. It is relevant wherever infrared spectrometry is used to check product quality, compare test results, or support product acceptance decisions for liquid petroleum products.

What does the SIST EN 238:1998/A1:2004 document contain?

SIST EN 238:1998/A1:2004 is a short amendment document centered on revised precision data. The published material includes the multilingual identification of the standard, the statement that it is identical to EN 238:1996/A1:2003, and the scope note describing the precision update.

For a user, the value of the document is in the revised measurement performance information for benzene in petrol, not in a full rewrite of the infrared spectrometry method. It is the reference to check when low-level benzene results need to be assessed against the updated precision basis.

SLOVENSKI STANDARD
01-julij-2004
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VSHNWURPHWULMR
Liquid petroleum products - Petrol - Determination of the benzene content by infrared
spectrometry
Flüssige Mineralölerzeugnisse - Ottokraftstoff - Bestimmung des Benzolgehaltes durch
Infrarotspektrometrie
Produits pétroliers liquides - Essence - Détermination de la teneur en benzene par
spectrométrie infrarouge
Ta slovenski standard je istoveten z: EN 238:1996/A1:2003
ICS:
75.160.20 7HNRþDJR
...