EN ISO 8819:1995
(Main)Liquefied petroleum gases - Detection of hydrogen sulfide - Lead acetate method (ISO 8819:1993)
Liquefied petroleum gases - Detection of hydrogen sulfide - Lead acetate method (ISO 8819:1993)
Specifies a procedure for the detection of hydrogen sulfide. The lower limit of detectability is 4 mg of hydrogen sulfide in 1 m^3 of gas. Methyl mercaptan, if present, produces a transistory yellow stain on the lead acetate paper which, however, fades completely in less than 5 min. Other sulfur compounds present in the gas do not interfere with the test.
Flüssiggas - Nachweis von Schwefelwasserstoff - Bleiacetatverfahren (ISO 8819:1993)
Diese Internationale Norm beschreibt ein Verfahren zum Nachweis von Schwefel- wasserstoff in Flüssiggasen. Die untere Erfassungsgrenze ist 4 mg Schwefel- wasserstoff je m3 Flüssiggas. Falls Methylmercaptan vorhanden ist, bildet sich auf dem Bleiacetatpapier eine gelbe Verfärbung, die jedoch innerhalb von weniger als 5 min vollständig verschwindet. Andere in Flüssiggas vorhandene Schwefelverbindungen stören den Nachweis nicht.
Gaz de pétrole liquéfiés - Détection de l'acide sulfhydrique - Méthode à l'acétate de plomb (ISO 8819:1993)
La présente Norme internationale prescrit une méthode pour la détection de l'acide sulfhydrique contenu dans les gaz de pétrole liquéfiés. Le seuil de détectabilité est de 4 mg d'acide sulfhydrique dans 1 m3 de gaz de pétrole liquéfié. La présence de méthylmercaptan se traduit par une tache jaune passagère sur le papier réactif à l'acétate de plomb, qui disparaît complètement en moins de 5 min. La présence d'autres composés soufrés dans le gaz de pétrole liquéfié n'a aucune répercussion sur l'essai.
NOTE 1 Les gaz de pétrole liquéfiés et les produits de leur combustion ne devraient pas être trop corrosifs ni trop réactifs vis-à-vis des matériaux avec lesquels ils se trouvent en contact. Il est donc important de détecter la présence d'acide sulfhydrique, lequel est une substance très réactive. De plus, l'odeur de l'acide sulfhydrique est inacceptable pour certaines utilisations des gaz de pétrole liquéfiés (essence à briquet, par exemple).
Utekočinjeni naftni plin - Detekcija hidrogen sulfida - Metoda s svinčevim acetatom (ISO 8819:1993)
General Information
- Status
- Published
- Publication Date
- 09-Jan-1995
- Technical Committee
- CEN/TC 19 - Petroleum products, lubricants and related products
- Drafting Committee
- CEN/TC 19 - Petroleum products, lubricants and related products
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 27-May-2010
- Completion Date
- 27-May-2010
Relations
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN ISO 8819:1995 (ISO 8819:1993) specifies a simple, qualitative procedure for the detection of hydrogen sulfide (H2S) in liquefied petroleum gases (LPG) using the lead acetate method. The procedure detects H2S at a lower limit of 4 mg H2S per 1 m³ of gas. The method is intended for on‑site assessment of H2S presence and distinguishes transient responses (e.g., methyl mercaptan) from persistent H2S staining.
Key topics and technical requirements
- Detection principle: Vaporized LPG sample is passed over moist lead acetate paper; H2S reacts to form lead sulfide, producing a colour change from yellow to black.
- Limit of detectability:4 mg H2S / 1 m³ gas.
- Interferences: Methyl mercaptan causes a transitory yellow stain on lead acetate paper that fades within 5 minutes; other sulfur compounds present do not interfere with the test.
- Test apparatus and materials:
- Lead acetate test paper prepared by dipping filter paper into a 50 g/L aqueous lead acetate solution or commercially equivalent paper.
- Paper strip dimensions: approx. 51 mm × 9.5 mm with a 3.5 mm hole for hanging.
- Test rig includes a glass cylinder, water reservoir at 60–80 °C, stainless steel tubing and a needle valve; flow indicator measuring 2–3 L/min.
- Operating conditions: Adjust flow to 2.3 L/min ± 0.2 L/min and expose the paper for exactly 2 minutes. Flush sample lines for ~1 minute before testing.
- Sampling guidance: Prefer direct connection to the sample source; avoid rubber hoses and, where possible, avoid use of sample cylinders because of adsorption/contamination risks discussed in Annex A.
- Test reporting: Reports must include product identification, reference to EN ISO 8819, test result (H2S positive/negative or methyl mercaptan present), deviations from procedure, and test date.
- Safety note: Standard warns of hazardous materials and operations; users must follow appropriate safety and regulatory measures.
Applications
- Routine on‑site screening of LPG batches for hydrogen sulfide contamination.
- Pre‑shipment or fueling point checks where H2S odor or corrosivity is a concern.
- Quick qualitative assessment by gas producers, distributors, safety inspectors and field testing teams.
Who uses this standard
- LPG producers and distributors
- Quality control laboratories and field technicians
- Safety and regulatory inspectors concerned with gas corrosivity and odor issues
Related standards
- EN ISO 8819 is part of the suite of LPG quality and safety standards. For comprehensive compliance, users typically apply this test alongside other ISO/CEN standards covering LPG sampling, composition analysis and safety procedures.
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Frequently Asked Questions
EN ISO 8819:1995 is a standard published by the European Committee for Standardization (CEN). Its full title is "Liquefied petroleum gases - Detection of hydrogen sulfide - Lead acetate method (ISO 8819:1993)". This standard covers: Specifies a procedure for the detection of hydrogen sulfide. The lower limit of detectability is 4 mg of hydrogen sulfide in 1 m^3 of gas. Methyl mercaptan, if present, produces a transistory yellow stain on the lead acetate paper which, however, fades completely in less than 5 min. Other sulfur compounds present in the gas do not interfere with the test.
Specifies a procedure for the detection of hydrogen sulfide. The lower limit of detectability is 4 mg of hydrogen sulfide in 1 m^3 of gas. Methyl mercaptan, if present, produces a transistory yellow stain on the lead acetate paper which, however, fades completely in less than 5 min. Other sulfur compounds present in the gas do not interfere with the test.
EN ISO 8819:1995 is classified under the following ICS (International Classification for Standards) categories: 75.160.30 - Gaseous fuels. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 8819:1995 has the following relationships with other standards: It is inter standard links to EN 589:2018, EN ISO 13710:2004, EN 589:2018+A1:2022, EN 589:2024, EN 589:2008+A1:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN ISO 8819:1995 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-1998
8WHNRþLQMHQLQDIWQLSOLQ'HWHNFLMDKLGURJHQVXOILGD0HWRGDVVYLQþHYLPDFHWDWRP
,62
Liquefied petroleum gases - Detection of hydrogen sulfide - Lead acetate method (ISO
8819:1993)
Flüssiggas - Nachweis von Schwefelwasserstoff - Bleiacetatverfahren (ISO 8819:1993)
Gaz de pétrole liquéfiés - Détection de l'acide sulfhydrique - Méthode a l'acétate de
plomb (ISO 8819:1993)
Ta slovenski standard je istoveten z: EN ISO 8819:1995
ICS:
75.160.30 Plinska goriva Gaseous fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL Is0
STANDARD
Second edition
1993-I o-01
Liquefied petroleum gases - Detection of
hydrogen sulfide - Lead acetate method
Gaz de p&role liqukfi& - Dbtection de I’acide sulfh ydrique - M&hode
2 I’ac6tate de plomb
Reference number
IS0 8819:1993(E)
IS0 8819:1993(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
technical committees. Each member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 8819 was prepared by Technical Committee
ISODC 28, Petroleum products and lubricants.
This second edition cancels and replaces the first edition
(IS0 8819:1987), which has been technically revised.
Annex A of this International Standard is for information only.
0 IS0 1993
All rights reserved. No part of this publication may be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying and microfilm, without per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
II
INTERNATIONAL STANDARD IS0 8819:1993(E)
Liquefied petroleum gases - Detection of hydrogen
sulfide - Lead acetate method
WARNING - The use of this International Standard may 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 the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory limitations prior to use.
3.2 Lead acetate test paper, either prepared by
1 Scope
dipping strips of smooth filter paper into an aqueous
50 g/l solution of lead acetate, withdrawing the strips
This International Standard specifies a method for the
and removing excess solution from them with clean
detection of hydrogen sulfide in liquefied petroleum
filter paper, or commercially available test paper if it
gases.
is of a type that has been shown to give similar re-
sults to paper prepared as above.
The lower limit of detectability is 4 mg of hydrogen
sulfide in 1 m3 of liquefied petroleum gas. Methyl
The strips of the test paper shall be approximately
mercaptan, if present, produces a transitory yellow
51 mm long by 9,5 mm wide and have a 3,5 mm di-
stain on lead acetate paper which, however, fades
ameter hole near to one end. This hole shall permit
completely in less than 5 min. Other sulfur com-
the strip to hang freely in the test apparatus.
pounds present in liquefied petroleum gas do not in-
terfere with the test.
3.3 Flow indicator, comprising a wet test meter or
NOTE 1 Liquefied petroleum gases and the products of variable area flowmeter, which measures gas flow
their combustion should not be unduly corrosive or reactive
rates in the range of 2 I/min to 3 I/min.
to materials with which
...
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