ISO 3771:2011
Current
The latest, up-to-date edition.
Petroleum products — Determination of base number — Perchloric acid potentiometric titration method
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05-09-2011
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ISO 3771:2011 specifies a method for the determination of basic constituents in petroleum products by potentiometric titration with perchloric acid in glacial acetic acid.
The constituents that can be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (e.g. soaps), basic salts of polyacid bases, and salts of heavy metals.
The ranges of base number values for which precision values for the method have been established are:
- unused oils: base numbers from 3 to 45;
- additive concentrates: base numbers from 5 to 45;
- used oils: base numbers from 3 to 30.
| DevelopmentNote |
Supersedes ISO/DIS 3771. (09/2011)
|
| DocumentType |
Standard
|
| Pages |
8
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS ISO 3771:2011 | Identical |
| PN ISO 3771 : 2012 | Identical |
| GOST ISO 3771 : 2013 | Identical |
| NEN ISO 3771 : 2011 | Identical |
| BS 2000-276(2011) : 2011 | Identical |
| NBN T 52 112 : 1978 | Identical |
| DIN ISO 3771:1985-04 | Identical |
| NBN ISO 3771 : 2002 | Identical |
| DIN ISO 6618:2015-07 | Petroleum products and lubricants - Determination of acid or base number - Colour-indicator titration method (ISO 6618:1997) |
| BS ISO/TS 12927:1999 | Lubricants, industrial oils and related products (class L). Family M (metalworking). Guidelines for establishing specifications |
| BS 2000-139(1998) : 1998 | METHODS OF TEST FOR PETROLEUM AND ITS PRODUCTS - PETROLEUM PRODUCTS AND LUBRICANTS - DETERMINATION OF ACID OR BASE NUMBER - COLOUR-INDICATOR TITRATION METHOD |
| BS 7252-1:1997 | Metallic materials for surgical implants Specification for wrought stainless steel |
| ISO/TS 12927:1999 | Lubricants, industrial oils and related products (class L) — Family M (Metalworking) — Guidelines for establishing specifications |
| BS ISO 18436-5:2012 | Condition monitoring and diagnostics of machines. Requirements for qualification and assessment of personnel Lubricant laboratory technician/analyst |
| ISO 18436-5:2012 | Condition monitoring and diagnostics of machines — Requirements for qualification and assessment of personnel — Part 5: Lubricant laboratory technician/analyst |
| SAE MS 1000 : 2013 | LUBRICANTS, INDUSTRIAL OILS, AND RELATED PRODUCTS - CLASSIFICATION |
| UNI ISO 18436-5 : 2013 | CONDITION MONITORING AND DIAGNOSTICS OF MACHINES - REQUIREMENTS FOR QUALIFICATION AND ASSESSMENT OF PERSONNEL - PART 5: LUBRICANT LABORATORY TECHNICIAN/ANALYST |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
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