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ASTM D94-07(2012)
Standard Test Methods for Saponification Number of Petroleum Products
Automaticky přeložený název:
Standardní Zkušební metody pro číslo zmýdelnění ropných produktů
NORMA vydána dne 1.11.2012
Informace o normě:
Označení normy: ASTM D94-07(2012)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.11.2012
Kód zboží: NS-39843
Počet stran: 9
Přibližná hmotnost: 27 g (0.06 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM D94-07(2012) :
Keywords:
additives, lubricating oils, potentiometric titration, saponification number, ICS Number Code 75.080 (Petroleum products in general)
Doplňující informace
| Significance and Use | ||||||||||||||
|
5.1 Petroleum products can contain additives that react with alkali to form metal soaps. Fats are examples of such additives. Also, certain used engine oils, especially from turbine or internal combustion engines, can contain chemicals that will similarly react with alkali. The saponification number expresses the amount of base that will react with 1 g of sample when heated in a specific manner. This then gives an estimation of the amount of acid present in the sample, that is, any free acid originally present plus any combined (for example, in esters) that have been converted to metal soaps during the heating procedure. 5.2 Saponification numbers are also used in setting product specifications for lubricants and additives. |
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| 1. Scope | ||||||||||||||
|
1.1 These test methods cover the determination of the amount of constituents in petroleum products such as lubricants, additives, and transmission fluids that will saponify under the conditions of the test. 1.1.1 Two test methods are
described: Method A—Color Indicator Titration (Sections
1.2 Because compounds of sulfur,
phosphorus, the halogens, and certain other elements that are
sometimes added to petroleum products also consume alkali and
acids, the results obtained indicate the effect of these extraneous
materials in addition to the saponifiable material present. Results
on products containing such materials, on used
internal-combustion-engine crankcase oils, and on used turbine oils
must be interpreted with caution.
1.3 The values stated in SI units
are to be regarded as the standard.
1.4 This standard does not
purport to address all of the safety concerns, if any, 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.
Standard Practice for Quality Management
Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing
Laboratories (Includes all amendments and changes 12/7/2023). Standard Guide for Sampling, Test
Methods, and Specifications for Electrical Insulating Liquids Standard Practice for Manual Sampling of
Petroleum and Petroleum Products Standard Practice for Applying
Statistical Quality Assurance and Control Charting Techniques to
Evaluate Analytical Measurement System Performance (Includes all
amendments and changes 12/12/2023). Standard Specification for Reagent
Water Standard Practice for Automatic Sampling
of Petroleum and Petroleum Products (Includes all amendments and
changes 3/24/2023). Standard Test Methods for Analysis of
Lubricating Grease |
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