ASTM D482石油产品灰分测定

ASTM D482-2013 Standard Test Method for Ash from Petroleum Products
ASTM D482-2013 石油产品灰分测定

1. ASTM D482标准适用范围

1.1 This test method covers the determination of ash in the range 0.001–0.180 mass %, from distillate and residual fuels, gas turbine fuels, crude oils, lubricating oils, waxes, and other petroleum products, in which any ash-forming materials present are normally considered to be undesirable impurities or contaminants (Note 1). The test method is limited to petroleum products which are free from added ash-forming additives, including certain phosphorus compounds (Note 2).

Note 1—In certain types of samples, all of the ash-forming metals are not retained quantitatively in the ash. This is particularly true of distillate oils, which require a special ash procedure in order to retain metals quantitatively.
Note 2—This test method is not intended for the analysis of unused lubricating oils containing additives; for such samples use Test Method D874. Neither is it intended for the analysis of lubricating oils containing lead nor for used engine crankcase oils.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. The preferred expression of the property is mass %.

1.3 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.

2.ASTM D482参考标准

ASTM D874 Test Method for Sulfated Ash from Lubricating Oils and Additives
ASTM D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D4928 Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration
ASTM D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance
ASTM D6792 Practice for Quality System in Petroleum Products and Lubricants Testing Laboratories
ICS Number Code 75.080 (Petroleum products in general)
UNSPSC Code 15101500(Petroleum and distillates)

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