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ASTM D7876 Standard Practice for Practice for Sample Decomposition Using Microwa
ASTM D7876 Standard Practice for Practice for Sample Decomposition Using Microwave Heating (With or Without Prior Ashing) for Atomic Spectroscopic Elemental Determination in Petroleum Products and Lubricants4. Summary of Practice4.1 Aweighed portion of the sample is subjected to alternate means of sample ...
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ASTM D7876 Standard Practice for Practice for Sample Decomposition Using Microwa
ASTM D7876 Standard Practice for Practice for Sample Decomposition Using Microwave Heating (With or Without Prior Ashing) for Atomic Spectroscopic Elemental Determination in Petroleum Products and Lubricants1. Scope1.1 This practice covers the procedure for use of microwave radiation for sample decomposition ...
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ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons
ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons for Mercury Analysis9. Contamination and Interference9.1 Contamination is a significant issue whenever samples contain the target analytes at the parts-per-billion or low parts-per-million range. For mercury in hydrocarbon ...
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ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons
ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons for Mercury Analysis7. Sampling Procedure7.1 Employ the normal hydrocarbon sampling procedures necessary to obtain discrete and homogeneous samples. Either grab samples or composites from auto-samplers are allowed. Grab ...
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ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons
ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons for Mercury Analysis6. Apparatus6.1 Clear or Amber Borosilicate Glass, 40-mL or less in volume; pre-cleaned by acid-washing; with PTFE (polytetrafluoroethylene)-lined septum caps. These are commonly referred to as VOA vials ...
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ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons
ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons for Mercury Analysis4. Summary of Practice4.1 This practice describes the sampling, storage, transport, and handling of hydrocarbon samples used for determining mercury, and the precautions that need to be taken to prevent ...
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ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons
ASTM D7482 Standard Practice for Sampling, Storage, and Handling of Hydrocarbons for Mercury Analysis1. Scope1.1 This practice covers the types of and preparation of containers found most suitable for the handling of hydrocarbon samples for the determination of total mercury.1.2 This practice was developed ...
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ASTM D7623 Standard Test Method for Total Mercury in Crude Oil Using Combustion-
ASTM D7623 Standard Test Method for Total Mercury in Crude Oil Using Combustion-Gold Amalgamation and Cold Vapor Atomic Absorption Method14. Report14.1 Report results from the mercury determination on ng/g (or mass-ppb) basis.15. Precision and Bias15.1 Precision:15.1.1 Repeatability Limit (r) - The value ...
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ASTM D7623 Standard Test Method for Total Mercury in Crude Oil Using Combustion-
ASTM D7623 Standard Test Method for Total Mercury in Crude Oil Using Combustion-Gold Amalgamation and Cold Vapor Atomic Absorption Method12. Procedure12.1 Place the crude oil sample containers in an ultrasonic homogenizer for approximately 15 min just prior to analysis. Keep the water in the bath at ...
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ASTM D7623 Standard Test Method for Total Mercury in Crude Oil Using Combustion-
ASTM D7623 Standard Test Method for Total Mercury in Crude Oil Using Combustion-Gold Amalgamation and Cold Vapor Atomic Absorption Method9. Preparation of Mercury Standards9.1 L-cysteine Solution, 0.001 m % - Weigh approximately 0.010 g of L-cysteine to the nearest milligram onto a glassine weighing ...
