EPA Method B in the EPA methods list database. View all EPA methods. This article compares results from samples prepared and analyzed according to EPA Method B on a sector instrument with those from a. EPA Method B. Summit Environmental Technologies prides itself in its expansive testing capabilities in a variety of different fields. To find out if Summit.
|Published (Last):||27 October 2014|
|PDF File Size:||8.38 Mb|
|ePub File Size:||18.72 Mb|
|Price:||Free* [*Free Regsitration Required]|
Apply vacuum to the flask, and pour the entire contents of the sample bottle through a glass-fiber filter Section 6.
The sample is mixed with sodium sulfate, allowed to dry for 12 – 24 hours, and extracted for hours using methylene chloride: Equivalent performance may be achieved using apparatus and materials other than those specified here. If foaming occurs, reduce the reflux rate until foaming subsides.
EPA Method 1613B
Fire-polish both ends methodd flare both’ ends if desired. Any alternative technique acceptable so long as the requirements in Section 9 are met. If solvent loss has occurred, the solution should be replaced. Persons who convey the bags and launder the clothing should be advised of the hazard and trained in proper handling.
Extract for 18 to 24 hours.
All sample processing steps that are to be used for processing samples, including preparation Section 11extraction Section 12and cleanup Section 13shall be included in this test.
PAR standard Section 7.
The volume injected must be identical to the volume used for calibration Section Softer particles can be reduced by grinding in a Wiley mill or meat grinder, by homogenization, or in a blender. Caps shall 6113b lined with fluoropolymer. Additional cleanup of the extract may be required to remove the interferences. Reflux the sample for a total of 16 to 24 hours. Do not disturb the silica layer throughout the extraction process.
If interferences preclude identification, a new aliquot of sample must be extracted, further 16113b up, and analyzed. The elution pattern will be corn oil, bis 2-ethyl hexyl phthalate, pentachlorophenol, perylene, and sulfur. Tap the column to settle the adsorbents. The filtrate and the materials trapped on the filter j are extracted separately, and jethod extracts are combined for cleanup and analysis. Reduce the volume to approximately yL.
Apply 2 mL of hexane to complete the transfer.
Therefore, the performance of the method after such modifications must be verified by the procedure in Section 9.
When whole fish analysis is necessary, the entire fish is homogenized. Common requests for analysis of fish tissue include whole fish-skin on, whole fish-skin removed, edible fish fillets filleted in the field or by the laboratoryspecific organs, and other portions.
Plastic bag liners should be used in waste cans. This will assist rpa laboratory in tracking possible sources of contamination for individual samples, identifying glassware associated with highly contaminated samples that may require mdthod cleaning, and determining when glassware should be discarded.
Proceed with micro-concentration and solvent exchange Section Each laboratory must develop a strict safety program for handling these compounds. Isomer-Specific Separation of 2,3,7,8? If carbon particles are present in the eluate, filter through glass-fiber filter paper. Repeat the acid washing until no color is visible in the aqueous layer, to a maximum of four washings.
Be sure not to open the valve so quickly that the sample is blown out of the flask. Stir for 2 to 3 hours. If channeling is present, discard the column and prepare another.
After 1613h, the extract is concentrated to near dryness.
Summit Environmental Testing | EPA METHOD B
Determine the weight of the sample by difference. Repeat this rinse at least twice.
For aqueous samples containing greater than one percent! Va – The extract volume in mL. Place the K-D apparatus in a hot water bath so that the entire lower rounded surface of the flask is bathed with steam.
Save the bottle for further use.