![]() ![]() Method 301 includes minimum procedures to determine and document systematic error (bias) and random error (precision) of measured concentrations from exhaust gases, wastewater, sludge, and other media. Section 17 of this method describes the requirements for obtaining a waiver.ģ. In some cases, the Administrator may decide to waive the requirement to use Method 301 for a candidate test method to be used to meet a requirement under 40 CFR part 59, 60, 61, 63, or 65 in absence of a validated test method. You must receive the Administrator's written approval to use the candidate test method before you use the candidate test method to meet the applicable federal requirements. ![]() If you want to use a candidate test method to meet requirements in a subpart of 40 CFR part 59, 60, 61, 63, or 65, you must also request approval to use the candidate test method according to the procedures in Section 16 of this method and the appropriate section of the part ( § 59.104, § 59.406, § 60.8(b), § 61.13(h)(1)(ii), § 63.7(f), or § 65.158(a)(2)(iii)). If, under 40 CFR part 63 or 60, you choose to propose a validation method other than Method 301, you must submit and obtain the Administrator's approval for the candidate validation method. Additionally, the validation procedures of Method 301 are appropriate for demonstration of the suitability of alternative test methods under 40 CFR parts 59, 60, and 61. ![]() These validation procedures are applicable under 40 CFR part 63 or 65 when a test method is proposed as an alternative test method to meet an applicable requirement or in the absence of a validated method. Method 301 provides a set of procedures for the owner or operator of an affected source to validate a candidate test method as an alternative to a required test method based on established precision and bias criteria. This makes the spectral match quality amazing- so if you have Agilent hardware, even more reason to go with Adams.Method 301 - Field Validation of Pollutant Measurement Methods From Various Waste MediaĢ.0 What approval must I have to use Method 301?ĩ.0 What are the requirements for precision?ġ0.0 What calculations must I perform for isotopic spiking?ġ1.0 What calculations must I perform for comparison with a validated method?ġ2.0 What calculations must I perform for analyte spiking?ġ3.0 How do I conduct tests at similar sources?ġ4.0 How do I use and conduct ruggedness testing?ġ5.0 How do I determine the Limit of Detection for the candidate test method?ġ6.0 How do I apply for approval to use a candidate test method?ġ8.0 Where can I find additional information? Adams compiled his database, beginning in 1977, on a Hewlett Packard instrument that is the direct predecessor of the Agilent GCMS. Good luck on your project- have you asked Agilent for help? b/c they have great resources and since you are at University, this is opportunity for Agilent to train a cadre of young people who may then go out into the world and buy Agilent stuff! Also Dr. If you want to purchase more than Adams' 2200 spectra you can spend 3 times as much and get a bigger database, by an Italian researcher, through Wiley publisher, that is also on essential oils and comes with retention info. I would not waste precious money on purchasing NIST, though it is lots of good spectra, because NIST contains zero retention information for anything. Double click once more and I have the spectral matches ranked in order of match quality, with retention times. Now I double click on a peak and obtain the spectrum. Adams this year and purchased the digital version of the library (TERPENES.L) and Agilent did a custom install for us. Yes his book is great, is exclusive to essential oils, we bought it, and every spectrum comes with the retention time for that compound. Adams is on ResearchGate and teaches at Baylor U in Texas. Retention is however you want to do it: time or index. Elaborating on Johannes' reasoned response above: He is correct that we must use a "2-dimensional" approach that considers retention information and spectra for each peak. ![]()
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