This category includes methods that were categorized as conditional test methods before our method categories were revised. Because some of these methods have been cited in state rules and permits under their Conditional Test Method (CTM) designation, we have created a category for them and called it "Historic Conditional Methods". This category is closed and no new methods will be added to it.
These CTMs have been evaluated by the Agency and may be applicable to one or more categories of stationary sources. The EPA confidence in a method included in this category is based upon review of various technical information including, but not limited to, field and laboratory validation studies; EPA understanding of the most significant quality assurance (QA) and quality control (QC) issues; and EPA confirmation that the method addresses these QA/QC issues sufficiently to identify when the method may not be acquiring representative data. The method's QA/QC procedures are required as a condition of applicability.
CTMs may be used by State and local programs in conjunction with Federally enforceable programs (e.g., Title V permits, State Implementation Plans (SIP)) provided they are subject to an EPA Regional SIP approval process or permit veto opportunity and public notice and opportunity for comment. They are available for application without EPA oversight for other non-EPA program uses including state permitting programs and scientific and engineering applications.
These methods must be approved as alternatives before a source may use them to meet Federal requirements under 40 CFR Part 60, 61, and 63. The EPA encourages the submission of additional field and laboratory data to further support a method.
The EPA staff may not necessarily be the technical experts on these methods. These methods are potentially subject to change based on the review of additional validation studies or on public comment as a part of adoption as a method proposed or promulgated in the Federal Register.
The documents below are PDFs, except where indicated. You will need Adobe Reader to view the files on this page. See EPA’s About PDF page to learn more.
| CTM# |
Title |
Date |
|---|
| CTM-001 |
Butadiene Method (8 pp, 38 K) |
February 1989 |
| CTM-002 |
Particulate (PM Screening) Method (10 pp, 60 K)
Particulate (PM Screening) Figure (1 pg, 12 K) |
May 1989
|
| CTM-003 |
Particulate (PM Modified High Volume) Method (15 pp, 142 K) |
September 1989 |
| CTM-008 |
Conditional Test Method for Acrylonitrile (10 pp, 881 K) |
|
| CTM-010 |
Perchloroethylene in Wet Waste (Filters and Still Bottoms) (7 pp, 37 K) |
March 1991 |
| CTM-011 |
Halogenated Organics Method (13 pp, 44 K) |
May 1991 |
| CTM-013 |
Determination of Sulfuric Acid Vapor or Mist and Sulfur Dioxide Emissions from Kraft Recovery Furnaces (87 pp, 5 MB) |
December 1996 |
| CTM-013A |
Determination of Sulfuric Acid and Sulfur Dioxide Emissions from Combination Fuel Boilers and Recovery Furnaces (9 pp, 327 K) |
December 1996 |
| CTM-013B |
Determination of Sulfuric Acid and Sulfur Dioxide Emissions from Combination Boilers, Recovery Furnaces, and Thermal Oxidizers - Isokinetic Method (8 pp, 115 K) |
December 1996 |
| CTM-014 |
Benzene Matter Emissions (14 pp, 50 K) |
December 1992 |
| CTM-019 |
Gas Velocity and Volumetric Flowrate under Cyclonic Flow Conditions (10 pp, 64 K) |
June 1986 |
| CTM-022 |
Nitric Oxide, Nitrogen Dioxide, & NOx emissions by Electrochemical Analyzer |
May 1995 |
| CTM-025 |
Microbial Survivability Test for Medical Waste Incinerator Ash (14 pp, 46 K) |
August 1990 |
| CTM-026 |
Microbial Survivability Test for Medical Waste Incinerator Emissions (18 pp, 303 K) |
|
| CTM-027 |
|
August 1997 |
| CTM-028 |
Direct Interface GC/MS Performance-Based Method (16 pp, 63 K) |
October 1997 |
| CTM-029 |
Asbestos in Serpentine Aggregate - CARB Method 435 (24 pp, 123 K) |
June 1991 |
| CTM-030 |
Note: Please note that there is an ASTM Method (ASTM D6522-00) that is similar to this conditional test method.
We strongly encourage you to consider its use in accordance with the applicability as specified in the method.
|
October 1997 |
| CTM-031 |
Screening Method for Methylene Diphenyl Diisocyanate (MDI) (8 pp, 29 K) |
|
| CTM-032 |
Draft Method for Sampling and Analysis for High Levels of Phenol and Cresol Emissions from Stationary Sources (52 pp, 503 K) |
|
| CTM-033 |
Note: CTM-033 has been revised and is now OTM-29 (33 pp, 377 K). The method was updated to address issues related to maintaining a pH of 12 and higher in the NaOH impingers during the test.
|
|
| CTM-034 |
Draft Method for the Determination of O2, CO, & (NO and NO2) for Periodic Monitoring (23 pp, 94 K) |
September 1999 |
| CTM-035 |
Determination of Low Concentration Non-Methane Non-Ethane Organic Compound Emissions From Clean Fueled Combustion Sources (57 pp, 653 K) (SCAQMD Method 25.3) |
March 2000 |
| CTM-036 |
Method for Sampling Isocyanate Stack Emissions (Revised 03/05) (9 pp, 1 MB) |
March 2005 |
| CTM-036A |
Method for Analyzing Isocyanate Stack Emissions (Revised 02/04) (11 pp, 260 K) |
February 2004 |
| CTM-037 |
|
|
| CTM-038 |
Measurement of Ammonia Emissions From Highway, Nonroad, and Stationary Use Diesel Engines by Extractive Fourier Transform Infrared (FTIR) Spectroscopy (113 pp, 145 K) |
|
| CTM-039 |
The file size of this movie is large (50 M) and requires the Windows Media viewer.
|
July 2004 |
| CTM-041 |
Determination of Volumetric Gas Flow in Rectangular Duct or Stacks Taking Into Account Velocity Decay Near the Stack or Duct Walls (17 pp, 121 K) |
January 2003
|
| CTM-042 |
Use of Flame Ionization Detector-Methane Cutter Analysis Systems for VOC Compliance Testing of Bakeries (Revised 08/04) (11 pp, 247 K) |
August 2004 |
| CPS-001 |
Note: Please note that there is now an Annex to an ASTM Method (Annex 1 to ASTM D6216-07) that updates this method and more completely addresses low opacity measurement.
We strongly recommend that you consider its use in lieu of CPS-001.
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