**MEMORANDUM UNITED**  **STATES ENVIRONMENTAL**  **PROTECTION AGENCY**  **RESEARCH TRIANGLE**  **PARK, NC**  **27711**


### MAR **3 1 2011** 

**OFFICE OF**  **AIR QUALITY**  **PLANNING AND**  **STANDARDS**

**SUBJECT: Voluntary**  **Consensus Standard**  **Results for**  **National Emission**  **Standards for** 

**Hazardous Air**  **Pollutants for**  **Polyvinyl Chloride and Copolymers Production**  **(40 CFR**  **63, Subpart**  **HHHHHHH (Addendum**  **to original**  **memo dated**  **12/20/2010) FROM:**  **Connie sue**  **B. Oldham,**  **Group Leader** 

# � **Q{�**

**Measurement Technology**  **Group (E143-02)**  **TO: Penny**  **Lassiter, Group**  **Leader**

**Refining and**  **Chemicals Group**  **(E143-01) At** **your request,**  **the Measurement**  **Technology Group**  **(MTG), of** **the Office**  **of Air**  **Quality Planning**  **and Standards**  **(OAQPS), conducted**  **searches and reviews to**  **address the**  **National Technology**  **Transfer and**  **Advancement Act**  **(NTTAA) requirements**  **on the**  **use of**  **voluntary consensus**  **standards (V** **CS). The** **NTTAA directs**  **EPA to** **use VCS**  **in regulatory**  **and procur** **ement activities**  **unless doing**  **so would**  **be inconsistent**  **with applicable**  **law or**  **otherwise impra** **cticable. This**  **memorandum documents the**  **results of** **the MTG**  **searches and**  **reviews to**  **determine ifVCS are**  **available and**  **practical for use**  **in lieu**  **of stationary**  **source methods**  **cited in the**  **National Emission**  **Standards for**  **Hazardous Air**  **Pollutants for**  **Polyvinyl Chloride**  **and Copolymers**  **Production (40**  **CFR 63,**  **Subpart HHHHHHH).** 

**In 1998,**  **OAQPS began**  **implementing the**  **requirements of** **the NTTAA**  **by conducting**  **searches to**  **identify VCS.**  **Searches continue**  **to be**  **performed to**  **meet the**  **requirements of** **the NTT AA.**  **While we**  **have made**  **a reasonable**  **effort to**  **identify and evaluate**  **potentially practical**  **VCS, our**  **findings do**  **not necessarily**  **represent all**  **potential alternative**  **standards which**  **may exist.**  **The MTG**  **participates in** **the American**  **Society for**  **Testing and**  **Materials (ASTM),**  **which is**  **one of** **the most**  **active VCS**  **organizations on**  **emissions testing,**  **and has**  **been invited to**  **part icipate**  **in the**  **USA Technical**  **Advisory Group**  **for International**  **Organization for**  **Standar dization**  **(ISO) relating**  **to emissions**  **monitoring. We**  **expect these**  **additional efforts**  **will help us**  **to support**  **a periodic**  **review of** **all EPA reference methods and**  **performance standards**  **for possible incorporation** **by reference**  **(IBR) of** **VCS in**  **lieu of** **or as**  **alternatives to** **EPA procedures.**  **We anticipate**  **that these**  **activities will**  **provide an**  **opportunity for**  **further review,**  **consideration and**  **possible IBR**  **ofVCS overlooked**  **in the**  **National Standards**  **Service Network**  **(NSSN) searches**  **or finalized**  **after Federal**  **agency review**  **in the**  **EPA rulemaking**  **process.**

**Internet Address (URL)**  **• http://** **www .epa.gov**  **RecycledIRecyclable •**  **Printed wnh**  **Vegetable Oil**  **Based Inks**  **on Recycled**  **Paper (Minimum**  **25% Postconsumer)** **2**

**We conducted**  **searches for**  **the National**  **Emission Standards**  **for Hazardous**  **Air Pollutants**  **for Polyvinyl**  **Chloride and**  **Copolymers Production (40**  **CFR 63,**  **Subpart HHHHHHH)**  **through the**  **Enhanced NSSN**  **Database managed**  **by the**  **American National**  **Standards Institute**  **(ANSI). We**  **also contacted**  **VCS organizations,**  **and accessed**  **and searched**  **their databases.**  **This rulemaking involves technical**  **standards. EPA**  **has decided**  **to use**  **ANSII ASME**  **PTC 19.** **10-1981, "Flue**  **and Exhaust**  **Gas Analyses**  **as an acceptable**  **alternative to**  **EPA Method**  **3B. This standard** **is available**  **from the**  **American Society**  **of Mechanical**  **Engineers (ASME),**  **Three Park**  **Avenue, New**  **York, NY**  **10016-5990 and**  **ASTM D6420-99**  **(2004) as**  **an acceptable alternative**  **to EPA**  **Method 18. .** 
**No applicable**  **voluntary consensus standards**  **were identified**  **for EPA**  **Methods 305,**  **8021B, and**  **SW-846 Method**  **003 l.**  **During the**  **search, if** **the title**  **or abstract**  **(if provided)**  **of the**  **VCS described**  **technical sampling**  **and analytical** **procedures that**  **are similar**  **to EPA's**  **reference method,**  **the MTG**  **ordered a**  **copy of** **the standard**  **and reviewed**  **it as**  **a potential equivalent**  **method. All**  **potential standards were**  **reviewed to**  **determine the**  **practicality of** **the VCS**  **for this**  **rule. This**  **review requires**  **significant method**  **validation data which**  **meets the**  **requirements of** **EP A**  **Method 301**  **for accepting alternative** **methods or**  **scientific, engineering**  **and policy**  **equivalence to** **procedures in EP** **A reference**  **methods. The**  **MTG may**  **reconsider determinations of** **impractica lity**  **when additional**  **information is**  **available for**  **particular VCS.**  **The search identified 2**  **other VCS**  **that were**  **potentially applicable** **for this**  **rule in**  **lieu of**  **EPA reference** **methods. After**  **reviewing the**  **available standards,**  **EPA determined that**  **2 candidate** **VCS (EN**  **1911-1,2,3 (1998), ASTM D6735-01)**  **identified for**  **measuring emissions of**  **pollutants or their**  **surrogates subject**  **to emission**  **standards in** **the rule** **would not**  **be practical due**  **to lack**  **of equivalency, documentation,**  **validation data**  **and other**  **important technical**  **and policy**  **considerations. These**  **2 methods**  **are listed**  **in Attachment**  **1, along**  **with the**  **EPA review**  **comments. I** **hope our**  **research into this**  **matter has**  **been useful and timely**  **to your Group's**  **efforts in**  **this rulemaking.**  **Please contact**  **me at**  **(919) 541-7774**  **with any**  **further questions**  **in this**  **matter. Attachments** 

**cc: Jodi**  **Howard, EPAlSPPD**  **(E143-01) Rima**  **Howell, EPA/AQAD**  **(E143-02) Michael Toney, EPAlAQAD**  **(E143-02) Attachment**  **1. List**  **of Voluntary**  **Consensus Standards**  **Not Applicable**  **for the**  **National Emission**  **Standards for**  **Hazardous Air**  **Pollutants for Polyvinyl**  **Chloride and**  **Copolymers Production**  **(40 CFR**  **63, Subpart**  **HHHHHHH).**
**SIMILAR EPA**  **STANDARD VOLUNTARY**  **CONSENSUS STANDARD EPA**  **I S**  **COMMENTS ON**  **VOLUNTARY REFERENCE**  **CONSENSUS STANDARD**  **METHOD EP** **A Methods**  **26A EN**  **1911-1,2,3 (1998)** 

**- Stationary**  **Source Part**  **3 of** **this standard**  **cannot be**  **considered equivalent**  **I Emissions-Manual Method**  **of Determination**  **of to**  **EPA Method**  **26 or**  **26A. The**  **sample absorbing**  **HCI-Part 1:**  **Sampling of** **Gases Ratified**  **European solution**  **(water) would** **be expected**  **to capture**  **both Text-Part**  **2: Gaseous**  **Compounds Absorption**  **HCI and**  **chlorine gas,**  **if present,**  **without the**  **ability to**  **Ratified European** **Text-Part 3:**  **Adsorption distinguish**  **between the** **two. The EPA**  **Methods 26**  **Solutions Analysis**  **and Calculation**  **Ratified and**  **26A use**  **an acidified**  **absorbing solution** **to first**  **European Text**  **separate HCI**  **and chlorine**  **gas so**  **that they**  **can be**  **selectively absorbed, analyzed, and**  **reported separately.**  **In addition**  **in EN**  **1911-1,2,3 (1998),**  **the absorption**  **efficiency for**  **chlorine gas**  **would be**  **expected to**  **vary as**  **the pH**  **of the**  **water chan**  **g ed** **during sampling.**  **EPA Method**  **26A ASTM** **D6735-01**

**- Standard**  **Test Method**  **for This**  **impinger-based standard** **to measure**  **HCI is an**  **Measurement of** **Gaseous Chlorides**  **acceptable alternative**  **to EPA**  **Methods 26,**  **26A, and**  **321 from**  **mineral calcining**  **exhaust sources.** 

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