UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON , D

. C

. 20460

Mike Sattan President & CE O Eppe nd o r f 175 Freshwater B oulevard E nfield , Connectic u t 06082-4444 

# AUG 0 3 2015 O FFI CE OF AIR AND RADIATION

Re: Incomplete SNAP Submiss ion for Ethane (R-1 70) and Propane (R

- 290) in very low temperature refrigeration (two-s tage cascade system).

Dear Mr. Sattan :
Thank you for Eppendorfs submission to the U.S. Environmental Protection Agency (E PA). E PA established the S i g nifican t New Alternatives Po lic y (SNAP) program to implement section 6 12 ofthe C lean Air Act. Your app lication s ubmitted o n May 6 , 2015 has been revi ewed for completeness as part of the initial S AP review. We have found the submissio n to be incomplete. The following inf ormat ion is necessary in o rd er to allow the Agency to review of Eppe ndorfs s ubmi ss io n for ethane (R-170) and propane (R-290) in very l ow temp e rature refrigeration. I. 

### Applications and End-Uses. In Part I , Section B , Number 4, Part (a) , the s ubmitter indicates that the propo sed s ubstitutes are inte nded for use in n ew " V ery Low Temperature Refrigeration" equipment. a. In w hat type(s) of locations will the equipment be used (e.g., hospitaL laborato ry)? b. Pl ease provide the typical and minimum room s izes ( in m 3 ) w here th e equipm ent will be used. c. Plea se also provide the anticipated room air excha nge rate (ACH) for th e location s where th e equipment wi ll be u se d

. 2. 

### Charge Size. In Part I , Section B. Numbe r 4. Part (b) , the s ubmitter indicates that the proposed very low temp erature refrigeration equipment would have a charge size of less than 150 grams for each r ef

rigerant circuit ( i.e. , l ess than 1 50 grams of R- 290 in the first circuit and less th an 150 grams R-17 0 of in the second c ircuit). a. Ple ase provide the typical charge s ize est imates for the various applications (e.g

.. medical freezer equ ipment , laboratory f reezer equip ment) in which th e proposed s ubstitute s will be u se d u s in g the tabl e below.

I n terne t Add ress (U R Ll · http // www epa gov Recycled/ Recyclable • Pronted w th Veget ab'e 011 B a sed In ks on 100' · P ostconsumer P rocess Chlorone Free Recycled P aper

### E nd- Use Application Potential Typical C harge Maximum Charge S ub st itute Size (g) Size (g) R-170 !50 R-290 1 50 Very Low R-17 0 150 Temperature R-290 15 0 RefTigeration R- 1 70 ! 50 R-290 150 3. 

### Flammabilit y. In Part II , Section A , N umb e r 28 , the s ubmitte r in dicates th at the propos e d s ub stitutes a re flammable. For flammable subst itutes, various te s t results and analyses must be s ubmitted: a. Plea se submit documentation of testing safe ty result s conducted by independe nt laboratories. b. Pl ease include both evapo rato r and condenser temperature and pr ess ure conditions. c . P lease provide a flammab ili ty ri sk assessment 1. Please in clude a full characterizat i o n of typical a nd worst-case exposures includin g the size of th e s pac e in wh ic h the freeze r is being u se d , the typ ic al and maximum charge s ize consistent w ith the table above, and a comparison of maximum exposure concentrations to the lower flammability limit s of the prop osed substitutes. d. Pl ease provide a faul t-tree ana l ys is, and please specify probabilities assoc iated with each eve nt in the analysis. See App e ndix B of th e in structi o n s for the SNAP Pro g ram Information Notice for more information. e. Please detail any abatement tec hniques th at are used to m inim ize the flammability risks associated with use of the proposed s ubstitutes. 4. 

### Occupational Exposure. In Part II , Section A, N umb e r 2 8 , the s ubmission s tates [ 

### ] a . What are typ ica l va lue s for ve ntilati o n in a ir changes p e r hour at th e c hargin g locati on? b. What control technologies (e.g

.. carbon absorpti on , co ll ection systems , ai r filtration, enc losed env ironment) are used to p revent releases of the proposed s ubstitutes to the workplace e nvi r onment ? 5. 

### Marke t Pene tration. In Part II , Sect io n D , Numb e r 2, the s ubmi ss i on s tates th at th e substitutes are " currentl y avail able. " Pl ease p rov ide the follow in g informat ion on production of equipment contai nin g the proposed subs titute. a. Plea se provide the year the s ubmitter intends to begin se lling the equ ipment containin g the s ubst itute
. In P a rt III, Section C, th e submiss i on states [ 

### ]1. If not , please provide the projected amount of sales, in units of equipment containing the propo sed substitute , at m axi mum market saturation. c. Please provide the estimated amoun t of refri gerant , in the U.S. in pounds per year , which w ill be in stalled at maximum market saturation. Please also include , the projected import/export amount of refrigerant e ither into, or out of the U .S , in pounds per yea r. d. Please also provide the anticipated market share (pe r centage) of e quipme nt containing the proposed substitutes at market sa turation

. 6. 

### Servicing. How does the risk durin g serv icing change if a technician were to vent the refrigerant to the atmosphere, as EPA allows for certain uses of h ydroc arbon refrigerant ? 7. 

### Training. Please provide information on training materials related to manufacture, in s tallation and servicing, and disposal of the propos e d eq uipment. a. How do these guidelines differ from training for non-flammab le ref rigerants ? 8

. 

### Recove 1 y. Please indicate the anticipated percent of refri gerant charge re maining in the equip m e nt after recovery ( i.e. , recovery effic ienc y), assuming recov ery processes are not l 00 percent efficient. 9. 

### CBI C laims. If you wish to claim any of the information sub mitted in re sponse to the requests above as confidential busines s information (CBl) under the Clean Air Act and it s Amendments, p lease also p rovide two cop ies of your re s ponse , one contain ing CBI using brackets and one with CB I removed.

Here is a s ummary of informat ion concerning your submission: Substitute name: Ethane (R- 170) and Propan e ( R-290) Sector: Refrigeration and Ai r Conditioning End-uses: very low temperature refrigeration New or Ret rofit usage: New Equipment Only Date rece i ved: May 6 , 2015 Status of s ubmi ss ion: IncompleteResponse s to these question s i s necessary for u s to begin our rev iew. The in formation can be s ubmitte d via e lec tronic mail o r hard copy. If you have questions about your s ubmi ssio n , ple ase co nt act me at (202) 343-9624 or \Vozniak.gerald w epa.Q.O\'

.



### Cc: Dr. Wilhelm Pluester B oard Member , CT O Barkhau se nweg 1 , 22339 Hamburg , Germany Sincere ly ,

Ge ra ld Wozniak A lternat ives and Emiss ions Reduction Branch S tratos pheric Protection Di vision