### Cover Letter

April 28, 2011 Document Control Officer Office of Pollution Prevention and Toxic Substances, 7407 United Stated Environmental Protection Agency 1200 Pennsylvania Avenue, NW Washington, DC 20460 Mr. Kenneth Moss Chemical Control Division Office of Pollution Prevention and Toxic Substances United Stated Environmental Protection Agency 1200 Pennsylvania Avenue, NW Washington, DC 20460 Re: Significant New Use Notification (SNUN) Alumino Silico Phosphates (ASP) Johnson Matthey Corporation CAS#: 201167-69-3 Document Control #: 52-110000002 Gentlemen: As a follow-up to conversations between Mr. Moss and myself please find attached a Significant New Use Notification (SNUN) for Alumino Silico Phosphate (ASP) CAS # 201167-69-3. The attached SNUN contains Confidential Business Information (CBI) as noted and both CBI and non-CBI versions are included. The original Pre Manufacturing Notice (PMN) for this material was filed by Universal Oil Products (UOP) in February 1998 (P-1274 and 1275) which was subsequently amended in 1999, 2000 and 2002 with additional information. On May 19, 1999, UOP and USEPA agreed to a TSCA 5(e) Consent Order that was modified in a letter from USEPA dated May 4, 2001. The purpose of this SNUN is to request modification from two of the UOP TSCA 5(e) Consent Order conditions as detailed below: 1.	Relief from the UOP volume restriction 2.	Modification of the respiratory protection requirements*. Volume Restriction Page 1 SANITIZED SUBMISSIONThe UOP Consent Order contained a volume restriction of {XXX}. As detailed in the SNUN, Johnson Matthey is

requesting that the limit be raised to {XXX} The material will be manufactured outside the United States and imported by Johnson Matthey for use in the production of catalytic converter products. Respiratory Requirements The UOP Consent Order contained respiratory requirements that were codified in 40 CFR §721.633 on December 26, 2000 (65FR81386) and were subsequently modified in a letter from USEPA to UOP on May 4, 2001 that allowed the “...use of respirators with a NIOSH assigned protection factor (APF) of 50 or higher.” Johnson Matthey is requesting that USEPA approve alternate respiratory protection requirements for its two manufacturing facilities {XXX} where the ASP will be used. Johnson Matthey maintains a fully compliant OSHA respiratory protection program at its facilities that include the use of OHSA approved full-face respirators with P-100 filters that will meet the minimum APF of 50. Should you have any questions on the above or SNUN please do not hesitate to contact me at 610-341-8299 or lackese@jmusa.com. Thank you for your attention to this matter. Very truly yours, Original signed by S. Lackey Susan Lackey Environmental, Health and Safety Manager Johnson Matthey Emission Control Technologies * Codified in a SNUR 40 CFR 721.633

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Page 18 SANITIZED SUBMISSIONPage 19 SANITIZED SUBMISSIONAll handling is performed inside enclosed buildings and structures.

The dust collectors are Title V permitted, maintained and tested.

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### ATTACHMENT HEADER SHEET Attachment Number 001 Attachment Name IES Report 

### Associated PMN Section Number

Pt.I, Sec.B, 1c. Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 002 Attachment Name Chemical Structure 

### Associated PMN Section Number

Pt.I, Sec.B, 1e. Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 003 Attachment Name Process Description 

### Associated PMN Section Number

Pt.2, Sec.A, 1d. Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 004 Attachment Name MSDS 

### Associated PMN Section Number

N/A Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 005 Attachment Name SAPO 34 Industrial Hygiene Monitoring 

### Associated PMN Section Number

N/A Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 006 Attachment Name Bacterial Reverse Mutation Test 

### Associated PMN Section Number

N/A Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 007 Attachment Name Skin Sensitization to the Guinea Pig (Magnusson & Kligman Method)



### Associated PMN Section Number

N/A Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 008 Attachment Name 90-Day Inhalation Study of a Non-Fibrous Synthetic Zeolyte Analog in the Rat



### Associated PMN Section Number

N/A Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 009 Attachment Name Acute Toxicity and Primary Irritancy Studies 

### Associated PMN Section Number

N/A Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 010 Attachment Name 13 Week Inhalation Toxicity Study in the Rat Followed by a 13 Week Treatment Free Period



### Associated PMN Section Number

N/A Does not contain CBI 

### Report Number JMAS110614967133267

### ATTACHMENT HEADER SHEET Attachment Number 011 Attachment Name Question 4a Sanitized 

### Associated PMN Section Number

Pt.I, Sec.B, 1e(1). Does not contain CBI 

### Report Number JMAS110614967133267