Document Jro9qgO9284ZJ9D7me2NeOwgK

Ethanolamines/Glycol Ethers Tier 3 Procedure Section Number Issue Number Original Date Revision Date Title References :215 :1.4 : 12-23-91 Author: Terry Pellowski :02-08-96 :Addition Of NaBH4 Powder To Tea Tanks :Glossary For Equipment Identification :Charging Borohydride (NaBH4)Pots Area 2) 215 Addition Of NaBH4 Powder To TEA Tanks 1.0 Objective: 1.1 To avoid spillage to the environment and protect personnel while adding NaBH4 powder to tea tanks. 2.0 Responsibility: 2.1 It is the responsibility of the operations supervisor and the senior operations specialist to ensure that this procedure is fully complied with. 2.2 It is the responsibility of the senior operations specialist and the operations specialist to ensure that this procedure is complied with. 3.0 Safety Notation: 3.1 Safety equipment needed for this job is monogoggles, rubber gloves, dust mask, long sleeve shirt and or slicker top. 4.0 Special Notation: 4.1 Never charge a tea tank while on recirculation. It's possible that a mixture of product and NaBH4 powder may exit the PVRV or strapping hatch while charging. Have about a 20% level in the tank before charging. 4.2 The maximum amount of NaBH4 in TEA is 200 PPM. If the TEA has been filtered through the NaBH4 pots at DV-272A/B, the TEA will contain approximately 64 PPM NaBH4. No more than 8 LB of NaBH4 should be added to every 100,000 LB of TEA that has been previously filtered through the NaBH4 pots. 5.0 Procedure: 5.1 Red tag the nitrogen and recirculation valves closed to the tank. 5.2 Bleed pressure off the tank through the PVRV or strapping hatch. Date Printed April 18, 1998 Paper Copies Of This Document Are Uncontrolled & Not Subject To Update. The Controlled Document Resides In File: Addnapd.Doc Page 1 Of 2 f 5.3 Remove PVRV or open strapping hatch and pour NaBH4 powder into tank. 5.4 Replace PVRV or close strapping hatch. 5.5 Remove red tags and clear master. 5.6 Open nitrogen block valve to the tank. 5.7 Recirculate charged tank for about one hour and then sample. 6.0 Revisions: Revision No. 1 Revision No. 2 Revision No. 3 Revision No. 4 06-10-93 12-20-94 12-29-95 02-08-96 Yearly Review Yearly Review Yearly Review Added 4.2 Date Printed April 18, 1998 Paper Copies Of This Document Are Uncontrolled & Not Subject To Update. The Controlled Document Resides In File: Addnapd.Doc Page 2 Of 2 'ENTI4L