Installation of CORROSION COUPON at PDH Plant

Corrosion coupon

installed in return line

of E-5006 in PDH plant

E-5

006

CORROSION COUPON INSTALLED AT E-5006 ON 9-8-2009 & REMOVED ON 5-11-09

FRONT SIDE VIEW OF COUPON AFTER 2 MONTH (APPORX) OF SERVICE

RECORD SLIP OF NALCO COUPON

PART NUMBER= P5035A

SERIAL NUMBER= BA2354

ALLOY of CORROSION

COUPON = MILD STEEL

WEIGHT= 11.4621 grams

BACK SIDE VIEW OF COUPON AFTER 2 MONTH (APPORX) OF SERVICE

NEW CORROSION COUPON INSTALLED AT RETURN LINE

OF E-5006 (DATED 5-11-2009)

FRONT SIDE OF NEW COUPON

BACK SIDE OF NEW COUPON

PART NUMBER= P5048A

SERIAL NUMBER= P8733

ALLOY of CORROSION

COUPON = MILD STEEL

SCALING

WEIGHT= 10.1522 grams

VIEW OF NEW CORROSION COUPON INSTALLATION IN THE RETURN LINE

OF E-5006