Comparison of Fireproofing Specification

Comparison of Fireproofing Specification Items Description TAS-01-M2 Process Unit Fireproofing kg/cm2) is involved, additional protection is required.

API Publication 2218 Second Edition, August 1999 H) Vessels, heat exchangers (including air cooled exchangers) and other equipments containing flammable or combustible liquids over 315 C or their auto-ignition temperature, whichever is less. °

I) Complex process units such as catalytic crackers, hydro-crackers, ethylene units, hydrotreaters, or large crude distilling units typically containing high fire potential equipment. Medium Fire Potential Equipment A) Accumulators, feed drums, and other vessels that may leak as a result of broken instrumentation, ruptured gaskets, or other apparatus. B) Towers that may leak as a result of  broken gauge columns or gasket failure on connected piping and bottom of reboilers C) Air cooled fin fan exchangers that handle flammable and combustible liquids. D) Highly automated and complex  peripheral equipment such as combustion air preheaters. Low Fire Potential Equipment A) Pumps that handle Class IIIB liquids  below their flash points B) Piping within battery limits which has a concentration of valves, fittings, and flanges. C) Heat exchangers that may develop flange leaks.

Page 2 of 9

Chevron 1700 Fireproofing, March 2010

Commentary

Comparison of Fireproofing Specification Items Description TAS-01-M2 Process Unit Fireproofing 2

Fire Scenario Envelope (Fire Potential Area or Fireproofing Limits)

Fire potential areas are bounded by lines drawn at 15.25 m radius from fire potential equipment.

API Publication 2218 Second Edition, August 1999 Fire scenario envelop is one that extends 6 m to 12 m horizontally, and 6 m to 12 m vertically from fire potential equipment. LPG vessels are considered to be the source of a fire scenario exposure, and require fireproofing unless protected by a fixed water spay system. API 2510 recommends fireproofing pipe supports within 15 m of the LPG vessel, or within the spill containment area.

3

Fire Proofing Considerations for Structures within Fire Scenario Envelop

See TAS-01-M2 Attachment A & B

See API 2218 Item 6.1.1 to 6.1.7

Chevron 1700 Fireproofing, March 2010 Fire exposed envelop for structural steel, vessel/column skirts is the area within a radius of 6 m to 12 m horizontally, and 6 m to 12 m vertically from fire potential equipment.

Commentary

The radius from fire  potential equipment mentioned in TAS-01-M2 is more than the mention in API 2218 and Chevron 1700

For instrumentation, electrical power cables and/or air piping/tubing is the area within 15.25m horizontally, and 15.25 m vertically

See Chevron 1700 Fireproofing, item 1721

All mentions in TAS-01M2 are not different from API 2218.

 No any illustrations Fireproofing of the principal members is warranted if the structure is in the fire exposed envelop and failure of these members could cause any of the following: A) Threat of injury to personnel B) Loss or serious damage to valuable or critical supported equipment C) Release of large volumes of flammable material D) Release of toxic material E) Threat to adjacent property and structures of high value F) Serious loss of productive capacity Fireproofing is not warranted in these situations: A) The value of the structure and supported equipment is low when compared to the cost of fireproofing. B) Member failure would not cause failure of the structure or equipment. Thus wind and

Page 3 of 9

All mentions in Chevron 1700 are general term.

Comparison of Fireproofing Specification Items Description TAS-01-M2 Process Unit Fireproofing

API Publication 2218 Second Edition, August 1999

Chevron 1700 Fireproofing, March 2010 earthquake bracing and other secondary members, such as supports for stairs, platforms, and walkways, are not normally fireproofed. C) The structure is far enough removed from the source of a fire to preclude serious damage (e.g., outside the fire hazard envelope). D) The fire would cause failure or serious damage to supported equipment whether or not the structure was fireproofed. E) The structure supports piping that is not carrying flammable liquids. Piping carrying only gases does not normally justify fireproofing of the supports  because the risk of a hydrocarbon pool fire is low.

Pipe Rack Supporting Fin Fan Air Coolers

Figure 9- Pipe Rack Supporting Fin Fan Air Coolers

Page 4 of 9

Commentary

Comparison of Fireproofing Specification Items Description TAS-01-M2 Process Unit Fireproofing

Pipe Rack Supporting Fin Fan Air Coolers

API Publication 2218 Second Edition, August 1999

Chevron 1700 Fireproofing, March 2010

Figure 9- Pipe Rack Supporting Fin Fan Air Coolers

 No any illustrations

Figure 10-Tranfer Line With Hager Support and Catch Beam

Figure 11-Tranfer Line Support

Page 5 of 9

Commentary

Comparison of Fireproofing Specification Items Description TAS-01-M2 Process Unit Fireproofing

API Publication 2218 Second Edition, August 1999

Figure 4-Structure Supporting Fire Potential and Non fire Potential Equipment

Figure 5-Structure Supporting Fire Potential and Non fire Potential Equipment

Page 6 of 9

Chevron 1700 Fireproofing, March 2010

 No any illustrations

Commentary

Comparison of Fireproofing Specification Items Description TAS-01-M2 Process Unit Fireproofing

API Publication 2218 Second Edition, August 1999

Chevron 1700 Fireproofing, March 2010

Commentary

 No any illustrations

Figure 6-Structure Supporting Non fire Potential Equipment 4

Fire Resistance Rating

Fireproofing for structures and supports shall provide at least 1 ½ hours protection at 1100 C under “High Rise” fire conditions as defined in Attachment D (Fireproofing Standards) °

5

Fire Proofing Material

Fireproofing materials shall be in accordance with Underwriters Laboratories, UL-1709 Standard for Rapid Rise Fire Tests of Protection Materials for Structural Steel. For structures, gunned or poured concrete is  preferred for most applications due to its extensive satisfactory use and its resistance to mechanical and fire hose stream damage.

If the expected fire would only be a moderate exposure, with reasonable expectations that manual water cooling of exposed structure could effectively be in  place within an hour or less, a 1 ½ -hour UL 1709 rating might be a reasonable choice. However, if responding emergency response personnel were 1 ½ hours away or exposure was more severe, a more  protective rating (such as 3 hours) might be chosen.

Three-hour fireproofing is for main support members of structures and equipment within the fire-exposed envelope. A three-hour level of  protection is appropriate for typical onshore hydrocarbon processing unit fire duration.

In selection fireproofing material, care should be taken to obtain the desired degree of protection during the system’s service life. In addition to the system’s degree of fire-resistance, a variety of other characteristics should be evaluated to ensure that its material perform property in the environment in which installed. Some of the

The company usually uses concrete material because it is often the most costeffective. Many commercial products are also available. They have specialized uses and are usually more expensive than concrete. Fireproofing materials come in three categories:

Page 7 of 9

At least 1 ½ hours  protection mentioned in TAS-01-M2 is appropriate for SPRC if fire water system could effectively  be in place within an hour or less.

Consult the ECT Fire& Process Safety Team if you feel the above criteria do not fit your need.

Fireproofing material described in TAS-01-M2 is clearly and governs all needs in API 2218 and Chevron 1700.

Comparison of Fireproofing Specification Items Description TAS-01-M2 Process Unit Fireproofing

API Publication 2218 Second Edition, August 1999 Maintenance A) Hairline Cracking When more than hairline cracking appears, the openings should be cleaned out and filled with new material according to manufacturer’s instructions B) Substrate Bonding Loss of bonding to the substrate may be determined by surface  bulges or an abnormal sound when the surface is tapped with a light hammer C) Bond Failure In evident areas of bond failure, fireproofing should be removed and the substrate should be thoroughly cleaned and properly  primed before new material is applied. D) Surface Coating If surface coating is required to  prevent moisture from  penetrating, it should be renewed at intervals recommended by the manufacturer. The previously listed inspections should be completed prior to renewal of coating so that defects are not hidden by the coating.

Page 9 of 9

Chevron 1700 Fireproofing, March 2010 removing small sections of fireproofing to allow a more thorough inspection and determine the extent of the corrosion.

Commentary