OPERATIONAL PROCEDURES FOR THE

RICH TEST BEAM STAND AT THE

MESON TEST BEAM FACILITY

BTEV ENGINEERING NOTE 8918.130-EN-XXX

Author: Herman Cease, PPD/MECH. DEPT/BTEV

March 15, 2002

Edited June 11, 2004

Edited August 18, 2004

Approved By:\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

PPD/MECH. DEPT/BTeV Project Mech. Support Leader

### LIST OF PROCEDURES

N2 Fill Procedure

C4F8O Fill Procedure

Drain Procedure

Operating Procedure

Purge Procedure

Failure mode Analysis

1\) What if a power outage occurs during normal operation?

2\) What if a power outage occurs during a gas fill operation?

3\) What if a power outage occurs during a purge/recycle operation?

4\) What if a valve is CLOSEd by mistake and the recirculating pump
deadheads?

5\) What if the 15 psi backpressure valve fails?

6\) What if the gas fill procedure is not followed?

7\) What if the gas purge/recycle procedure is not followed?

**N2 Fill Procedure**

**Purpose:**

## 

> The purpose of this procedure is to fill the system with the nitrogen
> gas the first time the system is used. The nitrogen gas is used as a
> gas to initially purge the system of contaminates and water vapor.

**Procedure:**

Inert gas is plumbed into the system via a manifold in the gas shed at
MV-1103.

1.  Prepare the system by OPENing valves MV1104, MV1106, MV-1119, and
    MV 1301. CLOSE valves MV-1201, MV-1202, MV-1214, MV-1103, MV-1217
    and MV-1302. Open MV-1305 as a vent. The expansion volume should be
    deflated -- at its smallest volume. FI-1104 can be used to monitor
    the flow rate.

2.  Turn on the nitrogen vent purge line by OPENing the metering valve
    on FI-1104. The flow should be small, about 20 scfh air.

3.  The nitrogen should flow for a minimum of 2 hrs to completely purge
    the system with one exchange volume. Independently OPEN and CLOSE
    valves MV-1201 and MV-1202 to ensure nitrogen has been purged
    through the plumbing lines and Cerenkov tank. Humidity sensor 1114
    can also be monitored.

4.  Once the system has been purged, CLOSE valve MV-1305, MV-1201 and
    MV-1202. Inflate the expansion volume until the height gage HT-1119
    is reading appropriately for the current barometric pressure.
    (HT-1119 should be in the middle of its scale when the current
    barometric pressure is reading 14.7 psia). Then CLOSE valve the
    metering valve on FI-1104 and MV-1103.

5.  The system should be stable.

    **C4F8O Fill Procedure, and Purification**

    **Purpose:**

## 

> The purpose of this procedure is to fill the system with the C4F8O gas
> with purity better than 99%. This procedure assumes the system was
> backfilled with dry nitrogen gas.

**Procedure:**

1.  Prepare the system in a purging configuration, OPEN valves MV-1104,
    MV-1106, MV-1119, MV-1214, MV-1301 and MV-1201. CLOSE valves,
    MV-1101, MV-1202, and MV-1300. Turn OFF the circulating pump-1099.

2.  Start filling the system with C4F8O by opening valve MV-1103 and
    regulating the flow with PRV-1102 and the metering valve on FI-1104.

3.  Turn on the automatic control loop. The loop turns on pump 1240 if
    the expansion volume becomes full and turns the pump off when the
    expansion pump is low. C4F8O is flowing into the system at a low
    flow rate. Make sure that the flow rate thru FI-1303 is greater than
    FI-1104 when the pump is operating.

4.  Monitor the differential pressure gage DPT-1118 and PT-1111, when
    the gage indicates a static head of C4F8O the system has been
    filled.

5.  Monitor DPT-1233, when liquid has formed in the condensation tank,
    it can be re-evaporated and used to fill the cerenkov tank. Open
    valves MV-1217 and PRV-1218.

6.  The purity of the gas can be monitored by taking samples from
    MV-1305 and checking the density of the gas. A simple method is to
    weigh a known volume of the gas using a small sample bottle.

Drain Procedure

**Purpose:**

> The purpose of this procedure is to have a method to drain and
> recapture as much of the C4F8O gas as possible, while backfilling the
> tank with an inert dry gas like nitrogen.

**Procedure:**

1.  Operate the system using the fill procedure, however substitute
    C4F8O supply bottle with a N2 gas bottle.

2.  Once the condensation tank 1219 is full, stop the system and close
    all valves.

3.  Attach a DOT approved empty cylinder to sample port MV-1219. OPEN
    MV-1219 and allow the liquid to be transferred into the DOT
    cylinder.

4.  Repeat steps 1, 2 and 3 until all of the condensed gas has been
    transferred into the DOT cylinder.

    **FAILURE MODE ANALYSIS --OLD VERSION**

    **Summary:**

> A failure mode analysis is performed on the system. In the event a
> failure does occur, the failure mode analysis will indicate what the
> possible actions are for the different failure modes.

## Failure mode Analysis

1\) What if a power outage occurs during normal operation?

Risk: Re-circulating pump turns OFF.

Result: Possible increase in radiator gas contamination.

Risk: Instrumentation turns OFF.

> Result: Operator may not understand exact gas properties during power
> outage.

2\) What if a power outage occurs during a gas fill operation?

Risk: May overfill tank.

> Result: Tank cannot be overfilled/pressurized because it has a relief
> valve.

Risk: May waste gas by overfilling tank.

> Result: Operator knows to stop the gas fill by closing the gas fill
> manual valve.

3\) What if a power outage occurs during a purge/recycle operation?

Risk: Condensation tank warms up.

> Result: Gas vaporization cannot overfill/pressurize the Cerenkov tank
> because it has a relief valve.

Risk: May waste gas by overfilling Cerenkov tank.

> Result: Operator should stop the gas fill, CLOSE the gas fill manual
> valve and CLOSE the condensation tank manual isolation valve.

4\) What if a valve is CLOSEd by mistake and the re-circulating pump
deadheads?

Risk: Excessive head pressure at the pump could damage the pump.

> Result: A relief valve is located on the discharge side of the pump,
> if the pressure becomes excessive, the valve vents to the pump
> suction.

5\) What if water condenses out in the condensation tanks?

> Risk: Water vapor contamination in the Cerenkov tank.
>
> Result: All gas entering the Cerenkov tank is first filtered through a
> desiccant dryer, and the gas is monitored with a humidity sensor
> before entering the Cernekov tank.

6\) What if the Condensation tanks overfill?

Risk: Wasting C4F8O Gas.

> Result: The operator should monitor the level in the condensation
> tanks to prevent over filling and wasting the c4f8o.

7\) What if there is a fire?

Risk: Flammable gas?

Result: This gas is a non-toxic non-flammable gas.

8\) What if there is a leak?

Risk: ODH concerns.

> Result: The system contains a fixed volume of gas that is
> approximately 250 ft\^3. The system is located at Meson Test Beam
> Facility where the room volume is very large (\~30,000 cu. Feet.). The
> gas will not displace enough oxygen to become an ODH concern.
>
> 9\) What if the condensation tank warms up and the C4F8O starts to
> vaporize and backfills into the Cerenkov tank?

Risk: Wasting C4F8O gas, contamination of the Cerenkov tank.

> Result: The Cerenkov tank will overfill, causing the C4F8O gas to be
> vented out the relief valve in the expansion volume. The operator
> should realize an error has occurred when the expansion volume starts
> inflating which would be observed by monitoring the height gage
> HT-119.
>
> The vapor could also be vented out the relief valve on the
> condensation tank.

**Appendix A**

Tables:

  -------------------- ------------ ---------- ---------- ---------- ----------
  Calculate static                                                   
  head of c4f8o                                                      

                       8.46117      kg/m\^3    density of            
                                               gas                   
                                               relative              
                                               to air)               

  height                                                             

  of column            static head                                   

  m                    Pascals      feet       inches     psid       inches h20

  0                    0            0          0          0          0

  0.015206424          1.27249      0.04989    0.598678   0.000185   0.005108

  0.6096               51.0119      2          24         0.007398   0.204788

  1.2192               102.024      4          48         0.014797   0.409575

  1.1938               99.8984      3.916667   47         0.014489   0.401042

  1.4986               125.404      4.916667   59         0.018188   0.503436

  0.4318               36.1335      1.416667   17         0.005241   0.145058

  0.7366               61.6394      2.416667   29         0.00894    0.247452

  1.0414               87.1454      3.416667   41         0.012639   0.349845

  1.3462               112.651      4.416667   53         0.016338   0.452239

  1.524                127.53       5          60         0.018496   0.511969
  -------------------- ------------ ---------- ---------- ---------- ----------

Vapor pressure

29.5 psia (14.8 psig) at \@20C

Appendix B

C4F8O MSDS

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**MATERIAL SAFETY DATA SHEET**

1\. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

**MATHESON TRI-GAS, INC.**

**EMERGENCY CONTACT:**

**959 ROUTE 46 EAST**

**CHEMTREC 1-800-424-9300**

**PARSIPPANY, NEW JERSEY 07054-0624**

**INFORMATION CONTACT:**

**973-257-1100**

**SUBSTANCE: OCTAFLUOROTETRAHYDROFURAN**

**TRADE NAMES/SYNONYMS:**

MTG **MSDS** 249; PERFLUOROTETRAHYDROFURAN; **C4F8O**; 00227392

**CHEMICAL FAMILY:** cyclic, halogenated, ethers

**CREATION DATE:** Oct 26 2001

**REVISION DATE:** Mar 19 2003

2\. COMPOSITION, INFORMATION ON INGREDIENTS

**COMPONENT:** OCTAFLUOROTETRAHYDROFURAN

**CAS NUMBER:** 773-14-8

**PERCENTAGE:** 100

3\. HAZARDS IDENTIFICATION

**NFPA RATINGS (SCALE 0-4):** HEALTH=2 FIRE=0 REACTIVITY=0

**EMERGENCY OVERVIEW:**

**COLOR:** colorless

**PHYSICAL FORM:** compressed, liquefied gas

**ODOR:** odorless

**MAJOR HEALTH HAZARDS:** difficulty breathing

**PHYSICAL HAZARDS:** Containers may rupture or explode if exposed to
heat.

**POTENTIAL HEALTH EFFECTS:**

**INHALATION:**

**SHORT TERM EXPOSURE:** nausea, vomiting, irregular heartbeat,
headache, drowsiness, fatigue,

dizziness, tingling sensation, loss of coordination, suffocation,
convulsions, unconsciousness, coma

**LONG TERM EXPOSURE:** no information is available

Page 2 of 6

**SKIN CONTACT:**

**SHORT TERM EXPOSURE:** frostbite

**LONG TERM EXPOSURE:** no information is available

**EYE CONTACT:**

**SHORT TERM EXPOSURE:** frostbite, blurred vision

**LONG TERM EXPOSURE:** no information is available

**INGESTION:**

**SHORT TERM EXPOSURE:** frostbite

**LONG TERM EXPOSURE:** no information on significant adverse effects

4\. FIRST AID MEASURES

**INHALATION:** If adverse effects occur, remove to uncontaminated area.
Give artificial respiration if not

breathing. If breathing is difficult, oxygen should be administered by
qualified personnel. Get immediate

medical attention.

**SKIN CONTACT:** If frostbite or freezing occur, immediately flush with
plenty of lukewarm water (105-

115 F; 41-46 C). DO NOT USE HOT WATER. If warm water is not available,
gently wrap affected parts in

blankets. Get immediate medical attention.

**EYE CONTACT:** Contact with liquid: Immediately flush eyes with plenty
of water for at least 15 minutes.

Then get immediate medical attention.

**INGESTION:** If a large amount is swallowed, get medical attention.

**NOTE TO PHYSICIAN:** For inhalation, consider oxygen.

5\. FIRE FIGHTING MEASURES

**FIRE AND EXPLOSION HAZARDS:** Negligible fire hazard. Containers may
rupture or explode if

exposed to heat.

**EXTINGUISHING MEDIA:** carbon dioxide, regular dry chemical

Large fires: Use regular foam or flood with fine water spray.

**FIRE FIGHTING:** Move container from fire area if it can be done
without risk. Cool containers with water

spray until well after the fire is out. Stay away from the ends of
tanks. Withdraw immediately in case of

rising sound from venting safety device or any discoloration of tanks
due to fire. For tank, rail car or tank

truck, evacuation radius: 800 meters (1/2 mile). Use extinguishing
agents appropriate for surrounding fire.

Cool containers with water spray until well after the fire is out. Apply
water from a protected location or

from a safe distance. Do not get water directly on material. Reduce
vapors with water spray. Avoid

inhalation of material or combustion by-products. Stay upwind and keep
out of low areas. Consider

downwind evacuation if material is leaking.

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**FLASH POINT:** not flammable

**LOWER FLAMMABLE LIMIT:** not flammable

**UPPER FLAMMABLE LIMIT:** not flammable

**HAZARDOUS COMBUSTION PRODUCTS:**

Thermal decomposition products or combustion: oxides of carbon, hydrogen
fluoride, perfluoroisobutylene

6\. ACCIDENTAL RELEASE MEASURES

**OCCUPATIONAL RELEASE:**

Stop leak if possible without personal risk. Keep unnecessary people
away, isolate hazard area and deny

entry. Stay upwind and keep out of low areas.

7\. HANDLING AND STORAGE

**STORAGE:** Store and handle in accordance with all current regulations
and standards. Store in a well-

ventilated area. Avoid heat, flames, sparks and other sources of
ignition. Avoid direct sunlight. Subject to

storage regulations: U.S. OSHA 29 CFR 1910.101. Keep separated from
incompatible substances.

8\. EXPOSURE CONTROLS, PERSONAL PROTECTION

**EXPOSURE LIMITS:**

**OCTAFLUOROTETRAHYDROFURAN:**

No occupational exposure limits established.

**VENTILATION:** Provide local exhaust ventilation system. Ensure
compliance with applicable exposure

limits.

**EYE PROTECTION:** For the gas: Eye protection not required, but
recommended. For the liquid: Wear

splash resistant safety goggles. Contact lenses should not be worn.
Provide an emergency eye wash fountain

and quick drench shower in the immediate work area.

**CLOTHING:** For the gas: Protective clothing is not required. For the
liquid: Wear appropriate protective,

cold insulating clothing.

**GLOVES:** Wear insulated gloves.

**PROTECTIVE MATERIAL TYPES:** neoprene

**RESPIRATOR:** Under conditions of frequent use or heavy exposure,
respiratory protection may be needed.

Respiratory protection is ranked in order from minimum to maximum.
Consider warning properties before

use.

**For Unknown Concentrations or Immediately Dangerous to Life or Health
-**

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Any supplied-air respirator with full facepiece and operated in a
pressure-demand or other positive-pressure

mode in combination with a separate escape supply.

Any self-contained breathing apparatus with a full facepiece.

9\. PHYSICAL AND CHEMICAL PROPERTIES

**PHYSICAL STATE:** gas

**COLOR:** colorless

**PHYSICAL FORM:** compressed, liquefied gas

**ODOR:** odorless

**MOLECULAR WEIGHT:** 216.03

**MOLECULAR FORMULA:** C4-F8-O

**BOILING POINT:** 31 F (-0.8 C)

**FREEZING POINT:** Not available

**VAPOR PRESSURE:** 29.5 psia @ 20 C

**VAPOR DENSITY:** Not available

**SPECIFIC GRAVITY:** Not applicable

**DENSITY:** 1.52 g/mL

**WATER SOLUBILITY:** Not available

**PH:** Not applicable

**VOLATILITY:** 100%

**ODOR THRESHOLD:** Not available

**EVAPORATION RATE:** Not applicable

**VISCOSITY:** 0.1 cP

**COEFFICIENT OF WATER/OIL DISTRIBUTION:** Not applicable

10\. STABILITY AND REACTIVITY

**REACTIVITY:** Stable at normal temperatures and pressure.

**CONDITIONS TO AVOID:** Protect from physical damage and heat.
Containers may rupture or explode if

exposed to heat.

**INCOMPATIBILITIES:** oxidizing materials

**HAZARDOUS DECOMPOSITION:**

Thermal decomposition products or combustion: oxides of carbon, hydrogen
fluoride, perfluoroisobutylene

**POLYMERIZATION:** Will not polymerize.

11\. TOXICOLOGICAL INFORMATION

Not available

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12\. ECOLOGICAL INFORMATION

Not available

13\. DISPOSAL CONSIDERATIONS

Dispose in accordance with all applicable regulations.

14\. TRANSPORT INFORMATION

**U.S. DOT 49 CFR 172.101:**

**PROPER SHIPPING NAME:** Compressed gas, n.o.s.

(OCTAFLUOROTETRAHYDROFURAN)

**ID NUMBER:** UN1956

**HAZARD CLASS OR DIVISION:** 2.2

**LABELING REQUIREMENTS:** 2.2

**CANADIAN TRANSPORTATION OF DANGEROUS GOODS:**

**SHIPPING NAME:** Compressed gas, n.o.s. (OCTAFLUOROTETRAHYDROFURAN)

**UN NUMBER:** UN1956

**CLASS:** 2.2

15\. REGULATORY INFORMATION

**U.S. REGULATIONS:**

**CERCLA SECTIONS 102a/103 HAZARDOUS SUBSTANCES (40 CFR 302.4):** Not
regulated.

**SARA TITLE III SECTION 302 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR
355.30):** Not

regulated.

**SARA TITLE III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR
355.40):** Not

regulated.

**SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS CATEGORIES (40 CFR
370.21):**

ACUTE: Yes

CHRONIC: No

FIRE: No

REACTIVE: No

SUDDEN RELEASE: Yes

**SARA TITLE III SECTION 313 (40 CFR 372.65):** Not regulated.

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**OSHA PROCESS SAFETY (29CFR1910.119):** Not regulated.

**STATE REGULATIONS:**

**California Proposition 65:** Not regulated.

**CANADIAN REGULATIONS:**

**WHMIS CLASSIFICATION:** Not determined.

**NATIONAL INVENTORY STATUS:**

**U.S. INVENTORY (TSCA):** Listed on inventory.

**TSCA 12(b) EXPORT NOTIFICATION:** Not listed.

**CANADA INVENTORY (DSL/NDSL):** Not determined.

16\. OTHER INFORMATION

©Copyright 1984-2004 MDL Information Systems, Inc. All rights reserved.

**MATHESON TRI-GAS, INC. MAKES NO EXPRESS OR IMPLIED WARRANTIES,**

**GUARANTEES OR REPRESENTATIONS REGARDING THE PRODUCT OR THE**

**INFORMATION HEREIN, INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTY**

**OF MERCHANTABILITY OR FITNESS FOR USE. MATHESON TRI-GAS, INC. SHALL
NOT BE**

**LIABLE FOR ANY PERSONAL INJURY, PROPERTY OR OTHER DAMAGES OF ANY**

**NATURE, WHETHER COMPENSATORY, CONSEQUENTIAL, EXEMPLARY, OR**

**OTHERWISE, RESULTING FROM ANY PUBLICATION, USE OR RELIANCE UPON THE**

**INFORMATION HEREIN.**