Industrial Hygiene Assessment 

Report 

Prepared For: 

American Pacific Corporation 

3883 Howard Hughes Pkwy #700 

Las Vegas, Nevada 89169 

Facility Serviced: 

Amerex Corporation 

7595 Gadsden Highway 

Trussville, Alabama 35173 

Prepared By: 

Jordan M. Ferguson, EIT 

Safety and Environmental Engineer 

Ferguson Risk Management, LLC 

Assessment Dates: 

July 20 and August 11, 2015 

Accompanied By: 

Mr. Bradford Colton-AMPAC 

Mr. Fred Goodnight-Amerex 

Mr. Mitch Ferguson, CIH-FRM 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel , nor are they intended 

to supplant any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment 

report rests with the client not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 3 of 21 

PURPOSE: 

On July 20 and August 11, 2015, at your request, I visited the Amerex production facility located 

in Trussville, Alabama to conduct a limited industrial hygiene assessment. The purpose of the 

assessment was to evaluate the indoor air environment around the HalotronTM I hand portable 

extinguisher filling area to identify potential personnel exposures. 

OVERVIEW OF ASSESSMENT RESULTS: 

The following pages of the assessment report discuss the collected exposure data and a 

discussion of their significance. Exposure concentrations are presented in parts per million 

(ppm) in air by location. 

Background and Sampling Methods: 

Amerex manufactures a full line of hand portable and wheeled fire extinguishers. In Department 4, 

Amerex manufactures clean agent portable fire extinguishers and clean agent fire suppression 

systems. Amerex utilizes industry recognized HalotronTM I, DuPontTM FM-200®, 3MTM NovecTM 

1230 Fire Protection Fluid, and recycled Halon 1211 to produce these clean agent fire 

extinguishers and systems. The focus of the industrial hygiene assessment was to characterize 

the potential personnel exposure in the HalotronTM I hand portable extinguisher filling area, but 

the other clean agents must be considered due to the cross sensitivity of the sampling 

equipment used. 

A Thermo ScientificTM MIRAN SapphiRe 205BXL Portable Ambient Analyzer, which is an industry 

standard instrument for this kind of work, was utilized to accurately measure the concentrations in 

air of constituents that include the Halotron TM I agent. Halotron TM I is a chemical blend based on 

the raw material dichlorotrifluoroethane (R-123) which is an included gas in the MIRAN SapphiRe 

XL's factory calibrated 120 gas standard library. 

The MIRAN SapphiRe is a portable ambient air analyzer containing a single-beam infrared 

spectrophotometer. A microcontroller automatically controls the analysis, processes the 

measurement signal, and calculates the absorbance values. For R-123, analysis results were 

displayed in parts per million (ppm). 

The continuous sample logging mode was utilized to monitor various locations for various time 

periods. Reference, temperature, and humidity compensations were enabled during the 

continuous sampling mode. During the continuous logging mode, data was logged after every 

second. The analyzer measures data at a rate of two points per second, therefore for a log 

interval of one second there will be two data points to choose from. During the continuous logging, 

the analyzer stored the maximum, minimum, and average data result for the one second log 

interval. 

Various scenarios and locations were sampled in the Amerex facility on two separate dates. 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 4 of 21 

Sampling Results: 

On July 20, 2015, the primary purpose of the sampling event was to characterize the potential 

operator exposure in the Halotron TM I filling area and to assess the effective capture of the 

Halotron TM I inside the extinguisher filling box by the local exhaust ventilation. On the date of the 

Air Sampling Data for HalotronTM 1- July 20,2015 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 5 of 21 

Calculation of HalotronTM I Fill Operator Time Weighted Average (TWA): 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 6 of 21 

Similar to the July monitoring date, the operator was filling five pound portable fire extinguishers 

on the August sampling date. 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 7 of 21 

Air Sampling Data for Halotron TM I -August 11 ,2015 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 8 of 21 

POTENTIAL FUTURE WORK: 

Due to the cross-sensitivity issues encountered, accurate background levels for the HalotronTM I 

agent could be determined using a Tedlar® gas bag or other whole air grab sampling. IR 

monitors such as the MIRAN SapphiRe will respond to other gases which absorb at similar 

wavelengths, but a whole air grab sample could potentially help to understand the interference 

caused by the other chemical agents in the HalotronTM I filling area. The MIRAN SapphiRe 

portable ambient air analyzer accuracy must also be considered when discussing the sampling 

results. The factory calibrated tolerance for dichlorotrifluorethane (R123-H) is plus or minus 15% 

of the reading. 

Appendices: 

Appendix I 

Appendix II 

Appendix Ill 

Appendix IV 

July 20, 2015 Sampling Results 

August 11, 2015 Sampling Results 

Sampling Location Photographs 

MIRAN SapphiRe Calibration Data 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 9 of 21 

APPENDIX I 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
Amerex Corporation 

Location of Assessment: Trussville, Alabama 

Date of Assessment: February 12, 2015 

Page 10 of 21 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 11 of 21 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 12 of 21 

APPENDIX II 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 13 of 21 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 14 of 21 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 15 of 21 

APPENDIX Ill 

CONFIDENTIAL 

Figure 1. Location of probe for assessing exposures within the HalotronTM I Filling Area. 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 16 of 21 

Figure 2. Location of probe for assessing exposures within the HalotronTM I Filling Booth. 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 17 of 21 

APPENDIX IV 

NOTICE 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 18 of 21 

Thermo Fisher 

SCIE iiFtC 

AAo02 

' 

SAPPHIRE CALIBRATION VERIFICAT10N 

DATE: 2~ ul~15 

CUSTOMER: Gatson Labora ones 

SERIAL II: 2058-79419-399 

SALES ORDER 1: 33940 

ethane 

(CH4) 

Range: o.so ppm 

WaYetength. 3.333 1Jm 

INJEC1'l0 

SErnNG 

1.0 

Carbon onoxld 

(CO) 

Range: 0-50 ppm 

wa lengttl: 4.62 IJm 

lt-4JECT10N 

SETTING 

2 

·--

·-

ACT\JAL 

CONCENTRATlON (Jli)CTI) 

25.0 

ACTUAL 

CONCENTRATK>N(ppm) 

2M 

NOTICE 

TEMP: Ambient 

PRESSURE: 760 mm '\-ig 

SET #: 1 

APPUC. CHEMIST : CtiQ.JJ)UJ 1M~ Ulur Faraone .. . 

•. 

INSTRIJME %ERROR 

READING (ppm) of READING 

25.5 2.0 

I~TRUMENT ' %ERROR 

READING {ppm) '·ofREAOING 

26.0 I 4 0 

... --

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 19 of 21 

Thermo Fisher 

SCIENTIFIC 

Chloroform 

(CHCI3) 

Range: 0.10 ppm 

Wwve ngth: 13.058 11m 

INJE.CTION ACTUAL 

semoo CONCENTRAOON (P!)rn) 

2.00 7.0 

Carbon Oloxlde.OifferenU.I 

(COi-DIFf) 

Range: 0-1000 ppm 

Wavelength: 14.0 11m 

I JECTlON 

SETTI G 

2 

, ____ . ___ ,,... 

ACTUAl 

CONCENTRA TIO 

667 

NOTICE 

l~UMEHT 

READIOO {ppm) 

6.9 

.... 

%ERROR 

oiREAOING 

'-1.EI 

%ERROR 

of READING 

-2.4 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 20 of 21 

SapphiR CALl BRA TION VERIFICATION 

itrous Oxld 

{ 20) 

Rang 

Wave 

·-

·--

I.E Mo oring I 

1$0037 

19 an-15 

760mm Hg 

Am bien 

Lon 

1'1 

NOTICE 

men 

... 

4.1 

28078 

PSTDSET4 

me: Se ~ 

%ErrOl' 

Reading 

-4.0 

%Error 

Reading 

1.9 

%Error 

Re 1ng 

0 

Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC. 
AM PAC 

Location of Assessment: Amerex-Trussville, Alabama 

Date of Assessment: July 20, August 11 , 2015 

Page 21 of 21 

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Ferguson Risk Management, LLC's consulting activities and recommendations are not intended as a substitute for advice from legal counsel, nor are they intended to supplant 

any duty to provide a safe workplace, operation, product or premises. Any duty to implement recommendations identified in this limited assessment report rests with the client 

not with Ferguson Risk Management, LLC.