ML20148B676

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Registry of Radioactive Sealed Sources & Devices,Safety Evaluation of Gauge Source for Model 3F1R. Certificate:NR-460-S-141-U
ML20148B676
Person / Time
Issue date: 07/10/1968
From:
NRC
To:
Shared Package
ML20148B644 List:
References
SSD, NUDOCS 9705130237
Download: ML20148B676 (4)
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Text

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O REGISTRY OF RADI0 ACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE N0.: NR460S141U DATE: July 10, 1968 PAGE 1 0F 2 i SEALED SOURCE TYPE: Gauge Source MODEL: 3 FIR

. MANUFACTURER / DISTRIBUTOR: Minnesota Mining and Manufacturing 3M Center St. Paul, MN 55101

~ MANUFACTURER / DISTRIBUTOR:

ISOTOPE: Strontium-90 MAXIMUM ACTIVITY: 25 millicuries ,

LEAK TEST FREQUENCY:

PRINCIPAL USE: Beta Gauges CUSTOM SOURCE: YES X NO 9705130237 960126 PDR RC

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D Q-REGISTRY.0F RADI0 ACTIVE SEALED SOURCES AND DEVICES SAFETY EVALUATION OF SEALED SOURCE

.NO.: NR460S141U- DATE: July 10, 1968 PAGE 2 0F 2 SEALED SOURCE TYPE: ' Gauge Source DESCRIPTION: '

The radioactive material in the form of 3M Microspheres is encapsulated in an inner capsule 0.16" in diameter and 0.25" high with a 2 mil thick stainless steel window, ;

gold brazed in place at one end. A stainless steel plug is pushed in place behind  !

the radioactive material and welded in place to seal the capsule. This inner capsule is assembled.into an outer capsule unit 0.485" in diameter and 1.207" ,

l high. A stainless steel plug is then pressed in behind the inner capsule and

. welded in place. The source is designed to be mounted in the Beta-3 Glass Wall  ;

Thickness Gauge manufactured by the Ball Brothers Research Corporation. l LABELING:  !

The isotope, activity and serial number of the source is on the outer capsule.

QUALITY ASSURANCE AND CONTROL:

The following quality control procedures are performed on each unit:

1. A bubble test on the inner capsule after sealing.
2. A smear test on the inner capsule before assembly into the outer capsule unit.
3. A swipe test of the entire assembly at the time of manufacture and again  ;

!= immediately before shipping to the customer.  !

i. i l All of these' tests must be negative as evidence by the lack of bubbles in the leak i test and the presence-of less than 0.0005 microcurie of strontium-90 on the swipe {

test or the source is rejected.

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. O 9 0FFICIAL USE ONLY SEALED SOURCE MANUFACTURER & DISTRUBUTOR: ISOTOPE:

3M Company Strontium 90 - up to St. Paul, Minnesota 25 n1111 curies MODEL: USE:

3FlR Gage Source DESCRIPTION:

The radioactive material in the form of 3M Microspheres is encapsulated in an inner capsule 0.16" in diameter and 0.25" high with a 2 mil thick stainless steel window, gold brazed in place at one end. A stainless steel plug is pushed in place behind the radioactive material and welded in place to seal the capsule. This inner capsule is assembled into an outer capsule unit 0.485" in diameter and 1.207" high. A stainless steel plug is then pressed in behind the inner capsule and welded in place.

The source is designed to be mounted in the Beta-3 Glass Wall Thickness Gage manufactured by the Ball Brothers Research Corporation.

( QUALITY CONTROL:

The following quality control procedures are performed on each unit:

1. A bubble test on the inner capsule after sealing.
2. A smear test on the inner capsule before assembly into the outer cap-sule unit.
3. A swipe test of the entire assembly at the time of manufacture and again immediately before shipping to the customer.

All of these tests must be negative as evidence by the lack of bubbles in the leak test and the presence of less than 0.0005 microcuries of strontium 90 on the swipe test or the source is rejected.

LABELLING:

The isotope, activity and serial number of the source is on the outer capsule.

July 10, 1968 U. S. ATOMIC ENERGY COMMISSION EEllEIAL ESE QNhl

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3M Health Phys'Ictnservkes

. 224 2ECS 3M Center St. Paul. MN S Bldk1441000 612/736 0498 August 6, 1991 l

U.S. Nuclear Regulatory Commission Washington D.C. 20555 .

1 Attn: Mr. Steven L. Baggett Nuclear Material Safety and Safeguards Medical and Commercial Use Safety Branch l Mail Stop 6H3

Subject:

Inactive Source Registrations Gentlemen:

In accordance with a July 25, 1991 telephone conversation between Mr. Melvin R. Peters, 3M, and Mr. John W. Lubinski, NRC, enclosed is a listing of registered 3M sources which should be terminated. The manufacturing of these sources either has been, or will have been, permanently discontinued by September 30, 1991.

It is our understanding that upon termination:

1. The registrations will become part of NRC's inactive file, but present users of the sources may continue to use them.
2. 3M can accept the sources for disposal and leak testing, but cannot refurbish or repair them.
3. 3M, on a best effort basis, will provide the NRC with a listing of the total number of sources sold and the date of the last sale.
4. The annual maintenance fee for the registrations will be waived'.

Yo s t uly, s

l obert . issink, Chairman Isotope Committee

Enclosure:

3M Inactive Source List (July 27, 1991)

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- . _ _ _ _ . - _ - _ . _ _ _ . _ _ _ _ _ _ . - _ . _ _ _ _ _ _ _ _-.. _ ___ _ . ~ . . _ - _ . _ _

t lD Q 07/29/91 MINNESOTA MINING & MFG (TO INACTIVE STATUS) PAGE 1 SOURCE INVOICE i LICENSE 8 MODEL i AMO 6645 91 STB 1129 THORIUM AM0 65k1 91 22 00057 34G 703 AMO 6628 91 NR'0459S-101 S / 4F6Y AMO 6629 91 NR 0459S 102 S ', 3F1G //

AMO 6551 91 NR 0460S 101 U' 4F6D i AMO 6552 91 NR 0460S 102 S. 4F6H # &cy o gg 7 g4 qc , 7__7 j AMO 6553 91 NR 0460S 103 Ui 4F6G!/ '

AMO 6554 91 NR 0460S 105 U 686F /

i AMO 6555~91 NR 0460S 106 U 4F6P /

j AMO 3556 91 NR 0460S 107 S 1C2A.1C2B /

AMO 6557 91 NR 0460S 108 U 4F3Be i AM 'J 6558 91 NR 0460S 109 U 4F3C /

A%0 6543 91 NR 0460D 110 U 3MIC /

AMO 6544 91 NR 04600 111 U 3M1B/

AM0'6559 91 NR 0460S 112 U 3E4G / j AMO 6560 91 NR 0460S 113 U. 4D3A/ l AMO 6561 91 NR 0460S 114 0 4038/

AMO 6562 91 NR 0460S 115 U 4D60 /

AMO 6563 91 NR 0460S 116 U 4D6F' AMO 6564 91 NR 0460S 117 U SF1D /

AMO 6565 91 NR 0460S 118 U 5FIE /

AMO 6566 91 NR 0460S 119 U SF1F /

AMO 6567 91 NR 0460S 120 U SFIG /

AMO 6568 91 NR 0460S 121 U 3 L2B /

AMO 6569 91 NR 0460S'122 U 3L2A/

AMO 6545 91 NR 0460D 123 U 3M1F/

AMO 6570 91 NR 0460S 124 U 3L2C /

AMO 6571 91 NR 0460S 125 U 1E2J V AMO 6572 91 NR 0460S 126 U 3F1G /

AMO 6573 91 NR 0460S 127 U 4F1E /

AMO 6574 91 NR 0460S 128 U S F 1 H "

AMO 6575 91 NR 0460S 129 U 3E40 v AMO 6576 91 NR 0460S 130 U SF1N k' AMO 6577 91 NR 0460S 131 0 5 FIN ( MOD IFI ED ) v',

AMO 6578 91 NR 0460S 132 U /

AMO 6579 91 NR 0460S 133 U 7 B 8 L v/j 6H6A AMO 6580 91 NR 0460S 134 U 6H68/

-AMO 6581 91 NR 0460S 135 U 4D6M" AMO 6582 91 NR 0460S 136 U JL2E

/

AMO 6583 91 NR 0460S 137 SSpl6500 ,4 6520 (FORMERLY 6D6C) #

AMO 6584 91 0 4R 0460S 138 U 3L2D p

AMO 6585 91 1NR 0460S 139 U 3Q1D AMO 6586 91 140 U 3E4L, 3 E 4 5 /' -

AMO 6587 91 f!NR0460S

,.NR 0460S 141 U 3F1R / /

AMO 6546 91 l'NR 0460D 142 G 902, 902F, 903/ -

AMO 6588 91 d C NR 0460S 143 S kP6E/--

AMO 6589 91 O NR 0460S 144 S kP6M / --

AMO 6547 91 'V NR 04600 145 U 3M IL * . ' ke AMO 6590 91 b NR 0460S 146 U 3G9A # j q AMO 6592 91 0460S 147 U 3B4G yjpgg( '

  • AMD 6591 91 NR 0460S 147 S 3B4G AM0 6593 91 NR 0460S 148 U 4F3F #--

AM0'6594 91 NR 0460S 149 U 4F3G s' -

lu i 07/29/91 MINNESMA MINING & MFG (TO INACTIn STATUS) PAGE 2 e

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SOURCE LICENSE i INVOICE i MODEL i JY$ j AMO 6595 91 NR 0460S 151 S LI6530, ECW (FORMERLY 6B6G) s' AMO 6548 91 NR 04600 152 U 6H6D l AMO 6596 91 NR 0460S 153 S ALBUMIN MICROSPHERES (HUMAN) TC-99M dV o"d u

AMO 6549 91 NR 0460D 154 U 6H6E SOURCE APPLICATOR, 8C9T SAFE #

AMO 6597 91 NR 0460S 155 S 4D6L /f l

AMO 6598 91 NR 0460S 156 S 4D6P AMO 6599 91 NR 0460S 158 U 3F11.j3F1J, 3FIL /

AMO 6600 91 NR 0460S 159 U 3F1V i AMO 6601 91 NR 0460S 160 U vcwcc3773/  !

AMO 6602 91 NR 0460S 161 U 496T[

4F3D AMO 6603 91 NR 0460S 162 U 4F3H/

AMO 6604 91 NR 0460S 163 S 4F6S / l AMO 6605 91 NR 0460S 164 S 3E40 /

AMO 6606 91 NR 0460S 165 S 6701 /

AMO 6550 91 NR 0460D 168 G 702, 703, 704 db AMO 6609 91 NR 0460S 169 S$edtS10,6550,6570 (FORMERLY 686G) -

AMO 6610 91 NR 0460S 170 S kP6V /j AMO 6611 91 NR 0460S 171 S 4F6ST i

l

85-2.103 31 Aug 1982 i

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! TEST REPORT I'

ANSI TESTS - RECLASSIFICATION

, RADIOACTIVE SOURCES

STATIC CONTROL SYSTEMS /3M j

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Written By /

J.A. Sjoly(der, Engineering Ass't, Quality Control Approved By A M.R. Peters, Supervisor, Quality Control 9 dual ~~

J5K Johnson, Pl#t Manager, New Brighton Plant

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85-2.103 31 Aug 1982 )

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TABLE OF CONTENTS Section Title 1.0 '

Purpose

)

2.0 Digit Representation 3.0 Temperature Tests 4.0 External Pressure Test.s 5.0 Impact Tests 6.0 Vibration Tests l

7.0 Puncture Tests 8.0 Summary s

__ ___ . _ ~ _ - _. ._ _ . __ . _ _ . _. . . _ _

,.- p 85-2.103 l

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31 Aug 1982 t

MINNES0TA MINING AND MANUFACTURING COMPANY STATIC CONTROL SYSTEMS DIVISION

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Building 590, Twin Cities Army Ammunition Plant

'New Brighton, MN 55112 4

ANSI TESTS 1.0 PURPOSE The purpose of this test program was to reclassify the radioactive sources pro-duced by Static Control Systems. The former classifications were in compliance with ANSI N5.10-1968. The present classifications are in compliance with ANSI N5.42-1977. Classifications were developed by actual testing, engineering.

evaluations, and English to metric conversion. The tests were conducted at Environ Laboratories, Minneapolis, MN and 3M Static Control Systems facilities, New Brighton Operations, Twin Cities Army Ammunition Plant.

2.0 DIGIT REPRESENTATION i

2.1 The first digit shall be the Class Number which describes the perform-ance for temperature.

I 2.2 The second digit shall be the Class Number which describes the perform-

ance for external pressure.

! 2.3 The third digit shall be the Class Number which describes the perform-ance for impact.

2.4 The fourth diait shall be the Class Number which describes the perform-ance for vibration.

2.5 The fifth digit shall be the Class Number which describes the perform-ance for puncture.

3.0 TEMPERATURE TESTS 3.1 Equipment The heating and cooling equipment has a test zone volume of at least five times the volume of the test specimen.

Sybron Thermodyne Oven, Model 1300 Associated Testing Laboratories Incorporated Environmental Chamber, 3M I.D. Number 360175 Biddle Versa-Cal Digital TC/mV Test Set, Serial Number 84699, 3M I.D.

Number 20217

- Eberline Miniscaler, M'odel MS-3 H.P. 210 Probe, 3M I.D. Number 465431 For equipment used in previous tests see 3M Technical Notebooks 46703, 4

39842, 21763, 26877.

3.2 Procedure

$ All tests were performed in air except for the low tempe.rature test, where an atmosphere of C02 is permitted. The sources that were sub-

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(_,,)' 85-2.103

) 31 Aug 1982 jected to temperatures below ambient were cooled to the test tempera-tures in less than 45 ninutes. Sources that were subjected to tempera-tures above ambient ware heated to the test temperature at least as rapidly as indicated by the following time / temperature ta' ole.

Time Temperature Min. C 0 Ambient 5 100 10 220 30 450 60 750 120 1010 For Classes 4, 5 and 6, the sources were subjected to a thermal shock test. Either a second test source or the source used in the tempera-ture test was used.

For the thermal shock test, the sources were heated to the maximum test temperature (required for that particular Class) and held at that temperature for at least 15 minutes. The sources were transferred, in 15 seconds or less, to water at a maximum temperature of 20 C. The volume of water was at least twenty times the source volume.

3.3 Evaluation The sources were either wipe tested or leak tested in 130 C glycerin for 2 minutes, or both, to determine if any removable activity was present. No removable activity was present, and no bubble leaks were noted.

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3.4 Illustrations l

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Environmental Chamber - -

Chamber Loading 1

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Sybron Oven - -

Oven Loading -

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85-2.103 31 Aug 1982 GLYCERIf1 AND WIPE TEST

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i 85-2.103 31 Aug 1982 l 3.5 Classes i

Model ANSI N.542 - 1977 Class (Temperature) 384G 3 -

3E4G 3  !

3E4H ' 3 i 3F1E / 5 .

3F1L 5 3F1R 5 -

3FlV 5 3F1G 4 ,

! 3 Flu / 5 1

406D 6 ,

4D6F 6 4D6M 6 .-

4D6P 6 4F6P' 6 -

4P6E 6 4F6H 5 4F6S 6 l 4P6M 6  !

4P6T 6

, 4F6Y 6 l 4D6L 6 l 4P6D 6 3E4L 3 3 3E40 3  :

4P60 6 i' 4P6D 6 I

TABLE 1 - Classification of Sealed Source Performance Tests I I

Class  ;

1 2 3 4 5 6 X Temperature No -40"C -40*C -40*C -40*C 40 C Special Test (20 min) (20 min) (20 min) (20 min) (20 min) Test

+S0*C +180*C +400 C +600 C +800*C (1 hr) (1 hr) (1 hr ) (1 hr) (1 hr) and and and thermal thermal thermal shock shock shock 400*C to 600"C to 800*C to 20*C 20*C 20*C l

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I 85-P.103 l 31 Auc 1982 i

l 4.0 EXTERNAL PRESSURE TESTS 4.1 Equipment The pressure gauge had been recently calibrated and had a pressure range of at least 10% greater than the test pressure. The vacuum l

gauge read to a pressure at least as low as 20 kN/m2 absolute.

Eberline Miniscaler, Model MS-3 H.P. 210 Probe, 3M I.D. Number 465431 l

Enerpac Pump, Model PER 1321, Serial Number OL9

[ - Enerpac Gauge, Model 31-302

- 3M Pressure Test Vessel, Model B.0.M.B.

i For equipment used in previous tests see 3M Technical Notebooks 46703, j 39842, 21763, 26877.

l 4.2 Procedure l The sources were placed into the chamber and exposed to the test pres-l sure (required for that particular Class) for two periods of 5 minutes j each. The pressure was returned to atmospheric between each period.

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4.3 Evaluation .

l The sources were examined visually and wipe tested to determine possible i physical damage and if any removable activity was present. No physical l damage or removable activity occurred.

4.4 Illustrations "O _

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j Enerpac Pump and Gauge B0MB Loading (1) i ,

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i l SS-2.103 31 Aug 1982 I

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I I 85-2.103

\v) Q)' 31 Aug 1982 4 /5 Classes Model ANSI N.542 - 1977 Class (External Pressure) 384G 2 3E4G 2 3E4H 2 3FlE 3 3FlL 3 3FlR 3 -

3FlV 3 3F10 3 3FlG 5 4D6D 6 4D6F 6 ,

4D6M 6 l 4D6P 6 l 4F6P 3 4P6E 6 4F6H 6 4F65 6 1 4P6M 6 l 4P6T 6 4F6Y 6 4D6L 6 3E4L 2 l 3E40 2 4P6U 6 4P6D 6 TABLE 2 - Classification Of Sealed Source Performance Tests 1 l

Test Class 1 2 3 4 5 6 X External Pressure No Test 25 kN/m2 25 kN/m2 25 kN/m2 25 kN/m2 25 kN/m2 Special abs. abs. to abs.tg abs. to abs. to Test (3.6lbf/ 2 MN/m2 7 MN/m 70 MN/m2 170 MN/m2 4 in2) to (290 lbf/ (1010 lbf/ (10153 lbf (24 656 lbf atmosphere in2) abs. in 2) abs. /in2) abs. /in2) abs .

4

85-2.103

31 Aug 1982 l 5.0 IMPACT TEST l 5.1 Equipment f - A free falling steel hanrner which has a flat striking surface 25 mm in diameter with the edge rounded to a radius of 3 mm.

l - A steel anvii, the mass which was at least ten times that of the hammer.

i lt is ripidly nounted so that it does lot deflect during impact. It I has a fli t surface large enough to take the whole of the source.

l - Eberline Miniscaler, Model MS-3 H.P. 210 Probe, 3M I.D. Number 465431.

- Glycerin ilt 12.0-150 C

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l For equipment used in previous test see 3M Technical Notebooks 46703, l 39842, 21763, 26877.

n 5.2 Procedure The source was subjected to the maximum mass required for the particular Class. The drop height was 1 meter. The source was positioned so that it offered its most vulnerable area to the haniner. The hammer was dropped onto the source.

5.3 Evaluation -

The sources were wipe tested to determine if any removable activity was present. Following the wipe test the sources were immersed in glycerin i at 130 C for 2 minutes. The sources were observed for bubble leaks. No i

removable activity and no bubble leaks were present.

5.4 Illustrations

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i Class 4 -

Attachments -

I 2 Kilogram Hammer i

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85-2.103 31 Aug 1982 l

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i Attachment For Class 6 J Attachment For Class 5 -

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f Class 6 Hammer i

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Test Area l- Tested Source (Results) l I

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l 85-2.103 31 Aug 1982 5.5 Classes ,

Model ANSI N.542 - 1977 Class (Impact) 384G 1 3E4G 2 3E4H 2 3FIE 3 3F1L 3 3F1R 3 3F1V 3 3F1U 3 3F1G 3 4D6D 5 406F 5 4D6M 5 4D6P 5 4F6P 3 4P6E 5 4F6H 5 4F6S 5 4P6M 6 4P6T 5 4F6Y 6 4D6L 5 3E4L 2 3E40 2 4P60 6 4P6D 5 TABLE 3 - Classification Of Sealed Source Performance Tests Class Test-1 2 3 4 5 6 X Impact No' Test 50 g 200 g 2 kg 5 kg 20 kg Special (1.9cz) (7 oz) (4.4 lb) (11 lb)- (44 lb) Test from 1 m from 1 m from 1 m from 1 m from 1 ri (3.28 ft) and free drop ten times to a steel surface from 1.5 m (4.92 ft)

p t 1 85-2.103  ;

6.0 VIBRATIO ESTS V 31 Aug 1982 I l

6.1 Equipment

- Eberline Miniscaler, Model MS-3 H.P. 210 Probe l 16.2% efficiency, 3M I.D. Number 465431 l

- Standard 300-2 Cs-137, .0951 pCi, 4/3/81 (traceable to NBS) 1

- Vibration Exciter, M-B Model C-50 i

- Vibration Amplifier, M-B Model T-665 l

- Vibration Control Console, M-B Model T-88, Consisting of: l Unholtz-Dickie Model OSP4 Oscillator, Environ No. 503-103 Amplitude: 13%

Frequency: 12% ,

Unholtz-Dickie Model TF-22 Tracking Filter, Environ No. 503-104

- RMS Voltmeter, Environ No. 250-042 i

- Oscilloscope, Environ No. 300-001D l Frequency: +3% 1 Sensi tivity : 3% l

- Endevco Model 22266 Accelerometers, S/N CW45 l Amplitude: 12%

Frequency: 15% l

- Endevco Model 2711 A Charge Amplifier, Environ No. U.D. l Frequency: 11%

System Accuracy: 11.5% l The above equipment is calibrated and traceable to the National Bureau l oi Standards. '

For equipment used in previous tests see 3M Technical Notebooks 46703, j 39842, 21763, 26877. -

6.2 Procedure l The sources were securely fixed to the platform of the vibrating machine I so that the sources were in contact with the platform at all times. The  !

test was conducted by sweeping through all the frequencies, for that particular Class, at a uniform rate from the minimum frequency to the maximum frequency and returned to the minimum frequency in 10 minutes I or longer. Each axis of the sources were tested (maximum of three axes). '

In addition, the test was continued for 30 minutes at each resonance frequency found.

6.3 Evaluation )

The sources were wipe tested to determine if any removable activity I was present. Following the wipe test the sources were immersed in 130 C glycerin for 2 minutes and observed for bubble leaks. No removable ac-tivity and no bubble leaks were present.

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l O 85-2.103  ;

3 31 Aug 1902

! 6.4 Illustra ns i

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Control Console l l l l l 1 l

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85-2.103

! 31 Auo 1982 l

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! 31 Aug 1982 6.5 Classes J

l Model ANSI N.542 - 1977 Class (Vibration) 3B4G 3 3E4G 3 7 3 3FIE 4 3FIL 4 3 FIR 4 .<

3F1V 4 l

3 flu 4 3FlG 4 4D6D 4 4D6F 4  !

4D6M 4 1 4D6P 4 -

4F6P 4 4P6E 4 4F6H 4 4F6S 4 4P6M 4 4P6T 4 4F6Y 4 <

4D6L 4 I 3E4L 3 l 3E40 3 4P6U 4 4P6D 4 '

TABLE 4 - Classification Of Sealed Source Performance Tests Class l Test 1 2 3 4 5 6 X Vibration No Test 30 Min 30 Min 90 Min Not Not Special 25 to 500 25 to 50 25 to 80 Used Used Test Hz at 5 g Hz at 5 g Hz at 1.5 peak amp. peak amp. nm amp.

and 50 to peak to 90 Hz at peak and 0.635 mm 80 to 2000 amp peak Hz at 20 g i to peak and 90 to 500 Hz at 10 g l

g_._.._._______ __- _ _ _ _ _ _ - _ . _ _ _ _ _ _ . . _ _ _ _ . . _ _ _ _ _ _ _ _ .

f I

E5-2.103

! 31 Aug.. 1982 7.0 PUNCTilRE TESTS l 7.1 Equipment

- A hammer which has a pin rigidly fixed to it. The characteristics of the pin are as follows:

l a. Hardness - 50 to 60 Rockwell C

b. Free Height - 6 mm

, c. Diameter - 3 mm i

d. Lower surface hemispherical

! - A hardened steel anvil rigidly mounted and with a mass at least ten I times that of the hammer.

I - Eberline Miniscaler, Model MS-3 H.P. 210 Probe l

l 7.2 Procedure

! The correct weight hammer was used in accordance with the Class. The drop height was 1 meter. The sources were positioned so they offered the most vulnerable surfaces to the pin. The hammer was dropped onto

, the sources.

{ 7.3 Evaluation I

1 The sources were wipe tested to determine if any removable activity was i l present. Following the wipe test the sources were immersed in glycerine i at 130 C for 2 minutes to determine if any bubble leaks occurred. No

! remevable activity was present and no bubble leaks observed. '

i l 7.4 Illustrations l

I l

i i

i l

l

..: ^i 3

.a -

. n.1 3 ,.

4cm

. .g . .

J '

! y

.r

= mf w, f

? sa I

4 I- g s Y.4 h% ",

. . . . . . . o .

ein -

i 1 -.

Puncture Hammers -

1 Meter Drop Height -

( 50 g, 300 g, 1 Kilogram I 1

1 i

i

)

i 85-2.103 l 31 Aug 1982 I 1 l a l I

m ~

l w ,

M 1

u lI1 1

y >

I

< .  ; 7

-  % l g . /

l 7 /

& , 4 /

i i .i I

/

/

. . 3 4

I i I

i j Unyielding Steel Surface -

Scurce Ready For Testing I

4

E ,

7 -K

,E. .

n e ;g

> 1 ~.

. .f.[

a l

.f g

i

.  ;* ; i

( ~;- . '3_

i-

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..

I k

1 J i

~ ~

Impact of 300 g Pin Haniner

~

4F6H Results 4

t l

i a

- _. - , , . _ . . . _ . - . , , . . .o ,_ , _ - - - , ,,

i. _ .._ _ _ __. _ .._ _ _ .

- - . _ _ _ - - - - _ - - - - - - - - - -l l l.

l 85-2.103 31 Aug 1982 t

,7 l g' . s , .-

  • ~

Af -t.:.. ..

3.- g ._ .

' el .

, -6 J.lg- .

. . . - :z . .

t 7. - ~., . s;~ . - \

,:  ;,4 .o

% ;y .-

s. .f .

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4

. b' i .

~ --

4F6P Results 4F6S Results l

i i

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i i 9 l 4

1 s

A l

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()

85-2.103 31 Aug 1982 7.5 Classes

Model ANSI N.542 - 1977 Class (Puncture) 384G 1 l 3E4G 1

-3E4H I 3FlE 3 4 3FIL 3 3 FIR 3 3F1V 3 3 Flu 3 3FlG 4D6D 6 4D6F 6 (

4D6M 6 4D6P 6 4F6P 6 4P6E 6 4F6H 6  ;

4F65 6 i 4P6M 6 4P6T 6 4F6Y 6 '

4D6L 6 3E4L 1 3E40 1 4P6U 6  ;

4PSD 6

~

i TABLE 5 - Classification Of Sealed Source Performance Tests Class  !

Test 1 2 3 4 5 6 X Puncture No Test 1g 10 g 50 g 300 g 1 kg Special  !

(15.4 gr) (154 gr) (1.76 oz) (10.6 oz) (2.2 lb) Test l from 1 m from 1 m from 1 m from 1 m from 1 m l (3.28 f t) 1 l

i l

.t 9 85-2.103 i 8.0

SUMMARY

j 31 Aug 1982 The sources described in this report were reclassified by testing, English  !

to metric conversion and engineering evaluations. In all testing cases no j removable activity was present and no bubble leaks occurred. The following i are tables of ANSI N.542-1977 Performance Test Requirements and of the re-classification classes of the radiation sources produced by Static Control i Systems Division /3M.

TABLE 6 - Classification Of Sealed Source Performance Tests '

Class i

Test i 1 2 3 4 5 6 X

! Temperature No Test -40 C -40*C -40 C -40 C -40 C Special '

(20 Min) (20 Min) (20 Min) (20 Min) (20 Min) Test

+80 C +180 C +400 C +600 C +800*C (1 hr) (1 hr) (1 hr) (1.hr) (1 hr) and and and thermal thermal thermal shock shock shock 400 C to 600*C to 800 C to 20 C 20 C 20*C External Pressure- No Test 25 kN/m2 25 kN/m2 25 kN/m2 25 kN/m2 25 kN/m2 Special abs. abs. to abs. to abs. to abs. to Test (3.6 lbf/ 2 MN/m2 7 MN/m2 70 MN/m2 170 MN/m2  ;

in2) to (290 lbf/ 1015 lbf/ (101531bf (24 6561br atmosphere in2) abs. in2) ebs. /in2) abs. /in2) abs.

Impact No Test 50 g (1.8 200 g 2 kg 5 kg 20 kg Special oz) from l' (7 oz) (4.4 lb) (11-lb) (44 lb) Test 1 m (3.28 from im from im from 1m from 1m ft) and free drop ,

10 times to  ;

a steel '

surface from 1.5m (4.92 ft)

Vibration No Test 30 min 30 min 90 min Not Used Not Used Special 25 to 500 25 to 50 25 to 80 Hz at 5 g Hz at Sg Hz at 1.5 peak amp peak amp mm amp.

and 50 peak to to 90 Hz peak and at 0.635 80 to 2000 mm amp. Hz at 209 peak to peak and 90 to 500 Hz l at 10 g Puncture- No Test 1 g (15.4 10 g 50 g 300 g 1 kg Special ~

gr from (154 gr) (1.76 oz) (10.6 oz) (2.2 10 Test 1m from 1 m from 1 m from 1 m from im (3.28 ft) l I l

)

,; '1, 85-2.103 31 Aug 1982 TABLE-7 ,

l Model ANSI N.542 - 1977 Classification 3B4G 32131 3E4G 32231 v 3E4H 32231 3F1E -- 53343 3Fil 53343

, 3FlR , 53343 3FlV 53343 3 Flu 53343 j

3F1G - -

-45343 4D60 66546 4D6F 66546 406M 66546 4D6P 66546 4F6P 53346 4P6E 66546 4F6H 56546 4F6S 66546 4P6M 66646 4P6T 66546 4F6Y 66646 4D6L 66546 3E4L 32231 J 3E40 32231 4P6U 66646 4P6D 66546 l

i

,:. d 1 i; l%-

/ I\.s)) A

- =

Q 3m CDmFANY CENERAL OFFICES . 2501 HUDSON ROAD . ST. PAUL, MINNESOTA 55119. TEL 7331110 1619 Nuclear Products 13 June 1968 l i

U. S. Atomic Energy Commission Washington, D. C. 20545 Attn: James C. Malero Isotopes Branch Division of Materials Licensing

Subject:

Sr-90 Point Source, 3M Model 3F1R l

Dear Mr. Malero:

1 The purpose of this correspondence is to place on file information pertinent to our Sr-90 source, Model 3F1R. This particular source design is being used by the Ball Bros. Research Corporation in one of their gauging units and is a replacement for our Model 3B1G which has been previously registered.

4 Sources are f abricated according to our drawing A1921-831-832-833, copies of which are attached hereto. The sources would contain maximum loading of 25 mil 11 curies of SrY-90 in the form of 3M Brand Radiating Microspheres. A large amount of information relative to this material has been placed on file with your office and no repeat of this information will be made for the purposes of this letter. 4 To f abricate the sources a'.small amount of Sr-90 microspheres are placed in the inner capsule which is fitted with a 0.002 inch thick stainless steel window gold brazed to the capsule. The inner capsule plug is then pushed into place and the weld is made.

This subassembly is then assembled into the outer capsule unit shown on our drawing B1921-833 A plug is pressed in behind the source and tnis is also welded in place resulting in the assembly shown on our drawing A1921-831. ~

The following information is engraved on the side of the capsule:

XXX mc Sr-90 Serial No.

l The following quality control procedures are done on each unit.

1. Bubble test on inner capsule af ter sealing.

831NJ - E O l t m_I N N E s 0 T A m l N I N G A N D MANUFACTURING cumPANY

~

Ah - Oh j

i s m._ - O 6 '

1619 .

U.S. Atomic Energy Commission Page 2 f 2 Smear test inner capsule before assembly into the outer capsule unit. >

3 Smear test entire assembly at time of manuf acture >

and immediately before shipping to the customer.

All of these tests must be negative, as evidenced by the lack of bubbles in the leak test and presence of less than 0.0005 microcuries of Sr-90 on the smear test.

A great deal of informtion relative to the destructive tests carried out on this type of source has already been submitted to your office. We refer you to information submitted on the registration of various sources in the 3F1 series as well as the information relative to the 3D1G which this source is replacing.

We trust that the information contained herein is sufficient to l permit registration of this source. If there are any questions i please feel free to contact me.

Very truly yours, i

T. N. Lahr i Manager, Pilot Plant ,

3M Nuclear Products i l

l i

)

l

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