ASTM F 104-2002

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Standard Classification System for

Nonmetallic Gasket Materials

1

This standard is issued under the fixed designation F 104; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the Department of Defense.

e1 _{NOTE—Section 8.1.5, Appendix X1.3, and Tables, 2, 3, and 4 were editorially updated in November 2002.}

1. Scope

1.1 This classification system

2

_{provides a means for}

speci-fying or describing pertinent properties of commercial

nonme-tallic gasket materials. Materials composed of asbestos, cork,

cellulose, and other organic or inorganic materials in

combi-nation with various binders or impregnants are included.

Materials normally classified as rubber compounds are not

included, since they are covered in Classification D 2000.

Gasket coatings are not covered, since details thereof are

intended to be given on engineering drawings or in separate

specifications. While the facing materials for laminate

compos-ite gasket materials (LCGM) are included in Classification

System F 104, materials normally classified as LCGM are not

covered since they are included in Classification F 868.

1.2 Since all of the properties that contribute to gasket

performance are not included, use of the classification system

as a basis for selecting materials is limited.

1.3 The values stated in SI units are to be regarded as the

standard. The values given in parentheses are for information

only.

1.4 This standard does not purport to address all of the

safety concerns, if any, associated with its use. It is the

responsibility of the user of this standard to establish

appro-priate safety and health practices and determine the

applica-bility of regulatory limitations prior to use.

2. Referenced Documents

2.1 ASTM Standards:

D 2000 Classification System for Rubber Products in

Auto-motive Applications

2

E 11 Specification for Wire-Cloth Sieves for Testing

Pur-poses

3

F 36 Test Method for Compressibility and Recovery of

Gasket Materials

2

F 37 Test Methods for Sealability of Gasket Materials

2

F 38 Test Methods for Creep Relaxation of a Gasket

Mate-rial

2

F 146 Test Methods for Fluid Resistance of Gasket

Materi-als

2

F 147 Test Method for Flexibility of Non-Metallic Gasket

Materials

2

F 148 Test Method for Binder Durability of Cork

Compo-sition Gasket Materials

2

F 152 Test Methods for Tension Testing of Nonmetallic

Gasket Materials

2

F 433 Practice for Evaluating Thermal Conductivity of

Gasket Materials

2

F 607 Test Method for Adhesion of Gasket Materials to

Metal Surfaces

2

F 868 Classification for Laminated Composite Gasket

Ma-terials

2

G 21 Practice for Determining Resistance of Synthetic

Polymeric Materials to Fungi

4

3. Significance and Use

3.1 This classification is intended to encourage uniformity

in reporting properties; to provide a common language for

communications between suppliers and consumers; to guide

engineers and designers in the test methods commonly used for

commercially available materials; and to be versatile enough to

cover new materials and test methods as they are introduced.

3.2 It is based on the principle that nonmetallic gasket

materials should be described, insofar as is possible, in terms of

specific physical and mechanical characteristics, and that an

infinite number of such descriptions can be formulated by use

of one or more standard statements based on standard tests.

Therefore, users of gasket materials can, by selecting different

combinations of statements, specify different combinations of

properties desired in various parts. Suppliers, likewise, can

report properties available in their respective products.

4. Basis of Classification

4.1 To permit “line call-out” of the descriptions mentioned

in 3.2, this classification system establishes letter or number

1_{This classification is under the jurisdiction of ASTM Committee F03 on}

Gaskets and is the direct responsibility of Subcommittee F03.30 on Classification. Current edition approved Oct. 10, 2002. Published December 2002. Originally issued as F 104 – 68. Last previous edition F 104 – 00.

2_{Annual Book of ASTM Standards, Vol 09.02.}

3_{Annual Book of ASTM Standards, Vol 14.02.} 4_{Annual Book of ASTM Standards, Vol 14.04.}

1

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symbols or both for various performance levels of each

property or characteristic (see Table 1)

5

_.

4.2 In specifying or describing gasket materials, each“ line

call-out” shall include the number of this system (minus date

symbol) followed by the letter “F” and six numerals, for

example: ASTM F 104 (F125400). Since each numeral of the

call-out represents a characteristic (as shown in Table 1), six

numerals are always required. The numeral “0” is used when

the description of any characteristic is not desired. The numeral

“9” is used when the description of any characteristic (or test

related thereto) is specified by some supplement to this

classification system, such as notes on engineering drawings.

4.3 To further specify or describe gasket materials, each

“line call-out” may include one or more suffix letter-numeral

symbols, as listed in Table 2, for example: ASTM F104

(F125400-B2M4). Various levels of definition may be

estab-lished by increasing or decreasing the number of letter-numeral

symbols used in the “line call-out.”

4.4 For convenience, gasket materials are referred to by

Type according to the principal fibrous or particulate

reinforce-ment or other material from which the gasket is made and by

Class according to the manufacturing method, or the common

trade designation. Type numbers correspond with the first

numeral, and class numbers correspond with the second

numeral of the basic six-digit line call-out, as shown in Table

1. N

OTE

1—While this “cell-type” format provides the means for close

characterization and specification of each property and combinations of

properties for a broad range of materials, it is subject to possible

misapplications, since impossible property combinations can be coded if

the user is not familiar with available commercial materials. Table X1.1 of

this classification indicates properties, characteristics, and test methods

that are normally considered applicable to each type of material.

5. Physical and Mechanical Requirements

5.1 Gasket materials identified by this classification shall

have the characteristics or properties indicated by the first six

numerals of the line call-out, within the limits shown in Table

1, and by additional letter-numeral symbols shown in Table 2.

6. Thickness Requirements

6.1 Gasket materials identified by this classification system

shall conform to the thickness tolerances specified in Table 3.

7. Sampling

7.1 Specimens shall be selected from finished gaskets or

sheets of suitable size, whichever is the more practicable. If

sheets are used, they shall, where applicable, be cut squarely

with the grain of the stock, and the grain direction shall be

noted by an arrow. If finished gaskets are used, the dimensions

of sample and any variations from method must be reported.

7.2 For qualification purposes, thickness shall be 0.8 mm

(0.03 in.), except for Type 2, where the qualification thickness

is to be 1.5 to 6.4 mm (0.06 to 0.25 in.), and Type 5 Class 1,

where the qualification thickness is to be 0.4 mm (0.015 in.).

When thicknesses other than those shown above are to be

tested, the specification limits shall be agreed to in writing

between the purchaser and the supplier.

7.3 Sufficient specimens shall be selected to provide a

minimum of three determinations for each test specified. The

average of the determinations shall be considered as the result.

8. Conditioning

8.1 Prior to all applicable tests, specimens shall be

condi-tioned as follows:

8.1.1 When the first numeral of line call-out is “1” (Type 1

materials), specimens shall be conditioned in an oven at 100

6 2°C (212

6 3.6°F) for 1 h and allowed to cool to 21 to 30°C

(70 to 85°F) in a desiccator containing anhydrous calcium

chloride; except when second numeral of line call-out is “3”

(Class 3 materials), the specimens shall be conditioned in an

oven for 4 h at 100

6 2°C (212 6 3.6°F).

8.1.2 When the first numeral of line callout is “2” (Type 2

materials), specimens shall be conditioned at least 46 h in a

controlled-humidity room or in a closed chamber with gentle

mechanical circulation of the air at 21 to 30°C (70 to 85°F) and

50 to 55 % relative humidity.

N

OTE

2—If a mechanical means of maintaining 50 to 55 % relative

humidity is not available, a tray containing a saturated solution of reagent

grade magnesium nitrate, Mg(NO

3

)·6H

2

O, shall be placed in the chamber

to provide the required relative humidity.

8.1.3 When the first numeral of line callout is “3” (Type 3

materials), specimens shall be preconditioned for 4 h at 21 to

30°C (70 to 85°F) in a closed chamber containing anhydrous

calcium chloride as a desiccant. The air in the chamber shall be

circulated by gentle mechanical agitation. Specimens shall then

be transferred immediately to a controlled-humidity room or

closed chamber with gentle mechanical circulation of the air

and conditioned for at least 20 h at 21 to 30°C (70 to 85°F) and

50 to 55 % relative humidity.

8.1.4 When the first numeral of a line callout is “4,” no

conditioning of specimens is necessary.

8.1.5 When the first numeral of a line callout is “5,” “7,” or

“8,” test specimens shall be conditioned in accordance with

8.1.1 (Type 1 materials).

8.1.6 When the first numeral of a line callout is “0” or “9,”

specimens shall be conditioned as in 8.1.3, unless otherwise

specified in supplements to this classification.

8.2 In all cases where testing is conducted outside the area

of specified humidity, specimens shall be removed from the

chamber one at a time just prior to testing.

9. Test Methods

9.1 Thickness:

9.1.1 Measure the specimens with a device actuated by a

dead-weight load. The device shall be capable of reading in

0.02-mm (0.001-in.) or smaller units, and readings shall be

estimated to the nearest 0.002 mm (0.0001 in.). The presser

foot shall be 6.40

6 0.13 mm (0.252 6 0.005 in.) in diameter.

The anvil shall have a diameter not less than that of the presser

foot. The pressure on the sample shall be as specified in Table

4.

5_{IRM 903 is available from R.E. Carrol, Inc. P.O. Box 5806, Trenton, NJ 08638.} The user should be aware that results may differ from results using ASTM Oil No. 3. ASTM Oil No. 3 is no longer commercially available due to potential health risks associated with its use. IRM 903 has been approved by Committee D-11 as a replacement for ASTM Oil No. 3.

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TABLE 1 Basic Physical and Mechanical Characteristics

Basic Six-Digit Number Basic Characteristic

First Numeral “Type” of material (the principal fibrous, particulate, or reinforcement material from which the gasket is made) shall conform to the first numeral of the basic six-digit number, as follows:

0 = not specified 1 = asbestos 2 = cork 3 = cellulose 4 = fluorocarbon polymer 5 = flexible graphite

7 = nonasbestos fiber, tested as Type 1 8 = vermiculite

9 = as specifiedA

Second Numeral Class of material(method of manufacture or common trade designation) shall conform to the second numeral of the basic six-digit number, as follows:

Whenfirst numeral is “0” or “9,” second numeral: 0 = not specified

9 = as specifiedA

1 = compressed sheeter process 2 = beater process

3 = paper and millboard 9 = as specifiedA

Whenfirst numeral is “2,” second numeral: 0 = not specified

1 = cork composition (Class 1) 2 = cork and elastomeric (Class 2) 3 = cork and cellular rubber (Class 3) 9 = as specifiedA

1 = untreated fiber—tag, chipboard, vulcanized fiber, etc. (Class 1) 2 = protein treated (Class 2)

3 = elastomeric treated (Class 3) 4 = thermosetting resin treated (Class 4) 9 = as specifiedA

1 = sheet PTFE

2 = PTFE of expanded structure 3 = PTFE filaments, braided, or woven 4 = PTFE felts

5 = filled PTFE 9 = as specified

1 = homogeneous sheet 2 = laminated sheet 9 = as specifiedA

Third Numeral Compressibility characteristics, determined in accordance with Test Method F 36, shall conform to the percent indicated by the third numeral of the basic six-digit number. (Example: 4 = 15 to 25 %)

0 = not specified 5 = 20 to 30 %

1 = 0 to 10 % 6 = 25 to 40 %

2 = 5 to 15 %* 7 = 30 to 50 %

3 = 10 to 20 % 8 = 40 to 60 %

4 = 15 to 25 % 9 = as specifiedA

* 7 to 17 % for compressed sheeter process

Fourth Numeral Thickness increase when immersed in IRM 903 Oil:5_{determined in accordance with Test Method F 146, shall conform to the percent} indicated by the fourth numeral of the basic six-digit number. (Example: 4 = 15 to 30 %)

0 = not specified 5 = 20 to 40 %

1 = 0 to 15 % 6 = 30 to 50 %

2 = 5 to 20 % 7 = 40 to 60 %

3 = 10 to 25 % 8 = 50 to 70 %

4 = 15 to 30 % 9 = as specifiedA

Fifth Numeral Weight increase when immersed in IRM 903 Oil:5

determined in accordance with Test Method F 146, shall conform to the percent indicated by the fifth numeral of the basic six-digit number. (Example: 4 = 30 % max)

0 = not specified 5 = 40 %, max

1 = 10 %, max 6 = 60 %, max

2 = 15 %, max 7 = 80 %, max

3 = 20 %, max 8 = 100 %, max

4 = 30 %, max 9 = as specifiedA

Sixth Numeral Weight increase when immersed in water:determined in accordance with Test Method F 146, shall conform to the percent indicated by the sixth numeral of the basic six-digit number. See left and below. (Example: 4 = 30 %, max)

0 = not specified 5 = 40 %, max

1 = 10 %, max 6 = 60 %, max

2 = 15 %, max 7 = 80 %, max

3 = 20 %, max 8 = 100 %, max

4 = 30 %, max 9 = as specifiedA

A

On engineering drawings or other supplement to this classification system.

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9.1.2 Take the reading by lowering the presser foot gently

until it is in contact with the specimen. Take a sufficient

number of readings, depending on the size of the specimen, to

provide a reliable average value.

TABLE 2 Supplementary Physical and Mechanical Characteristics

Suffix Symbol Supplementary Characteristics

A9 Sealability characteristics shall be determined in accordance with Test Method F 37. External load, internal pressure, other details of test, and results shall be as specified on engineering drawing or other supplement to this classification.

B1 through B9 Creep relaxation characteristics shall be determined in accordance with Test Method F 38. Loss of stress at end of 24 h shall not exceed the amount indicated by the numeral of the B-symbol.

B1 = 10 % B5 = 30 %

B2 = 15 % B6 = 40 %

B3 = 20 % B7 = 50 %

B4 = 25 % B8 = 60 %

B9 = as specifiedA

D00 through D99 The former ASTM standard F 64, Test Method for Corrosive and Adhesive Effects of Gasket Materials on Metal Surfaces, was discontinued in 1980. The newly established test for adhesion has become Test Method F 607.

E00 through E99 Weight and thickness change after immersion in ASTM Fuel B shall be determined in accordance with Test Method F 146.

Weight increase shall not exceed the standard rating number indicated by the first numeral of the two-digit number of the E-symbol. Thickness increase shall not exceed the standard rating number indicated by the second numeral of the E-symbol.

Weight Increase, % (first numeral)

Thickness Increase, % (second numeral) E0_ = not specified E_0 = not specified

E1_ = 10 E_1 = 0–5 E2_ = 15 E_2 = 0–10 E3_ = 20 E_3 = 0–15 E4_ = 30 E_4 = 5–20 E5_ = 40 E_5 = 10–25 E6_ = 60 E_6 = 15–35 E7_ = 80 E_7 = 25–45 E8_ = 100 E_8 = 30–60 E9_ = as specifiedA E_9 = as specifiedA

H Adhesion characteristics shall be determined in accordance with Test Method F 607. Results shall be as specified on engineering drawing or other supplement to this classification.

K1 through K9 THERMAL CONDUCTIVITY characteristics shall be determined in accordance with Practice F 433 using a temperature of 10062°C (2126

3.6°F). Thek-factor obtained in W/(m·K) (Btu·in./h·ft2

·°F) shall fall within the ranges indicated by the numeral of a K symbol. K1 = 0. to 0.09 (0 to 0.65) K5 = 0.29 to 0.38 (2.00 to 2.65) K2 = 0.07 to 0.17 (0.50 to 1.15) K6 = 0.36 to 0.45 (2.50 to 3.15) K3 = 0.14 to 0.24 (1.00 to 1.65) K7 = 0.43 to 0.53 (3.00 to 3.65) K4 = 0.22 to 0.31 (1.50 to 2.15) K8 = 0.50 to 0.60 (3.50 to 4.15) K9 = as specifiedA

L0000 through L9999 Type 7, Class 1 or Class 2 materials. First fiber constituent indicated by the first numeral of the four-digit number of the L-symbol. Second fiber constituent indicated by thesecond numeral of the four-digit number of the L-symbol. Binder constituent indicated by the third numeral of the four-digit number of the L-symbol.Insert type indicated by the fourth numeral of the four-digit number of the L-symbol.

First Fiber (first numeral) Second Fiber (second numeral) Binder (third numeral) Insert Type (fourth numeral)

L0 = not specified L0 = not specified L0 = not specified L0 = not specified

L1 = Aramid L1 = Aramid L1 = NBR L1 = Carbon Steel

L2 = Glass L2 = Glass L2 = SBR L2 = SS 304

L3 = Carbon L3 = Carbon L3 = CR L3 = SS 316

L4 = Graphite L4 = Graphite L4 = EPDM L4 = Nonmetallic

L5 = Mineral/Inorganic L5 = Mineral/Inorganic L5 = IR L5 = none

L6 = Cellulose L6 = Cellulose L6 = CSM L9 = as specifiedA

L9 = as specifiedA

L7 = none L9 = as specifiedA

L9 = as specifiedA

M1 through M9 Tensile strength characteristics shall be determined in accordance with Test Method F 152 and 9.2. Results in MPa (psi) shall be no less than the value indicated by the numeral of the M-symbol.

M1 = 0.689 (100) M5 = 10.342 (1500)

M2 = 1.724 (250) M6 = 13.790 (2000)

M3 = 3.447 (500) M7 = 20.684 (3000)

M4 = 6.895 (1000) M8 = 27.579 (4000)

M9 = as specifiedA

R Binder Durability characteristics shall be determined in accordance with Test Method F 148. There shall be no evidence of disintegration at conclusion of test.

S9 Volume change characteristics, when immersed in ASTM No. 1 Oil, IRM 903 Oil,5

and ASTM Reference Fuel A, shall be determined in accordance with Test Method F 146. Results shall be as specified on engineering drawing or other supplement to this classification.

T Flexibility characteristics shall be determined in accordance with Test Method F 147. There shall be no evidence of cracks, breaks, or separation at conclusion of test.

W Mildew Resistance shall be determined for visual effects only as described in Sections 9.3 and 9.3.1 of Practice G 21. The only fungus shall be Chaetomium globosum, see Section 6.4.1 of Practice G 21. The test unit from which specimens were taken shall be considered defective if one or more of the specimens tested has a rating higher than 0. Specimens taken from gaskets and strips shall be 2 in. long and the approximate width of the material undergoing testing.

Z Other characteristics shall be as specified on engineering drawing or other supplement to this classification. A

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9.2 Other Types of Materials (as indicated by 0 or 9 first

numeral of basic six-digit number)—Use the same apparatus

and general procedure outlined for Type 3 materials, unless

otherwise specified in the engineering drawing or other

supple-ment to this classification.

10. Keywords

10.1 classification; description; gasket; line call-out;

non-metallic gasket; physical and mechanical properties;

specifica-tion; testing

APPENDIX

(Nonmandatory Information)

X1. APPLICABLE TEST METHODS

X1.1 Table X1.1 indicates properties, characteristics, and

test methods that are normally considered applicable to each

type of material. It is not intended to limit the use of

numeral-symbols as provided in Classification System F 104

where experience indicates that the related properties,

charac-teristics, or test methods, or all, are applicable.

X1.2

Table X1.2 is being provided to offer an explanation

of the system of identification of gasket materials previously

used in Specifications D 1170 which has been superseded by

Classification System F 104.

X1.3 Tables X1.3-X1.5 are also retained in this Appendix to

provide

a

reference

for

converting

formerly

used

P-identification numbers into the present Classification System

F 104. These conversions are shown in Tables X1.6-X1.8.

TABLE 3 Thickness Tolerances

Type and Class of Material (First Two Numerals of Basic

Six-Digit Number)

Thickness Specified, mm (in.) Applicable Tolerance,A

mm (in.)

11, 12, 71 and 72 0.41 (0.016) and under +0.13 (+0.005)

−0.05 (−0.002) over 0.41 (0.016) and under 1.57 (0.062)

1.57 (0.062) and over 60.13(60.005) 60.20(60.008) 13 up to 3.18 (0.125) 3.18 (0.125) to 12.70 (0.500) 60.13 (60.005) 60.25 (60.010) 21 all thicknesses 610 %, or60.25 (60.010)

whichever is the greater

22 under 1.57 (0.062)

1.57 (0.062) and over

60.25 (60.010)

60.38 (60.015)

23 1.57 (0.062) and over 60.38 (60.015)

31, 32, and 33 (also 00 0.41 (0.016) and under 60.089 (60.0035)

and 99)B _{over 0.41 (0.016) to 1.57 (0.062)} ₆_{0.13 (}₆_0.005)

over 1.57 (0.062) to 2.39 (0.094) 60.20 (60.008)

over 2.39 (0.094) 60.41 (60.016)

51 and 81 1.6 (0.062) and under 60.051 (60.002)

52 and 82 12.7 (0.5) and under 610 %

A

Tolerances listed are permissible variations applicable to a given lot of sheets or gaskets. Where other thickness tolerances are necessary due to the gasket application, tolerances applicable to individual sheet or gasket may be agreed to in writing between the purchaser and the supplier.

B

Unless otherwise specified on engineering drawing or other supplement to this classification.

TABLE 4 Thickness Measurement Stresses and Forces Type of Material of First Numeral of Six-Digit Number Pressure on Sample, kPa (psi) Total Force on Pressor Foot, N (oz) (reference) 1 and 7 80.366.9 (11.561.0) 2.50 (9.0) 2 3566.9 (5.161.0) 1.11 (4.0) 3 5566.9 (8.061.0) 1.75 (6.3) 0 and 9A 5566.9 (8.061.0) 1.75 (6.3) 5 and 8 80.366.9 (11.561.0) 2.50 (9.0)

A_{Unless otherwise specified on engineering drawing or other supplement to this} classification.

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TABLE X1.1 Typical Types of Materials

N

OTE

1—“X” indicates that the test conditions shown in first column have been used to characterize the type of material named in column heading.“

Dash” (—) indicates that the test method is either “not applicable” to the material named or has not been commonly used in characterizing the material.

Properties, Characteristics, and Test Methods

Type 1, Asbestos or Other

Inorganic Fibers Type 2, Cork

Type 3, Cellulose or Other Organic Fibers

Type 5, Flexible Graphite Com-pressed Asbestos Beater Addition Asbestos Asbestos Paper and Millboard Cork Composi-tion Cork and Elasto-meric Cork and Cellular Rubber Un-treated Fiber Treated Protein Treated Elasto-meric Homoge-neous Sheet Lami-nated Sheet Compressibility:

5000-psi load (Test Method F 36, Procedure A) X X — — — — — — — X X

100-psi load (Test Method F 36, Procedure F) — — — X — X — — — — —

1000-psi load (Test Method F 36, Procedure H) — — X — — — — — — — —

(Test Method F 36, Procedure G) — — — — — — X X X — —

400-psi load (Test Method F 36, Procedure B) — — — — X — — — — — —

Tensile strength X X X X X X X X X X X

Resistance to exposure in ASTM No. 3 Oil:5

Volume change, 70 h at 212°F — — — — X X — — — — —

Weight increase, 22 h at 70 to 85°F — — — — — — X X X — —

Thickness increase: 22 h at 70 to 85°F — — — — — — X X X — —

5 h at 300°F X X — — — — — — — — —

Resistance to exposure in ASTM Fuel B:

Weight increase: 22 h at 70 to 85°F — — — — — — X X X — —

5 h at 70 to 85°F X X — — — — — — — — —

Thickness change: 22 h at 70 to 85°F — — — — — — X X X — —

5 h at 70 to 85°F X X — — — — — — — — —

Resistance to exposure in ASTM No. 1 Oil:

Volume change, 70 h at 212°F — — — — X X X — — — —

Resistance to exposure in ASTM Fuel A:

Volume change, 22 h at 70 to 85°F — — — — X X X — — — —

Resistance to exposure in distilled water:

Weight increase, 22 h at 70 to 85°F — — — — — — X X X — — Thickness change, 22 h at 70 to 85°F — — — — — — X X X — — Sealability X X X X X X X X X X X Creep relaxation X X — — — — — — — X X Adhesion X X X X X X X X X X X Binder Durability — — — X — — — — — — — Flexibility Thermal Conductivity — X — X — X X X X X X X — X — X — X X X X X Mildew Resistance — — — X — — — — — — —

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TABLE X1.2 System of Identification

Digit Type 1 Type 2 Type 3

First Digit (principal fibrous or particulate material)

1. Asbestos or other inorganic fibers

2. Cork 3. Cellulose or other organic fibers

Second Digit (trade designation) 1. Compressed asbestos sheet 1. Cork composition 0. Tag

2. Asbestos beater sheet 2. Cork and rubber 1. Chipboard

3. Asbestos paper and millboard 3. Cork and cellular rubber 2. Vulcanized fiber 3. Cellulose fiber

4. Fiber and filler compositions Third Digit (binder or treatment

other

(Same for all three types)

than sizing) 0. None

1. Protein (glue-glycerin or equivalent) 2. Resin

3. Rubber, Type S, Class A (polysulfide or equivalent) 4. Rubber, Type S, Class SB (acrylonitrile or equivalent) 5. Rubber, Type S, Class SC (chloroprene or equivalent) 6. Rubber, Type R (natural, reclaim, styrene, or equivalent) Fourth Digit (compressibility index, (Same for all three types)

Test Method F 36, Procedure G, total

0. 0 to 5 %

load—1000 psi). 1. 6 to 15 %

For identification purposes only. 2. 16 to 25 % May not agree with

compressibility

3. 26 to 35 % in tables where other loads are

em-4. 36 to 45 % ployed. 5. 46 to 55 % 6. 56 to 65 % 7. 66 to 75 % 8. 76 to 85 % 9. 86 to 95 %

Suffix Letter Used to distinguish grades of material within one 4-digit category which differ sufficiently to justify separate tabular values. If only one grade of material is listed in the table, the letter “A” is used. Example: __ Letter indicating a gasket material included in Specification D 1170

__ Cellulose or other organic fibers __ Rope or chemical wood, or both

__ Binder or treatment, rubber, Type S, Class SC __ Compressibility index is 26 to 35 % __ Grade p 3 3 5 3 A

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TABLE X1.3 Type 1—Asbestos or Other Inorganic Fibers Identifica-tion No.A Former “G” No. (for refer-ence only)

Original Properties Properties after Immersion in Liquids

Compressibility Tensile Strength, min, psi Igni-tion Loss, max, % After Aging 5 h at 15062°C (30063.6°F) in ASTM Oil No. 35

After Aging 5 h at 21 to 30°C (70 to 85°F) in ASTM Reference Fuel B Total Load, psi Com- pressibil-ity, % Recov-ery, min, % Compress-ibility max, % Loss in Tensile Strength, max, % Thickness In-crease, % Weight Increase, max, % Thickness In-crease, % P1141A 1122-1 5000 7 to 17 40 2000 ... 20 30 0 to 13 20 0 to 15 P1151A 1123-1 5000 7 to 17 40 2000 ... 30 50 15 to 30 30 10 to 25 P1161A 1111-1 5000 7 to 17 40 2000 ... ... 70 20 to 50 40 15 to 35 P1161B ... 5000 7 to 17 40 2000 ... ... 80 40 to 70 50 25 to 45 P1162A 1111-2 5000 15 to 25 30 1600 ... ... 70 20 to 50 40 15 to 35 P1241C ... 5000 13 to 23 35 1000 ... 30 35 5 to 20 30 0 to 15 P1242C ... 5000 30 to 40 30 1700 ... 45 15 0 to 20 50 0 to 15 P1242D ... 5000 20 to 30 35 2000 ... 35 20 0 to 20 40 0 to 15 P1243A 1422-2 5000 35 to 50 15 500 ... 55 25 0 to 5 50 0 to 5 P1251A 1423-1 5000 10 to 20 40 2000 ... 35 40 10 to 20 35 0 to 15 P1252A 1423-2 5000 20 to 30 35 1000 ... ... 60 20 to 35 50 5 to 20 P1252D ... 5000 30 to 40 35 1200 ... 45 30 10 to 25 50 5 to 20 P1252E ... 5000 20 to 30 35 1200 ... 40 40 10 to 25 45 5 to 20 P1253A 1423-3 5000 35 to 50 20 1000 ... ... 50 0 to 15 55 0 to 10 P1261A ... 5000 15 to 30 30 1200 ... ... 60 10 to 25 60 5 to 20 P1262B ... 5000 25 to 40 35 1000 ... ... 80 10 to 40 70 0 to 30 P1301A 4131 1000 6 to 15 40 200 20 ... ... ... ... ... P1302A 4111 1000 16 to 25 30 175 20 ... ... ... ... ... A_{Thickness tolerances:} Thickness Tolerance

P1100 and P1200 Series 1_⁄₆₄_{in. and under} _{+0.005 in.}

−0.002 in. Over1_⁄64in. and under1_⁄16in.

1_⁄₁₆_{in. and over}

60.005 in. 60.008 in. P1301 610 % P1302 A Up to1_⁄₈_in. 1_⁄8to1_⁄2in. 60.005 in. 60.010 in.

A_{The above thickness tolerances are permissible variations applicable to a given lot of sheets or gaskets. Where special thickness tolerances are necessary due to} application, the tolerance on the individual sheet or gasket shall be agreed to in writing between the purchaser and the supplier.

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TABLE X1.4 Type 2—CorkA Identification No.B Former “G” No. (for reference only)

Original Properties Properties after Immersion or Aging

Compressibility Tensile Strength, min, psi Density, min, lb/ft3 Flotation TestsC Flexibility Factor,F After Oven Aging, 70 h at 10062°C (21263.6°F) After Aging 70 h at 10062°C (21263.6°F) in ASTM Oil No.1 After Aging 70 h at 10062°C (21263.6°F) in ASTM Oil No. 35 After Aging 22 h at 21 to 30°C (70 to 85°F) in ASTM Reference Fuel A Total Load, psi Compress-ibility, % Recovery, min, % 3 h in Boiling Water 1_⁄2h in Boiling 35 % HCl 2 h at 10062°C (21263.6°F) in ASTM Oil No. 1 Flexibility Factor,F Flexibility Factor, F Volume Change, % Volume Change, % Volume Change, % Cork Composition P2116A 2114 100 10 to 25 60 175 24 N ... N 5 ... ... ... ... ... P2117A 2113 100 15 to 30 65 150 20 N ... N 5 ... ... ... ... ... P2117B 2112 100 20 to 40 75 100 17 N ... N 5 ... ... ... ... ... P2118A 2111 100 30 to 50 80 75 14 N ... N 5 ... ... ... ... ... P2126A 2214 100 10 to 25 60 175 24 N N N 5 ... ... ... ... ... P2127A 2213 100 15 to 30 65 150 20 N N N 5 ... ... ... ... ... P2127B 2212 100 20 to 40 75 100 17 N N N 5 ... ... ... ... ... P2128A 2211 100 30 to 50 80 75 14 N N N 5 ... ... ... ... ...

Cork and Rubber

P2236A 1221-3 400 25 to 45 75 200 ... ... ... ... 5 16 16 −5 to +5 0 to +10 −5 to +5 P2243A 1222-2 400 15 to 25 75 250 ... ... ... ... 5 16 16 −5 to +10 −2 to +15 −2 to +10 P2245A 1222-3 400 25 to 35 75 250 ... ... ... ... 5 16 16 −5 to +10 −2 to +15 −2 to +10 P2245B ... 400 40 to 55 70 150 ... ... ... ... 5 16 16 −15 to +15 0 to +25 −5 to +15 P2246A 1222-4 400 35 to 45 75 200 ... ... ... ... 5 16 16 −5 to +10 −2 to +15 −2 to +10 P2254A 1223-2 400 15 to 25 75 250 ... ... ... ... 5 16 16 −2 to +20 +15 to +50 0 to +15 P2255A 1223-3 400 25 to 35 75 250 ... ... ... ... 5 16 16 −2 to +20 +15 to +50 0 to +15 P2255B ... 400 40 to 55 75 125 ... ... ... ... 5 16 16 −10 to +5 +15 to +50 0 to +35 P2256A 1223-4 400 35 to 45 75 220 ... ... ... ... 5 16 16 −2 to +20 +15 to +50 0 to +15 P2265A 1211-3 400 25 to 45 75 150 ... ... ... ... 5 16 ... ... ... ... P2268A 1211-5 400 40 to 60 75 75 ... ... ... ... 5 16 ... ... ... ...

Cork and Cellular Rubber

P2347A ... 100 35 to 50 75 100 ... ... ... ... 5 16 ... −20 to −5 −10 to +5 −10 to +5

P2357A ... 100 35 to 50 75 75 ... ... ... ... 5 16 ... −10 to +10 +15 to +50 0 to +25

P2367A ... 100 35 to 50 75 100 ... ... ... ... 5 16 ... ... ... ...

A

Grain size may be specified for certain applications. If so, the following will usually apply: Fine—will pass a No. 20 sieve and will be retained on a No. 40 sieve; Medium—will pass a No. 10 sieve and will be retained on a No. 20 sieve; Coarse—will pass a No. 5 sieve and will be retained on a No. 10 sieve. Sieve sizes are as specified in Table 1 of Specification E 11.

B_{Thickness tolerances:}

P2100 series—610 % or60.010 in., whichever is the greater; P2200 series—under1_⁄₁₆_in.,₆_{0.010 in.;}1_⁄₁₆_{in. and over,}₆_{0.015 in.} P2300 series—1_⁄₁₆_{in. (minimum thickness) and over}₆_{0.015 in.}

C_{N = No disintegration.}

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TABLE X1.5 Type 3—Cellulose or Other Organic Fibers Identification No.A Former “G” No. (for reference only)

Original Properties Properties after Immersion in Liquids for 22 h at 21 to

30°C (70 to 85°F) Compressibility Tensile Strength min, psi ASTM Reference

Fuel B ASTM Oil No. 3

5 Distilled Water Total Load, psi Compressibility, % Recovery, min, % Thickness Increase, max, % Weight Increase, max, % Thickness Increase, max, % Weight Increase, max % Thickness Increase, max, % Weight Increase, max, % P3002A 3111 1000 10 to 25 50 1500 ... ... ... ... ... ... P3102A 3141 1000 20 to 30 45 750 ... ... ... ... ... ... P3200A 3261 to 3262 1000 0 to 10 70 6000 ... ... ... ... ... ... P3301A 3151 1000 5 to 15 60 3000 ... ... ... ... ... ... P3302C ... 1000 15 to 30 40 1500 ... ... ... ... ... ... P3313B 3212 1000 25 to 40 40 2000 5 15 5 15 30 90 P3341A ... 1000 5 to 15 50 4000 5 10 5 15 90 80 P3341D ... 1000 6 to 16 55 3000 12 35 5 35 40 40 P3342C ... 1000 16 to 26 45 3500 20 35 5 20 20 30 P3342F ... 1000 17 to 27 40 1800 30 80 30 80 50 80 P3342G ... 1000 20 to 30 35 1500 10 50 10 50 35 70 P3345A 3232-6 1000 40 to 60 20 500 5 80 10 80 25 65 P3353A ... 1000 25 to 40 25 1500 12 80 12 90 30 75 P3353B ... 1000 20 to 35 40 2000 15 50 15 55 40 50 P3354A 3233-5A 1000 30 to 50 30 800 15 80 15 90 25 65 P3361A 3234-2 1000 5 to 15 40 2000 10 25 10 20 30 25 P3362A 3234-3 1000 15 to 30 40 2000 15 45 15 60 40 50 P3365A 3234-6B 1000 40 to 60 20 500 5 95 5 120 20 70 P3413A 3221 1000 25 to 45 40 1500 5 15 5 15 15 85 P3415A 3222 1000 40 to 55 40 1000 5 30 5 30 30 100 P3421A 3223 1000 10 to 20 50 1500 20 35 5 25 15 30 P3423A ... 1000 25 to 35 50 1000 20 50 5 30 5 20 P3441A ... 1000 5 to 15 45 2200 20 30 20 30 30 30 P3442A ... 1000 10 to 20 35 2500 15 30 0 30 40 60 P3443B ... 1000 25 to 35 55 1100 25 65 0 50 15 25 P3443C ... 1000 25 to 35 40 1200 10 65 0 70 35 50 P3444A 3242-3 1000 30 to 45 25 800 10 75 0 70 20 55 P3464A 3243-3 1000 30 to 45 30 700 30 100 30 105 20 70 A Thickness tolerances: Thickness Tolerance

1_⁄64in. and under 60.0035 in.

Over1_⁄64in. to1_⁄16in. 60.005 in.

Over1_⁄₁₆_{in. to}3_⁄₃₂_in. ₆_{0.008 in.}

Over3_⁄₃₂_in. ₆_{0.016 in.}

The above thickness tolerances are permissible variations applicable to a given lot of sheets or gaskets. Where special thickness tolerances are necessary due to application, the tolerance on the individual sheet or gasket shall be agreed to in writing between the purchaser and the supplier.

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TABLE X1.6 F-Identification Numbers for Type 1 Gasket Material

P-Number Former “G”

Number

Substitute F-Numbers in accordance with ASTM F 104

P1141A 1122-1 F 1 1 2 1 0 0 E 3 3 M 6 ... P1151A 1123-1 F 1 1 2 4 0 0 E 4 5 M 6 ... P1161A 1111-1 F 1 1 2 6 0 0 E 5 6 M 6 ... P1161B ... F 1 1 2 7 0 0 E 6 7 M 6 ... P1162A 1111-2 F 1 1 4 6 0 0 E 5 6 M 5 ... P1241A ... F 1 2 3 2 0 0 E 4 3 M 4 ... P1241B ... F 1 2 4 2 0 0 E 4 2 M 4 ... P1241C ... F 1 2 4 2 0 0 E 4 3 M 4 ... P1242A ... F 1 2 6 2 0 0 E 5 2 M 5 ... P1242C ... F 1 2 6 2 0 0 E 6 3 M 4 ... P1242D ... F 1 2 5 2 0 0 E 5 3 M 6 ... P1243A 1422-2 F 1 2 7 2 0 0 E 6 1 M 3 ... P1251A 1423-1 F 1 2 3 2 0 0 E 4 3 M 6 ... P1252A 1423-2 F 1 2 5 5 0 0 E 6 4 M 4 ... P1252D ... F 1 2 6 3 0 0 E 6 4 M 5 ... P1252E ... F 1 2 5 3 0 0 E 5 4 M 5 ... P1253A 1423-3 F 1 2 7 1 0 0 E 6 3 M 4 ... P1261A ... F 1 2 4 3 0 0 E 6 2 M 4 ... P1262B ... F 1 2 6 5 0 0 E 7 3 M 4 ... P1301A 4131 F 1 3 2 0 0 0 E 0 0 M 1 Z P1302A 4111 F 1 3 4 0 0 0 E 0 0 M 1 Z

Number

Sustitute F-Numbers in accordance with ASTM F 104

P2116A 2114 F 2 1 3 0 0 0 M 2 R ... P2117A 2113 F 2 1 4 0 0 0 M 2 R ... P2117B 2112 F 2 1 5 0 0 0 M 1 R ... P2118A 2111 F 2 1 7 0 0 0 M 1 R ... P2126A 2214 F 2 1 3 0 0 0 M 2 R ... P2127A 2213 F 2 1 4 0 0 0 M 1 R ... P2127B 2212 F 2 1 5 0 0 0 M 1 R ... P2128A 2211 F 2 1 7 0 0 0 M 1 R ... P2236A 1221–3 F 2 2 6 0 0 0 M 2 S 9 P2243A 1222–2 F 2 2 4 0 0 0 M 2 S 9 P2245A 1222–3 F 2 2 6 0 0 0 M 2 S 9 P2245B ... F 2 2 8 0 0 0 M 2 S 9 P2246A 1222–4 F 2 2 7 0 0 0 M 2 S 9 P2254A 1223–2 F 2 2 4 0 0 0 M 2 S 9 P2255A 1223-3 F 2 2 6 0 0 0 M 2 S 9 P2255B ... F 2 2 8 0 0 0 M 1 S 9 P2256A 1223–4 F 2 2 7 0 0 0 M 2 S 9 P2265A 1211–3 F 2 2 6 0 0 0 M 1 S 9 P2268A 1211–5 F 2 2 8 0 0 0 M 1 S 9 P2347A ... F 2 3 7 0 0 0 M 1 S 9 P2357A ... F 2 3 7 0 0 0 M 1 S 9 P2367A ... F 2 3 7 0 0 0 M 1 S 9

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Number

Substitute F-Number in accordance with F 104

P3002A 3111 F 3 1 3 0 0 0 M 5 P3102A 3141 F 3 1 5 0 0 0 M 3 P3200A 3261 & 3262 F 3 1 1 0 0 0 M 9 P3301A 3151 F 3 1 2 0 0 0 M 7 P3302C 3122 F 3 1 4 0 0 0 M 5 P3313B 3212 F 3 2 6 1 2 8 M 6 P341A ... F 3 3 2 1 2 8 M 8 P3341D ... F 3 3 2 1 5 5 M 7 P3342C ... F 3 3 4 1 3 4 M 7 P3342F ... F 3 3 4 4 7 7 M 5 P3342G 3232–3 F 3 3 5 1 6 7 M 5 P3345A 3232–6 F 3 3 8 1 7 6 M 3 P3353A ... F 3 3 7 5 7 7 M 5 P3353B ... F 3 3 7 5 7 6 M 6 P3354A 3233–5A F 3 3 5 1 7 6 M 3 P3361A 3234–2 F 3 3 2 1 3 3 M 6 P3362A 3234–3 F 3 3 5 1 6 6 M 6 P3365A 3234–6B F 3 3 8 1 9 7 M 3 P3413A 3221 F 3 2 6 1 2 7 M 5 P3415A 3222 F 3 2 8 1 4 8 M 4 P3421A 3223 F 3 9 3 1 4 4 M 5 P3423A ... F 3 9 6 1 4 3 M 4 P3441A ... F 3 3 2 2 4 4 M 6 P3442A ... F 3 3 3 1 4 6 M 7 P3443B 3242–2 F 3 3 6 1 6 4 M 4 P3443C ... F 3 3 6 1 7 6 M 4 P3444A 3242–3 F 3 3 7 1 7 6 M 3 P3464A 3243–3 F 3 3 7 4 9 7 M 3