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Designation: D3935 − 15

Standard Classification System and Basis for Specification for Polycarbonate (PC) Unfilled and Reinforced Material1

This standard is issued under the fixed designation D3935; 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 (´) indicates an editorial change since the last revision or reapproval.

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

1. Scope*

1.1 This classification system covers unfilled and reinforced polycarbonate and polycarbonate copolymer materials suitable for injection molding, blow molding, and extrusion. Some of these compositions may also find use for compression molding or application from solution. This classification system allows for the use of recycled materials provided that all specification requirements are met.

1.2 The properties in this classification system are those

required for identifying the compositions covered. Other re-quirements necessary for identifying particular characteristics important to specific applications are normally specified by using the suffixes in accordance with Section 5.

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

standard. No other units of measurement are included in this standard.

1.4 This classification system and subsequent line callout

(specification) are intended to provide a means of calling out plastic materials used in the fabrication of end items or parts.

It is not intended for the selection of materials. Material selection should be made by those having expertise in the plastic field only after consideration of the design and the performance required of the part, the environment to which it will be exposed, the fabrication process to be employed, the costs involved, and the inherent properties of the material other than those covered in this standard.

NOTE 1—This classification system and ISO 7391-1 and ISO 7391-2 address the same subject matter, but differ in technical content.

1.5 The following precautionary caveat pertains only to the

test methods portion, Section 12, of this classification system.

This standard does not purport to address all safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability or regulatory limita-tions prior to use.

2. Referenced Documents

2.1 ASTM Standards:2

D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics

D638 Test Method for Tensile Properties of Plastics D648 Test Method for Deflection Temperature of Plastics

Under Flexural Load in the Edgewise Position D790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materi-als

D792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by Displacement

D883 Terminology Relating to Plastics D1238 Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer D1600 Terminology for Abbreviated Terms Relating to Plas-tics D2584 Test Method for Ignition Loss of Cured Reinforced

Resins D3892 Practice for Packaging/Packing of Plastics D4000 Classification System for Specifying Plastic Materi-als D5630 Test Method for Ash Content in Plastics D7209 Guide for Waste Reduction, Resource Recovery, and

Use of Recycled Polymeric Materials and Products (With-drawn 2015)3

E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E169 Practices for General Techniques of Ultraviolet-Visible Quantitative Analysis

2.2 ISO Standard:4

ISO 7391-1 Plastics—Polycarbonate Molding and Extrusion Materials (Part 1: Designation—2006)

ISO 7391-2 Plastics—Polycarbonate Molding and Extrusion

1 This standard is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materi-als.

Current edition approved May 15, 2015. Published June 2015. Originally approved in 1980. Last previous edition approved in 2009 as D3935 - 09. DOI:

10.1520/D3935-15.

2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.

3 The last approved version of this historical standard is referenced on www.astm.org.

4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.

*A Summary of Changes section appears at the end of this standard

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Materials (Part 2: Preparation of Test Specimens and Determination of Properties)

3. Terminology

3.1 Definitions—The terminology used in this classification

system is in accordance with Terminologies D883 and D1600.

The polycarbonate materials are to be designated PC as specified in Terminology D1600.

4. Classification

4.1 Unfilled polycarbonate materials are classified into

groups according to their composition. These groups are subdivided into classes and grades as shown in Table PC

TABLE 1 PC Polycarbonate Materials and Detail Requirements

NOTE 1— The values are for naturals; colors may be different.

Group Description Class Description Grade DescriptionA

Flow Rate,B Test Method

D1238, g/10 min

Specific Gravity, Test

Method D792

Izod Impact,C

Test Methods

D256, J/m, min

Tensile Yield

StressD

Elongation at

BreakD

Flexural Modulus,E

Test Methods

D790, MPa, min

Deflection Tempera-ture, Test Method D648,F °C, min

Test Method D638, MPa, min

Test Method D638, %, min

01 PC 1 general purpose 1 >24 1.19–1.22 Use Table B to define these properties.

2 15 to 30 1.19–1.22 Use Table B to define these properties.

3 12 to 20 1.19–1.22 640 55 100 2000 126 4 9 to 18 1.19–1.22 750 60 105 2100 126 5 6 to 13 1.19–1.22 750 60 110 2200 128 6 4 to 8 1.19–1.22 750 60 110 2200 128 7 <5 1.19–1.22 780 60 110 2200 130 0 other

2 flame-retardedG 1 >24 1.19–1.22 Use Table B to define these properties.

2 15 to 30 1.19–1.22 Use Table B to define these properties.

3 12 to 20 1.19–1.22 640 55 100 2000 126 4 9 to 18 1.19–1.22 640 60 100 2100 126 5 6 to 13 1.19–1.22 640 60 105 2200 128 6 4 to 8 1.19–1.22 640 60 110 2200 128 7 <5 1.19–1.22 640 60 110 2200 130 0 other

3 UVH stabilized 1 >24 1.19–1.22 Use Table B to define these properties.

2 15 to 30 1.19–1.22 Use Table B to define these properties.

3 12 to 20 1.19–1.22 640 55 100 2000 124 4 9 to 18 1.19–1.22 750 60 105 2100 124 5 6 to 13 1.19–1.22 750 60 110 2100 126 6 4 to 8 1.19–1.22 750 60 110 2200 126 7 <5 1.19–1.22 750 60 110 2200 128 0 other

4 impact-modified 1 0 other

6 to 15

1.18–1.22

375I

5 FDAJ compliant formulations

1 >24 1.19–1.22 Use Table B to define these properties.

2 15 to 30 1.19–1.22 Use Table B to define these properties.

3 12 to 20 1.19–1.22 640 55 100 2000 126 4 9 to 18 1.19–1.22 750 60 105 2100 126 5 6 to 13 1.19–1.22 750 60 110 2200 128 6 4 to 8 1.19–1.22 750 60 110 2200 128 7 <5 1.19–1.22 780 60 110 2200 130 0 other

0 other 0 other 02 PC copolymer-flame retarded 1 general purpose 1 >24 1.22–1.26 Use Table B to define these properties.

2 15 to 30 1.22–1.26 Use Table B to define these properties.

3 12 to 20 1.22–1.26 80 60 100 2100 128 4 9 to 18 1.22–1.26 80 60 110 2200 128 5 6 to 13 1.22–1.26 90 60 110 2200 130 6 4 to 8 1.22–1.26 90 60 110 2200 130 7 <5 1.22–1.26 90 60 110 2200 132 0 other

2 UVH stabilized 1 >24 1.22–1.26 Use Table B to define these properties.

2 15 to 30 1.22–1.26 Use Table B to define these properties.

3 12 to 20 1.22–1.26 80 60 100 2100 126 4 9 to 18 1.22–1.26 80 60 110 2200 126 5 6 to 13 1.22–1.26 90 60 110 2200 128 6 4 to 8 1.22–1.26 90 60 110 2200 130 7 <5 1.22–1.26 90 60 110 2200 130 0 other

0 other 0 other

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TABLE 1 Continued

NOTE 1— The values are for naturals; colors may be different.

Group Description Class Description Grade DescriptionA

Flow Rate,B Test Method

D1238, g/10 min

Specific Gravity, Test

Method D792

Izod Impact,C

Test Methods

D256, J/m, min

Tensile Yield

StressD

Elongation at

BreakD

Flexural Modulus,E

Test Methods

D790, MPa, min

Deflection Tempera-ture, Test Method D648,F °C, min

Test Method D638, MPa, min

Test Method D638, %, min

03 PC copolymer high-heat resin

1 general purpose 1 0 other

TBD

1.18–1.22

2 UVH stabilized 1 0 other

TBD

1.18–1.22

3 impact-modified 1 TBD Use Table B to define these properties.

0 other

4 FDAJ compliant formulation

0 other

TBD

1.18–1.22

0 other 0 other 04 PC copolymer homopolymer intermediate heat blends

1 general purpose 1 0 other

TBD

1.18–1.22

2 UVH stabilized 1 0 other

TBD

1.18–1.22

3 impact-modified 1 TBD Use Table B to define these properties.

0 other

4 FDAJ compliant formulation

0 other

TBD

1.18–1.22

0 other 0 other 05 PC copolymer low-heat stan-dard flow

1 general purpose 1 >50 1.18–1.22 Use Table B to define these properties.

2 nominal 45 1.18–1.22 570 50 100 2070 104 3 nominal 29 1.18–1.22 620 50 100 2070 106 4 nominal 18 1.18–1.22 770 50 100 2160 107 5 nominal 10 1.18–1.22 810 50 100 2200 108 0 other

2 UVH stabilized 1 >50 1.18–1.22 Use Table B to define these properties.

2 nominal 45 1.18–1.22 570 50 100 2070 102 3 nominal 29 1.18–1.22 620 50 100 2070 104 4 nominal 18 1.18–1.22 770 50 100 2160 105 5 nominal 10 1.18–1.22 810 50 100 2200 106 0 other

3 impact-modified 0 other 4 FDAJ compliant formulations 1 >50 1.18–1.22 Use Table B to define these properties.

2 nominal 45 1.18–1.22 570 50 100 2070 104 3 nominal 29 1.18–1.22 620 50 100 2070 106 4 nominal 18 1.18–1.22 770 50 100 2160 107 5 nominal 10 1.18–1.22 810 50 100 2200 108 0 other

5 flame-retardedG 1 TBD 1.18–1.22 Use Table B to define these properties.

0 other

0 other 0 other 06 PC copolymer low-heat easy flow

1 general purpose 1 TBD 1.18–1.22 Use Table B to define these properties.

0 other

2 UV stabilizedH 1 TBD 1.18–1.22 Use Table B to define these properties.

0 other

3 impact-modified 1 TBD 1.17–1.22 See above 0 other

4 FDAJ compliant formulations

1 TBD 1.18–1.22 Use Table B to define these properties.

0 other

5 flame-retardedG 1 TBD 1.18–1.22 Use Table B to define these properties.

0 other

0 other 0 other 99 PC otherI 0 other 0 other

A All grades are listed by performance requirements.

B Use condition 300/1.2 for Groups 01, 02, and 05. Define the conditions for other groups in the suffixes as needed.

C Test specimens are 3.2 mm thick, with a notch radius of 0.25 mm, tested by Method A.

D Test specimens are Type I tensile bars, 3.2 mm thick, tested at a crosshead speed of 50 mm/min.

E Test specimens are 3.2 by 12.7 mm, tested by Method I, Procedure A (Tangent), at a crosshead speed of 1.3 mm/min and a span-to-depth ratio of 16 to 1.

F Test specimens are 3.2 mm thick, tested at 1820 kPa, and are not annealed before testing.

G Use suffix letter F, with the appropriate letters and digits specified in Classification D4000, to define specific requirements.

H Refer to Practices E169 for testing procedure. Specific requirements shall be stated in the purchase order or contract.

I Test specimens for Group 1, Class 4, Grade 1 are 6.4 mm thick with a notch radius of 0.25 mm and are tested by Method A.

J Manufactured in compliance with Food Additive Regulation 21CFR177.1580 governing polycarbonate resins for food-contact applications..

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NOTE 2—An example of this classification system is as follows: the designation PC0214 indicates:

PC = polycarbonate as found in Terminology D1600, 02 = polycarbonate copolymer-flame retarded (group), 1 = general purpose (class), and 4 = requirements given in Table PC.

4.1.1 To facilitate the specification of new, special, or

recycled materials, the “other” category (0) for class or grade, or both, is used as indicated in Table PC. The properties of these materials are specified using Tables A, B, or R as they apply.

4.2 Reinforced, pigmented, filled, and lubricated versions of polycarbonate materials are classified in accordance with Tables PC and A, B, or R. Table PC is used to specify basic materials. Table A or B is used to specify the property requirements after the addition of reinforcement, pigments, fillers, or lubricants at the nominal level indicated (see 4.2.1).

Table R is used for recycled materials.

4.2.1 A single letter is used to indicate the major category of the reinforcement, along with two numbers indicating the nominal percentage of additive(s) by mass, with the tolerances as tabulated as follows:

Category Material Tolerance

(Based on the Total Mass) C carbon and graphite fiber-reinforced ±2 percentage points

G glass-reinforced <15 % glass content ±2 percentage points >15 % glass content ±3 percentage points

L lubricants (such as PTFE, graphite, silicone, and molybdenum disulfide) depends on material and process—to be specified

M mineral-reinforced ±2 percentage points R combination/mixtures of reinforcements or other fillers/ reinforcements

±3 percentage points based on total reinforcement

NOTE 3—If necessary, additional requirements are specified using suffixes, in accordance with Section 5. The ash content of filled or reinforced materials is determined using Test Method D2584 where applicable.

4.2.2 Specific requirements for reinforced, filled, or lubri-cated polycarbonate materials shall be shown by a six-character designation that will consist of the letter A or B and the five digits comprising the cell numbers for the property requirements in the order in which they occur in Table A or B.

4.2.2.1 Although the values listed in Tables A and B are

necessary to include the range of properties available in existing materials, users should not infer that every possible combination of the properties exists or can be obtained.

4.2.3 When the grade of the basic material is not shown, or

is not important, a “0” grade classification shall be used for reinforced materials in this system.

NOTE 4—An example of this classification system for reinforced polycarbonate material is as follows: the designation PC0110G10A22230 indicates:

PC0110 = general-purpose polycarbonate from Table PC, G10 = glass reinforced at nominal 10 % level, A = Table A property requirements, 2 = 60-MPa tensile strength, min, 2 = 3000-MPa flexural modulus, min, 2 = 80-J ⁄ m Izod impact strength, min, 3 = 125°C deflection temperature, min, and 0 = unspecified.

If no properties are specified, the designation is PC0110G10A00000.

4.3 Table B has been incorporated into this classification

system to facilitate the classification of special materials where Table PC or Table A do not reflect the required properties.

Table B shall be used in the same manner as Table A.

NOTE 5—The mechanical properties of polycarbonates can be affected by the amounts and types of additives and colorants used. The most often observed effect is a change in the ductility of the material as evidenced in reductions of up to 90 % in Izod impact strength and 25 % or more in tensile elongation. A classification using Table PC and Table B should be used if properties of pigmented or specially formulated polycarbonates need to be specified.

NOTE 6—An example of the use of this classification system for a special polycarbonate material is as follows: the designation PC0110B34720 indicates:

PC0110 = general-purpose polycarbonate from Table PC, B = Table B property requirements, 3 = 60-MPa tensile strength, min, 4 = 2100-MPa flexural modulus, min, 7 = 640-J ⁄ m Izod impact strength, min, 2 = 105°C deflection temperature, min, and 0 = unspecified.

NOTE 7—The short- and long-term mechanical properties of polycar-bonate materials can be affected adversely by their prior processing as well as end-use exposure to chemicals, weathering, and secondary finishing steps. Efforts to reuse materials may include direct feedback into the system from which they are generated, or they could involve isolation for reuse at other times into other processes or parts. Most manufacturer’s literature contains recommendations regarding direct feedback practices to aid the user in maintaining the properties of the original materials as much as possible. When polycarbonate resins are isolated and reprocessed in conjunction with fillers, additives, colorants, etc., there is a special risk that the properties of the final products may not be equal to those obtained when “virgin” resins are used. While the test specimen properties called out in this classification system may be used to screen these materials, the user should take precautions to ensure that parts made from these materials meet the desired parameters. Group and class designations from Table PC, used in conjunction with Grade Designation 0, allow line callouts to be defined for recycled resins. The group, class, and grades given should be used with the property ranges from Table R, as appropriate. Table R lists two impact and two tensile properties to allow callouts for both filled and unfilled resins. It is intended that only one be used in a given callout and that the unused properties be given an 0, “unspecified,” cell designation.

5. Suffixes

5.1 When requirements not covered by the basic cell tables

need to be specified, suffixes shall be defined in accordance with Classification D4000.

5.2 Requirements specified by suffix references always take

precedence over values from the property or cell tables for the same properties.

6. General Requirements

6.1 The plastic compositions shall be uniform and shall

conform to the requirements herein.

7. Detail Requirements

7.1 Test specimens for the various materials shall conform

to the requirements in accordance with Tables PC, A, B, and R and the suffix requirements, as they apply.

7.2 For the purpose of determining conformance, all speci-

fied limits for a specification (line callout) based on this classification system are absolute limits, as defined in Practice E29.

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7.2.1 With the absolute method, an observed or calculated

value is not rounded but is compared directly with the specified limiting value. Conformance, or lack thereof, is based on this comparison.

TABLE A Reinforced Polycarbonate Materials, Detail Requirements

Designation Order Number

Property Cell Limits

0 1 2 3 4 5 6 7 8 9

1 Tensile strength, Test Method D638, MPa,A min at break unspecified 40 60 80 100 120 140 160 180 B

2 Flexural modulus, Test Methods D790, MPa,C min unspecified 2 100 3 000 4 500 6 000 7 500 9 000 10 500 12 000 B

3 Izod impact, Test Methods D256, Method A, J/m,D min unspecified 58 80 100 120 140 160 180 200 B

4 Deflection temperature under load, Test Method D648, at 1.82 MPa, °C,E min unspecified 105 120 125 140 145 151 157 160 B

5 To be determined unspecified A Test specimens are Type I bars at 3.2-mm thickness, tested at a crosshead speed of 5 mm/min.

B Specific value must be shown.

C Test specimens are 3.2 by 12.7 mm and tested by Method I, Procedure A (tangent), with a crosshead speed of 1.3 mm/min and a span-to-depth ratio of 16 to 1.

D Specimens are 3.2 mm thick with a notch radius of 0.25 mm.

E Test specimens are 3.2 mm thick and are not annealed before testing.

TABLE B Unreinforced Polycarbonate Materials, Detail Requirements

Designation Order Number

Property Cell Limits

0 1 2 3 4 5 6 7 8 9

1 Tensile strength, Test Method D638, MPa,A min at yield unspecified 40 50 60 70 80 90 100 110 B

2 Flexural modulus, Test Methods D790, MPa,C min unspecified 1200 1500 1800 2100 2400 2700 3000 3300 B

3 Izod impact, Test Methods D256, Method A, J/m,D min unspecified 55 105 210 315 420 530 640 750 B

4 Deflection temperature under load, Test Method D648, at 1.82 MPa, °C,E min unspecified 100 105 120 125 130 145 157 160 B

5 To be determined unspecified A Test specimens are Type I bars at 3.2-mm thickness, tested at a crosshead speed of 5 mm/min.

B Specific value must be shown.

C Test specimens are 3.2 by 12.7 mm and tested by Method I, Procedure A (tangent), with a crosshead speed of 1.3 mm/min and a span-to-depth ratio of 16 to 1.

D Specimens are 3.2 mm thick with a notch radius of 0.25 mm.

E Test specimens are 3.2 mm thick and are not annealed before testing.

TABLE R Recycled Polycarbonate Materials, Detail Requirements

Designation Order Number

Property Cell Limits

0 1 2 3 4 5 6 7 8 9

1 Izod impact,A Test Methods D256, Method A, J/m, min unspecified 53 80 105 270 430 535 640 750 B

2 Izod impact,A Test Methods D256, Method E, J min force resulting in “no breaks” unspecified 5 10 15 20 25 30 35 40 B

3 Flexural modulus,C , Test Methods D790, MPa, min Procedure A (tan-gent) at 1.3-mm/min test speed unspecified 1 200 1 800 2 400 3 000 5 000 7 000 10 000 12 000 B

4 Tensile strength at yield,D Test Method D638, MPa, min (use with unreinforced resins at test speed 50 mm/min) unspecified 40 50 60 70 80 90 100 110 B

5 Tensile strength at break,D Test Method D638, MPa, min (use with reinforced resins at test speed 5 mm/ min) unspecified 40 60 80 100 120 140 160 180 B

A Specimens are 3.2 mm thick with a notch radius of 0.25 mm.

B Specific value must be shown.

C Test specimens are 3.2 by 12.7 mm and tested by Method I with a span-to-depth ratio of 16 to 1.

D Test specimens are Type I bars at 3.2-mm thickness.

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8. Sampling

8.1 Sampling shall be statistically adequate to satisfy the

requirements of 13.5. A lot of material shall be considered as a unit of manufacture as prepared for shipment and may consist of a blend of two or more production runs or batches.

9. Number of Tests

9.1 The number of tests shall be consistent with the require-ments of Section 8 and 13.2.

10. Specimen Preparation

10.1 Unless otherwise specified, test specimens for materi-

als classifiable into Groups 01 or 02 shall be prepared by injection molding using the following conditions:

Mold Temperature, °C

Material Melt Temperature, °C

Unfilled and unreinforced

70–95 275–290

(when MFR> 8 g/10 min) (when MFR >8 g/10 min) Unfilled and unreinforced 80–115 290–345

(when MFR <8 g/10 min) (when MFR <8 g/10 min) Filled and reinforced 80–115 300–350

10.1.1 Dry all materials classifiable into Groups 01 and 02

for at least 3 h at 125°C before molding.

10.2 Unless otherwise specified, test specimens for materi-

als classifiable into Groups 03 and 04 shall be prepared by injection molding using the following conditions:

Mold Temperature, °C

Material Melt Temperature, °C

Unfilled and unreinforced

80–100 330–375

Filled and reinforced consult manufacturer for recommended molding conditions

10.2.1 Dry all materials classifiable into Groups 03 and 04

for at least 3 h at 130°C before molding.

10.3 Prepare test specimens for materials not classifiable

into Groups 01, 02, 03, or 04 by injection molding, as prescribed by the manufacturer.

10.3.1 Dry materials not classifiable into Groups 01, 02, 03, or 04 in accordance with the recommendations of the manu-facturer.

11. Conditioning

11.1 Condition test specimens at 23 6 2°C and 50 6 10 %

relative humidity for not less than 40 h prior to testing.

12. Test Methods

12.1 Determine the properties enumerated in this classifica-

tion system using the referenced test methods.

13. Inspection and Certification

13.1 Inspection and certification of the materials supplied in reference to a specification on this classification system shall be for conformance to the requirements specified herein.

13.2 Lot acceptance inspection shall be the basis on which

acceptance or rejection of a lot is made and shall consist of the test listed as it applies: Test Method D1238, Melt Flow Rate.

13.3 To ensure certifiability in accordance with 13.5, peri-

odic check inspection shall consist of tests for all of the requirements specified in this classification system.

13.4 A report of the test results shall be furnished when

requested. The report shall consist of the lot acceptance inspection for the shipment and the results of the most recent periodic-check inspection.

NOTE 8—If recycled plastic is used, insert the following phrase after the word “shipment” in the last sentence of 13.4: “the percent by weight of recycled plastic, as defined in 3.1.37 of Guide D7209, if requested.”

13.5 Certification shall be that the material was

manufactured, sampled, inspected, and tested in accordance with this classification system and that the average values meet the requirements at a 95 % confidence level.

14. Packing, Packaging, and Package Marking

14.1 The provisions of Practice D3892 apply for the

packaging, packing, and marking of containers for plastics materials.

15. Keywords

15.1 line-callout specification; plastics; polycarbonate res-ins; recycled plastics; specification

APPENDIX

(Nonmandatory Information)

X1. CROSS REFERENCES

X1.1 The cross references in Table X1.1 between the designations of government specifications and specifications developed using this classification system are provided for information only.

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SUMMARY OF CHANGES

Committee D20 has identified the location of selected changes to this standard since the last issue (D3935 – 09) that may impact the use of this standard. (May 15, 2015)

(1) Completed five year review.

(2) Changed title to reflect that this is a classification system and not a specification.

(3) In Table PC, tensile yield strength was changed to tensile yield stress. Strength is defined as the maximum stress ob-tained on a stress strain curve. Tensile yield strength indicates that yield occurs at the maximum stress on the curve.

(4) In Table PC, the use of Table B to define all properties, except flow rate and specific gravity, was clarified by extending lines under these tests.

(5) In Table PC, Footnote G was changed to reflect the new flammability callout per D4000-13.

(6) Changed 4.4 to Note 7 because this section contains no instructions, only information.

(7) Deleted old 4.5.

(8) In Table X1, the new flammability callout per D4000-13 was added to this table in parentheses to indicate this change.

(9) Removed permissive language where applicable.

(10) Added D7209 to Section 2 on reference documents.

(11) Editorially revised several sections to conform to D5740.

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TABLE X1.1 Cross-Reference Designations for This Specification and Government Specifications

Government Specifications Previous Line Callout, Specification D3935 (1987) Revised Specification D3935-94 Line Callout

General purpose

L-P-393A PC110B30720E01F02 PC0110B30740EB140ED030EE150EG010FL012

(FF2000)A

Glass reinforced

MIL-P-81390

Type I PC110G40A60840E02F01 PC0110G40A60840EB150ED037EE150EG001FL024

(FA075000)A

Type II PC110G20A50640E02F01 PC0110G20A50640EB150ED037EE150EG001FL024

(FA075000)A

Type III PC110G20A50340E02F01 PC0110G20A50340EB150ED037EE150EG001FL024

(FA075000)A

ANew flammability call out based on D4000–13.

D3935 − 15

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