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Recognized Consensus Standards
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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 057 Date of Entry 12/20/2021 
FR Recognition Number 8-569
Standard
ASTM F648-21
Standard Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants
Scope/Abstract
1.1 This specification covers ultra-high molecular weight polyethylene powder (UHMWPE) and fabricated forms intended for use in surgical implants.

1.2 The requirements of this specification apply to UHMWPE in two forms. One is virgin polymer powder (Section 4). The second is any form fabricated from this powder from which a finished product is subsequently produced (Section 5). This specification addresses material characteristics and does not apply to the packaged and sterilized finished implant.

1.3 The requirements of this specification do not apply to UHMWPE virgin powder or fabricated forms intentionally crosslinked or blended with other additives, for example, antioxidants.

1.4 The biological response to polyethylene in soft tissue and bone has been well characterized by a history of clinical use and by laboratory studies.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Transition Period
FDA recognition of ASTM F648-14 [Rec# 8-385] will be superseded by recognition of ASTM F648-21 [Rec# 8-569]. FDA will accept declarations of conformity, in support of premarket submissions, to [Rec# 8-385] until December 18th, 2022. After this transition period, declarations of conformity to [Rec# 8-385] will not be accepted.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§888.3310 Prosthesis, Hip, Constrained, Cemented Or Uncemented, Metal/Polymer Class 2 KWZ
§888.3310 Prosthesis, Hip, Constrained, Cemented Or Uncemented, Metal/Polymer, + Additive Class 2 PBI
§888.3540 Prosthesis, Knee, Patello/Femoral, Semi-Constrained, Cemented, Metal/Polymer Class 2 KRR
§888.3500 Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Metal/Composite Class 2 KYK
§888.3150 Prosthesis, Elbow, Constrained, Cemented Class 2 JDC
§888.3040 Pin, Fixation, Smooth Class 2 HTY
§888.3040 Screw, Fixation, Bone Class 2 HWC
§888.3040 Pin, Fixation, Threaded Class 2 JDW
§888.3040 Component, Traction, Invasive Class 2 JEC
§888.3040 Fastener, Fixation, Nondegradable, Soft Tissue Class 2 MBI
§888.3040 Prosthesis, Subtalar, Plug, Polymer Class 2 MJW
§888.3040 Appliances And Accessories, Fixation, Bone, Absorbable Single/Multiple Component Class 2 MRY
§888.3040 Screw, Fixation, Bone, Non-Spinal, Metallic Class 2 NDJ
§888.3040 System, External Fixator (With Metallic Invasive Components) Class 2 NDK
§888.3040 Pin, Fixation, Smooth, Metallic Class 2 NDL
§888.3040 Pin, Fixation, Threaded, Metallic Class 2 NDM
§888.3040 Accessory, System, External Fixator, Containing Antimicrobial Agent Class 2 NJA
§888.3040 Laparoscopic Bone Anchor Urethropexy Instrument Kit Class 2 NWN
§888.3040 Sacroiliac Joint Fixation Class 2 OUR
§888.3040 Pin, Fixation, Resorbable, Hard Tissue Class 2 OVZ
§888.3040 Transtibial Anterior Cruciate Ligament Kit Class 2 PPQ
§888.3040 Sacroiliac Screw Placement Guide Class 2 QSR
§888.3110 Prosthesis, Ankle, Semi-Constrained, Cemented, Metal/Polymer Class 2 HSN
§888.3110 Ankle Arthroplasty Implantation System Class 2 OYK
§888.3340 Prosthesis, Hip, Semi-Constrained, Composite/Metal Class 2 KMC
§888.3353 Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous, Uncemented Class 2 LZO
§888.3353 Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous Cemented, Osteophilic Finish Class 2 MAY
§888.3353 Prosthesis, Hip, Semi-Constrained, Uncemented, Metal / Polymer, Non-Porous, Calcium Phosphate Class 2 MEH
§888.3353 Hip, Semi-Constrained, Cemented, Metal/Ceramic/Polymer + Additive, Porous Uncemented Class 2 OQI
§888.3358 Prosthesis, Hip, Semi-Constrained, Uncemented, Metal/Polymer, Porous Class 2 MBL
§888.3390 Prosthesis, Hip, Hemi-, Femoral, Metal/Polymer, Cemented Or Uncemented Class 2 KWY
§888.3490 Prosthesis, Knee, Non-Constrained (Metal-Carbon Reinforced Polyethylene) Cemented Class 2 KMB
§888.3490 Prosthesis, Knee, Femorotibial, Non-Constrained, Metal/Composite Cemented Class 2 KTX
§888.3510 Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/Polymer Class 2 KRO
§888.3530 Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Metal/Polymer Class 2 HRY
§888.3530 Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Trunnion-Bearing Class 2 LGE
§888.3535 Prosthesis, Knee, Femorotibial, Unicompartmental/Unicondylar, Uncemented, Porous-Coated, Metal/Polymer Class 2 NJD
§888.3560 Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer Class 2 JWH
§888.3560 Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uhmwpe, Pegged, Cemented, Polymer/Metal/Polymer Class 2 MBV
§888.3560 Prosthesis, Knee Patellofemorotibial, Partial, Semi-Constrained, Cemented, Polymer/Metal/Polymer Class 2 NPJ
§888.3560 Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer + Additive/Metal/Polymer + Additive Class 2 OIY
§888.3560 Knee Arthroplasty Implantation System Class 2 OOG
§888.3650 Prosthesis, Shoulder, Non-Constrained, Metal/Polymer Cemented Class 2 KWT
§888.3660 Prosthesis, Shoulder, Semi-Constrained, Metal/Polymer Cemented Class 2 KWS
§888.3660 Prosthesis, Shoulder, Semi-Constrained, Metal/Polymer + Additive, Cemented Class 2 PAO
§888.3660 Shoulder Prosthesis, Reverse Configuration Class 2 PHX
§888.3660 Prosthesis, Total Anatomic Shoulder, Uncemented Metaphyseal Humeral Stem With No Diaphyseal Incursion, Semi-Constrained Class 2 PKC
§888.3660 Shoulder Arthroplasty Implantation System Class 2 QHE
§888.3660 Total Shoulder Arthroplasty System Class 2 QHQ
§888.3800 Prosthesis, Wrist, 2 Part Metal-Plastic Articulation, Semi-Constrained Class 2 JWI
§888.3800 Prosthesis, Wrist, 3 Part Metal-Plastic-Metal Articulation, Semi-Constrained Class 2 JWJ
§888.3800 Prosthesis, Wrist, Semi-Constrained Class 2 KWM
§888.3810 Prosthesis, Wrist, Hemi-, Ulnar Class 2 KXE
§888.3350 Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Cemented Class 2 JDI
§888.3350 Hip, Semi-Constrained, Cemented, Metal/Polymer + Additive, Cemented Class 2 OQH
§888.3350 Acetabular Cup Orientation System Class 2 PLW
§888.3520 Prosthesis, Knee, Femorotibial, Non-Constrained, Cemented, Metal/Polymer Class 2 HSX
§888.3670 Prosthesis, Shoulder, Semi-Constrained, Metal/Polymer, Uncemented Class 2 MBF
FDA Technical Contact
 Jinrong (Jinny) Liu
  FDA/OC/CDRH/OPEQ/OHTII/DHTIIC/
  240-402-3160
  jinrong.liu@fda.hhs.gov
Standards Development Organization
ASTM ASTM International http://www.astm.org/
FDA Specialty Task Group (STG)
Materials
*These are provided as examples and others may be applicable.
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