D4169 assurance level

The test specimen to be used should consist of Feb 18, 2022 · 4. • Profile based on Assurance Level I, II, or III • 180 minutes divided amongst all possible shipping orientations o Up to 3 axes • All the following High, Medium, and Low level Truck profiles tested (no assurance levels) o Low Level: 120 minutes (40 minutes per axis) o Medium Level: 45 minutes (15 minutes per axis) Feb 17, 2024 · For example, using an Assurance Level of I under ASTM D4169-22, a 12 x 12 x 12 inch box that weighs 30 pounds would have required a vehicle stacking top load of 800 lbf. 1 Discussion—Level I is a high level of test intensity Dec 24, 2014 · 1. Assurance Level I: 60 Minutes (30 Base Down, 15 Side Down, 15 End Down) Assurance level II: 40 Minutes (20 Base Down, 10 Side Down, 10 End Down) Assurance Level III: 30 Minutes (15 Base Down, 7:30 Side Down, 7:30 End Down) Drop Testing (Shipper We would like to show you a description here but the site won’t allow us. 2 assurance level—level, n—the level of test intensity based on its probability of occurring in a typical distribution cycle. The ASTM D 4169 protocol test sequence includes the following steps: Define the shipping unit in terms of size, weight, and form of construction. This standard proposes 18 different distribution cycles depending on the type of load and the type of transport, and it is the client who decides which one to perform based on the product and the route that it will 21151110411594,514 10. Feb 12, 2024 · Significance and Use 4. The update to the D4169 Truck Profile recommends testing using the proposed spectral shape starting at an intensity level that is comparable to the 90th percentile of the referenced measured data. We have no amendments or corrections for this standard. Conclusion This study aims to understand how well the ASTM D4169 Assurance Level II standard for the laboratory simulation of vibrations experienced by PV modules during transportation, prescribed in IEC62759-1:2015, emulate the transportation conditions in India. In this stage, 100-, 200-, and 500-L Flexsafe 3D bags that had been gamma irradiated at 50 kilogray (kGy), were set as the worst-case level. Testing under D7386 is similar to testing under ISTA 3A, with additional elements common to D4169. U. There are three pre-established levels: • Level I is a high level of test intensity and has a low proba-bility of occurrence. a permanent implantable device) are considered when selecting the AL. Define Shipping Unit – The weight, size, and form of construction must be defined. ASTM D4169 Distribution Cycles Criterion 3: the package should be intact and the product damage free. In many cases, package distribution testing can be part of a more comprehensive test program to include routine qualification of individual package components or part Jun 24, 2017 · ASTM has D4169: Standard Practice for Performance Testing of Shipping Containers and Systems, and D7386: Standard Practice for Performance Testing of Packages for Single Parcel Delivery Systems. The standard FCA C. Sep 26, 2020 · 3. October 10, 2001 Standard Practice for Performance Testing of Shipping Containers and Systems 83 Great Oaks Boulevard San Jose, CA 95119 408-224-1300. • Level III is a Dec 27, 2016 · 1. can withstand on average of 25,000 lbs. 83 Great Oaks Boulevard San Jose, CA 95119 408. 1 This practice provides a uniform basis of evaluating, in a laboratory, the ability of shipping units to withstand the distribution environment. The procedures in ASTM D4169 and ASTM D7386 are similar: Characterize the shipping container in terms of size, weight and construction. If we are making a recommendation to a medical device company with a sterile device, we will always recommend AL1. Examples of How Assurance Levels affect Test Parameters (ASTM D4169 Example). 2023(E1) EDITION. 2 assurance level, n—the level of test intensity based on its probability of occurring in a typical distribution cycle. 5 hours, or about 750 miles. 1 Discussion—Level I is a high level of test intensity and has a low probability of occurrence. Quantitative targets for each test and level are summarized. Medium Level for 10 minutes. 2 assurance level—the level of test intensity based on its probability of occurring in a typical distribution cycle. 70 G. Dear Alex DiNello:We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28 Jul 28, 2016 · Instead of performing the truck vibration test at one assurance level, the test dwell period is divided between Low, Medium and High intensity levels – 0. This standard proposes 18 different distribution cycles depending on the type of load and the type of transport, and it is the client who decides which one to perform based on the product and the route that it will Aug 10, 2022 · A: Operating temperature: -20–60°C; Storage temperature: -40–85°C; Humidity: 5%–95% — Non condensing; Shipping & vibration: ASTM D4169, Assurance Level II Updated on August 10, 2022 Tagged: IO-R-16 IO-R-34 jace 8000 Niagara 4 Tridium Tridium IO FAQs Tridium Niagara 4 D4169, Assurance Level II • MTBF: 10 years MOUNTING Support mounting on EN50022 standard 7. 1 acceptance criteria, n—the acceptable quality level that must be met after the shipping unit has been subjected to the test plan. com This standard is issued under the fixed designation D4169; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. Home | Lansmont astm d4169: The ASTM D4169 testing standard is considered standard practice for container and shipping system performance testing. of static compression. We specialize in medical device packaging testing and engineering. Note 1: Sources of supplementary information are listed in the Reference section (1-11). Performance Testing: ASTM D4169-22 Q&A. txt) or read online for free We review the fundamental objectives and provide comparisons of ASTM D4169’s three Assurance Levels for Compression, Drop, and Vibration tests. 3 This standard does not purport to address all of the safety concerns, if any, associated with its use. An assurance level is the overall intensity level that you are going to subject your packages to while undergoing vibration. Jul 28, 2020 · https://www. VALIDATION. astmd416923-Standard Practice for Performance Testing of Shipping Containers and Systems- 1. • Level II is between the extremes of Level I and Level III. H38cm (<9kg) H33cm (<18 kg) H31cm (<27kg) 6 impacts F7. As well as whether the container will be manually or mechanically handled. Mar 27, 2024 · 4. In addition, precautions for transport of hazardous materials and dangerous goods are also described in additional regulations. This is accomplished by subjecting them to a test plan consisting of a sequence of anticipated hazard elements encountered in various distribution cycles. 227. B. www. 233Grms ISTA Steel spring-Field level-0. Two Locations. 1 Discussion—Level I is a high level of test intensity Feb 10, 2023 · astm d4169现在最新版本是2022版本，astm d4169是医疗器械行业广泛使用的标准，它是fda认可的共识标准。 astm d 4169 dc13-22运输包装箱和系统性能检测规程. 1 This practice provides a guide for the evaluation of shipping units in accordance with a uniform system, using established test methods at levels representative of those occurring in actual distribution. 1 Discussion— Level I is a high level of test intensity and has a low probability of occurrence. 41 Conductbridgeimpactsonlong,narrowshipping unitswhichhavealengthofatleast361n. 5mm x 35mm DIN rail or panel mounting AGENCY CERTIFICATIONS • FCC Part 15, class b • C-UL • CE • UL916, Open Energy Management Class 2 • RoHS2 • REACH • WEEE • CAN/CSA-C22. 10326 Roselle Street San Diego, CA 92121 858. 4 GHz • Shipping & vibration: ASTM D4169, Assurance Level II • MTTF: 10 years+ JACE 9000 controller. The recommended test levels are based on available Following is a quick summary from DDL on the recently updated ASTM D4169 standard. 1 This practice provides a uniform basis of evaluating, in a laboratory, the ability of shipping units, weighing up to but not exceeding 150 lb (68 kg), intended for the single parcel delivery system to withstand the hazards associated with the distribution environment. For the fourth impact, rotate the specimen 180° on the carriage. 5" (38mm) clearance around all sides and minimum 3" (76mm) at bottom for optional Wi-Fi antenna Expansion module. westpak. Although, you could lay this down and stack on top of it, you could potentially run into issues with shipment in compression doing it this way. Using the new and updated guidelines ASTM D4169-23, this same package would require a vehicle stacking top load of 960 lbf. 1 DiscussionÐLevel I is a high level of test intensity Jul 11, 2017 · High Level – 5 Minutes (Bottom/Side/End) More data has become available regarding truck vibration, prompting updates to the ASTM D4169 standard. Pallet: 15lbs. The typical test protocol for medical device package testing is the distribution cycle 13 (i. ASTM D4169-16 Truck Vibration Changes *. 242Grms 2 10 100 200 (b) Frequency, Hz 2 10 100 200 Frequency, Hz 0-30 km/h 31-60 km/h 61-90 km/h ASTM D4169-Assurance level T (from D4169), we get Almost exactly the Grms of ASTM D4169 Truck, Assurance Level II! This could lead to the conclusion that the test simulates an “average” truck trip of 12. 2 assurance level, nÐthe level of test intensity based on its probability of occurring in a typical distribution cycle. Assurance levels 1 to 3 are described in the standard. westpak. Assurance Level 2, and a medium level truck spectrum for vibration, most closely matches the parameters of ISTA 3E; however test severity can be modified for each Currently, when performing an ASTM D4169 simulation for Distribution Cycles 1, 3, 4, 5, and 6, the truck vibration test is performed at a single intensity level (e. Feb 20, 2024 · 3. If you put that box through compression testing and the flutes are not Dec 18, 2015 · ASTM D4169-05 is currently an FDA-recognized standard. . 1. It provides a guide for the evaluation of shipping units in accordance with a uniform system, using established test methods at levels representative of those occurring in actual distribution. This 40 minute test cycle is looped 3 times to meet the 120 minute duration. D4169 DC13 AL1 *ISTA 2A (STANDARD BOX) ISTA 3A (STANDARD BOX) Climatic Conditioning — Refer to ASTM D4332 or ASTM F2825 . Standard Practice for Performance Testing of Shipping Containers and Systems. Packaging Compliance Labs is a certified ISO 11607 lab. ISTA addresses their procedures in Series 2: Partial Simulation Performance Tests, and Series 3: General Simulation Performance Tests. 2 This test method provides guidance in the development and use of vibration data in the testing of shipping containers. ASTM D4169-22 - Standard Practice for Performance Testing of Shipping Containers and Systems - Free download as PDF File (. 1 acceptance criteria—the acceptable quality level that must be met after the shipping unit has been subjected to the test plan. For this study, transportation vibration data was collected from the field for standard 20 module pallet which are commonly used for large May 2, 2018 · Step 4: Final qualification testing programme performed on filled Flexsafe 3D bags in their shipping Palletank according to ASTM D4169, assurance level II at 4 °C (39 °F) and 40 °C (104 °F). This is accomplished by subjecting them to a test plan Jul 26, 2023 · Comprising of 18 distinct distribution cycles, 10 diverse test schedules, and three varying assurance levels, ASTM D4169 equips manufacturers and shippers with the tools to make informed decisions crucial to ensuring the safe arrival of products into the hands of their eagerly waiting customers. 3. 2. ISTA 3A. ISTA 3A is an alternative test to ASTM D4169. Low Level: 120 minutes (40 minutes per axis) Medium Level: 45 minutes (15 minutes per axis) High level: 15 minutes (5 minutes per axis) NOTE: Only the TRUCK profile is affected; there are no changes to any other testing schedules. Status. g. It also must be determined if the container will be manually or mechanically handled. 8100. Contact Us. The most severe, assurance level 1 is used for medical devices. COMPARISON OF ASTM D4169 VS. The Standard C. The ASTM D4169-22 revision makes similar changes, but to the air profiles. has been certified to ASTM D4169 Assurance Level 1 and tested with a 600 lbs. See Section 7. San Diego Laboratory. Transitioning to ASTM D4169-23, with a density factor update to 12, the revised guidelines would now require the packaging to withstand a top load of approximately 1,440 lbf for Oct 1, 2020 · Medical device companies almost always run assurance level 1, with a few exceptions if they have the technology to track the distribution cycle of their samples. To assist in designing the optimal package, ASTM D4169 offers varying Assurance Levels (AL) within the package testing sequence to simulate a variety of distribution scenarios and probabilities. Up to four (4) may be used. 54 and 0. May 30, 2022 · This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies. January 1, 2022. of load of loose steel stampings. ISTA 2A & 3A 4334 Brockton Dr SE Suite E Kentwood, MI 49512 616. OPTIONS. Low Level for 27 minutes. Climatic Conditioning Climatic Conditioning Drops — 6 * 24” May 26, 2022 · Revision of D4169-22 Standard Practice for Performance Testing of Shipping Containers and Systems Rationale Current version of ASTM D4169 does not reference to F2825 for DC-13 for possible environmental conditioning. This result confirmed the identified packaging alternative as the best choice. 0 – GM Packaging and Identification Requirements For Production Parts – requires its suppliers to test their parts pallet loads per Under the ASTM D4169-22 standard, utilizing a shipping density factor of 10, the vehicle stacking requirement might have been set at 1,200 lbf for Assurance Level I. Level III is a low level of test intensity, but has a correspondingly high probability of occurrence. ASTM-D4169-14. , DC 13). e. 4540 pkgcompliance. f Jan 4, 2016 · For example, let us say you are using the ASTM D4169 standard, and your product is subject to shipping by truck and rail. The recommended test levels are based on available information on the shipping and handling environment, and current industry/government ASTM D4169 Shipping Test Procedures. 测试项目包含： 环境处理72h(如何选取根据产品流通区域可能经历的极端环境） a 人工/机械搬运. Distribution Cycle 13 (ASTM D4169-05, DC=13) includes drop, compression, vehicle stacking, and vibration simulations in its test sequence, which would be suitable for packaged products being delivered in trucks and trains. 2. 11a/b/g/n IEEE802. ASTM D4169-14 utilizes static assurance levels for the truck vibration profile. Half Sleeve: 20lbs. 5 deemed to be most sensitive to damage. 1 Discussion—Level I is a high level of test intensity May 4, 2020 · ASTM D7386 Performance Testing of Packages for Single Parcel Delivery Systems is divided into four standards for different package types: TS1 for small packages, TS2 for large/flat packages, TS3 for long/narrow packages, and for TS4 all others. Assurance Level I (AL I) is the most severe and conservative, AL II is the most common and suggested by the standard, and AL III is the least severe/conservative. Establish the assurance level or level of test intensity. A number in parentheses indicates the year of last reapproval. pdf), Text File (. The updated ASTM D4169-22 standard explains that all three test levels (low, medium, and high) are used for a better understanding of actual air vibration environments. See full list on westpak. ASTM D4169-23 covers a laboratory testing method that exposes the shipping units to a sequence of anticipated hazards for their journey. The original air transportation profiles in ASTM D4169 were generally based on data from the Assurance Level (AL) • 3A includes Optional test combining Random Vibration Under Low Pressure (simulated High Altitude) • D4169 includes simulated High Altitude as a separate test • Vibration sequence requires higher test intensity but for a shorter time • D4169-16: Truck Vibration spectra is based on recent, real-world data The ASTM D4169 standard mentions testing in the most stable orientation. Similar to D4169-14 Jun 8, 2022 · astm d4169 物流周期和测试时间表 ASTM D4169 定义了 18 个不同的物流周期、10 个不同的测试计划和3个强度级别。 选择正确的物流周期（DC）、测试计划和保证水平组合对于确保您的运输集装箱能够经受住配送过程并安然无恙地到达客户手中至关重要。 PACKAGING TARE WEIGHT. Allow at least 1. The most stable orientation would be the wide platform. Establish assurance level which is a level of intensity of the hazards; Determine the acceptance criteria. The proposed update, however, is recommending the ASTM D4169 provides 11 steps when conducting the standard test method. While this is certainly based on a number of arguable assumptions, the numbers seem reason- September 14, 2018. Stay informed on vital updates to ASTM D4169-23 and industry-specific requirements impacting your organization Mar 1, 2016 · Qualification and validation of the shipped product can be performed in real shipment with monitoring (25-27) or in simulated shipment according to ASTM D4169 (19) or ISTA (18). 40, 0. with these changes coming in D4169-23, that same assurance level for the Jan 1, 2022 · D4169. 4. Given that ISTA 3E is a procedure for unitized loads, DC 6 would be the ASTM D4169 equivalent. 2 No. This is accomplished by subjecting them to a test plan consisting of a Apr 1, 2016 · ASTM D4169-01e1. The current ASTM D4169 Truck Assurance Level II profile shape is not representative of the truck environment but its intensity level—0. com/All three Assurance Levels (AL) of ASTM D4169 are demonstrated with a Compression Test on a corrugated fiberboard container (aka card The assurance levels were discarded and instead, the test profiles at all three (I,II,III) assurance levels were combined across all three transport methods (Air/Truck/Rail) to give the intensity level testing that is more realistic. These levels dictate the severity of each test such as impact mass, drop height and vibration power density. 623. General Motors, for example, since February 2020, in its Specification GM 1738 NA rev. ASTM D4169-Assurance level II-0. Shipping solutions qualified according to ASTM D4169 at Assurance Level 1 and ISTA 7D extreme summer/winter temperature profiles Safe, secure supply chain assures integrity of all materials, including resins, film, bags, filters and assemblies See Section 7. On the other hand, each assurance level provides different test densities. com 1 of 1 CONFIDENTIAL . pdf; ASTM D4169-16. Mar 13, 2020 · Level I is the most severe, Level II is moderate, and Level III the least severe. Assurance Level II) for the entire test duration. See "Expansion Module and IO Configurations" Without knowing these elements, over-packaging, leading to financial and environmental waste, is likely. Use the following test levels: 9 D4169 − 16 Assurance Level I II III Frequency Range, Hz 3 to 100 3 to 100 3 to 100 Amplitude (O-Peak), g Rail Truck 0. 5 with stress bearing F3. Aug 16, 2019 · Product cost and patient risk (e. 1 This practice provides a uniform basis of evaluating, in a laborat. 205-12 ASTM D4169-22 - Standard Practice for Performance Testing of Shipping Containers and Systems REDLINES - Free download as PDF File (. pdf – PDFCOFFEE. ASTM D4169-16 incorporates the various test intensities (low, medium, high) and durations into one truck vibration profile. May 13, 2022 · 1. 0 product support load H=2,7 or 1,4m <13,6kg Revised By: ASTM D4169-23e1. The recommended test levels are based on available information on the shipping and handling environment, and current industry/government 3. Compliments of WESTPAK Inc. Each distribution cycle handles a different shipping environment and different shipping hazards. There is a list of 18 DC to choose from in ASTM D4169 such as rail and motor freight, unitized, Assurance Level II, etc. 10326 Roselle Street San Diego, CA 92121 858-623-8100. Prior to D4169-16 (D4169-12 and earlier) there was a requirement to select the assurance level desired (I,II or Mar 27, 2024 · ASTM-D4169 Standard Practice for Performance Testing of Shipping Containers and Systems ASTM-D4169-23e1. Links to WESTPAK’s Compression Test Video (demonstrating the three levels) and ASTM D4169 Vehicle Stacking Test calculator are provided ASTM-D4169 describes the standard practice for performance testing of shipping containers and systems. 52 Grms—is Contact Us. Nov 4, 2016 · A new ASTM D4169 version was released in June 2016 by the American Society for Testing Materials (ASTM). Revision Level. Loose Load Vibration . 1 DiscussionÑ Level I is a high level of test intensity ASTM D4169-16: What’s Your Assurance Level? ASTM D4169 Testing – Tektronix; ASTM-D4169 – Life Science Outsourcing, Inc. Shipping and Vibration ASTM D4169, Assurance Level II MTBF 10+ years Removeable micro‐SD card with 4GB flash total storage/2 GB user storage Two (2) isolated V‐Net communication ports Two (2) 10/100 MB Ethernet ports LG V‐Net 10/100 Ethernet Wireless Connectivity Wi‐Fi: IEEE802. This practice provides a uniform basis of evaluating, in a laboratory, the ability of shipping units to withstand the distribution environment. This standard replaces the previous 2014 version and aims at providing, under laboratory controlled environment, uniform basis of evaluating 3. Gone are concept of assurance levels (for truck segment only). Level III is a low level of test intensity, but has a correspondingly high probability of occurrence Jun 3, 2024 · At our state-of-the-art package testing laboratory, Eurofins Medical Device Testing performs ASTM D4169, ASTM D7386, and ISTA 1, 2, & 3 series distribution testing, as well as custom programmes to evaluate the stresses of transporting your medical device. 224. High Level for 3 minutes. As you may recall, vibration testing on the truck profiles was updated in ASTM D4169-16 . ASTM D4169-14 DC13. com. 2 assurance levelÑ the level of test intensity based on its probability of occurring in a typical distribution cycle. The ASTM D4169 is a standard practice for performance testing of shipping containers and systems. Current 3. After the transit simulation, the packages were opened and the pouches were again subjected to a bubble leak test. For comparison purposes to understand the impact of this change, using an Assurance Level of I under ASTM D4169-22, a 12 x 12 x 12 inch box that weighs 30 pounds would have required a vehicle stacking top load of 800 lbf. Jul 31, 2023 · The packages were sent through normal transit testing sequences of ASTM D4169 (Assurance Level 1, DC13 Schedules A,F,E,A). The assurance level is defined as the level of test intensity based on its prob-ability of occurrence in a typical distribution cycle. 2°F) to 40°C (104°F). However, under this updated standard, ASTM D4169-23, this same package and situation could offer a vehicle stacking top load of 960 lbf. COM; 주제와 관련된 이미지 astm d4169 distribution cycle 18 assurance level 1; 주제에 대한 기사 평가 astm d4169 distribution cycle 18 assurance level 1 Assurance level II is the most commonly chosen level and is recommended by ASTM D4169 unless conditions dictate otherwise. ISO 11607-1 Packaging for terminally sterilized medical devices - Part 1: Requirements for materials, sterile barrier systems and packaging systems. No failures were found. What vibration input should I use? Before testing, the user should determine which hazards are present in the distribution environment. Mar 14, 2024 · Discover the latest developments in ASTM standards for packaging and manufacturing at WESTPAK’s General Manager, Greg Schwinghammer's recent attendance at the ASTM International Conference. txt) or read online for free. c车载堆码. 2 assurance level— the level of test intensity based on its probability of occurring in a typical distribution cycle. This standard is not included in any packages. 0 no support any load F4. If a justification can be made Mar 7, 2024 · By assuring the performance of shipping units, ASTM D4169-23 helps to support the globalized web of individuals, companies, and nations that comprise our society. 1300. D4169-23 ASTM D4169-23 ASTM D4169-23 ASTM D4169-23 ASTM D4169-23 Test Method ASTM D5276 ASTM D642 ASTM D4728 ASTM D6344 ASTM D5276 Assurance level II II Low, medium & high 5,4 Joules II Test Spec. It is also recommended that Dec 28, 2018 · Flexsafe® 3D bags in the shipping Palletank® were tested according to the protocol described in this article and met the acceptance criteria for liquid shipping qualified according to ASTM D4169 cycles 12 & 14 at the assurance level II for a temperature range of 4°C (39. Establish Assurance Level – Specify the level of intensity you wish to carryout during the test. 5 0. 11n HT20 @ 2. This practice is not intended to supplant The assignment and scope of an ASTM D4169 Package Testing Program will depend on the objectives of the testing, the type of package system and the intended mode of distribution. We can simulate stacking, dropping, and vibrating of the shipper associated with We would like to show you a description here but the site won’t allow us. The acceptance criteria can be the following: Criterion 1—Product is damage-free; Criterion 2 Guidance on aspects of a risk-based approach to assuring sterility of terminally sterilized, single-use health care product that is unable to withstand processing to achieve maximally a sterility assurance level of 10-6: 12/23/2019: Sterility: 14-538: Complete: ASTM : F3357-19: Standard Guide for Designing Reusable Medical Devices for High quality example sentences with “astm d4169, assurance level ii” in context from reliable sources - Ludwig is the linguistic search engine that helps you to write better in English Before using the ASTM D4169-16 standard, it is necessary to know which distribution cycle is desired to be tested for tests and what level of assurance must be met. 25 0. (915mm)andeach oftheothertwodimensionsare20%orlessofthelongest Feb 23, 2024 · The ASTM D4169 test standard is one of the most frequently used to partially simulate the distribution environment. 1 acceptance criteria, nÐthe acceptable quality level that must be met after the shipping unit has been subjected to the test plan. The test intensity level most commonly performed is assurance level 1 because terminally sterilized medical devices are high-value products for invasive and minimally invasive human use. 1 acceptance criteriaÑ the acceptable quality level that must be met after the shipping unit has been subjected to the test plan. Mar 2, 2021 · ASTM D4169: The ASTM D4169 testing standard is considered standard practice for container and shipping system performance testing. How long should the conditioning be carried out for? Conditioning the product is essential to gaining knowledge on how the packaging and packaged product will work together throughout the distribution cycle. Full Sleeve: 25lbs. The recommended test level. nk dg yp cz dp or nd su xf tt