Etrto Standards Manual Pdf

View and Download Mazda 6 2017 owners manual online. Automobile pdf manual download. Title Etrto Standards Manual Download Full Online Author The Loaves and Fishes Library Subject PDF Download Etrto Standards Manual Download Keywords. Bike wheel what the best tyre width according to its rim Advice from Mavic experts to increase performance in complete safety. Bici. 20. 16vicma by Ciclos Almozara issuu. View and Download Mazda CX3 manual online. CX3 Automobile pdf manual download. Manual_de_uso_Juegos_Panamericanos_Graphic_Standards_Manual-0001-BrandEBook.com.jpg' alt='Etrto Standards Manual Pdf' title='Etrto Standards Manual Pdf' />Tire code Wikipedia. Automobiletires are described by an alphanumeric tire code in American English and Canadian English or tyre code in British English, Australian English and others, which is generally molded or moulded into the sidewall of the tire. This code specifies the dimensions of the tire, and some of its key limitations, such as load bearing ability, and maximum speed. Sometimes the inner sidewall contains information not included on the outer sidewall, and vice versa. The code has grown in complexity over the years, as is evident from the mix of SI and imperial units, and ad hoc extensions to lettering and numbering schemes. New automotive tires frequently have ratings for traction, treadwear, and temperature resistance collectively known as The Uniform Tire Quality Grade UTQG ratings. Most tires sizes are given using the ISO Metric sizing system. However, some pickup trucks and SUVs use the Light Truck Numeric or Light Truck High Flotation system. National technical standards regulationseditThe European Tyre and Rim Technical Organisation ETRTO and the Tire and Rim Association TRA are two organizations that influence national tire standards. The objective of the ETRTO include aligning national tire and rim standards in Europe. The Tire and Rim Association, formerly known as The Tire and Rim Association of America, Inc., is an American trade organization which standardizes technical standards. In the United States, the Office of Vehicle Safety Compliance, a component of the Department of Transportation, is one of the agencies tasked to enforce the Federal Motor Vehicle Safety Standard FMVSS. Canada has published tire regulations, such as the Motor Vehicle Tire Safety Regulations SOR 9. Explanation of tire codesedit. Tire identification diagram. The ISO Metric tire code consists of a string of letters and numbers, as follows An optional letter or letters indicating the intended use or vehicle class for the tire. The earliest tires were bands of leather, then iron later steel placed on wooden wheels used on carts and wagons. The tire would be heated in a forge fire, placed. Etrto Standards Manual Pdf' title='Etrto Standards Manual Pdf' />P Passenger Car. LT Light Truck. ST Special Trailer. T Temporary restricted usage for space saver spare wheelsP indicates that the tire is engineered to TRA standards, and absence of a letter indicates that the tire is engineered to ETRTO standards. In practice, the standards of the two organizations have evolved together and are fairly interchangeable, but not fully, since the Load Index will be different for the same size tire. The nominal section width of the tire in millimeters the widest point from both outer edges side wall to side wall. The tire surface that touches the road usually has smaller width. Slash character for character separation. The aspect ratio of the sidewall height as a percentage of the nominal section width of the tire. If the information is omitted, it is assumed to be 8. If the number is larger than 2. An optional letter indicating construction of the fabric carcass of the tire. B bias belt where the sidewalls are the same material as the tread, leading to a rigid rideD diagonal. R radialif omitted, then it is a cross ply tire. Diameter in inches of the wheel that the tires are designed to fit. There is the rare exception of metric diameter tires, such as the use of the 3. Few tires are made to this size currently. The number may be longer where a half inch size is used, for example many heavy transport trucks now use 2. Load index see table below. Some light truck tires are approved for dual use, that is they can be run in pairs next to each other. If so, separate load indexes will be specified for single and dual usage. In the example shown in the light truck tire illustration, the tire has a load index of 1. Tires without this designation are unsafe for dual usage. Speed rating see table below. Additional marks See subheading below. Flotation sizeseditTire identification diagram, light truck specific features. Some light truck tires follow the Light Truck Numeric or Light Truck High Flotation systems, indicated by the letters LT at the end instead of the beginning of the sequence, as follows The tire diameter is given for High Flotation tires and omitted from Numeric tires. The diameter of the tire in inches. Separator character. The section width cross section of the tire in inches. If the tire diameter is not given, section widths ending in zero e. These aspect ratios often vary from todays tire manufacturer specification. Construction of the fabric of the tire. B bias belt. D diagonal. R radial. 2 digit number Diameter in inches of the wheel rim that this tire is designed to fit. LT Designates that this is a Light Truck tire. Load index and speed rating are sometimes not mandatory for flotation sizes, but must be for any tire approved for street and highway use. Load index see table below. Speed rating see table below. Additional marks See subheading below. As an example, if a tire size has two sets of numbers 6 1. If a tire size has three sets of numbers 1. Load rangeeditThe Load Range Letter on light truck tires indicates their ply rating. Load Range. Ply Rating. A2. B4. C6. D8. E1. F1. 2G1. 4H1. 6J1. L2. 0M2. 2N2. 4 Load indexeditThe load index on a passenger car tire is a numerical code stipulating the maximum load mass, or weight each tire can carry. For Load Range B tires, ETRTO ISO Metric standards specify the load index rating at an inflation pressure of 3. Pa table below, while P Metric standards measure the load capacity at an inflation pressure of 3. Pa. The two standards vary slightly with the capacity required for different inflation pressures. While all ETRTO tires of the same load index will have the same maximum load, P Metric tires with the same load index may have different load capacities depending on the tire size. The TRA Inflation Tables must always be consulted when comparing the load capacity of P Metric tires the Load Index alone is not sufficient. An example a P2. R1. Standard Load tire has a load index of 8. Pa. A P2. 155. 0R1. Pa. 1. 2ETRTO produces a Standards Manual current edition 2. The load index table 2. G7 lists the Load index from 04. Pa it doesnt specify, but see Load Inflation Table. The Load Inflation Table references the load index to inflation pressures between 2. Pa and 4. 2 psi 2. Pa at 1 psi 6. 9 k. Pa intervals which is too large to be included here. Standard load table extract from ETRTO standards manual 2. G7ref 4. 2 psi 2. Pa1. 3Code. Weight. Code. Weight. Code. Weight. Code. Weight. Some of the older letter code load range ratings for Light Truck Tires can be found in a chart1. Goodyear Tire Rubber Company. For example Tire size. Weight lb lbin. Weight lb lbin. LR Code. DELT2. 158. R1. 62. 33. 5 6. LT2. R1. 62. LT2. 358. R1. 62. LT2. 457. R1. 62. Speed ratingeditThe speed symbol is made up of a single letter or an A with one number. It indicates the maximum speed at which the tire can carry a load corresponding to its Load Index. The testing method consists of pressing the tire against a large diameter metal drum to reflect its appropriate load, and run at ever increasing speeds in 1. Speed rating1. 3Codekmhmph. Codekmhmph. A1. 53. L1. 20. 75. A2. 10. M1. 30. 81. A3. 15. N1. 40. 87. A4. 20. 25Pp English Version For Pc. P1. 50. 94. A5. 25. Q1. 60. 10. 0A6. 30. R1. 70. 10. 6A7. 35. S1. 80. 11. 2A8. 40. T1. 90. 11. 8B5. 03. U2. 00. 12. 4C6. 03. H2. 10. 13. 0D6. 54. V2. 40. 14. 9E7. 04. Zover 2. 40over 1. F8. 05. 0W2. 70. 16. G9. 05. 6Wover 2. J1. 00. 62. Y3. 00. K1. 10. 68Yover 3.