阻燃标准fmvss302

阻燃 标准 excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载 fmvss302 FEDERALSAFETYSTANDARDS MVSS 302 MOTOR VEHICLE SAFETY STANDARD NO. 302 FLAMMABILITY OF INTERIOR MATERIALS– PASSENGER CARS, MULTIPURPOSE PASSENGER VEHICLES, TRUCKS AND BUSES EFFECTIVE — SEPTEMBER 1, 1972 36 FR 22965 12/2/71 (Issued 12/2) 40 FR 14318-19 3/31/75 (Issued 3/17) 40 FR 42746-7 9/16/75 (Issued 9/10) 40 FR 56667-8 12/4/75 (Issued 11/28) 63 FR 28922-57 5/27/98 (Issued 5/13/98) A 63 FR 50995-1004 9/24/98 (Issued 9/21/98) S1. Scope. This standard specifies burn S4.1.1 Reserved. resistance requirements for materials used in the occupant compartments of motor vehicles. S4.2 Any portion of a single or composite S2. Purpose. The purpose of this standard material which is within 1/2 inch of the occupant is to reduce the deaths and injuries to motor compartment air space shall meet the vehicle occupants caused by vehicle fires, requirements of S4.3. especially those originating in the interior of the vehicle from sources such as matches or cigarettes. Effective: 5/27/99 S3. Application. This standard applies to R– < S4.2 Any portion of a single or composite passenger cars, multipurpose passenger material which is within 13 mm of the occupant vehicles, trucks, and buses. compartment air space shall meet the requirements of S4.3. > S3A. Definitions. “Occupant compartment air space” means the space within the occupant compartment that normally contains refreshable S4.2.1 Any material that does not adhere to air. other material(s) at every point of contact shall meet the requirements of S4.3 when tested S4. Requirements. separately. S4.1 The portions described in S4.2 of the following components of vehicle occupant S4.2.2 Any material that adheres to other compartments shall meet the requirements of material(s) at every point of contact shall meet S4.3: Seat cushions, seat backs, seat belts, the requirements of S4.3 when tested as a headlining, convertible tops, arm rests, all trim composite with the other material(s). panels including door, front, rear, and side panels, compartment shelves, head restraints, floor coverings, sun visors, curtains, shades, wheel housing covers; engine compartment Effective: 5/27/99 covers, mattress covers, and any other interior materials, including padding and R– < S4.2.2 Any material that adheres to other crash-deployed elements, that are designed to materials at every point of contact shall meet the absorb energy on contact by occupants in the requirements of S4.3 when tested as a composite event of a crash. with the other material(s). > A–New Material Added R–Revised 302–1–1 R – DISTRIBUTED: Oct. 1998 FEDERALSAFETYSTANDARDS MVSS 302 MOTOR VEHICLE SAFETY STANDARD NO. 302 FLAMMABILITY OF INTERIOR MATERIALS– PASSENGER CARS, MULTIPURPOSE PASSENGER VEHICLES, TRUCKS AND BUSES Illustrative Example Effective: 5/27/99 Illustrative Example R– < > surface, at a rate of more than 4 inches per C–< Material A has a non-adhering interface minute. However, the requirement concerning with material B and is tested separately. Part of transmission of a flame front shall not apply to a material B is within 1/2 inch of the occupant surface created by the cutting of a test specimen compartment air space, and materials B and C for purposes of testing pursuant to S5. adhere at every point of contact; therefore B and C are tested as a composite. The cut is in material C as shown, to make a specimen (b) If a material stops burning before it has 1/2 inch thick. > burned for 60 seconds from the start of timing, and has not burned more than 2 inches from the S4.3(a) When tested in accordance with S5, point where timing was started, it shall be considered to meet the burn-rate requirement of material described in S4.1 and S4.2 shall not burn, nor transmit a flame front across its S4.3 (a). A–New Material Added R–Revised 302–1–2 C – DISTRIBUTED: Sept. 1998 FEDERALSAFETYSTANDARDS MVSS 302 MOTOR VEHICLE SAFETY STANDARD NO. 302 FLAMMABILITY OF INTERIOR MATERIALS– PASSENGER CARS, MULTIPURPOSE PASSENGER VEHICLES, TRUCKS AND BUSES 1/2-inch clearance space around the top of the Effective: 5/27/99 cabinet, ten 3/4-inch-diameter holes in the base R– < Material A has a non-adhering interface of the cabinet, and legs to elevate the bottom of with material B and is tested separately. Part of the cabinet by three-eighths of an inch, all material B is within 13 mm of the occupant located as shown in figure 1. compartment air space, and materials B and C adhere at every point of contact; therefore, B and S5.1.2 Prior to testing, each specimen is C are tested as a composite. The cut is in material conditioned for 24 hours at a temperature of C as shown, to make a specimen 13 mm thick. 70 F and a relative humidity of 50 percent, and the test is conducted under those ambient S4.3(a) When tested in accordance with S5, conditions. material described in S4.1 and S4.2 shall not burn, nor transmit a flame front across its surface, at a rate of more than 102 mm per Effective: 5/27/99 minute. The requirement concerning R– < S5.1.1 The test is conducted in a metal transmission of a flame front shall not apply to a cabinet for protecting the test specimens from surface created by the cutting of a test specimen drafts. The interior of the cabinet is 381 mm long, for purposes of testing pursuant to S5. 203 mm deep, and 356 mm high. It has a glass observation window in the front, a closable (b) If a material stops burning before it has opening to permit insertion of the specimen burned for 60 seconds from the start of timing, holder, and a hole to accommodate tubing for a and has not burned more than 51 mm from the gas burner. For ventilation, it has a 13 mm point where timing was started, it shall be clearance space around the top of the cabinet, considered to meet the burn-rate requirement of ten holes in the base of the cabinet, each hole 19 S4.3 (a). > mm in diameter and legs to elevate the bottom of the cabinet by 10 mm, all located as shown in Figure 1. S5. Test procedure. S5.1.2 Prior to testing, each specimen is S5.1 Conditions. conditioned for 24 hours at a temperature of 21: C, and a relative humidity of 50 percent, and S5.1.1 The test is conducted in a metal the test is conducted under those ambient cabinet for protecting the test specimens from conditions. > drafts. The interior of the cabinet is 15 inches long, 8 inches deep, and 14 inches high. It has a S5.1.3 The test specimen is inserted glass observation. window in the front, a between two matching U-shaped frames of closable opening to permit insertion of the metal stock 1-inch wide and 3/8 of an inch specimen holder, and a hole to accommodate high. The interior dimensions of the U-shaped tubing for a gas burner. for ventilation, it has a frames are 2 inches wide by 13 inches long. A A–New Material Added R–Revised 302–1–3 R – DISTRIBUTED: July 1998 FEDERALSAFETYSTANDARDS MVSS 302 MOTOR VEHICLE SAFETY STANDARD NO. 302 FLAMMABILITY OF INTERIOR MATERIALS– PASSENGER CARS, MULTIPURPOSE PASSENGER VEHICLES, TRUCKS AND BUSES FIGURE 1 A–New Material Added R–Revised 302–1–4 A – DISTRIBUTED: July 1998 FEDERALSAFETYSTANDARDS MVSS 302 MOTOR VEHICLE SAFETY STANDARD NO. 302 FLAMMABILITY OF INTERIOR MATERIALS– PASSENGER CARS, MULTIPURPOSE PASSENGER VEHICLES, TRUCKS AND BUSES Effective: 5/27/99 R– < > A–New Material Added R–Revised 302–1–5 R – DISTRIBUTED: Oct. 1998 FEDERALSAFETYSTANDARDS MVSS 302 MOTOR VEHICLE SAFETY STANDARD NO. 302 FLAMMABILITY OF INTERIOR MATERIALS– PASSENGER CARS, MULTIPURPOSE PASSENGER VEHICLES, TRUCKS AND BUSES specimen that softens and bends at the flaming inches long, wherever possible. The thickness of end so as to cause erratic burning is kept the specimen is that of the single or composite horizontal by supports consisting of thin, material used in the vehicle, except that if the heat-resistant wires, spanning the width of the material’s toickness exceeds 1/2 inco, toe U-shaped frame under the specimen at 1-inch specimen. is cut down to that thickness intervals. A device that may be used for measured from the surface of the specimen supporting this type of material is an additional closest to the occupant compartment air space. U-shaped frame, wider than the U-shaped frame Where it is not possible to obtain a flat specimen containing the specimen, spanned by 10-mil because of surface curvature, the specimen is wires of heat-resistant composition at 1-inch cut to not more than 1/2 inch in thickness at any intervals, inserted over the bottom U-shaped point. The maximum available length or width of frame. a specimen is used where either dimension is less than 14 inches or 4 inches, respectively, unless surrogate testing is required under S5.1.4 A bunsen burner with a tube of S4.1.1. 3/8-inch inside diameter is used. The gas adjusting valve is set to provide a flame, with the Effective: 5/27/99 tube vertical, of 1 1/2 inches in height. The air inlet to the burner is closed. R– < S5.2.1 Each specimen of material to be tested shall be a rectangle 102 mm wide by 356 mm long, wherever possible. The thickness of the Effective: 5/27/99 specimen is that of the single or composite R– < S5.1.3 The test specimen is inserted material used in the vehicle, except that if the between two matching U-shaped frames of material’s thickness exceeds 13 mm, the metal stock 25 mm wide and 10 mm high. The specimen is cut down to that thickness measured interior dimensions of the U-shaped frames are from the surface of the specimen closest to the 51 mm wide by 330 mm long. A specimen that occupant compartment air space. Where it is not softens and bends at the flaming end so as to possible to obtain a flat specimen because of cause erratic burning is kept horizontal by surface curvature, the specimen is cut to not supports consisting of thin, heat-resistant wires, more than 13 mm in thickness at any point. The spanning the width of the U-shaped frame under maximum available length or width of a specimen the specimen at 25 mm intervals. A device that is used where either dimension is less than may be used for supporting this type of material is 356 mm or 102 mm, respectively, unless an additional U-shaped frame, wider than the surrogate testing is required under S4.1.1. > U-shaped frame containing the specimen, spanned by 10-mil wires of heat-resistant S5.2.2 The specimen is produced by cutting composition at 25 mm intervals, inserted over the the material in the direction that provides the bottom U-shaped frame. most adverse test results. The specimen is oriented so that the surface closest to the S5.1.4 A bunsen burner with a tube of 10 occupant compartment air space faces mm inside diameter is used. The gas adjusting downward on the frame. valve is set to provide a flame, with the tube vertical, of 38 mm in height. The air inlet to the S5.2.3 Material with a napped or tufted burner is closed. > surface is placed on a flat surface and combed twice against the nap with a comb having seven S5.1.5 The gas supplied to the burner has to eight smooth, rounded teeth per inch. a flame temperature equivalent to that of natural gas. S5.3 Procedure. S5.2 Preparation of specimens. (a) Mount the specimen so that both sides and one end are held by the U-shaped frame, and one end is even with the open end of the S5.2.1 Each specimen of material to be tested shall be a rectangle 4 inches wide by 14 frame. where the maximum available width of a A–New Material Added R–Revised 302–1–6 A – DISTRIBUTED: July 1998 FEDERALSAFETYSTANDARDS MVSS 302 MOTOR VEHICLE SAFETY STANDARD NO. 302 FLAMMABILITY OF INTERIOR MATERIALS– PASSENGER CARS, MULTIPURPOSE PASSENGER VEHICLES, TRUCKS AND BUSES specimen is not more than 2 inches, so that the S5.3 Procedure. sides of the specimen cannot be held in the U-shaped frame, place the specimen in position (a) Mount the specimen so that both sides on wire supports as described in S5.1.3, with and one end are held by the U-shaped frame, one end held by the closed end of the U-shaped and one end is even with the open end of the frame. frame. Where the maximum available width of a specimen is not more than 51 mm, so that the (b) Place the mounted specimen in a sides of the specimen cannot be held in the horizontal position, in the center of the cabinet. U-shaped frame, place the specimen in position (c) With the flame adjusted according to on wire supports as described in S5.1.3, with S5.1.4, position the bunsen burner and one end held by the closed end of the U-shaped specimen so that the center of the burner tip is frame. three-fourths of an inch below the center of the (b) Place the mounted specimen in a bottom edge of the open end of the specimen. horizontal position, in the center of the cabinet. (d) Expose the specimen to the flame for 15 (c) With the flame adjusted according to seconds. S5.1.4, position the bunsen burner and (e) Begin timing (without reference to the specimen so that the center of the burner tip is period of application of the burner flame) when 19 mm below the center of the bottom edge of the flame from the burning specimen reaches a the open end of the specimen. point 11/2 inches from the open end of the (d) Expose the specimen to the flame for 15 specimen. seconds. (f) Measure the time that it takes the flame (e) Begin timing (without reference to the to progress to a point 1 1/2 inches from the period of application of the burner flame) when clamped end of the specimen. If the flame does the flame from the burning specimen reaches a not reach the specified end point, time its point 38 mm from the open end of the specimen. progress to the point where flaming stops. (f) Measure the time that it takes the flame (g) Calculate the burn rate from the formula to progress to a point 38 mm from the clamped D end of the specimen. If the flame does not reach B = 60 x T the specified end point, time its progress to the point where flaming stops. Where: (g) Calculate the burn rate from the formula B = Burn rate in inches per minute. D D = Length the flame travels in inches, and B = 60 x T T = Time in seconds for the flame to travel D inches. Where: B = Burn rate in millimeters per minute. Effective: 5/27/99 D = Length the flame travels in millimeters, R– < S5.2.3 Material with a napped or tufted and surface is placed on a flat surface and combed T = Time in seconds for the flame to travel twice against the nap with a comb having seven to eight smooth, rounded teeth per 25 mm. D millimeters. > A–New Material Added R–Revised 302–1–7 A – DISTRIBUTED: July 1998