DLA A-A-55063 A-2012 APRON UTILITY IMPERMEABLE RUBBER COATED FABRIC (GENERAL PURPOSE).pdf

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1、 A-A-55063A 13 March 2012 SUPERSEDING A-A-55063 13 August 1992 COMMERCIAL ITEM DESCRIPTION APRON, UTILITY, IMPERMEABLE, RUBBER COATED FABRIC (GENERAL PURPOSE) The General Services Administration has authorized the use of this commercial item description in preference to MIL-A-41829. 1. SCOPE. This C

2、ommercial Item Description covers the requirements for an impermeable utility bib type apron in a synthetic rubber coated fabric to be used by personnel engaged in heavy duty occupations such as equipment maintenance, material handling, abattoir worker, butcher, depot maintenance, etc. 2. CLASSIFICA

3、TION. The apron will be available in one color, type and size. 3. SALIENT CHARACTERISTICS. 3.1 Description. The apron shall be a bib type, made of a single thickness of coated cloth. The side of the coated cloth with the heaviest application of coating compound shall be on the front side. The neck a

4、nd waist straps shall be securely attached to the apron through grommets applied with reinforcement patches at upper corners of the bib and corners at waist (see Figure 1). The ends of the tape/webbing for waist and neck straps shall be either tipped or impregnated with resin 1/4 inch (minimum) in l

5、ength and shall contain sufficient resin to prevent raveling. All raw edges of the apron shall be folded over 3/8 - inch ( 1/16) and topstitched 1/4 - inch from edge. Corners shall be backstitched 3/4 - inch ( 1/8). The apron shall meet the finished dimensions requirements of Table IV and the color

6、shall be black unless otherwise specified in the contract or solicitation (see 7.6). Comments, suggestions, or questions on this document should be addressed to: Attn: DLA Troop Support Standardization Team, 700 Robbins Avenue, Philadelphia, PA 19111-5096. Since contact information can change, you m

7、ay want to verify the currency of this address information using Acquisition Streamlining and Standardization Information System (ASSIST) online database at https:/assist.daps.dla.mil/. AMSC N/A FSC 8415 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking permitted without license

8、from IHS-,-,-A-A-55063A 2 3.1.1 Figure. Figure 1 is furnished for informational purposes only. To the extent of any inconsistencies between the written document and the figure, the written document shall govern. 3.2 Materials. 3.2.1 Base cloth. The base cloth shall have the physical properties provi

9、ded in Table I when tested in accordance with the methods provided therein. TABLE I. Material requirements Characteristic Requirement Test Method Fabric Weight, (oz/sq.yd) 2.5 - 3.1 ASTM D 3776 Option C Fiber Content 100% Polyester AATCC 20 Yarn Spun Staple Visual Fabric Count,( inch) minimum Warp F

10、ill 52 30 ASTM D 3775 3.2.1.1 Coated cloth. The coating compound (see 3.2.1.1.1) shall be applied to both sides of the base cloth. The coated cloth shall be dusted with powder (see 3.2.1.2). The coated cloth shall be fully vulcanized and shall meet the performance requirements of Table II when teste

11、d by the methods specified (see 7.4). TABLE II. Coated cloth performance requirements Characteristic Requirement Test Method Overall weight (oz/sq yd) 13.0 - 15.1 ASTM D3776 Option C Breaking Strength, (minimum) Warp Filling 155 130 ASTM D 5034 ASTM D 5034 Coating Adhesion , 1bs/ 2-inch width (minim

12、um) 6.0 ASTM D 751 1/ Blocking (maximum) No. 1 ASTM D 751 2/ Hydrostatic resistance Initial After abrasion 3/ 5/ ASTM D 751 4/ ASTM D 751 6/ 1/ A pulling clamp speed of 5 mm/sec (12 in./ min) shall be used. The adhesion shall be the average of the five (5) highest peaks of force Three (3) specimens

13、shall be tested. cyanoacrylate adhesive shall be used. 2/ The test shall be performed at a temperature of 180 ( 2F) for 30 minutes. Evaluate the resistance of the specimen to blocking by the scale given below: 1No Blocking. Cloth surfaces are free and separate without any evidence of cohesion or adh

14、esion. 2Trace Blocking. Cloth surfaces show slight cohesion or adhesion. 3Slight Blocking. Cloth surfaces must be lightly peeled to separate. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55063A 3 4Blocking. Cloth surfaces separate with difficu

15、lty or coating is removed during separation. 3/ The 4-1/2 inch diameter test area shall show no leakage. Leakage is defined as the appearance of water at three different places in the 4-1/2 inch diameter test area. 4/ The hydrostatic head shall be raised to a height of 20 inches for a period of 1 ho

16、ur and then examined for leakage. 5/ Extent of leakage shall be not more than 5 milliliters of water. 6/ An area approximately 2 - inches by 8 - inches extended along the center line of the specimen shall be abraded by means of a 2- inch square of 1/0 garnet paper. The garnet paper shall be uniforml

17、y loaded to 8.0 ( 0.1) ounces. The specimen shall be laid on a smooth level surface with the heavily coated side up and abraded as described by moving the loaded garnet paper five times in each direction. The specimen shall be turned over and abraded on the other side (i.e. The specimen is abraded i

18、n a North-south direction on one side and an east-west direction on the other side). The abraded specimen shall be tested with the abraded area in the center of the 4-1/2 inch diameter test area. The hydrostatic head shall be raised to a height of 20 - inches for a period of 1 hour. A leakage of mor

19、e than 5 milliliters of water by the end of the test period shall be reported as a test failure. 3.2.1.1.1 Coating compound. The coating compound shall be chloroprene rubber or polyisobutylene rubber suitably compounded plasticized with phthalate or phosphate ester plasticizers, and pigmented black

20、when tested as specified in ASTM D 297. Natural rubber, synthetic rubber other than chloroprene rubber, or reclaimed rubber shall not be used. 3.2.1.2 Dusting powder. The dusting powder for application to the coated cloth shall be a whiting, finely divided non-toxic mineral material of ground potass

21、ium aluminum silicate (see 7.5). 3.2.2 Tape/webbing (nylon or polyester). The tape/webbing shall be 3/4 (-1/32, + 1/16) inch wide, and sufficiently lightweight and flexible for tying when the apron is donned. The fiber content shall be nylon or polyester when tested in accordance with AATCC 20. The

22、tape/webbing shall meet the requirements of Table III when tested in accordance with the methods provided therein. The apron shall have two (2) tapes/webbings for the waist cut to 24 ( 1/2) inches in length, and one (1) tape/webbing cut to 30 ( 1/2) inches for the neck strap. TABLE III. Tape/webbing

23、 performance requirements Characteristic Requirement Test Method Water Repellency Dynamic absorption, percent, initial only (maximum) 40 AATCC - 70 pH 5.5 - 8.5 AATCC 81 Labile sulfur None present 1/ 1/ The presence of labile sulfur test method shall be as follows unless otherwise specified in the c

24、ontract or solicitation (see 7.6): In the determination of presence of labile sulfur in textile materials with lead acetate, two 1.50 ( 0.01) gram samples from each material submitted for evaluation shall be tested. Each of the two samples shall be cut into very small pieces and placed into separate

25、 test tubes. The samples shall be submersed in a stannous chloride solution that Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55063A 4 contains 100 grams of stannous chloride crystals ACS in 100 milliliters of hydrochloric acid ACS (35 percent

26、 concentration) and 50 milliliters of distilled water. A filter paper wet out with a 5.0 percent lead acetate solution shall be placed over the top of the test tube. The lead acetate solution contains 5.0 grams of lead acetate CP reagent grade and enough distilled water to make up a 100 milliliter s

27、olution; if the solution is not clear add a few drops (one at a time) of glacial acetic acid until the solution is clear. The test tube containing the textile sample, stannous chloride and wet filter paper shall be heated over a low flame until the solution is boiling. The solution should not be hea

28、ted for more than 15 seconds. A brown to black stain on the filter paper should be evaluated as follows: Free - The filter paper shows no discoloration or staining of any kind. Slight - The filter paper shows a light tan to light brown discoloration stain. Moderate - The filter paper shows a dark br

29、own discoloration stain. Severe - The filter paper shows a black color stain. 3.2.2.1 Color (tape/webbing only). The color of the tape/webbing for the neck and waist straps shall approximate the color of the coated cloth after dusting or, as an alternate, green in accordance with FED-STD 595/34094 (

30、Camouflage Green 483) unless otherwise specified in the contract or solicitation. 3.2.3 Thread. The thread shall conform to MIL-DTL-32072 Type I twisted soft multiple cord or Type II, twisted bonded multiple cord, Class1, Subclass B, Tex Size 45. Color shall approximate apron material. Any lubricant

31、 or finish shall not stain the end item. 3.2.4 Grommets. The apron shall have four (4) grommets, which shall be located as per Figure 1. The grommets shall be in accordance with NASM16491, Type II, Class 3, Size 8-10 millimeters (3/8-inch in diameter nominal). 3.2.4.1 Reinforcement patches The apron

32、 shall have four (4) reinforcement patches located on the inside at the bib and waist corners where the grommets are positioned (see Figure 1). The material for the patches shall be rubber coated spun polyester cloth in accordance with 3.2.1.1. 3.2.5 Labels. The back side of each apron shall be stam

33、ped with the following information using 1/4 inch minimum height indelible white characters: Item description Contract Number National Stock Number (NSN) Date of Manufacturer Suppliers Name 3.2.5.1 Barcode tag. Each apron will be individually bar-coded with a paper tag for personal clothing items. T

34、he paper tag shall be standard bleached sulfate having a basis weight of 100 pounds. The paper used for the tags will have a smooth finish to accept thermal transfer and direct printing. The tags shall have a hole and will be attached to the item and shall be clearly Provided by IHSNot for ResaleNo

35、reproduction or networking permitted without license from IHS-,-,-A-A-55063A 5 legible and readable by a scanner. The barcode element will be a 13 digit national stock number (NSN) along with respective Universal Product Code (UPC) bar code. The bar code type shall be a medium to high code density a

36、nd shall be located so that it is completely visible on the item when it is folded and/or packaged as specified, and so that it causes no damage to the item. 3.3 Patterns. Commercial patterns shall be used. They shall conform to the design requirements of 3.1. 3.4 Construction. Construction of garme

37、nt shall be according to good commercial practices. and conform to the design in 3.1 and the dimensions specified in 3.5. 3.5 Dimensions The dimensions shall be as specified in Table IV and Figure 1. TABLE IV. Dimensions (inches) Location or designated component Dimension Tolerance A) Bottom Width,

38、edge to edge 34-5/8 3/4 B) Side Length, waist to bottom edge 36-7/8 3/4 C) Length, neck edge to bottom edge 48 3/4 D) Bib Width, edge to edge 11-3/8 1/4 E) Sweep Width, neck edge to waist edge 11-5/8 1/4 F) Grommet placement 1 inch from all designated corners 1/8 3.6 Toxicity. The finished apron sha

39、ll not present a health hazard and shall show compatibility with prolonged, direct skin contact when tested as specified in 5.4. Chemicals recognized by the Environmental Protection Agency (EPA) as human carcinogens shall not be used. 3.7 Workmanship. The finished apron shall conform to the quality

40、of product established by this document and shall be thoroughly cleaned and all loose thread and foreign matter removed. 4. REGULATORY REQUIREMENTS. Unless otherwise specified (see 3.2.1.1.1). The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accor

41、dance with paragraph 23.403 of the Federal Acquisition Regulation (FAR). 5. PRODUCT CONFORMANCE PROVISIONS. 5.1 Product conformance. The products provided shall meet the salient characteristics of this Commercial Item Description, conform to the producers own drawings, specifications, standards, and

42、 quality assurance practices, and be a similar product that is offered for sale in the commercial marketplace. The Government reserves the right to require proof of such conformance. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55063A 6 5.2 Vi

43、sual examination. Each apron shall be examined for the defects listed in Table V. TABLE V. Visual examination defects Material defects Any hole, cut, abraded area, tear or rip; any spot or stain or foreign matter on outside; any peeling, cracking, sticking, flaking or excess of coating compound. Any

44、 blisters, pits, abrasions or tackiness. Color not as specified or not uniform due to discoloration, any shaded part, any objectionable odor Seams and stitching Loose or tight stitching tension, broken or missing thread or stitch, needle chew or improper stitching; any open seams, any part caught in

45、 an unrelated operation or stitching; raw edge, thread breaks, thread ends not removed; pulled or snagged stitches Workmanship Any component part omitted, dusting powder omitted, measurement of item not as specified; design not as specified. Labels Label(s) missing, incorrect, or illegible; bar code

46、 or UPC code label (when required, see 7.6) omitted or not readable by scanner; human-readable interpretation (HRI) omitted or illegible; bar code not visible on folded, packaged item; bar code label causes damage to the item. Packaging Not packaged in accordance with the contract or purchase order.

47、 5.3 Dimensional examination The finished apron shall conform to the dimensions specified in 3.5 and Figure 1. Any dimension that is not within tolerance shall be classified as a defect. 5.4 Toxicity test. When required (see 7.6), an acute dermal irritation study and a skin sensitization study shall

48、 be conducted on laboratory animals. When the results of the studies indicate the apron is not a sensitizer or irritant, a Repeat Insult Patch Test shall be performed in accordance with the Modified Draize Procedure (see 7.1.2.3). If the toxicity requirement (see 3.6) can be demonstrated with histor

49、ical use data, toxicity testing may not be required. 5.5 Acceptance criteria. Acceptance criteria shall be as specified in the contract or purchase order. 6. PACKAGING. 6.1 Packaging. Preservation, packing, and marking are as specified in the contract or order (see 7.4). 7. NOTES. 7.1 Sources of documents. Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro