1、MW-A- 1058A January 16, 1975 SUPERSEDING MMM-A-OOlO58(GSA-FSS) June 10, 1968 . FEOERAL SPECIFICATION (IN PRESSURIZD DISPENsERs) This specification was approved by the Commissioner, Federal Supply Service, General Services Administration, for the use of all Federal agencies. ADHESIVE, RUBBER BASE, 1.
2、 SCOPE AND CLASSIFICATION 1.1 Th:s specification covers two types of rubber base adhesive which is relatively colorless, fast drying, and packaged in a pressurized container commonly known as an aerosol dispenser. 1.2 Classification. The rubber base adhesive shall be of the following types, as speci
3、fied: Type I - Regular (high solids). Type II - Non-flammable (low solids). 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issues in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein: Federal Specifications: Q
4、Q-S-775, - Steel Sheets, Carbon, Zinc-Coated. PPP-B-585 - Boxes, Wood, Wirebound. PPP-B-591 - Boxes, Shipping, Fiberboard, Wood-Cleated. PPP-B-601 - Boxes, Wood, Cleated-Plywood. PPP-B-621 - Boxes, Wood, Nailed and Lock-Corner. PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-B-640 - Boxes, Fiberboard,
5、Corrugated, Triple-Wall. PPP-F-320 - Fiberboard: Corrugated and Solid, SLieet Stock (Container Grade), and Cut Shapes. Federal Standards: Fed. .St Methods of Inspection, Sampling, and Testing. (Activities outside the Federal Government may obtain copies of Federal Specifications, Standards, and Hand
6、books as outlined under General Information in the Index of Federal Specifications and Standards at the prices indicated in the Index. The Index, which includes cumulative monthly supplements as issued, is for sale on a subscription basis by the Superintendent of Documents, IIS Government Printing O
7、ffice, Washington, DC 20402. (Single copies of this specification and other Federal Specifications required by activities but- side the Federal Government for bidding purposes are available without charge from Business Service Centers at the General Services Administration Regional Offices in Boston
8、, New York, Washington, DC, Atlanta, Chicago, Kansas City, MO, Fort Worth, Denver, San Francisco, Los Angeles, and Seattle, WA. (Federal Government activities may obtain copies of Federal Specifications, Standards, and Hand- books and the Index of Federal Specifications and Standards from establishe
9、d distribution points in their agencies. ) Military Standards: MIL-STD-lo5 - Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-129 - Marking for Shipment and Storage. (Copies of Military Specifications and Standards required by contractors in connection. with specific procurement
10、functions should be obtained from the procuring activity or as directed by the contracting officer. 3 FSC 8040 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MM“A-1058A 2.2 Other publications. The following d
11、ocuments form a part of this specification to he extent specified herein. Unless a specific issue is identified, the issue in effect on date of invitation for bids or request for proposal shall apply. American Society for Testing and Materials (ASTM) Standards: D 230-44 - Numbered Cotton Duck and Ar
12、qy Duck. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) Chemical Specialities Manufacturers Association (CSMA) Publications: CGMA - Aerosol Guide - Vacuum Distillation: Distillation Method (Adopted December 4,
13、 1956) (Fifth Edition, March 1966). Mekhod for Determination of Volatile - Nonvolatile Ratios of Aerosol Formulations; Vacuum BMA - Aerosol Guide- Flammability: Revised FLammabi1ity:Test Methods for Aerosol Products (adopted September 12, 1963). (Fifth Edition, March 1966). (Application for copies s
14、hould be addressed to Chemical Specialities Mnufacturers Association, Inc. ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except
15、as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in t
16、he specification where such inspections are deemed necessary to assure that supplies and services conform to prescribed requirements. 4.2 Sampling. Sampling for visual examination and testing shall be in accordance with MIL-SEI-105. 4.2.1 Visual examination. At inspection level S-4, with an acceptab
17、le quality level (AQL) of 2.5 defects per one hundred units, check for the following: Leaks, rust, damages (dents, bruises, scratches), film defects, improper marking, ease of operation (shake and spray), and other deficiencies. I 4.2.2 Tests. Conduct tests at inspection level S-3 with an incorrect;
18、 illegible; improper size, location, sequence, or method of application. Materials Any component missing or damaged. Workmanship Inadequate application of components such as incomplete closure of container flaps, loose strapping, inadequate stapling. Distortion of container. Contents (exterior and i
19、nterior container) Number per container is more or less than required. Net weight exceeds requirements. 4.4 Test procedures. 4.4.1 Total solids. Test for total solids by the CSMA December 4, 1956, Vacuum Distillation Method for th Determination of Volatile - Nonvolatile Ratios of Aerosol Formulation
20、s. 4.4.2 Adhesion 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I I MIM-A-LOSBA BO 9797974 0006873 b I “M-A-1058A 4.4.2.1 Equipment. . (a) Galvanized steel panels, 4 inches by 8 inches, 0.0635 inch nominal thickness, conforming to type I, class d
21、 or e, of QQ-S-775. Number 10 cotton strips, 1-112 inches by 12 inches , conforming to ASTM D 230-44. Scott tensile tester, or equivalent, with a jaw separation rate of 2 inches per minute. pressure by hand to the test assembly. is d A steel rollery, 2 inches wide and weighing approximately 850 gram
22、s, capable of applying (e) Timing device such as a stopwatch. 4.4.2.2 Procedure. Have the galvanized panels thoroughly degreased, clean, and dry. Attach two of these panels to a vertical or almost vertical surface in a suitable mnner so that adhesive may be applied from the pressurized dispenser eve
23、nly and conveniently. Attach four of the cotton duck strips with the weave (warp) in the 12-inch direction in a similar manner to the same surface. Apply three even coats of adhesive (enough to fill in the weave) to the canvas strips and two even coats to the galvanized panels (at the time the secon
24、d and third coats are applied to the cloth). Allow a the lastcoats, bond two of the cotton strips to each of the galvanized panels by placing the strips, drying time of 15 minutes after application of each coat of adhesive. Five minutes after applying with adhesive coat facing down, to the panels wi
25、th the adhesive-coated side turned upward. Bond the strips to the panels securely gnd smoothly by rollingthe bonds vigorously with the steel roller. Dry the bonds for 24 hours at 73.4 2 2OF. (23 2 1.l0C) , and then immediately for 2 days at 120 2 5OF. (hg0 + 3OC). With no further drying time, cut st
26、rips one inch wide from the center of the 1-1/2 Inch boded pieces. Pull each of the four bonds thus prepared in 180 peel on the tensile testing machine at a jaw separation rate of 2 inches per minute. Record the peel adhesion value for each of the four specimens and report the average of the four va
27、lues in pounds per inch width for determining conformance with 3.4.1.2. 4.4.3 Net contents. Weigh the full, pressurized, ready-to-use dispenser of adhesive accurately to the nearest gram. Then, with the dispenser well agitated and in an upright position and using a needle point, pierce the top with
28、a very fine hole which will allow the propellant to escape. (Conditioning the dispenser for one hour at a relatively low temperature will facilitate this.) After a few minutes the pierced hole can be enlarged and, as soon as there is no further evidence of gas escaping, the top of the dispenser shou
29、ld be cut open. Thoroughly clean all interior sur- faces of the dispenser and top by successive washing with hexane or toluene. Dry the clean, empty dispenser and top, and weigh accurately to the nearest gram. Determine the net contents by calcu- lating the difference between the full, ready to use
30、dispenser and the clean, empty dispenser. All tests for net contents shall be made on the same dispenser, and not less than two dispensers of.any one or both sizes from the same lot shall be tested for conformance with 3.4.2.1. Report the average of the results obtained on the two or more dispensers
31、 tested. 4.4.4 Internal pressure. 4.4.4.1 Equi ment. U.S. Gauge Company gage number 10897, or equivalent (calibrated to read O to 100 p.i*ith value fitting for insertion into pressurized aerosol dispensers with a Sprayon Danvern valve, or equal. 4.4.4.2 Procedure. Condition the pressurized dispenser
32、s to be tested at the temperature speci- fied in 3.4.2.2. Turn the dispenser upside down with the spray tip seated correctly in the valve. Clean the valve of adhesiue by depressing the spray tip until only gas is emitted from the tip. Keeping the dispenser in the inverted position, push the gage int
33、o the valve and immediately read the gage. Pull the gage from the dispenser before turning the dispenser to the upright position. Not less than six dispensers shall be tested at each specified temperature from an inspection lot. Report the maximum, minimum, and average pressures for each specified t
34、emperature for conformance with 3.4.2.2. 4.4.5 Delivery rate. 4.4.5.1 Equipment. (a) Balance or scale accurate to + 1 g. (b) Timing device such as a stopwtch. (c) Spray booth or area in which adhes2ve can be sprayed safely for one minute continuously. - I/ A roller similar to the one specified may b
35、e purchased from the Hoggson and Pettis mnufacturing C Co., Orange, Connecticut. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-“M-A-1058 4.4.5.2 Procedure. Condition the pressurized dispenser at 73.4O 2 2F. (23 2 l.lC). Weigh the conditioned pres
36、surized dispenser. Then, holding the dispenser in a vertical position, depress Reweigh the dispenser and calculate the delivery rate from the loss in weight from the original. the valve activator all the way down, and spray the adhesive at full valve opening for 60 seconds. Report the average delive
37、ry rate of six dispensers from each inspection lot for conformance with 3.4.2.3. (23O + 1.1% . Use No. 1 kraft, wrapping paper, untreated, 90 pounds basis weight (24 inches by 4.4.6 Spraying properties. Condition the adhesive dispenser for one hour at 73.4 2 2OF. position to a wall or other stationa
38、ry surface. Holding the pressurized dispenser about five to ten 36 inGhes, 5iO sheets). Attach a sheet of this paper, approximately one yard square, in a vertical inches from the surface, spray the adhesive on the kraft paper for approximately ten seconds without moving the dispenser. Observe the ad
39、hesive pattern thus sprayed on the paper surface. If for any reason the spraying is not done in a manner so that an even, continuous flow of adhesive is delivered, the dispenser should be agitated and the test repeated. Not less than six dispensers of adhesive from each inspection lot shall be teste
40、d for conformance with 3.4.2.4, 4.4.7 Non-flammability (type II only). The contents of the pressurized container shall be pro- jected through a flame as described in CSMA Aerosol Guide, September 12, 1963, Revised Flammability Test Methods for Aerosol Products. 5. PREPARATION FOR DET;CVERY 5.1 Packa
41、ging. Packaging shall be levei A, B, or C as specified (see 6.2). tion, shall be packaged in a close-fitting box conforming to PPP-B-636, class weather-resistant. Fiberboard separators shall be provided with the fiberboard meeting the requirements of PPP-F-320, type CF, class doroestic, variety SW.
42、The box shall be closed and sealed in accordance with the appendix of the box specification. 5.1.1 Level A. Unless otherwise specified (see 6.2), 12 filled cans of adhesive of like descrip- shall conf-h Pm-B-636, class domestic. 5.1.2 Level B. Level B packaging shall conform with the requirements of
43、 5.1.1, except the box 5.1.3 Level C. The filled cans of adhesive shall be packaged to afford adequate protection against corrosion and damage during shipment from the supply source to the first receiving activity. The suppliers commercial practice will beacceptable when it fulfills the above requir
44、ements. 5.2 Packing. Packing shall be level A, B, or C, as specified (see 6.2). 5.2.1 Level A. Unit packages of adhesive, of like description, shall be packed in a close-fitting box confor- PPP-B-585, class 3; PPP-B-591, class II; PPP-B-601, overseas type; PPP-B-, class 2; PPP-B-636, class weather-r
45、esistant; or PPP-B-640, class 2. The boxes shall be closed and strapped in accordance with the appendix of the applicable box specification. The gross weight of the triple-wall fiberboard box and the wood boxes shalkaot exceed 200 pounds. The gross weight of the PPP-B-636 box shall not exceed the we
46、ight limitations of the box specification. 5.2.2 Level B. Filled cans pckaged as specified in 5-1.2 shall not require overpacking. 5.2.3 Level C. The filled cans of adhesive shall be packed to insure carrier acceptance and safe delivery at the lowest rates, in containers complying with the Uniform F
47、reight Classification or National Motor Freight Classification, as applicable. 5.3 Marking. 5.3.1 Civil agencies. In addition to markings required by the contract or order, the interior packages and shipping containers shall be marked in accordance with Fed. Std. No. 123. packages and shipping conta
48、iners shall be marked in accordance with MIL-STD-129. 5.3.2 Military agencies. In addition to markings required by the contract or order, the interior 5.3.3 Special markings. In addition to other markings specified (see 5.3.1 and 5.3.2), the following markings shall be applied 6 Provided by IHSNot f
49、or ResaleNo reproduction or networking permitted without license from IHS-,-,-MM“A-1058A 5.3.3.1 Unit containers. Net weight in ounces. Name of material. Manufacturers name and address. Precautions for use and storage. Directions for use including surface preparation. Date of manufacture by month and year. Date of first re-inspection (I2 months after date of manufacture). Store below &OF. Name of the propellant or propellants. 5.3.3.2 Intermediate and shipping containers. Net weight in o
