1、 A-A-59692 November 21, 2001 COMMERCIAL ITEM DESCRIPTION ADHESIVE, WATER-RESISTANT (FOR CLOSURE OF FIBERBOARD BOXES) The General Services Administration has authorized the use of this Commercial Item Description as a replacement for Federal Specification MMM-A-250C. 1. SCOPE. 1.1 This Commercial Ite
2、m Description (CID) covers water-resistant adhesives intended for closure of fiberboard boxes, cartons, and cases. 2. CLASSIFICATION. 2.1 The adhesives covered by this document shall be one of the following types (see 6.2) as specified in the solicitation, contract, or purchase order. Type I - For a
3、pplication, by automatic box closing equipment. Type II - For hand application, by brushing. Type III - For hand application, from pressurized container (aerosol). 3. REQUIREMENTS. 3.1 Material. Except for the limitations of 3.2, the manufacturer is permitted to use any ingredients, which will produ
4、ce an adhesive conforming to the requirements of this document. 3.2 Nontoxicity. The adhesive shall not contain benzene, chlorinated hydrocarbons, or other materials in amounts which can reasonably be toxic to using personnel. The use of poly- Beneficial comments, recommendations , additions, deleti
5、ons, clarifications, etc., and any data which may improve this document should be sent to: Commander, Defense Supply Center Philadelphia, ATTN: DSCP-HSL, 700 Robbins Avenue, Philadelphia, PA 19111- 5092 or FAX (215) 737-2963. AMSC N/A FSC 8040 DISTRIBUTION STATEMENT A. Approved for public release; d
6、istribution is unlimited. METRIC Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 A-A-59692 chlorinated biphenyls (PCBs) is specifically prohibited. Certification that the material is free from harmful toxic substances shall be provided by the manuf
7、acturer and included with each shipment of material (see 6.3). 3.3 Bond Strength. The adhesive shall be capable of bonding pieces of weather-resistance fiberboards to make lap-shear tensile specimens which, when prepared, conditioned, and tested in accordance with 4.4.1 shall either sustain the foll
8、owing loads before failure, or shall fail by pulling out of fibers, as defined in 4.4.1.7. Conditioning procedure Minimum load, pounds 4.4.1.4.1 100 4.4.1.4.2 100 4.4.1.4.3 100 4.4.1.4.4 10 3.4 Shelf Storage Life. When stored as specified in 4.4.5, each type of adhesive shall meet the applicable req
9、uirements of section 3 except that the bond strength values shall not be less than 10 percent below the originally specified values. 3.5 Workmanship. All adhesive submitted against this specification shall be homogeneous and free of lumps and foreign matter as determined in accordance with 4.3.3. A
10、slight separation of components, commonly known as “phasing”, which can be corrected by moderate stirring, shall not be cause for rejection. 3.6 Ability to be applied by automatic equipment. Type I adhesive shall be capable of satisfactory application by means of a specified type of automatic box cl
11、osing equipment. Conformance to this requirement shall be assured in the manner specified (see 4.4.2 and 6.2). 3.7 Brushing Properties. Type II adhesive shall have a consistency such that it will permit easy and satisfactory brush application at 15oC (59oF), as determined in accordance with 4.4.3. 3
12、.8 Aerosol properties. (applicable to Type III only). 3.8.1 Propellant. The propellant shall be a suitable hydrocarbon or halogenated hydrocarbon and shall not contain any gas such as nitrogen, nitrous oxide, or carbon dioxide. The manufacturer shall certify that the propellant is nontoxic when used
13、 in accordance with the manufacturers instructions. 3.8.2 Dispenser. The dispenser shall be a commercial type metal pressure container generally known as an aerosol dispenser of such construction as to assure acceptance of the finished Provided by IHSNot for ResaleNo reproduction or networking permi
14、tted without license from IHS-,-,-3 A-A-59692 package by common carrier operating in interstate commerce. The capacity of the dispenser shall be sufficient to contain the specified net contents of the product with outage in accordance with generally recognized safe commercial practice. 3.8.2.1 Dispe
15、nser valve. The valve shall have a spray head, which can be removed without releasing pressure from the aerosol. The spray head shall have a metering orifice accessible to cleaning with a common pin after removal from the container. The removable spray heads shall contain orifices of such dimensions
16、 as to produce spraying properties as required 3.8.6. The lower end of the dip tube shall not elongate and touch the bottom of the can and shall have a clearance of one-quarter inch to three quarters inch from the bottom rim of the can after storage for one week in the product (which allows for swel
17、ling of the tube). 3.8.2.1.1 Valve operation. The valve shall operate freely without excessive finger pressure, shall close immediately upon release of finger pressure, shall operate in such a manner that spray is continuous without sputtering or interruption, and shall not clog nor collect heavy de
18、posits of adhesive coating around the orifice. 3.8.2.2 Cover can. The valve shall be protected from accidental functioning and damage by a press fitting plastic cover cap, which shall be removable and replaceable. 3.8.3 Condition in container. The adhesive shall be easily dispersed when the containe
19、r is shaken normally by hand. 3.8.4 Gross weight. When tested as specified in 4.4.3, the gross weight of the full dispenser shall be 705 g + 25 g (1 lb 9 oz + .9 oz). 3.8.5 Total solids . When tested as specified in 4.4.3 the total solids shall be not less than 10 percent of the total net contents o
20、f the adhesive dispensers by weight. 3.8.6 Spraying properties. When tested as specified in 4.4.5 the dispenser shall deliver a 6.35 cm x 11.43 cm (2-1/2” x 4 -1/2”) wide, webby, non-misting and uniform spray pattern requirements through 90 percent exhaustion of the container. 4. QUALITY ASSURANCE P
21、ROVISIONS. 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 as otherwise specified in the contract or order, the supplier may use his own or any
22、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 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4
23、 A-A-59692 set forth in the specification where such inspections are deemed necessary to assure that supplies and services conform to prescribed requirements. 4.1.1 The supplier shall submit to the contracting officer a certificate of compliance indicating that the adhesive complies with the shelf s
24、torage life requirement as specified in 3.4. When certificates of compliance are submitted, the Government reserves the right to test such items to determine the validity of the certificate. 4.2 Sampling for inspection and acceptance. Sampling for inspection and acceptance shall be performed in acco
25、rdance with the provisions set forth in ANSI/ASQC Z1.4, except where otherwise indicated. For purpose of sampling, an inspection lot for examination and tests shall consist of all material of the same Type and manufacturers designation submitted for delivery at the same time. 4.2.1 Sampling for insp
26、ection of filled containers. A random sample of filled containers shall be taken from each lot in accordance with ANSI/ASQC Z1.4 at inspection level I and acceptable quality level (AQL) equal to 2.5 percent defective to verify compliance with all requirements of this specification regarding fill, cl
27、osure, marking, and other requirements not involving tests. The lot size for use in determining the sample size under ANSI/ASQC Z1.4 shall be expressed in number of unit containers. 4.2.2 Sampling for uniformity and workmanship. A random sample of inspection units of adhesive shall be selected from
28、the lot in accordance with ANSI/ASQC Z1.4 at inspection level I. The lot size for purpose of determining the sample size shall be expressed in units of five gallons of adhesive. Each unit sample shall consist of the entire contents of a unit container of 3.78 liters (one gallon) capacity or smaller,
29、 or of a 0.47 liter (one-pint) sample taken from the thoroughly mixed contents of a larger container. Not more than one sample unit shall be taken from any one container. Each sample unit shall be examined for uniformity and workmanship in accordance with 4.3.3. 4.2.3 Sampling for tests. If the exam
30、ination for uniformity and workmanship (see 4.3.3) indicates that all the units in the sample have essentially the same appearance and viscosity, one of the sample units shall be selected at random and a sufficient quantity shall be taken from it for use in testing. If, on the other hand, this exami
31、nation indicates that there may be differences between units, separate samples shall be taken from the two units, which appear to differ the most. Each of these samples shall be subjected separately to the applicable tests of 4.4. 4.2.3.1 Sample size. 0.47 liter (one-pint) samples are sufficient for
32、 testing Type II adhesive and one pressurized container (nominal 0.70 liters (24 fluid ounce) capacity) is sufficient for testing Type III adhesive. Larger samples, as specified (see 6.2), may be necessary for testing Type I adhesive against 4.4.2. Provided by IHSNot for ResaleNo reproduction or net
33、working permitted without license from IHS-,-,-5 A-A-59692 4.3 Inspection. 4.3.1 Inspection of materials and components. In accordance with 4.1, the supplier is responsible for insurance that materials and components used were manufactured, inspected, and found to be in accordance with the requireme
34、nt of this specification and, to the extent specified, of referenced subsidiary specifications and standards. In the event of conflict, this specification shall govern. A certificate of nontoxicity shall be furnished in accordance with 3.2. 4.3.2 Inspection of filled containers. Each filled containe
35、r in the sample of 4.2.1 shall be examined for defects of the container and closure, for evidence of leakage, and for inadequate or improper markings. It also shall be weighed to determine conformance to fill requirements. Any container in the sample having one or more visual defects, or having less
36、 than the required fill, shall be rejected. If the number of rejected containers exceeds the acceptance number for the appropriate sampling plan of ANSI/ASQC Z 1.4 (see 4.2.1), the lot represented by the sample shall be rejected. Unless otherwise specified, rejected lots may be resubmitted for accep
37、tance provided that the supplier has removed the defective containers and corrected the cause of the defects. 4.3.3 Examination of material. Each unit of the sample for examination for uniformity and workmanship (see 4.2.2) shall be poured into another clean container of the same or larger size and
38、examined for homogeneity, lumps, and foreign matter. If the number of sample units failing to meet the requirements of 3.5 equals or exceeds the rejection number corresponding to an acceptable quality level (AQL) of 4.0 percent defective under the sampling plan used, the lot shall be rejected. For T
39、ype III adhesives, the 0.70 liter (24 fluid ounce) aerosol container, conditioned at 23o + 2oC (73.5o + 3.5oF) for a minimum of 4 hours, shall be sprayed onto a non-porous surface for a minimum of 10 seconds to determine satisfactory spray properties as noted in 3.8.6. 4.3.3 Testing. Each of the sam
40、ples selected in accordance with 4.2.3 shall be subjected separately to each of the tests of 4.4 applicable to the type of adhesive specified. If the sample fails on any test, the lot shall be rejected 4.4 Test Procedures. 4.4.1 Bond strength. 4.4.1.1 Apparatus. The following apparatus shall be prov
41、ided. a. Appropriate apparatus for cutting fiberboard into panels, for spreading the adhesive uniformly over portions of these panels, for holding the bonded panels under a uniform pressure of 4 pounds per square inch, and for cutting the bonded panels into 1-inch wide specimens. Provided by IHSNot
42、for ResaleNo reproduction or networking permitted without license from IHS-,-,-6 A-A-59692 b. A room or cabinet maintained at the “standard” conditions of 23o + 2oC (73.5o + 3.5oF) and 50 % + 5 % relative humidity. c. A cold box capable of maintaining the specimens at a temperature of -40o + 2oC (-4
43、0o + 3.5oF). d. An oven capable of holding the specimens at a temperature of 60o + 2oC (140o + 3.5oF). e. A vessel of suitable dimensions, containing clean water of sufficient depth to permit the specimens to be completely immersed. This vessel shall be provided with a means of maintaining the tempe
44、rature of the water at 23o + 2oC (73.5o + 3.5oF). f. A tensile testing machine, equipped with flat or wedge grips not less than one inch wide. The machine shall have a capacity in excess of 45,359.24 g (100 lb) and a precision of + 453.59 g (1 lb) or better. It shall have a speed of pulling grip suf
45、ficient to exert a force of 45,359.24 g (100 lb) within 5 to 15 seconds after starting to apply load. (When a pendulum type testing machine is used, a speed of pulling grip of 30.48 cm (12 in) per minute will usually be found to meet this requirement.) 4.4.1.2 Test boards. Fiberboard for use in prep
46、aring the test specimens shall conform to the requirements of grade V2s of ASTM-4727 and, in addition, shall conform to the following requirements. It shall have sufficient tensile strength, after each of the conditioning procedures of 4.4.1.4, that the specimens of 4.4.1.6 will not break outside th
47、e bonded area at loads less than those specified in 3.3. Its surfaces shall be typical of those of a majority of brands of V2s board (see 6.4). They shall be neither unusually easy nor unusually difficult to wet by adhesives. They shall not have unusually loose surface fibers or surface layers (whic
48、h might be pulled from the board during the tests). 4.4.1.3 Specimen preparation. For each sample of adhesive selected in accordance with 4.2.3, four sets of ten specimens each shall be prepared. Rectangular panels measuring not less than 30.48 cm by 8.89 cm (12“ by 3-1/2“) shall be cut from the fib
49、erboards of 4.4.1.2. The shorter dimension of each panel shall be parallel with the machine dimension of the fiberboard. These panels shall be conditioned for a minimum of 24 hours under standard conditions described in 4.4.1.l b. The adhesive to be tested shall be brought to a temperature of 23o + 2oC (73.5o + 3.5oF) i
