1、MMM-A-LBLD 0 m 7777974 000b782 3 PIIMM-A- 18 1D January, 23., 1980 SUPERSEDING Fed. Spec. MMM-A-181C November 15, 1973 FEDERAL SPECIFICATION ADHESIVES, PHENOL, RESORCINOL, OR MELAMINE BASE This specification was approved by the Commissioner, Federal Supply Service, General Services Administration fo
2、r the use of all Federal. agencies. 1. SCOPE 1.1 Scope. This specification covers genetal-purpose, 2-part adhesives, or optionally a 1-part adhesive for type III (see 3.1.1), for wood assembly gluing. The adhesives are for the manufacture of laminated members and other wooden articles where a high-s
3、trength, durable adhesive is required. 1.2 Classification. 1.2.1 Types, grades, and cla.sses*. The adhesive covered by this specification shall be of the following types, grades, and classes (see 6.2) : Type I - Room-temperature setting (24O .to 35OC (75O to 95OF) glue-line temperature. Grade A - Tw
4、o-years storage life -Grade B - Six-months storage life Type II - Intermediate-temperature setting (35O to 88OC (95O to 19O0F) glue-line temperature. Grade C - Six-months storage 1PEe t FSC 8040 THIS DOCUMENT CONTAINS -1 3 PAGES 1 .- . . - : Provided by IHSNot for ResaleNo reproduction or networking
5、 permitted without license from IHS-,-,-MUM-A-LBLD 80 7797Li 000b783 5 = Class 2 - Liquid1 Class 2 - Poder1 Type III - High-temperature setting (88 to 149q (190 to 300OF) glue-line temperature Grade E - One-year storage life Class i. - Liquid1 Class 2 - Poder1 2, APPLICABLF: DCMERE 2.1 The following
6、 documents of the issues in effect on date of invitation for bids or request ?or propsal, form a part of this specification to the extent specified herein, Federal Sm?cification PPP-B-636 - Boxes, Shipping, Fiberboard PPP-C-96 - Cans, Metal, 28 Gage and Lighter (Activities outside the Federal Goverm
7、nt may obtain capies of Federal specifications, standards, and handbooks as outlined under General Information in the Index of Federal Specifications and Standards, and at the prices indi- cated in the Index, The Index, which includes cumulative monthly supplements as issued, is for sale on a subscr
8、iption basis by the Superintendent of DOCU- ments, US Govermnt Printing Office, Washington, DC 20402. (Single copies of this specification and other Federal specifications required by activities outside the Federal government for bidding pupses are available without charge from General Services Admi
9、nistration Business Service Centers in Boston, Houston, New York, Philadelphia, Washington, DC, Atlanta, Chicago, Kansas City, M, Fort Worth, Denver, San Francisco, Los Angeles, and Seattle, WA. (Federal Government activities may obtain copies of Federal specifications, standards, and handbooks and
10、the Index of Federal Specifications and Standards ?rom established distribution gmints in their agencies,) 1WE: Unless otherwise specified (see 6.2) , class 1 shall be supplied. -2- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MMM-A-LBLD 80 m 7777
11、774 0006784 7 MMM-A-18 ID Military Standard: MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. (Copies of Military Specifications and standards required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as dire
12、cted by the contracting officer.) - Laws and Regulations : Department. of Transportation .(DOT) : 49CFR 100-199 - Rules and Regulations for the Trans- . portation of Hazardous Materials (The Code of Federal Regulations (CFR) and the Federal Register (FR) are for sale on a subscription basis by the S
13、uperintendent of Documents, U,S. Government Printing Office, Washington, DC 20402. When indicated, reprints of certain regulations may be obtained from the Federal agency responsible for issuance thereof.) 2.2 Other publications. The following documents form a part of this specification to the exten
14、t 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) Standard-s: D 905 - Test for Strength Properties of Adhesive Bonds in Shear by Compression Loading. D
15、 906 - Test for Strength Properties of Adhesives in Plywood Type Construction in Shear by Tension Loading. D 1151 - Test for Effect of Moisture and Temperature on Adhesive Bonds. D 1583 - Test for Hydrogen Ion Concentration of Dry Adhesive Films. (Application for copies should be addressed to the Am
16、erican Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) National Motor Freight Traffic Association, Inc, Agent,: National Motor Freight Classification (Application for copies should be addressed to the American Association, Inc., Traffic Department, 1616 P Street, N.W.,
17、Washington, DC 20036.) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-n,iform, CLas-sif icatiofi Committee.,. agent: Uniform Freight Classif Ication (Application for copies should be addressed to the Uniform Classification Committee, Tariff Publis
18、hing Officer, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) 3. REQUI- 3.1 Material, The material used in the manufacture of the adhesive shall 3.Ll The adhesive shall be furnished as a liquid with separate hardener, be such as to produce finished adhesive conforming to this specification
19、. or when specified (see 6.2) I as a powder with separate hardener. The hardener for the type 111 adhesive may be incorporated as a component part of the resin. 3.2 Resins, used in mking the adhesive, 3.3 Insoluble matter, The quantity of insoluble matter, irrcluding filler and any insoluble partial
20、ly polymerized resin, shall be not more than 20 per- cent ky weight of the nonvolatile constituents of the adhesive when mixed and reay or use (see 4.5.1). Hardener shall be supplied in either powder or liquid form. Where the hardener is furnished in powder form, it may be combined with part or ail
21、of the-filler. The hardener shall be mixed with the adhesive prior to application to the joint. Only resins based on phenol, melamine, or resorcinol shall be 3.4 Hardener. 3.5 Filler, Where filler is used it shall be an inert, insoluble powder The imagmble of being dissolved in or being swelled exce
22、ssively by water. filler may be combined with the resin or supplied separately (see 3.3) . Amylaceous fillers such as flour or starch, and protein fillers shall not be permitted (see 4.5.2) . of set film, less thg 3.5 nor more than 10.5 when determined asqecified in 4.5.3. 3.6 The set-adhesive film
23、shall develop a pH value of not 3.7 Cleanability. The mixed adhesive shall be capable of king cleaned rom spreading equipment and containers when tested as specified in 4.5.4. 3.8 Liquid working life. Adhesive shall have a minimum working life of 2-1/2 hours at 23.945 2.8% (75O-k - 5%) , when determ
24、ined as specified in 4b5b5. -4- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.9 Curing cycle. The curing cycle of the mixed adhesives to cure to the hardened state or the tests specified in 4.5.6 and 4.5.7 shall be as follows: Type I - The curing
25、 cycle of type I adhesive shall be in accordance Type II - Thecuring cycle of type II adhesive shall be not longer with 4.5.6.1.1 or 4.5.7.1.1, as applicable. than 5 hours and with a temperature not higher than 88% (190OF) measured in the adhesive line. Type III - The curirig cycle of type III adhes
26、ive shall be not longer than 5 hours and with a temperature riot higher than 149OC (300%) measured in the adhesive line. 3.10 Shear strength by compression loading (type I and II only). The types I and II adhesive shall develop an average-shear strength of not less than 19.210 MPa (2,800 psi), using
27、 hard-maple blocks when tested as specified in 4.5.6. 3.11 Plywood shear strength. 3.11.1 Dry. than 2.76 MPa (400 psi) when tested as specified in 4.5.7.2. The adhesive shall. develop an average strength of not less 3.11.2 Wet. - The adhesive shall develop an average strength of not less than 2.76 M
28、Pa (400 psi) when tested as specified in 4.5.7.3. 3.12 Instrcictions. A label or tag with the following instructions shall be attached to each container or adhesive: (a) (b) The date of manufacture (by month and year, not by code) and the Brief instructions for the storage and care of the adhesive p
29、rior to use. maximum-storage life recommended by the manufacturer. (c) Instructioris or mixing of the adhesive and working life of the mixed adhesive, including the manufacturers recommendations on the maximuIn and minhum assembly period, for both open and close6 assembly, for at least 3 temperature
30、s, covering typical operating conditions such as 23, 24 and-.29oC (70, 75 and 85OF). - - (d) The proper use of the adhesive (see 3.9), detailing the limita- tions within which recornended pressure periods may be varied by the use of elevated temperatures during pressirq and curing periods. -5- Provi
31、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-W-A- 18l. (e) In addition, each tag or label shall contain the fllowing: “Due to the sensitivity of the adhesive to extremes of temper- ature, it is recommended that the adhesive be kept out of the sun. All
32、adhesive held in stock should be kept dry, tightly covered, an where practicable, at temperature below 27% (80OF) “Avoid inhaling vapors generated while mixing 2-part adhesive. “SKIN AND EKE IRRITANT - This material is irritating to the skin. Avoid unnecessary skin contact. Wash frequently. Do not a
33、llow material to harden on skin. flush imnediately with large quantities of water.“ If material enters eyes, 3.13 FlamBable liquid. When applicable, material classified as a flmble liquid in accordance with the Department of Transportation document 49 CFR 100-199 (Code of Federal Regulations) shall
34、also be labeled in accordance with the appropriate regulations. the requirements in 3.8, 3.9, 3.10 and 3.11, after having been stored in. accordance with 4.5.8 for the respective period as follows: Grade A - 2 years from date of manufacture Grade B - 6 months from date of mnufacture Grade C - 6 mont
35、hs from date of manufacture Grade E - 12 months from date of manufacture 3.14 Storage life. The adhesive shall be suitable for use and shall meet 3.15 Certification. When specified, the contractor shaU. submit to the procuring agency a letter stating that the resins comply with 3,3 and that storage
36、Me shall conform to 3.14. tractor has performed the storage life test (see 4.5.8). The letter shall be signed iry a responsible agent of the certifyirxj organization and shall be accanpanied by evidence of this agents authority to bind his principal, The letter shall state whether the con- 4, QUALIT
37、Y ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the con- tract or purchase order, the contractor is respnsible for the performance of all inspection requirements as specified herein, 4,2 , Unless otherwise specified by the procuring agency, for purpses of samp
38、ling, a lot shall consist of adhesive of one component, typ, grade and class, manufactured at ow time, as one batch and offered for delivery at one time. When material cannot be identifid by batch, a lot shall consist of not more than 1125 kg (2,500 pounds) of adhesive of one component, type, grade
39、and class ofered for delivery at one time. -6- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MMfl-A-L8LD 0 m 7777774 0006788 4 = M-A-18lD n 4.3 Sampling. 4.3.1 For examination. A random sample of filled containers shall be selected for examination
40、in accordance with level I of MIL-SD105. 4.3.2 For tests. A representative .95 liter (1 quart) sample of adhesive and a sufficient quantity of hardener shall be taken from each lot. the tests shall be performed on this sample. All of 4.4 Examination of packaging. An examination shall be made to dete
41、rmine compliance with the requirements of Section 5. shipping container fully prepared for delivery. ance with MIL-STD-105. quality level (AQL) of 4.0 expressed in terms of percent defective. The sample unit shall be one The inspection level shall be s-2 with an acceptable Sampling shall be in accor
42、d- 4.5 Tests. 4.5.1 Nonvolatile and insoluble content. 4.5.1.1 Nonvolatile content. Mix at least 100 g of adhesive accordirg to the manufacturers directions, weighing to the nearest 0.01 g. mately 10 g of fine, oven-dried, quartz sand in a Petri dish together with a small glass stirring rod, and wei
43、gh the dish and its contents to the nearest milligram (mg) on an analytical balance; add approximatey 2 g of the mixed adhesive, and weigh again to the nearest q. Mix the adhesive and sand inti- mately by means of the stirring rod, and distribute uniformly over the bottom of the dish in as thin a la
44、yer as possible. overnight in an oven at looo+ 5OC (212O+ 9OF) , cool, reweigh, and cal- culate the percent nonvolatile as follows: Place approxi- Heat the dish, rod and contents x 100 Percent nonvolatile = (weight of adhesive-loss in weight). weight of adhesive 4.5.1.2 Insoluble matter. Make this d
45、etermination on the same batch of mixed adhesive used for the determination of nonvolatile content (see 4.5.1.1). 4.5.1.2.1 Phenol and resorcinol resins. Weigh approximately 2 g of the freshly mixed adhesive to the nearest q in a 100 milliliter (mi.) beaker: add 50 mi of absolute Ethyl alcohol; stir
46、 for 3 minutes; then filter through a previously weighed, sintered-glass crucible of medium porosity. Transfer all residue to the filter with a second 50-nl portion of methyl alcohol; wash the. crucible and residue with approximately 30 mi. more of alcohol; dry for 2 hours in an oven at looo+ 5% (21
47、2O+ 99); cool in a desiccator; and weigh to the nearest mg. volatile content as follows: Calculate the insoluble content as a percent of the non- -7- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MMM-A-LBLD 80 777777Ll 0006789 b W-A*18l 4 Percent i
48、nsoluble = weight of residue X 100 X 100 Weight of adhesive X percent nonvolatile 4.5.1.2.2 Melmines. Weigh approximately 2 g of the freshly mixed adhesive to the nearest nq in a lOO-ml beaker; add 50 mL of a solvent composed of 20 parts of glacial acetic acid, 20 parts of 95-percent ethyl alcohol,
49、and 60 parts of distilled water by volume, minute, then add 0.5 g of diatomaceous earth1 (previously acid-washed, oven dried at LOOo+ 5% (2125 9oF) and stored in a desiccator). Continue athe stirring 2 minutes longer, then filter through a previously weighed, sintered-glasc, crucible of medium porosity. Wash all residue remaining in the beaker onto the filter with at least 30 ml of the solvent, then wash with c
