DOD A-A-51274-1986 RING LABORATORY APPARATUS SUPPORT《实验仪器支撑环》.pdf

1、A-A-512743 September 1986COMMERCIAL ITEM OESCRIPTIL)NRING, LABORATORY APPARATUS SUPPORTThe General Services Administration has authorized the useof this canmercial item description in preference toFederal Specification NNN-R-370.This commercial item description covers one type of laboratory apparatu

2、s supportr ring. Salient characteristics:The laboratory apparatus support ring shal1 be a closed metal ring suitable foruse with laboratory apparatus support stands having rods Up to 1/2 inch indiameter.Shal1 have.the following dimensions as listed in Table I.TABLE I,0 Outer Oiameter* Inner Diameter

3、*I Size (inches) (inches)1 3 2-1/22 4 3-1/23 5 4-3/8I *Tolerance, 1/32 inch.I Shal1 be fabricated of a suitable metal material that wil1 withstand laboratoryprocedures. The finish shall be in gray or black Japan enamel. Shall be providedwith an integral clamping device consisting of 2 planar surface

4、s at right anglesto each other to accoinnodatea 1-1/2 inch long thumb screw. The thumb screwsshall be fabricated of a corrosion-resistant metal . Shal1 be designed so thatdifferent diameter rings shall be concentric when clamped to the same support rod.! The distance fran the center of the ring to t

5、he center of the support rod shal1 bea ncminal 4-1/2 inches. Support rings shall ave no sharp edges or castingdefects. The support rings shal1 be level 13 when attached tosupport rod.The inner periphery of the ring haviny a circular cross section!0with three equally spaced projections. If rectangula

6、r, the topedge shal1 be beveled to hold round bottom ObJeCtS.a horizontalmay be providedinner peripheralDISTRIBUTION STATEMENT A.FSC 6640Approved for public release; distribution is unlimited,Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-COMMERCIAL

7、 ITEM DESCRIPTION A-A-51274Workmanship. The support ring shall be free frcsndefects which detract fran itsappearance.or impair its serviceability.a71 Each (EA). One ring, of the size specified, constitutes one unit.Quality Assurance Provisions.Responsibility for inspection. Unless otherwise specifie

8、d in the contract orpurchase order, he contractor 1s responsible.for the performance of all inspectionrequirements as specified herein. Except as otherwise specified in the contract orpurchase order, the contractor may use his own or any facilities suitable for theperformance of the inspection requi

9、rements specified herein, unless disapproved bythe Government. The Government reserves the right to perform any of the inspectionsset forth inthe specification where such inspections are deemed necessary to assuresupplies and services conform to prescribed requirements.Records. . Records of examinat

10、ions and tests performed by or for the contractorshal1 be maintained by the contractor and made available to the Government upon theGovernment s request, at any time, or from time to time, during the performance ofthe contract and for a period of three years after delivery of the supplies to whichsu

11、ch records relate.Inpectio;5 InspectIons, as used herein, is defined as both examination (such asvisua or au 1 ory investigation without the use of special laboratory appliances orprocedures) and testing (determination by technical means of physical and chemicalproperties) of the item. a71Sampling f

12、or inspection. Sampling for inspection shal1 be conducted inaccordance with MIL-STD-105. Where feasible, the same sample shall be usedfor the determination of two or more inspection characteristics. Unlessotherwise specified, sampling for examination shall be conducted at inspectionlevel S-2, AQL 2.

13、5, and sampling for tests (when applicable) shall be conductedat inspection levelS-1, AQL 1.0.Tests. Tests shal1 be conducted to determine compliance with s edificationrequirements. EWhere feasible, the same sample shall be used for t edetermination of two or more test characteristics.Contractor cer

14、tification. The contractor shal1 certify that the product offeredmeets he saIlent characteristics of this description and conforms to the Droducersown drawings, specifications, standards, and quality assurance practices. TheGovernment reserves the right to require proof of such conformance prior to

15、firstdelivery and thereafter as mav be otherwise orovided for under the provisions of thecontrac.Regulatory requirements.Federal Food, Orug and Cosmetic Act. If the product covered by thishas been determined bv the U. S. Food and Drua Administration to be underdacumentitsjurisdiction, the off&ar/con

16、tractor shal1 cply, and be responsible for canplianceby its subcontractors/suppliers, with the requirements of the Federal Food, Orug andCosmetic Act, as amended, and regulations promulgated thereunder. In addition, theafferor/contractor shall canply, and be responsible for ccsnplianceby its a71subc

17、ontractors/suppliers, with the requirements of al1 other applicable Federal,State, and lacal statutes, ordinances, and regulations.2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-COMMERCIAL ITEM DESCRIPTION A-A-51274a71IIRecovered materials. The off

18、eror/contractor is encouraged to use recoveredmaterial in accordance with Public Law 94-580 to the maximum extent practical.Preservation, packaging, packing, labeling, and markin . Unless otherwise specified,preservation, packaging, and packing shall be to a degee of protection to precludedamage to

19、containers andlor contents thereof under normal shipping conditions,handling, etc., involving shipment frcm the supply source to the receiving activity,plus reshipment from receiving activity, and shall conform to applicable carriersrules and regulations. Intermediate and exterior package quantities

20、 and labeling andmarking shal1 be as specified in the contract and/or order.The following National Stock6640-00-440-13156640-00-440-13256640-00-440-1340Numbers are covered by this document:RING, LABORATORY APPARATUS SUPPORT,Size 1RING, LABORATORY APPARATUS SUPPORT,Size 2RING, LABORATORY APPARATUS SU

21、PPORT,SizeOrdering data (Intermediate/exterior packagebe specified in the contract and/or order).MILITARY INTERESTS:Custodians:Army-MDNavy-MSAir Force-03CIVIL AGENCY COORDINATING ACTIVITY:VA-OSS3quantities and labeling and marking mustPREPARING ACTIVITY:00D-M8Agent:OLA-OMProject No. 6640-1343Location S3-8-12*us.L30VERNMENT PRIP+mNO omc mm - Luw.0a6146071a713Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-