1、 - A-A-59355 9038054 O003973 838 = -Beneficial cmments, recommendations, additions, deletions, clarifications, etc., and any data which may improve this document should be sent to SA-ALC/TILDD, 485 Quentin Roosevelt Rd., Kelly AFB, TX 78241-6425 by using the Standardization Document Improvement Prop
2、osal (DD Form 1426) appearing at the end of this document. I INCH-POUNDI A-A-59355 19 October 1998 COMMERCIAL ITEM DESCRIPTION LEAK DETECTOR, HELIUM The General Services Administration has authorized the use of this Commercial Item Description (CID) for all federal agencies. 1. This detector will be
3、 used to calibrate mass spectrometers at military installations around the world. SCOPE. This document outlines the minimum requirements for a helium leak detector. 2. SALIENT CHARACTERISTICS. 2.1 General. This calibrated helium leak detector consists of a controlled source of helium ion gas traceab
4、le to the National Institute of Standards and Technology (NIST) external reference standards used in calibrating leak detectors. . 2.2 Leak rate. The leak rate is factor relates to the minimum detectable leak rate in std cclsec for helium molecules (1 std cdsec = 0.76 torr-litedsec). std cc/sec mini
5、mum detectable partial pressure of helium. This 2.3 Leak rate accuracv. The leak rate shall be less than or equal to 2 10 percent std cc/sec. 2.4 Media. The media shall be helium gas. 2.5 Tvpe of leak. External application. 2.6 Fittings. 1- 1/8-inch outside diameter compression fitting. 2.7 Value ty
6、pe. Manual isolation. AMSC NIA FSC 4940 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59355 9038054 0003972 774 A-A-5 93 5 5 2.8 Outer casing material. Corrosion-resistant stainless steel. 2.9 Calibration. Each leak detector shall be calibrated
7、 and traceable to the NIST reference standard. 2.10 Marking. As a minimum, the helium leak detector should be permanently marked with the following information: type of calibration gas for the mass spectrometer, helium leak rate, date the calibration leak was filled with gas, calibration temperature
8、 at Celsius, model number, serial number of item and manufacturer name and address. 2.1 1 Instructions. An instruction and operatiodmaintenance manual shall be provided with the detector. 3. REGULATORY REQUIREMENTS. 3.1 Recvcled. recovered. or environmentallv preferable materials. Recycled, recovere
9、d, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 4. QUALITY ASSURANCE PROVISIONS. 4. i Product conformance. The p
10、roducts provided shall meet the salient characteristics of this CID, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial market. The Government reserves the right to require proof of such confor
11、mance. 4.2 Bid samples. Bid samples are required for examination and testing to determine whether the leak detector meets the requirements in this CID, provides calibration for helium mass spectrometers, and has acceptable form, fit, function and suitability for use. Offerors shall supply one (i) sa
12、mple of the actual item proposed to be supplied under the government contract to SA-ALCRIELA, Bldg. 320,508 Shop Lane, Kelly AFB, TX 78241-6426. 5. PACKAGING. 5.1 Packa wig. preservation and packing. Packaging, preservation, and packing shall be as specified in the contract or order. 6. NOTES. 6.1 O
13、rdering data. a. b. d. e. C. Title, number and date of this CID. Calibration report (see 2.9). Instruction and operatiodmaintenance manual. (see 2.1 i). Number of bid samples required (see 4.2). Packaging requirements (see 5.1). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted
14、without license from IHS-,-,-I A-A-59355 D 9018054 0003973 600 A-A-59355 6.2 Document ordering. Copies of federal and Department of Defense specifications, standards, and handbooks are available from the Defense Automated Printing Service, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA 191 11-5094.
15、Phone (215) 697-2179. 6.3 Possible Acceptable Products. Manufacturer CAGE Model Leybold Inficon 56507 Two Technology Place East Syracuse, NY 13057-0714 MILITARY INTERESTS: Custodian: Air Force - 99 Army - AL Reviewers: Air Force - O1 DLA - CC 99077072 CIVIL AGENCY COORDINATING ACTIVITY: GSA-FSS Preparing Activity: Air Force - 82 Project 4940-0749 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
