MIL-STD-188/141C Interoperability and Performance Standards for Medium and High Frequency Radio Systems modified by new Change 1

MIL-STD-188/141C, “Interoperability and Performance Standards for Medium and High Frequency Radio Systems,” has just been released with Change Notice 1 interfiled and is available from Document Center Inc. to download or purchase in paper format.  Changes to this standard were clerical in nature and do not impact the technical content of the document.

Graphic of some figures were redrawn where some labeling was missing and text blurred. The Table of Contents was updated remove listed paragraphs which no longer applied to the document.

The purpose of MIL-STD-188/141 is to establish technical performance and interface parameters in the form of firm requirements and optional design objectives (DO) that are considered necessary to ensure interoperability and interface standardization of new long-haul and tactical radio systems in the medium frequency (MF) band and in the high frequency (HF) band. It is also the purpose of the standard to establish a level of performance for new radio equipment that is considered necessary to satisfy the requirements of the majority of users.

These technical parameters represent a minimum set of interoperability, interface, and performance standards. They may be exceeded in order to satisfy certain specific requirements, provided that interoperability is maintained. That is, the capability to incorporate features such as additional standard and nonstandard interfaces is not precluded.

This standard is approved for use within the Department of Defense (DoD) in the design and development of new MF and HF radio systems. It is not intended that existing equipment and systems be immediately converted to comply with the provisions of this standard.

However, this standard establishes requirements for new equipment and systems, and those undergoing major modification or rehabilitation. If deviation from this standard is required, the user should contact the lead standardization activity for waiver procedures.

All current and many obsolete Military Standards can be purchased in both paper and pdf format from Document Center Inc. at our website, www.document-center.com.  Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We’ve been selling these documents for over 30 years and can assist you not only with procuring the document, but with information about the standards as well.

New ISO 2919 2012 3rd Edition, Radiological protection – Sealed radioactive sources – General requirements and classification

The new 3rd edition for ISO 2919, “Radiological protection – Sealed radioactive sources – General requirements and classification,” has just been released and is now available from Document Center Inc.  The 26 page standard establishes a classification system for sealed radioactive sources that is based on test performance and specifies general requirements, performance tests, production tests, marking and certification.  This third edition cancels and replaces the second edition (ISO 2919:1999), which has been technically revised.

ISO 2919 provides a set of tests by which manufacturers of sealed radioactive sources can evaluate the safety of their products in use and users of such sources can select types which are suitable for the required application, especially where protection against the release of radioactive material, with consequent exposure to ionizing radiation, is concerned.  ISO 2919:2012 can also serve as guidance to regulating authorities.

The tests fall into several groups, including exposure to abnormally high and low temperatures and a variety of mechanical tests. Each test can be applied in several degrees of severity. The criterion of pass or fail depends on leakage of the contents of the sealed radioactive source.

Although ISO 2919:2012 classifies sealed sources by a variety of tests, it does not imply that a sealed source will maintain its integrity if used continuously at the rated classification. For example, a sealed source tested for 1 h at 600° C might, or might not, maintain its integrity if used continuously at 600° C.

A list of the main typical applications of sealed radioactive sources, with a suggested test schedule for each application, is given in Table 3.  The tests constitute minimum requirements corresponding to the applications in the broadest sense. Factors to be considered for applications in especially severe conditions are listed in section 4.2.

ISO 2919:2012 makes no attempt to classify the design of sources, their method of construction or their calibration in terms of the radiation emitted. Radioactive materials inside a nuclear reactor, including sealed sources and fuel elements, are not covered.

Safety is the prime consideration when establishing standards about the use of sealed radioactive sources.  Sealed-source users have established an enviable record of safe usage as a result of careful scrutiny of the conditions of application of the sealed radioactive source by the regulating authority, the supplier and the user. However, as the application of sealed radioactive sources becomes more diversified and as regulating agencies become more numerous, ISO 2919 is needed to specify the characteristics of a sealed radioactive source and the essential performance and safety testing methods for a particular application and maintain the record of safe usage.

All ISO standards, technical specifications and technical reports can be purchased from Document Center Inc.’s website, www.document-center.com.  Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We can assist you with information on both current and obsolete editions.

New ASTM F109 2012 Edition, Standard Terminology Relating To Surface Imperfections On Ceramics

ASTM F109-12, “Standard Terminology Relating To Surface Imperfections On Ceramics,” has just been released and is now available from Document Center Inc.  This 12-page terminology standard describes and illustrates imperfections observed on whitewares and related products.

Terms defined in ASTM F109 include not only a written description, but also a small graphic to illustrate the definition.  The last modification of the standard was in March 2011, however this new release cancels and replaces that edition.

For additional definitions of terms relating to whitewares and related products, refer to Terminology Standard ASTM C242. To observe these defects, examination is to be performed visually, with or without the aid of a dye penetrant, as described in Test Method ASTM C949.

Agreement by the manufacturer and the purchaser regarding specific techniques of observation is strongly recommended.

All current ASTM standards and many obsolete revisions are available from Document Center Inc.’s website, www.document-center.com.  Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  Any time you’re interested in an obsolete edition on our website, you’ll get a quote first so that we can confirm that you do indeed need a cancelled document and to also provide you with price and availability information.

New SAE J30 2012 Edition on Fuel and Oil Hoses

SAE J30, “Fuel and Oil Hoses,” has just been released as the new 2012 Edition and is available from Document Center Inc. now.  This SAE standard covers fuel, oil, or emission hose for use in coupled and uncoupled applications.

SAE J30 2012 Edition is be be used with gasoline, oil, diesel fuel, lubrication oil, or the vapors present in either the fuel system or in the crankcase of internal combustion engines in mobile or stationary applications. This standard covers the hose portion only. If assembly / coupling is required, that is to be agreed to between the customer and assembler, along with the specific requirements.

The document is the EPA sited and recommended test procedure for permeation testing of fuel lines used in lawn & garden equipment.  It’s part of SAE’s ground vehicle standards collection.  Oversight for the document is provided by the Non-Hydraulic Hose Committee.

The new 2012 edition is available from Document Center Inc. on our website, www.document-center.com.  Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We’ve been helping people like you with standards questions and purchases for 30 years now.  We’re your Standards Experts!

New ASME B16.11 2011 Edition just released for Forged Fittings, Socket-Welding and Threaded

ASME B16.11, “Forged Fittings, Socket-Welding and Threaded,” has just been released as a new 2011 Edition.  This standard covers ratings, dimensions, tolerances, marking and material requirements for socket-welding and threaded forged fittings.  It’s available from Document Center Inc. now.

These fittings are designated as Class 2000, 3000, and 6000 for threaded end fittings and Class 3000, 6000, and 9000 for socket-weld end fittings.

Customers are sometimes surprised when an edition has one year on the cover but is actually released the following year, as is ASME B16.11.  This just means that the standard was accepted by the association in one year, but actually public distribution was delayed by the publication process until the following year.

ASME B16.11-2011 is intended for manufacturers, owners, employers, users and others concerned with the specification, buying, maintenance, training and safe use of wrought and forged fittings with pressure equipment, plus all potential governing entities.

ASME standards can be purchased from Document Center Inc. via our website, www.document-center.com.  Or consider contacting us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We can supply both current and obsolete revisions.

IPC-J-STD-004B for Requirements for Soldering Fluxes now shipping with Amendment 1 interfiled

IPC-J-STD-004B, “Requirements for Soldering Fluxes,” is now shipping with Amendment 1 from November 2011 interfiled into the body of the standard.  The consolidated standard, as well as the stand-alone amendment 1, are both available from Document Center Inc. now.

Amendment 1 to the J-STD-004 corrects editorial mistakes throughout the document and addresses Halogen-free and Halide-free terminology and requirements in fluxes.

This standard itself prescribes general requirements for the classification and characterization of fluxes for high quality solder interconnections. This standard may be used for quality control and procurement purposes.

The purpose of the document is to classify and characterize tin/lead and lead-free soldering flux materials for use in electronic metallurgical interconnections for printed circuit board assembly.  Soldering flux materials include the following: liquid flux, paste flux, solder paste, solder cream, and flux-coated and flux-cored solder wires and preforms.

All IPC standards are available from Document Center Inc. at our website, www.document-center.com.  We are also available by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  Being in Silicon Valley has meant that we have been selling electronics standards since our founding in 1982.  We have the expertise to assist you with your standards requirements for these compliance documents.

New AWS A2.1 2012 Edition, The Welding Symbols Wall and Desk Charts

AWS has released AWS A2.1 Welding Symbols Desk and Wall Charts to accompany the new Edition of AWS A2.4-2012 Welding Symbols standard.  The easy to read laminated desk chart and wall chart compliment AWS A2.4 :2012, the new Standard Symbols for Welding, Brazing, and Nondestructive Examination.  All these new issues are available now from Document Center Inc.

The charts are perfect for desktop, drafting table, shop, or classroom use. The wall chart is 22″ x 28″ and the desk chart is 11″ x 17″.  And there is even an extra large wall chart that comes in at 27″ X 36″.  All charts can be purchased separately, or there’s a set of the wall chart and desk chart available as well.

When you’re ready to purchase the 2012 edition of the AWS A2.4, don’t forget to update your charts as well.  There’s no sense in having out-dated information lingering where staff may be referring to it on a daily basis.

Go ahead and order on our website, www.document-center.com.  Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We’re here to help you with all your standards requirements.

New A-A-55697 Revision B, Tube, Nonmetallic; Polyvinyl Chloride (PVC) Flexible (for Laboratory and Medical Use)

Commercial Item Description A-A-55697 titled “Tube, Nonmetallic; Polyvinyl Chloride (PVC) Flexible (for Laboratory and Medical Use) ” has just been updated.  The new 8-page Revision B is available now from Document Center Inc.

This commercial item description (CID) covers the general requirements for clear flexible PVC tubing. Clear flexible PVC tubing covered by A-A-55697B is intended for commercial/industrial applications in medical and laboratory application, including fluid signals, low pressure air, gas, and vacuum but not limited to medical transfusions and infusions.

As part of the market analysis and research effort, this CID was coordinated with a number of manufacturers of commercial products. This is because a CID is intended to allow the government to purchase items that are readily available in the general marketplace.  The manufacturers are listed at the end of the specification.

Another thing to note is that we are seeing a number of government document change in response to EPA efforts on reducing 31 priority chemicals.  As one of those documents, this new revision states that environmentally preferable materials should be used to the maximum extent possible to meet its requirements.

The list of chemicals is available on the EPA website at http://www.epa.gov/epawaste/hazard/wastemin/index.htm. Included in the EPA list of 31 priority chemicals are cadmium, lead, and mercury.  Use of the materials on the list should be minimized or eliminated.

CID’s and all publicly distributed federal level government documents are available from Document Center Inc. on our website, www.document-center.com.  Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We got our start in the military specifications and standards business and are one of your best sources for expert information on these documents.

BS EN 60601-1 2006 Edition on Medical electrical equipment — General requirements for basic safety and essential performance is now modified by Amendment A11

BS-EN-60601-1, “Medical electrical equipment. General requirements for basic safety and essential performance,” has just been re-released in a new edition and is now available from Document Center Inc.  This British Standard is the UK implementation of EN 60601-1:2006+A11:2011. It is identical to IEC 60601-1:2005.  It supersedes BS EN 60601-1:2006, which is to be withdrawn on October 1st, 2014.

Implementation of CENELEC amendment A11:2011 includes the following: Annex ZZ has been replaced by Annexes ZZA, Coverage of Essential Requirements of EC Directives (93/42/EEC), and ZZB, Coverage of Essential Requirements of EC Directives (90/385/EEC).  The two new Annexes are informative, each providing illumination on how the standard helps to meet the requirements of the directive noted.

Also, BS EN 60601-1:2006+A11:2011 changes the latest date by which any national standards conflicting with this EN standard have to be withdrawn, making the new due date October 1, 2014.

As noted in previous blogs, BS EN 60601-1 contains requirements concerning basic safety and essential performance that are generally applicable to medical electrical equipment. It is one of our top-sellers here at Document Center and can be ordered on our website, www.document-center.com.  Or order via phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We’re here from 6 am to 5 pm Monday through Friday Pacific Time to assist you with all your questions regarding European Standards and Regulations.

 

New MIL-STD-1130 Revision C, “Connections, Electrical, Solderless Wrapped,” replaces MIL-STD-1130B

The U.S. Defense Department released the new Revision C for MIL-STD-1130, “Connections, Electrical, Solderless Wrapped.”  The 21 page standard replaces MIL-STD-1130B and is now available from Document Center Inc.  The document identifies the requirements for proper wire wrapping techniques to ensure adequate connection between wire and wrappost terminations for military wire wrap connector applications.

The standard was actually canceled in 1999 and only reinstated on August 16, 2010.  This new revision is the first change to the standard since that time.

MIL-STD-1130C establishes the requirements to produce mechanically and electrically stable, solderless wrapped, electrical connections made with single, solid, round wire and appropriately designed wrapposts (terminals).

This standard includes:
a. Classes and requirements for solderless wrapped connections.
b. Description and requirements for the wire used in making the solderless wrapped connections.
c. Description and requirements for the wrappost used in making the solderless wrapped connections.

MIL-STD-1130 also covers the following classes of solderless wrapped, electrical connections:
Class A – Solderless wrapped, electrical connections.
Class B – Conventional solderless wrapped, electrical connections. FYI: Class A will be used whenever possible.

Changes in the new revision are extensive, so there’s no notation in the margins of the new standard to highlight areas where revisions were made.

This new military standard and all publicly distributed (non-classified) current DoD publications, as well as many obsolete revisions, are available at our website, www.document-center.com.  Or consider contacting us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  Over the years, we’ve helped tens of thousands of customers with their contract documentation requirements.