ASTM is an independent, not-for-profit standards-writing organization. They promulgate standards in many diverse technical disciplines. ASTM is the forum for a majority of standards in the USA, especially those related to plastic materials and products testing. ASTM writes standards and conducts educational training seminars (specifications, test methods and guides). ASTM does not conduct testing, listing, certifying, or enforcement of its standards. [Back]

Answer: The AISI (American Iron and Steel Institute) was the originator of the 300 and 400 series numbering system (i.e., Type 304 stainless steel). They also published a Stainless Steel products manual that listed these designations and the chemical analysis as well as most mechanical and physical properties of each individual grade. They are NOT specifications as such, just definitions of the individual grades. See similar questions...

ASTM E679 is an ASTM International standard method for determination of odor thresholds. This standard was first published in 1979 as E679-79, when it replaced the static threshold "Syringe Method", ASTM D1391. In 1991, minor revisions were made and the standard was renumbered E679 -91. Most recently, in 2004, additional examples were added to the standard and the newest revision is published as E679-04. See similar questions...

Organized in 1898, ASTM International is one of the largest voluntary standards developing organizations in the world. ASTM is a not-for-profit organization that provides a forum for the development and publication of voluntary consensus standards for materials, products, systems, and services. See similar questions...

Simply contact ASTM International Headquarters at +1 610/832-9500 or visit www.astm.org. Informational and participating memberships cost $75; organizational membership is $400. See similar questions...

Approximately 75% of ASTM’s income is derived from the sale of publications, primarily from standards. Other income is derived from annual administrative fees, and standards-related programs. ASTM does not verify that products are tested according to a standard. Many manufacturers, however, choose to indicate that a product has been tested according to an ASTM standard by providing such information on product labels or packaging. See similar questions...

Membership in ASTM is unrestricted and limited only by the boundaries of your interest in a particular area of standardization. See similar questions...

Synonyms: any single item on the Diseases Database can have many 'names'. Thus you will find chronic obstructive pulmonary disease if you search for it as COAD, COPD or chronic obstructive airways disease. Equivalents: e.g. hyperbilirubinaemia and jaundice. One is a physical sign , the other a biochemical abnormality. The threshold for clinically observable jaundice is higher than the upper limit of normal for serum bilirubin. See similar questions...

The idea of wish is that you read from <STDIN> and evaluate each statement. The standard way to do this in Perl/Tk is to use the tkpsh script that comes in your Perl/Tk build directory. Another elegant way to get wish like behavior in Perl/Tk is to use rmt which you can find in perl5/Tk/demos in your Perl/Tk distribution. When you run rmt you already have Tk.pm set up for you so you can start typing things like $mmm = new MainWindow; etc. at the rmt: prompt. See similar questions...

Every lens has a focal length which is a physical property of the lens. Once the lens is made, this cannot be changed. The field of view associated with a lens will be a function of the area projected by the lens that is captured by the camera. For 35mm film photography, this area is 36mm by 24mm. Note that if you change the area captured, the field of view also changes. See similar questions...

The Access Board’s standards provide that agencies may accept EIT offered by vendors which uses designs or technologies that do not meet the applicable technical provisions in Subpart B but provide substantially equivalent or greater access to and use of a product for people with disabilities. (See 36 CFR 1194.5.) This is referred to as "equivalent facilitation." Equivalent facilitation is not an exception or variance from the requirement to provide comparable access. See similar questions...

The easiest way to meet a prerequisite is to take the prerequisite at LBCC. For example, a student would normally take CHEM 1A at LBCC prior to enrolling in CHEM 1B. If the student took a course at another college which was equivalent to LBCC's CHEM 1A, it can be used to meet the prerequisite requirement for CHEM 1B. See similar questions...

For reference types, the equivalent of VB's Nothing is C#'s null. For value types, it's the default value - 0, false, etc. See similar questions...

Variant Creutzfeldt-Jacob Disease (vCJD) was first diagnosed in 1996. It is now generally assumed to be caused by the transmission of BSE to humans. There are 99 confirmed or suspected cases in the EU to date, mostly in young people. All cases have occurred in the UK with the exception of France (3) and Ireland (1)). Estimates of the future number of vCJD cases vary widely as too little is known about the incubation period between exposure to the infective agent and the emergence of symptoms. See similar questions...

Population Equivalent relates to non domestic sewage treatment plant applications. For example an office with 30 workers is equivalent to 10 domestic residents. i.e. the PE is 10. This becomes more complicated for Pubs/Hotels etc. Please refer to the programme on this site for specific details. Pubs typically have a PE in the range 40-200. See similar questions...

A-14: The actuarial adjustment necessary to convert a participant's benefits into different forms and/or payment periods so that the total value of a participant's pension benefits remains equal (on an actuarial basis) regardless of the form of benefit or the commencement date the participant may elect. See similar questions...

Equivalent hours are the parameter used to express a wind farms exploitation. It constitutes the equivalent relationship between the operational time of the machine and its nominal potential. The best placed wind frames in Spain register an operational average of 2,830 hours; some frames exceed 3,000 hours/year of real generation. See similar questions...

Equivalent credit is granted for knowledge gained from either work-related or other qualifying experience. It is the learning and not the experience itself that must be documented to prove that it is at the college level and serves as a valid substitution for the content of a specific course as outlined in the Undergraduate Bulletin. Students must file a formal application for credit and follow the guidelines established by the Equivalent Credit Committee of the College. See similar questions...

The ASTM standards that address the manufacture of the different types of copper tube allowed for fuel gas distribution do not require that the tube carry the ASTM logo or stamp, or standard designation. These standards do outline specific product identification requirements for copper tube made to these standards. This generally includes marking of the tube to include the type of tube (K, L, M, ACR, etc.), name or trademark of the manufacturer, or both, and the country of origin. See similar questions...