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22-424: DPM may refer to: Science and technology [ edit ] Damp-proof membrane , a membrane material applied to prevent moisture transmission Defects per million opportunities in manufacturing Diesel particulate matter , an occupational hazard due to diesel exhaust Di(propylene glycol) methyl ether , chemical compound Discrete particle method , any of

44-764: A barcode methodology used in many industries Diversified Project Management Profession [ edit ] Deputy Prime Minister Diploma in Psychological Medicine Doctor of Podiatric Medicine Doctor of Project Management Doctor of Plant Medicine Doctor of Pastoral Music, in Doctor of Musical Arts Other uses [ edit ] DPM. a variant of the Soviet Degtyaryov machine gun Detroit People Mover , an automated people mover system Democratic Party of Macedonians ( Demokratska partija Makedonaca ),

66-499: A building; vapor barriers , a separate category, keep interior moisture from getting into walls. Moisture resistance is not necessarily absolute; it is usually stated in terms of acceptable limits based on engineering tolerances and a specific test method . Damp proofing is accomplished several ways including: Materials widely used for damp proofing include: A DPC is a durable, impermeable material such as slate, felt paper , metal, plastic or special engineered bricks bedded into

88-498: A family of numerical methods Disintegrations per minute , a measure of the activity of the source of radioactivity Disappearing Positive Methodology, state-sponsored subversion of drug testing processes in Russian doping programme Computing [ edit ] Data position measurement Digital Postmarks System Center Data Protection Manager , by Microsoft Business [ edit ] Direct part marking ,

110-453: A group of scientists and engineers , led by Charles Dudley , formed ASTM to address the frequent rail breaks affecting the fast-growing railroad industry. The group developed a standard for the steel used to fabricate rails. In 1961, originally called the "American Society for Testing Materials" it was changed to "American Society for Testing And Materials". In 2001, ASTM officially changed its name to "ASTM International" and added

132-757: A political party in Serbia Disappearing Positive Methodology, in the McLaren Report Direct part marking , permanently marking parts with product information Disruptive Pattern Material , a camouflage pattern used by the British Armed Forces and others German Tank Museum , (German: Deutsches Panzermuseum Munster ) Daniel Patrick Moynihan , American politician See also [ edit ] DPMS (disambiguation) Deutscher Pfadfinderbund Mosaik (DPBM) Topics referred to by

154-479: A substantial waiting-list of producers seeking organizational memberships on the more popular committees. Members can participate without a formal vote and their input will be fully considered. As of 2015, ASTM has more than 30,000 members, including over 1,150 organizational members, from more than 140 countries. The members serve on one or more of 140+ ASTM Technical Committees. ASTM International has several awards for contributions to standards authorship, including

176-521: A suspended timber floor structure), or, with a solid concrete floor, it is usually found immediately above the floor slab so that it can be linked to the DPM under the floor slab. This enables installation of skirting boards above floor level without fear of puncturing it. Alternatively, instead of fitting separate inner and outer DPCs, it is common in commercial housebuilding to use a one-piece length of rigid plastic (with an angled section) that fits neatly across

198-557: A thinned asphalt called cutback asphalt, or an elastomer . Membranes are rubberized asphalt or EPDM rubber . Rubberized products perform better because concrete sometimes develops cracks and the barrier does not crack with the concrete. Until the 20th century, masonry buildings in Europe and North America were generally constructed from highly permeable materials such as stone and lime -based mortars and renders covered with soft water-based paints which all allowed any damp to diffuse into

220-567: Is voluntary and is initiated by the member's request, not by appointment or invitation. Members are classified as users, producers, consumers, and "general interest". The latter includes academics and consultants. Users include industry users, who may be producers in the context of other technical commodities, and end-users such as consumers. To meet the requirements of antitrust laws, producers must constitute less than 50% of every committee or subcommittee, and votes are limited to one per producer company. Because of these restrictions, there can be

242-648: Is a standards organization that develops and publishes voluntary consensus technical international standards for a wide range of materials, products, systems and services. Some 12,575 apply globally. The headquarters is in West Conshohocken, Pennsylvania , about 5 mi (8.0 km) northwest of Philadelphia . It was founded in 1902 as the American Section of the International Association for Testing Materials. In 1898,

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264-580: Is different from Wikidata All article disambiguation pages All disambiguation pages Damp-proof membrane Damp proofing is defined by the American Society for Testing and Materials (ASTM) as a material that resists the passage of water with no hydrostatic pressure . Waterproof is defined by the ASTM as a treatment that resists the passage of water under pressure. Generally, damp proofing keeps exterior moisture from entering

286-479: Is usually a DPC in both the outer and inner wall. In the outer wall it is normally 150 millimetres (5.9 in) to 200 mm (7.9 in) above ground level (the height of 2-3 brick courses). This allows rain to form puddles and splash up off the ground, without saturating the wall above DPC level. The wall below the DPC may become saturated in rainy weather. The DPC in the inner wall is usually below floor level, (under

308-862: The ASTM International Award of Merit (the organization's highest award) ASTM International is classified by the United States Internal Revenue Service as a 501(c)(3) nonprofit organization. ASTM International has no role in requiring or enforcing compliance with its standards. The standards may become mandatory when referenced by an external contract, corporation, or government. In the United States, ASTM standards have been adopted, by incorporation or by reference, in many federal, state, and municipal government regulations. The National Technology Transfer and Advancement Act , passed in 1995, requires

330-417: The air without damage. The later application of impermeable materials which prevent the natural dispersion of damp, such as tile , linoleum , cement and gypsum -based materials and synthetic paints is thought by some to be the most significant cause of damp problems in older buildings. There are many solutions for dealing with dampness in existing buildings, the choice of which will largely be determined by

352-399: The cavity and slots into both walls (a cavity tray). This method requires weep vents to enable water to drain from the cavity, otherwise dampness could rise from above the DPC. Concrete normally allows moisture to pass through so a vertical vapor barrier is needed. Barriers may be a coating or membrane applied to the exterior of the concrete. The coating may be asphalt , asphalt emulsion,

374-475: The federal government to use privately developed consensus standards whenever possible. The Act reflects what had long been recommended as best practice within the federal government. Other governments have also referenced ASTM standards. Corporations doing international business may choose to reference an ASTM standard. All toys sold in the United States must meet the safety requirements of ASTM F963, Standard Consumer Safety Specification for Toy Safety, as part of

396-403: The mortar between two courses of bricks or blocks. It can often be seen as a thin line in the mortar near ground level. To create a continuous barrier, pieces of DPC or DPM may be sealed together. In addition, the DPC may be sealed to the DPM around the outside edges of the ground floor, completely sealing the inside of the building from the damp ground around it. In a masonry cavity wall , there

418-449: The same term [REDACTED] This disambiguation page lists articles associated with the title DPM . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=DPM&oldid=1113398748 " Category : Disambiguation pages Hidden categories: Articles containing German-language text Short description

440-607: The tagline "Standards Worldwide". In 2014, the tagline changed to "Helping our World Work better." Now, ASTM International has offices in Belgium, Canada, China, Peru, Washington, D.C., and West Conshohocken, PA. In April of 2016, the Safety Equipment Institute (SEI) became a subsidiary of ASTM International. SEI is an accredited third-party certification organization that certifies various types of PPE to industry consensus standards. On June 9, 2022, it

462-562: The types of dampness that are affecting the building, e.g. , rising damp, hygroscopic damp, condensation, penetrating damp , etc. In older buildings, damp stains on internal walls are usually due to external factors such as: Some DPC materials may contain asbestos fibres. This was more commonly found in the older, grey sealants as well as flexible tar boards. [REDACTED] Media related to Damp proofing at Wikimedia Commons ASTM International ASTM International , formerly known as American Society for Testing and Materials ,

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484-467: Was announced that the European Committee for Standardization (CEN) and ASTM International agreed to extend and expand a Technical Cooperation Agreement from 2019. Membership in the organization is open to anyone interested in its activities. Standards are developed within committees, and new committees are formed as needed, upon request of interested members. Membership in most committees

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