定价： 1290元 / 折扣价： 1149 元 加购物车

定价： 1665元 / 折扣价： 1482 元 加购物车

定价： 1665元 / 折扣价： 1482 元 加购物车

定价： 1290元 / 折扣价： 1149 元 加购物车

This practice sets forth the acceptable installation and service use of solar space heating systems for one- and two-family dwellings to help ensure adequate performance, safety, and consumer satisfaction. This practice, however, does not apply to Rankine cycle, heat pump, or high pressure vapor systems, and is not intended to abridge safety or health requirements. Specifications are provided for the following system components: collector subsystems; thermal storage devices; controls and safety devices; piping, ducting, and ancillary equipment; electrical wiring; and auxiliary (nonsolar) space-heating equipment.1.1 This practice covers solar space heating systems for one- and two-family dwellings. It sets forth acceptable installation and service practices to help ensure adequate performance, safety, and consumer satisfaction.1.2 This practice is intended to describe acceptable practices for space heating systems in new and existing dwellings and shall not be construed as the optimization of good practices.1.3 This practice does not apply to Rankine cycle, heat pump, or high pressure vapor systems.1.4 This practice is not intended to abridge safety or health requirements. All systems shall be installed in accordance with local codes and ordinances.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (For specific safety precautions, see Section 6).1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 加购物车

定价： 590元 加购物车

4.1 This practice is intended to serve as a guide to manufacturers, distributors, installers, contractors, regulatory officials, and owners. It is not intended to specify detailed methods of testing, installation, or servicing for the system or any of its components.4.2 This practice sets forth those methods and components necessary for minimum operation and safety. It also suggests methods for improved operation and effectiveness.1.1 This practice provides descriptions of solar domestic water heating systems and sets forth installation and service practices in new and existing one- and two-family dwellings to help ensure adequate operation and safety.2,31.2 This practice applies regardless of the fraction of heating requirement supplied by solar energy, the type of conventional fuel used in conjunction with solar, or the heat transfer fluid (or fluids) used as the energy transport medium. However, where more stringent requirements are recommended by the manufacturer, these manufacturer requirements shall prevail.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Sections 6 and 7.1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 646元 加购物车

定价： 646元 加购物车

定价： 590元 加购物车

5.1 This specification sets forth minimum standard requirements for use in local codes and ordinances relating to public, multi-family, residential, and commercial outdoor play areas or zones and their environments.5.2 This specification does not have the effect of law, nor is it intended to supersede local codes and ordinances of a more restrictive nature.5.3 Playgrounds that intentionally incorporate water into the play area are exempt from this specification.1.1 This specification provides the recommended minimum requirements for denoting various types of fences/barriers for the protection of children's outdoor play spaces in public, commercial, and multi-family residential use locations. This specification excludes individual single family residential use play equipment locations. Interior fences located in a play area that has a perimeter fence established shall only have to comply with the latch height requirement indicated in 7.6.2.1.2 This specification provides for the safety of occupants in play areas or zones as it pertains to vehicular intrusion as well as other participant intrusion, and for children containment or entry/exit. This specification has the intent to also keep children inside a predetermined area in an effort to enhance supervision; to keep children from running out of the area into water and other hazards; to minimize the likelihood of facial lacerations on low gate and fence hardware; to minimize the likelihood of abduction; and to restrict access to railroads, highways, roads, and other such hazards.1.3 This specification does not choose the product components for the fence system, the choice of which should be made by the operators of the play space and their specification writers or drafters based upon their determination of the merits of the products that could be used.1.4 The values stated in inch-pound units are to be regarded as standard. The SI values given in parentheses are for information only.1.5 This specification does not purport to address the aspect of safety within a play area or zone. It is the responsibility of the user of this specification to establish appropriate safety practices as related to the play area and determine the applicability of regulatory requirements prior to use.1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 加购物车

定价： 646元 加购物车

4.1 A clearance examination of abatement areas and other areas associated with other lead-hazard control activities, or building maintenance or modification activities in single-family detached dwellings, individual units in multifamily dwellings, common areas or exterior sites, and child-occupied facilities is performed to determine that the clearance area is adequately safe for reoccupancy.4.2 It is the responsibility of the user of this standard to assure that all regulatory, contractual and personnel requirements are met prior to conduct of a clearance examination. At a minimum, users of this standard shall be trained in its use and in safe practices for its conduct.NOTE 2: Authorities having jurisdiction may have certification or specific training requirements, or both.4.3 This practice is one of a set of standards developed for lead hazard management activities. The visual assessment procedures required in this practice are found in Practice E2255/E2255M and the record keeping requirements are found in Practice E2239.4.4 Although this practice was primarily developed for dwellings and for other child-occupied facilities, this practice may be also applied to nonresidential buildings and related structures by agreement between the client and the individual conducting the clearance examination.4.5 This practice may be used by owners and property managers, including owner-occupants, and others responsible for maintaining facilities. It may also be used by lead hazard management consultants, construction contractors, labor groups, real estate and financial professionals, insurance organizations, legislators, regulators, and legal professionals.4.6 This practice does not address whether lead-hazard reduction activities or other building modification or maintenance work were performed properly.1.1 This practice covers visual assessment for the presence of deteriorated paint, surface dust, painted debris, and paint chips with environmental sampling of surface dust to determine whether a lead hazard exists at the time of sample collection, following lead-hazard reduction activities, or other building maintenance and modification activities.1.2 This practice addresses clearance examination of single-family detached dwellings (including exterior structures, such as fences), individual units in multifamily dwellings, common areas or exterior sites, and child-occupied facilities.1.3 This practice also addresses clearance examinations that may include soil sampling, for example when soil abatement has been performed.1.4 This practice includes a procedure for determining whether regulatory requirements for lead clearance levels for dust and, where warranted, soil have been met, and consequently, whether a clearance area passes or fails a clearance examination.NOTE 1: This practice is based on that portion of “clearance” described for the United States in 40 CFR Part 745 for abatement, and in 24 CFR Part 35 for lead-hazard reduction activities other than abatement.1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

定价： 590元 加购物车

定价： 2081元 / 折扣价： 1853 元 加购物车

定价： 2081元 / 折扣价： 1853 元 加购物车

定价： 2081元 / 折扣价： 1853 元 加购物车