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This document specifies conceptual schemas for describing the spatial characteristics of geographic entities, and a set of spatial operations consistent with these schemas. It treats "vector" geometry and topology. It defines standard spatial operations for use in access, query, management, processing and data exchange of geographic information for spatial (geometric and topological)…

1 Scope This part of IEC 60974 specifies safety and performance requirements applicable to limited duty arc welding and cutting power sources and auxiliaries designed for use by laymen. Electrically powered equipment is intended to be connected to the single phase public lowvoltage supply system. Engine driven power sources cannot exceed output power of 7,5 kVA. NOTE 1 This equipment is…

1 Scope This part of IEC 61730 specifies and describes the fundamental construction requirements for photovoltaic (PV) modules in order to provide safe electrical and mechanical operation. Specific topics are provided to assess the prevention of electrical shock, fire hazards, and personal injury due to mechanical and environmental stresses. This part of IEC 61730 pertains to the particular…

1 Scope The scope of IEC 61730-1 is also applicable to this part of IEC 61730. While IEC 61730-1 outlines the requirements of construction, this part of the standard lists the tests a PV module is required to fulfill for safety qualification. IEC 61730-2 is applied for safety qualification only in conjunction with IEC 61730-1. The sequence of tests required in this standard may not test for…

1 Scope 1.1 This Standard applies to gas convenience outlets, hereinafter referred to as gas outlets and optional enclosures, not to exceed 1-1/2 in (38.1 mm) and pressures not to exceed 5 psi (34.5 kPa), capable of operation at temperatures between 32 °F and 200 °F (0 °C and 93.3 °C) if intended for indoor use only, or between –20 °F and 200 °F (–28.8 °C and 93.3 °C) if intended for indoor/…

1 Scope 1.1 This Standard applies to newly produced gas selector devices (see Clause 3), herein after referred to as a “device”, constructed entirely of new, unused parts and materials. 1.2 The device may include functions such as selection of type of gas to operate the appliance and main burner primary air adjustment. The device may also contain multiple passageways that can be selected to…

1 Scope 1.1 Inclusions of the Standard 1.1.1 Purpose of this Standard The purpose of this Standard is to provide compliance criteria and guidance on the design of flood- resilient new residential communities as it relates to greenfield development only. 1.1.2 Building types This Standard is applicable to the following building types: a) detached homes; b) semi-detached homes; c) row…

1 Scope 1.1 This Standard provides requirements for the planning, design, construction, commissioning, operation, and maintenance of HVAC systems in HCFs. In general, these requirements are more stringent than those applied to non-health care facilities. Note: See Annex A for general guidelines on HVAC system design. Table 1 provides specific design parameters for HVAC systems. 1.2 This…

1 Scope 1.1 This Standard provides requirements for the performance, testing, and marking of hand-held barbecue grill brushes and replacement heads with metal bristles for consumer use, intended to clean cooking surfaces of barbecue grills. 1.2 This Standard does not cover the effectiveness of barbecue grill brushes to clean cooking surfaces of barbecue grills. 1.3 This Standard does not…

1 Scope 1.1 This Standard describes methods for the preparation of low-basis weight handsheets of cellulose filaments (CF) and CF-reinforced pulp handsheets to be used for physical tests. 1.2 This Standard also covers the preparation of low-basis weight handsheets of cellulose microfibrils (CMF) and cellulose nanofibrils (CNF), and CMF- or CNF-reinforced pulp handsheets, provided that…