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This PDF includes GI #2. 1.1 Scope 1.1.1 This standard applies to newly produced illuminating appliances constructed entirely of new, unused parts and materials, (a) for use with natural gas; (b) for use with propane; (c) for use with butane.

定价： 1138元 / 折扣价： 968 元

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1. Scope 1.1 This Code covers the minimum requirements for the installation of solar domestic hot water systems. 1.2 This Code applies to the installation of packaged solar domestic hot water systems supplied for year-round or seasonal heating of

定价： 455元 / 折扣价： 387 元

1. Scope 1.1 This Standard is concerned with the performance, durability, and safety of packaged seasonal solar domestic hot water (SSDHW) systems designed to provide hot water for small residential buildings. In these systems freeze protection is ac

定价： 455元 / 折扣价： 387 元

定价： 683元 / 折扣价： 581 元

定价： 605元 / 折扣价： 515 元

This PDF includes Update No. 2 and Update No. 3 1. Scope 1.1 This Standard applies to devices that automatically reduce the initial pressure to a set lower pressure in water systems and are self-acting spring-operated devices. It applies to devices

定价： 364元 / 折扣价： 310 元

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1. SCOPE 1.1 This Standard applies to tubular rigid metallic support members and associated fittings intended for the support and connection of supply service wires for installations operating at potentials of 750 volts or less in accord?ance with the ru

定价： 501元 / 折扣价： 426 元

1. Scope 1.1 This Standard is concerned with the performance, durability, and safety of packaged solar domestic hot water systems (SDHWS) designed for use in small buildings. It may be used to evaluate solar domestic hot water systems that are base

定价： 455元 / 折扣价： 387 元

定价： 1177元 / 折扣价： 1001 元

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Update No. 1 was published as notification that this is now a National Standard of Canada This PDF includes Update No. 1 Preface This is the fourth edition of CSA C191, Performance of electric storage tank water heaters for domestic hot water ser

定价： 683元 / 折扣价： 581 元