微信公众号随时随地查标准

QQ交流1群(已满)

QQ群标准在线咨询2

QQ交流2群

购买标准后,可去我的标准下载或阅读

NoScope Available

定价: 455元 / 折扣价: 387

在线阅读 收 藏
ANSI Z21.79-1997(R2006)/CGA 6.21-M97 Gas Appliance Sediment Traps 现行 发布日期 :  1970-01-01 实施日期 : 

1.1 Scope 1.1.1 This standard applies to newly produced gas appliance sediment traps hereinafter referred to as traps (see Part IV, Definitions), constructed entirely of new, unused parts and materials. Compliance of a trap with this standard does

定价: 4596元 / 折扣价: 3907

在线阅读 收 藏

Scope Details test and examination criteria for gas appliance sediment traps having a maximum operating gas pressure rating of 1/2 psi. A sediment trap is defined as a device intended to protect appliance gas controls from dirt and foreign particles wh

定价: 683元 / 折扣价: 581

在线阅读 收 藏

定价: 546元 / 折扣价: 465

在线阅读 收 藏

1. Scope This part of IEC 79 prescribes the specific requirements for construction and testing of electrical apparatus, parts of electrical apparatus and Ex components which have rated voltages not exceeding 11 kV with the type of protection encapsulat

定价: 1092元 / 折扣价: 929

在线阅读 收 藏

1. Scope 1.1 This part of IEC 79 specifies the requirements for the construction and testing of oil-immersed electrical apparatus, oil-immersed parts of electrical apparatus and Ex components in the type of protection "o", intended for use in potential

定价: 410元 / 折扣价: 349

在线阅读 收 藏
7 条记录,每页 15 条,当前第 1 / 1 页 第一页 | 上一页 | 下一页 | 最末页  |     转到第   页