GB/T 7475-1987 水质 铜、锌、铅、镉的测定 原子吸收分光光度 …
GB/T 7475-1987 水质 铜、锌、铅、镉的测定 原子吸收分光光度法本标准规定了测定水中铜、锌、铅、镉的原子吸收光谱法。 本标准分为两部分。 第一部分分为直接法，适用于测定地下水、地面水和废水中的铜、锌、铅、镉；第二部分为螯合萃取法，适用于测定地下水和清洁地面水中的浓度的铜、铅、镉。 注：依据国家标准全文公开系统，该标准已调整为推荐性。
水质 铜、锌、铅、镉的测定 原子吸收分光光度法_中华人民共和国 …
标准号：GB 7475-87. 本标准规定了测定水中铜、锌、铅、镉的原子吸收分光光度法。. 本标准分为两部分，第一部分为直接法，适用于测定地下水、地面水和废水中的铜、锌、铅、镉；第二部分为整合萃取法，适用于测定地下水和清洁地面水中低浓度的铜、铅、镉 ...
7475 aluminium alloy - Wikipedia
7475 aluminum alloy (Adirium) is a wrought alloy with high zinc weight percentage. It also contains magnesium, silicon and chromium. [1] 7475 alloy can not be welded. It has more spring back because of its strength. It has high machinability. [citation needed]
7475 Datasheet(PDF) - Texas Instruments
Part #: 7475. Download. File Size: 229Kbytes. Page: 6 Pages. Description: 4-BIT BISTABLE LATCHES. Manufacturer: Texas Instruments.
Aluminum 7475 Product Guide - Online Metals
7475 aluminum is an aircraft grade derived from 7075 aluminum. 7475 provides high strength, fracture toughness, and resists fatigue crack propagation. It's a heat-treatable alloy that is commonly used in commercial, fighter, and transport airplanes.
7475铝合金 - 百度百科
7475铝合金，美国变形铝及铝合金。 7475属于Al-Zn-Mg-Cu系合金，7475用于机身用的包铝的与未包铝的板材，机翼骨架、桁条等及其他既要有高的强度又要有高的断裂韧性的零部件。
高通骁龙 7 系新品 SM7475 曝光：大核 2.40GHz，小核 1.8GHz
IT之家 10 月 6 日消息，爆料人 @Roland Quandt 透露，高通正在测试新的骁龙 7 系 SoC（SM7475），新品采用了“1+3+4”的三丛集设计，目前看来与前代的规格并没有差很多，可能是骁龙 7 Gen 2 或者 骁龙 7+ Gen 1。. 据介绍，这颗芯片由一颗超大核、三颗大核和四颗小核组成 ...
7475 Aluminum Plate - T651, T7651 and T7351 Tempers - TW …
7475 Aluminum Plate. Alloy 7475 aluminum plates are a controlled toughness alloy whose values are 40 percent greater than alloy 7075 in the same tempers. This alloy’s corrosion resistance and fatigue behavior are also equal to, or better than, many of the other high strength aerospace alloys, and is for those applications that require a ...
4-Bit Bistable Latches datasheet. SDLS120 – MARCH 1974 – REVISED MARCH 1988. PRODUCTION DATA information is current as of publication date. Copyright 1988, Texas Instruments Incorporated. Products conform to specifications per the terms of Texas Instruments standard warranty.
7475 (AlZn5.5MgCu (A)) Aluminum - MakeItFrom.com
2020年5月30日 · 7475 aluminum is a 7000-series aluminum alloy: the main alloying addition is zinc and it is formulated for primary forming into wrought products. 7475 is the Aluminum Association (AA) designation for this material. In European standards, it …