【英文标准名称】:Photography;paperdimensions;paperfordocumentaryreproduction
【原文标准名称】:摄影技术.相纸尺寸.文件复制用相纸
【标准号】:ISO7272-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-10
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC42
【标准类型】:()
【标准水平】:()
【中文主题词】:复制;作标记;尺寸;重氮型材料;摄影材料;相纸;感光纸;摄影;照相排版;尺寸公差
【英文主题词】:diazo-typematerials;dimensionaltolerances;marking;reproductions;photographicmaterials;photography;photographicpaper;photocomposition;photosensitivepapers;dimensions
【摘要】:
【中国标准分类号】:G81
【国际标准分类号】:7770
【页数】:8P;A4
【正文语种】:英语
基本信息
| 标准名称： | 钼精矿化学分析方法 磷量的测定 |
| 英文名称： | Molybdenum concentrates-Determination of phosphorus content |
| 中标分类： |
矿业 >>
有色金属矿 >>
稀有金属矿 |
| ICS分类： |
采矿和矿产品 >>
金属矿
|
| 替代情况： | 替代YB 735-1977;调整为YS/T 555.5-2006 |
| 发布部门： | 国家技术监督局 |
| 发布日期： | 1994-05-11 |
| 实施日期： | 1994-01-02 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2007-09-29 |
| 主管部门： | 中国有色金属工业协会 |
| 归口单位： | 全国有色金属标准化技术委员会 |
| 起草单位： | 金堆城钼业公司 |
| 出版日期： | 1900-01-01 |
| 页数： | 3页 |
适用范围
本标准规定了钼精矿中磷含量的测定方法。本标准适用于钼精矿中磷含量的测定。测定范围：0.002%～0.1%。
前言
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目录
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引用标准
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所属分类： 矿业 有色金属矿 稀有金属矿 采矿和矿产品 金属矿
Product Code:SAE J1868
Title:Restricted Hardenability Bands for Selected Alloy Steels
Issuing Committee:Carbon And Alloy Steels Committee
Scope:Restricted hardenability steels have been in use for some time but the specific restrictions for a particular grade depend upon customer needs and vary from mill to mill. Such steels are desirable to provide more controlled heat treatment response and dimensional control for critical parts. Because of increasing interest in steels with restricted hardenability, the SAE Iron and Steel Technical Committee directed Division 8 to prepare a set of standard steels with restricted hardenability.In 1993, the American Society for Testing and Materials (ASTM) adopted the twelve SAE restricted hardenability steels and added ten more. SAE decided to include in SAE J1868 the additional 10 steels.In general, steels with restricted hardenability (RH steels) will exhibit a hardness range not greater than 5 HRC at the initial position on the end-quench hardenability bar and not greater than 65% of the hardness range for standard H-band steels (see SAE J1268) in the "inflection" region. Generally the restricted hardenability band follows the middle of the corresponding standard H-band. An example of the RH band compared with the standard H-band is given for SAE 4140 in Figure 1.