HJ/T 399-2007 水质 化学需氧量的测定 快速消解分光光度法
作者:标准资料网 时间:2024-05-17 10:31:26 浏览:8610
来源:标准资料网
基本信息
| 标准名称： | 水质 化学需氧量的测定 快速消解分光光度法 |
| 英文名称： | Water quality-Determination of the chemical oxygen demand-Fast digestion-Spectrophotometric method |
| 中标分类： |
环境保护 >>
环境保护采样、分析测试方法 >>
工业废水、污染物分析方法 |
| ICS分类： |
环保、保健与安全 >>
>>
水质综合
|
| 发布部门： | 中华人民共和国环境保护部 |
| 发布日期： | 2007-12-07 |
| 实施日期： | 2008-03-01 |
| 首发日期： | |
| 作废日期： | |
| 主管部门： | 中华人民共和国环境保护部 |
| 提出单位： | 国家环境保护总局科技标准司 |
| 归口单位： | 国家环境保护总局科技标准司 |
| 起草单位： | 河北省环境监测中心站 |
| 出版社： | 中国环境科学出版社 |
| 出版日期： | 2008-03-01 |
| 页数： | 13页 |
适用范围
本标准适用于地表水、地下水、生活污水和工业废水中化学需氧量（COD）的测定。
本标准对未经稀释的水样，其COD 测定下限为15 mg/L，测定上限为1000mg/L，其氯离子浓度不应大于1000mg/L。
本标准对于化学需氧量（COD）大于1000mg/L 或氯离子含量大于1000mg/L 的水样，可经适当稀释后进行测定。
前言
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目录
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引用标准
GB/T 6682 分析实验室用水的规格和试验方法
GB/T 11896 水质 氯化物的测定 硝酸银滴定法
JJG 975 化学需氧量（COD）测定仪
所属分类： 环境保护 环境保护采样 分析测试方法 工业废水 污染物分析方法 环保 保健与安全 水质综合
Product Code:SAE AMS2628
Title:Ultrasonic Immersion Inspection Titanium and Titanium Alloy Billet Premium Grade
Issuing Committee:Ams K Non Destructive Methods And Processes Committee
Scope: This specification covers procedures for ultrasonic immersion inspection of premium grade wrought titanium and titanium alloy round billet 5.0 inches (127 mm) and over in nominal diameter.This inspection procedure has been used typically for locating internal defects such as cracks, voids, inclusions, and other structural discontinuities which may or may not be exposed to the surface in billets, but usage is not limited to such applications. Testing normally will be by longitudinal procedure, but shear wave procedure may be added when agreed upon by purchaser and vendor. This specification includes zoned inspection and digital data acquisition.
Rationale: This specification covers procedures for ultrasonic immersion inspection of premium grade wrought titanium and titanium alloy round billet 5.0 inches (127 mm) and over in nominal diameter.This inspection procedure has been used typically for locating internal defects such as cracks, voids, inclusions, and other structural discontinuities which may or may not be exposed to the surface in billets, but usage is not limited to such applications. Testing normally will be by longitudinal procedure, but shear wave procedure may be added when agreed upon by purchaser and vendor. This specification includes zoned inspection and digital data acquisition.Product Code:SAE AMS3250
Title:Synthetic Rubber and Cork Composition, General Purpose, Soft
Issuing Committee:Ams Ce Elastomers Committee
Scope:This specification covers a synthetic rubber and cork composition in the form of sheet, strip, and molded shapes.
