发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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本标准规定了土壤中有效态铅和镉的原子吸收光谱测定方法。 本标准适用于土壤中有效态铅和镉的测定
Soil quality.Analysis of available lead and cadmium contents in soils.Atomic absorption spectrometry
This standard defines the objectives of, and requirements for, documenting processes that assure customers and regulatory agencies that AHP
Performance Standard for Aerospace and High Performance Electronic Systems Containing Lead-free Solder
This standard provides a labeling system that aids in assembly, rework, repair and recycling and provides for the identification of: 1) assemblies
Lead-Free and Leaded Marking, Symbols and Labels
本标准规定有效 F 数及有效 T 数之测定方法
Methods of Measurement for Effective F - number & T - number
Pneumatic fluid power — Determination of flow-rate characteristics of components using compressible fluids — Part 1: General rules and test methods for steady-state flow — Amendment 1: Effective condu
이 표준은 기준 주파수 60 Hz의 교류 유효 전력량을 계량하기 위한 계기 등급 0.2
Static meters for active/reactive energy(class 0.2, 0.5, 1.0, 2.0 for active energy and class 2.0, 3.0 for reactive energy)
本标准规定了铅笔的有害物质限量的要求、试验方法和检验规则。 主要技术内容: (1)规定了铅笔笔杆上涂层、铅芯和铅笔橡皮擦中可迁移元素锑、砷、钡、镉、铬、铅、汞、硒、铝的含量及总铅含量要求和试验方法。 (2)规定了铅笔笔杆上涂层、铅芯和铅笔橡皮擦中邻苯二甲酸酯类物质限量要求和试验方法
Limit of harmful substances for pencil
이 규격은 45~65 Hz의 정격 주파수를 갖는 단일 또는 다중 비율로 작동되는 계기에
Active electrical energy meters for direct connection(Class 2)
Practical advice on how to design and implement a simple and effective EMS system
Effective EMS Auditing
In System R2 the sending of end-of-pulsing signal (code 15) may not occur if a number-received indication has already been received
National (Significant) Number - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 1 pp
This guide specification covers the requirements for portable, semi-permanent, permanent, power-assisted or manually deployed active vehicle
ACTIVE VEHICLE BARRIERS
In automatic working, the subscriber sends the called subscriber’s national (significant) number1) by means of a dial,push-button set,or automatic
National (significant) number
In automatic working, the subscriber sends the called subscriber's national (significant) number by means of a dial, push-button set, or automatic
National (significant) number
In automatic working, the subscriber sends the called subscriber's national (significant) number by means of a dial, push-button set, or automatic
National (significant) number
本标准规定了用磷酸二氢钠提取——原子荧光法测定酸性土壤中有效砷和用硫代乙醇酸-磷酸氢二钠提取——原子荧光法测定酸性土壤中有效汞的方法。 本方法适用于pH<6.5的酸性土壤,pH6.5~pH7.0的土壤也可参照使用。 有效砷检出限为0.007 mg/kg,有效汞检出限为0.001 mg/kg
本标准规定了土壤中有效态铅和镉的原子吸收光谱测定方法。 本标准适用于土壤中有效态铅和镉的测定
Soil quality.Analysis of available lead and cadmium contents in soils.Atomic absorption spectrometry
This standard defines the objectives of, and requirements for, documenting processes that assure customers and regulatory agencies that AHP
Performance Standard for Aerospace and High Performance Electronic Systems Containing Lead-free Solder
This standard provides a labeling system that aids in assembly, rework, repair and recycling and provides for the identification of: 1) assemblies
Lead-Free and Leaded Marking, Symbols and Labels
本标准规定有效 F 数及有效 T 数之测定方法
Methods of Measurement for Effective F - number & T - number
Pneumatic fluid power — Determination of flow-rate characteristics of components using compressible fluids — Part 1: General rules and test methods for steady-state flow — Amendment 1: Effective condu
이 표준은 기준 주파수 60 Hz의 교류 유효 전력량을 계량하기 위한 계기 등급 0.2
Static meters for active/reactive energy(class 0.2, 0.5, 1.0, 2.0 for active energy and class 2.0, 3.0 for reactive energy)
本标准规定了铅笔的有害物质限量的要求、试验方法和检验规则。 主要技术内容: (1)规定了铅笔笔杆上涂层、铅芯和铅笔橡皮擦中可迁移元素锑、砷、钡、镉、铬、铅、汞、硒、铝的含量及总铅含量要求和试验方法。 (2)规定了铅笔笔杆上涂层、铅芯和铅笔橡皮擦中邻苯二甲酸酯类物质限量要求和试验方法
Limit of harmful substances for pencil
이 규격은 45~65 Hz의 정격 주파수를 갖는 단일 또는 다중 비율로 작동되는 계기에
Active electrical energy meters for direct connection(Class 2)
Practical advice on how to design and implement a simple and effective EMS system
Effective EMS Auditing
In System R2 the sending of end-of-pulsing signal (code 15) may not occur if a number-received indication has already been received
National (Significant) Number - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 1 pp
This guide specification covers the requirements for portable, semi-permanent, permanent, power-assisted or manually deployed active vehicle
ACTIVE VEHICLE BARRIERS
In automatic working, the subscriber sends the called subscriber’s national (significant) number1) by means of a dial,push-button set,or automatic
National (significant) number
In automatic working, the subscriber sends the called subscriber's national (significant) number by means of a dial, push-button set, or automatic
National (significant) number
In automatic working, the subscriber sends the called subscriber's national (significant) number by means of a dial, push-button set, or automatic
National (significant) number
本标准规定了用磷酸二氢钠提取——原子荧光法测定酸性土壤中有效砷和用硫代乙醇酸-磷酸氢二钠提取——原子荧光法测定酸性土壤中有效汞的方法。 本方法适用于pH<6.5的酸性土壤,pH6.5~pH7.0的土壤也可参照使用。 有效砷检出限为0.007 mg/kg,有效汞检出限为0.001 mg/kg