HJ 644-2013.Ambient air - Determination of volatile organic compounds-Sorbent adsorption and thermal desorption / gas chromatography mass spectrometry

HJ 645-2013.Ambient air - Determination of volatile halogenated hydrocarbons - Activated charcoal adsorption and carbon disulfide desorption/gas chrom

HJ 654-2013.Specifications and Test Procedures for Ambient Air Quality Continuous Automated Monitoring System for SO2、NO2、O3 and CO. 1适用范围 HJ 654规定了环境

HJ 655-2013.Technical Specifications for Installation and Acceptance of Ambient Air Quality Continuous Automated Monitoring System for PM10 and PM2.5.

HJ 656-2013.Technical Specifications for gravimetric measurement methods for PM2.5 in ambient air. 1适用范围 HJ 656规定了环境空气颗粒物(PM2.5) 手工监测方法(重量法)的采样、分析、数据处

HJ 93-2013.Specifications and Test Procedures for PM10 and PM2.5 Sampler. 1适用范围 HJ 93规定了环境空气颗粒物(PM10和PM2.5)采样器的技术要求、性能指标和检测方法。 HJ 93适用于环境空气颗粒物(PM10和PM

HJ 193-2013.Technical Specifications for Installation and Acceptance of Ambient air Quality Continuous Automated Monitoring System for SO2, NO2, O3 an

HJ 653-2013.Specifications and Test Procedures for Ambient Air Quality Continuous Automated Monitoring System for PM10 and PM2.5. 1适用范围 HJ 653规定了环境空气颗

HJ 652-2013.Compiling Guideline of Eco-environmental Protection and Reclamation Plan for Mining. 1适用范围 HJ 652规定了矿山生态环境保护与恢复治理方案(规划)编制的原则、程序、内容和技术要求。 H

HJ 651-2013.Technical Specifications of Eco-environmental Protection and Reclamation for Mining. 1适用范围 HJ 651规定了矿产资源勘查与采选过程中的矿区生态环境保护要求，包括排土场、露天采场、尾矿库

HJ 646-2013.Ambient air and stationary source emissions - Determination of gas and particle-phase polycyclic aromatic hydrocarbons with gas chromatogr

HJ 647-2013.Ambient air and stationary source emissions一Determination of gas and particle-phase polycyclic aromatic hydrocarbons - High performance li