JB-T 7519-1994 热处理盐浴(钡盐、硝盐)有害固体废物分析方法

J36JB/T751919941994-10-251995-10-01()112GB5086JB/T604733.1K2Cr2O7Ba2+K2Cr2O72K++Cr2O−271Cr2O−27+H2O2HcrO42H++2CrO−242Ba2++CrO−24=BaCrO43K2Cr2O72H2CrO4+6NH42FeSO42+6H2SO4=Cr2SO43+3Fe2SO43+6NH42SO4+8H2O4K2Cr2O7BaCl23.2A.RW/Va0.05Mb0.25Mc111.84d1.70e15%f0.27g5mL5%250mL3.31994-10-25JB/T751919941995-10-01()JB/T75191994220/3.43.4.1GB50861.13.4.2JB/T60474.1.13.4.311mm11pH711020h1~2h8h6pH7mL0.05MK2Cr2O72O50~60min301GB5330850.95mm20.8/3.5a50g500mL11020h1~2h500mLb20mL250mLc25mL75mL2mL50~6020mLd30min0.5%5~6e1112mL2mL35BaCl2BaCl2%=()1000694.02211××−GVMVM5M1V2mLM2V2mLGg0.0694BaCl2JB/T751919943BaCl2Ba2+mg/L=VW6WBa2+mgVL=3.6BaCl2Ba2+1000mg/L1.0%1000mg/L0.5%44.12KMnO4+5NaNO2+3H2SO4=2MnSO4+K2SO4+5NaNO3+3H2O74.2a111.84b0.1M4.33.34.44.4.13.4.14.4.23.4.24.4.322mm1pH711020h1~2h8h6pH8mL0.1MKMnO42O50~604.5a50g500mL11020hJB/T7519199441~2h500mLb50mL500mLc0.1M20mL300mL115mL50~608NaNO2NaNO2%=10050050345.020××××VM8MVmL0.0345NaNO2NaNO2NO−2mg/L=VW9WNO−2mgVL4.6NaNO2NO−2500mg/L1.0%JB/T75191994JB/T75191994*2100044*88012301/161/28,000199671996715005.00