supply of chemical for water testing laboratory at public health engineering subdivision pandhana , calcium standard traceable to crm from nist 1000 ml pack ( with traceablility certificate. certificate of analysis merck 500 ml ( 1.19778.0500 ) , cloride standard traceable tocrm , srm from nist. 1000 ml pack ( pack traceability certificate certificate of analysismerck 500 ml ( 1.19897.0500 ) , alkalinity standardsodium carbonate 500 ml 0.1n / 100 mg / l traceablecertificatebnd from nist make lab of bnd bnd nablcertificate fied ( iso17034 ) , turbidity standard 500 ntu traceablecertificatesigma -aldrichcrm from nist make merck lab solution of any ( iso 17034 ) , color standard 500 hazen traceable crm from with nistmake marckor sigma eachthermo orion lab solution or any ( iso17034 ) nablcertified withcartificat , conductivity standard1.41 micro mhostraceableto certificatebndfrom crm , sigmaaldrichnistmake lab solution ( iso 17034 ) certified make , tds standard 1000 mg / l nisttraceableto certificatebndfrom crm ( iso 17034 ) certifiedwith certificat , ph buffer 4.0 solution traceable certificatto crm fromnist make merck or sigma each thermo orion lab solution or any ( iso- 17034 ) certified make , ph buffer 7.0 solution traceable certificatto crm fromnist make merck or sigma each thermo orion lab solution or any ( iso- 17034 ) certified make , ph buffer 9.2 / 10 solution traceable certificatto crm fromnist make merck or sigma each thermo orion lab solution or any ( iso- 17034 ) certified make , potassium chloroplatinatetraceable certificatto crm fromnist make merck or sigma each thermo orion lab solution or any ( iso- 17034 ) certified make , potassium dichromatetraceable certificatto crm fromnist make merck or sigma each thermo orion lab solution or any ( iso- 17034 ) certified make , distil water , sulfuric acide , mixed indicator for alkalinity with coa and sds , potassium chromate indicator solution , silver nitrate 0.0141n solution with coa and sds , edta n / 50 solution , ammonia solution 25percent with coa and sds , petton reeder indicator solution with coa and sds , ammonium purpurate ( murxide ) indicator assay 98 percent