tender and contract for supply of chemical material for division and subdivision lab damoh , tender and contract for supply of chemicals for division and subdivision lab damoh , sodium carbonate, 0.1n / 100mg / l, traceable to srm from nist make bnd, loba merck, sigma enrich, or any iso-17034 certified , calcium standard1000 mg / ltr traceable to srm from nistmake :- bnd, merck, sigma enrich, or any iso-17034 certified make , chloride standard500 mg / ltr traceable to srm from nist make :- bnd, merck, sigma enrich, thermo orion, nsi lab solution, or any iso-17034 certified make , tds standardsodium chloride traceable to srm from nist make :- bnd, merck, sigma enrich, thermo orion, nsi lab solution, or any iso-17034 certified make , ph4.0solution traceable to srm from nistmake :- bnd, merck, sigma enrich, thermo orion, nsi lab solution, or any iso-17034 certified make , ph7.0solution traceable to srm from nistmake :-bnd, merck, sigma enrich, thermo orion, nsi lab solution, or any iso-17034 certified make , ph9.0 / 10.0solution traceable to srm from nistmake :- bnd, merck, sigma enrich, thermo orion, nsi lab solution, or any iso-17034 certified make , turbidity standard 100ntu traceable to srm from nist .make :- bnd, merck, sigma enrich, thermo orion, or any iso-17034 certified make , colour standard 500 hazen traceable to srm from nistmake :-bnd, merck, sigma enrich, thermo orion, any iso-17034 certified make