supply of chemicals for distt. lab shajapur lab as per list attach distt.shajapur--1 alkalinity standard solution as calcium carbonate 0.1n traceable to srm from nist with traceability certificate,make bnd or merck. 2 calcium standard solution as calcium carbonate 1000 mg/l traceable to srm from nist with traceability certificate,make bnd or merck. 3 chloride standard solution 1000 mg/l traceable to srm from nist with traceability certificate,make bnd or merck. 4 ph buffer standard for 4.0 ± 0.02 ph traceable to srm from nist with traceability certificate. .,make bnd or merck. 5 ph buffer standard for 7.0 ± 0.02 ph traceable to srm from nist with traceability certificate. minimum one year validity on date of supply.,make bnd or merck. 6 ph buffer standard for 9.2 ± 0.02 ph traceable to srm from nist with traceability certificate. minimum one year validity on date of supply.,make bnd or merck. 7 turbidity standard solution 1000 ntu traceable to srm from nist with traceability certificate.,make bnd or merck.