supply of brass sieve set , brass sieve set of size astm 30. 40, 50, 70, 100, 140, 200, 270 & pan with lid (lid should be with ring and not head)., for sand sieve analysis. the sieves should be of brass frame, of 200 mm diamete r and 50 mm height., should meet the requirement of is- 410 part 1. the calibration certificate for size conf ormity to be obtained from a nabl approved laboratory with scope for the same. sieves should be of mini mum 0.6 mm thickness gauge, and a minimum weight of 320 gms each. brass sieves should be without an y joint machine made, uniformly fabricated with ss cloth, individually packed in printed cardboard boxes . warranty-1 year. the whole sieve set will be rejected even if a single sieve is not meeting the above requir ement. if any sieve is damaged within warranty period, the supplier has to replace the same, on no paymen t basis. [ warranty period: 12 months after the date of delivery ] ]