00335nam a22000737a 4500245018400000260005700184300001000241650001000251  aIS 13937-4:1994-Statistical Methods of Determining and Verifying Stated Noise Emission Values of Machinery and Equipment, Part 4: Methods for Stated Values for Batches of Machines  aNew Delhi:bBureau of Indian Standards (BIS),c1994.  a14 p.  aNoise