Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

finishing.com -- The Home Page of the Finishing Industry

The authoritative public forum
for Metal Finishing since 1989
-----

Neutral Salt Spray Testing of Barrel Zinc Plated Fasteners

What sample size ( Number of units from a large number of lots. ) is to be used while testing small barrel plated components like fasteners. Wide variation has been observed in NSS test results. Is there in guide line available for determining sample size to get true representative sample from a large number of loads. It is difficult to conclude due to variation in results.
Thanks.

D.T. Thakur
Metal Finisher - Mumbai, India
2007

You can use ANSI/ASQ Z1.4 Sampling Size Standard to approve lots.

Dionelly De Juan
Medical Devices Manufacture - PR
2007

(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories: