179.00 Dollar US$ Sampling by Variables; How to Use ANSI/ASQ Z1.9 (formerly MIL-STD 414) Bethesda

Published date: November 27, 2018
  • Location: Online, Bethesda, Maryland, USA

Description :
ANSI/ASQ Z1.9 (formerly MIL-STD 414) is a generally accepted sampling standard for products with real-number (variables) data. Acceptance or rejection depends on the sample statistics. The sampling plan itself is a function of the lot size, acceptable quality level (AQL), and sampling level. Switching rules similar to those for ANSI/ASQ Z1.4 (MIL-STD 105) determine whether sampling is at the normal, tightened, or reduced level.

Objective :
1. Use ANSI/ASQ Z1.9 to select the appropriate sampling plan and acceptance criteria based on (1) the lot size, (2) the sampling level, and (3) the acceptable quality level (AQL).
• • Know that these plans rely on the assumption that the critical to quality characteristic follows the normal (bell curve) distribution.
• • The required sample size is much lower when the process standard deviation is known (as it might be from a process capability study) than when it must be estimated from the sample statistics.
2. Determine whether to accept or reject the lot depending on the sample statistics.
• Estimate, where necessary, the nonconforming fraction at each specification limit to make the acceptance/rejection decision.
3. Use switching rules to select normal, tightened, or reduced inspection depending on quality performance and consistency of production.

Areas Covered in the Session :
• Practical requirements for drawing the sample
• Plan considerations: one-sided or two-sided specification? Equal or unequal AQLs for the two specification limits? Process variation known or unknown?
• Selection of normal, tightened, or reduced inspection as a function of quality performance and consistency of production
• Definition of the appropriate sample plan (sample size and acceptance criteria) on the basis of the lot size N, sampling level, and AQL
• Calculation of sample statistics and quality indices, and estimation of the nonconforming fraction (at each specification limit if necessary) to determine whether the lot should be accepted
o Use of the range method; an important takeaway is that ranges are for groups of 5 parts and not the total sample. If the sample size is 15, the range is the average range for three groups of five parts as opposed to one range for 15 parts.
• An appendix in the handout (the webinar will not spend time on the material as it is not necessary to actually use the standard) will show how to derive the operating characteristic curves for situations in which the process variation is known, and when only the sample standard deviation is available. The latter requires use of the noncentral t distribution, which is handled by software
Who Will Benefit:
Manufacturing and quality engineers, technicians, and inspectors with responsibility for inspections that involve quantitative measurements of parts.

About Speaker:
William A. Levinson, P.E., FASQ, CFPIM, is the owner of Levinson Productivity Systems PC. He holds professional certifications from the American Society for Quality, APICS, and Society of Manufacturing Engineers.

Venue: Online
Speaker Name: William A. Levinson
Priice : $ 179
Tuesday Dec 4 ,2018
EST 13:00
Duration : 60 Minutes
www.compliancetrainingpanel.com

Contact seller

Share

Useful information

  • Avoid scams by acting locally or paying with PayPal
  • Never pay with Western Union, Moneygram or other anonymous payment services
  • Don't buy or sell outside of your country. Don't accept cashier cheques from outside your country
  • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"

Related listings

  • Chain Link Fencing Rentals in Breckenridge- Safety & Security
    Chain Link Fencing Rentals in Breckenridge- Safety & Security
    Event Services - Simi Valley (California) - November 22, 2024 Check with seller

    Choosing Countrywide Fence Rental for chain link fencing rentals in Breckenridge means opting for quality, reliability, and excellent customer service. To meet your fencing needs contact us today to discuss your project and get a custom quote!

  • Reliable Dumpster Rentals in Oak Lawn, IL
    Reliable Dumpster Rentals in Oak Lawn, IL
    Event Services - Simi Valley (California) - November 22, 2024 Check with seller

    Countrywide Roll Off provides reliable dumpster rentals in Oak Lawn, IL with a variety of sizes, transparent pricing and eco-friendly disposal to waste. If you want to rent one dumpster, request a free quote, or call us now at (888) 657-2586.

  • Paul Wade Programs: Make Your Event Truly Inspiring
    Paul Wade Programs: Make Your Event Truly Inspiring
    Event Services - Sydney (NSW Australia) - November 22, 2024 Check with seller

    Paul has developed a way of sharing his life experiences with young people to challenge their thinking and inspire them to make positive life choices. He offers educational programmes that promote awareness of key life values that can be experienced ...