ISO 7873:1993

Standard
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Status: Alert Tilbaketrukket
Norsk tittel: Control charts for arithmetic average with warning limits
Engelsk tittel: Control charts for arithmetic average with warning limits
Varetype: Standard
Språk: Engelsk
Utgave: 1 (1993-12-23)
Antall sider: 13
Pris:

NOK 1 176,00 (eks. mva)
NOK 1 470,00 (ink. mva)

Omfang: <p>This International Standard specifies procedures for the statistical control of processes by using control charts based on calculating the arithmetic average of a sample and using warning limits and action limits. It is assumed that for large lots and for the mass output of piece and batch production, such a measure of quality is a random variable following a normal distribution. However, when averages of four or more items are plotted, this assumption of a normal distribution is not necessary for control purposes (see <xref ref-type="sec" rid="sec_4.2">4.2</xref>).</p>
Fastsatt: 1993-12-23
Tilbaketrukket: 2014-12-10
ICS: 03.120.30 - Anvendelse av statistiske metoder