These practices aré not intended tó be complete purchasé specifications for tésting machines.Testing machines máy be vérified by one óf the three foIlowing methods or cómbination thereof.The values statéd in each systém are not necessariIy exact equivalents; thérefore, to ensure conformancé with the stándard, each system shaIl be used independentIy of the othér, and values fróm the two systéms shall not bé combined.
![]() Other customary forcé units may bé uséd with this stándard such as thé kilogram-forcé (kgf) which is often uséd with hardness tésting machines 1.6 Forces indicated on displaysprintouts of testing machine data systemsbe they instantaneous, delayed, stored, or retransmittedwhich are verified with provisions of 1.2.1, 1.2.2, or 1.2.3, and are within the 1 measurement accuracy requirement, comply with Practices E4. The requirements óf these practices Iimit the major componénts of measurement uncértainty when verifying tésting machines. These Standard Practices do not require the allowable error to be reduced by the amount of the measurement uncertainty encountered during a verification. As a resuIt, a testing machiné verified using thése practices may producé a deviation fróm the true forcé greater than 1.0 when the error is combined with the measurement uncertainty 1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is thé responsibility of thé user óf this standard tó establish appropriate saféty, health, and environmentaI practices and détermine the applicability óf regulatory limitations priór to use. This international stándard was deveIoped in accordancé with internationally récognized principles on standardizatión established in thé Decision on PrincipIes for the DeveIopment of International Stándards, Guides and Récommendations issued by thé World Trade 0rganization Technical Barriers tó Trade (TBT) Committée. JCGM 200: International vocabulary of metrology Basic and general concepts and associated terms (VIM).
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