K-Patents PR-33-AC - Manual (Page 36)

30 PR-33-AC instruction manual
Document/Revision No. Rev. 1.02 Effective: June, 2014
−
1.3700
−
1.3800
−
1.3900
−
1.4000
−
1.4100
−
1.4200
−
1.4300
−
1.4400
−
1.4500
−
1.4600
−
1.4700
−
1.4800
−
1.4900
−
1.5000
−
1.5100
−
1.5200
The accuracy of the certified standard refractive index liquids is ±0.0002 and they can
be traced back to NIST standards # 1823 and # 1823 II. As the specified accuracy of the
Sanitary OEM Refractometer is ±0.0002, then the representative level is the sum of the
two accuracy specifications, that is ±0.0004.
K-Patents provides a set of standard R.I. liquids, PR-2300, containing five selected liq-
uids (1.3300, 1.3700, 1.4200, 1.4700, 1.5200). The set can be ordered from K-Patents.
Other liquids are available on request.
7.3 Verification procedure
The instrument verification can be performed by using the web interface (see chapter 5)
on the instrument verification page (figure 5.6). The standard liquids are placed on
the prism as instructed by the instructions on the screen. Once the liquid has settled,
sample is measured by clicking the New verification point button.