NTEP 2004 Legal-for-Trade Carat Scales

Home Up NTEP 2000 Carat Scales NTEP 2004 Carat Scales

This is a compendium of NTEP approved carat scales as of January 9 2004, including their NTEP Certificate references (See http://ntep.nist.gov/ntep/navigation.htm)

Note: We sell nothing, these are just prices quoted to me today. We in no way endorse any distributors, nor will we take any responsibility for any errors of either commission or omission!

Executive Summary:

 

The following are the only NTEP-approved carat scales that are certified by NIST to .01 carat accuracy with active certificates. Note that these scales all display but are not certified to .001ct:

 

Under $1000 or so:

 

  1. A&D Engineering HR-60 and HR-60GD (300c x .01 ct) List $1495 $1031 (Balances.com)$1147 (Kassoy) $995 (A&A)

  2. Mettler-Toledo CB203/A (210 x .01 ct) $1213 (Kassoy) - $1204 (A&A)

  3. Mettler-Toledo CB603/A (610 x .01 ct) $1397 or possibly $1147 with rebate thru 01/31/04 (Kassoy)

 

Well over $1000:

 

  1. Mettler-Toledo CB1503DR/A (1600 x .01 ct) $1575

  2. Mettler-Toledo AB54-S/A (255c x .01c) $1740

  3. Mettler-Toledo AB104-S/A (505c x .01c) $2136

  4. Ohaus V10642, EP64CN (310c x .01c) $2345

  5. Ohaus V11142, EP114CN (550c x .01c) $2520

  6. Ohaus V12142, EP214CN (1050c x .01c) $2870

  7. Ohaus V1RR82, EP214DCN (3050c x .01c) $2570

 

Full Alphabetical Listing:

 

A&D Engineering AD Series.  CERTIFICATE NOT ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/93-077.pdf

 

A&D Engineering EK and EW Series.  CERTIFICATE ACTIVE

                This is a large series.  None are certified to .01 Carats.

                See http://ntep.nist.gov/NTEP_PDFS/95-097A1.PDF

 

A&D Engineering FG Series.  CERTIFICATE ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/93-063.pdf

 

A&D Engineering FV Series.  CERTIFICATE NOT ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/90-064A2.pdf

 

A&D Engineering FW and HW Series.  CERTIFICATE NOT ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/90-061A5.pdf

 

A&D Engineering GF Series (GF-200, GF-300).  CERTIFICATE ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/03-005.pdf

 

A&D Engineering HD Series.  CERTIFICATE ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/98-069.pdf

 

A&D Engineering HF-200, HF-200GD (HF-200G is grams only).  CERTIFICATE ACTIVE

                These are both carat scales, 210 x .01g. None, however, are certified to .01 Carats.

                See http://ntep.nist.gov/NTEP_PDFS/97-127.PDF

 

A&D Engineering HR-60 and HR-60GD (HR-60G is grams only).  CERTIFICATE ACTIVE

                These are both carat scales 300 x .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/97-084.PDF

 

A&D Engineering HV Series.  CERTIFICATE ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/00-088A1.pdf

 

A&D Engineering SF and SG Series.  CERTIFICATE ACTIVE

                None are certified to .01 Carats.

                See http://ntep.nist.gov/NTEP_PDFS/99-076.PDF

 

A&D Engineering SB Series.  CERTIFICATE ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/02-079.pdf

 

A&D Engineering SK Series.  CERTIFICATE ACTIVE

                None are certified to .01 Carats.

                See http://www.ncwm.net/NTEP/98-086A2.pdf

 

Denver Instruments AL-5K/44.  CERTIFICATE NO LONGER ACTIVE

                This is not a carat scale.  5000 x 0.1g only

                See http://ntep.nist.gov/NTEP_PDFS/92-194.PDF

 

Fulcrum DRX-3.  CERTIFICATE ACTIVE

                This scale is limited to use for weighing pharmaceuticals.

                It must be marked "For Prescription Weighing Only"

                This scale is not certified to .01 ct.

                See http://www.ncwm.net/NTEP/87-019A1.pdf

 

Mettler-Toledo AB Series.  CERTIFICATE ACTIVE

                AB54-S/A (255c x .01c)

                AB104-S/A (505c x .01c)

                AB204-S/A (1050c x .01c) - Phased out since 1999

                See http://www.ncwm.net/NTEP/99-133A2.pdf

 

Mettler-Toledo AE1000C/49.  CERTIFICATE NO LONGER ACTIVE

                AE1000C/49 is a carat scale.  1025 x .01 c

                See http://ntep.nist.gov/NTEP_PDFS/91-026.PDF

 

Mettler-Toledo BD Series.  CERTIFICATE ACTIVE

                None are certified to .01 Carats

                See http://ntep.nist.gov/NTEP_PDFS/92-155.PDF

 

Mettler-Toledo CB, PB Series.  CERTIFICATE ACTIVE

                This is a large series.  Only three are certified in Carats.

                CB203/A is a carat scale.  210 x .01 ct

                CB603/A is a carat scale.  610 x .01 ct

                CB1503DR/A is a carat scale.  1600 x .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/94-022.PDF

 

Mettler-Toledo PJ4000 Series.  CERTIFICATE NO LONGER ACTIVE

                There is no PJ4000P.

                PJ4000GP and PJ4000/49 are not certified in Carats.

                See http://ntep.nist.gov/NTEP_PDFS/87-004A5.PDF

 

Mettler-Toledo PJxxxxG and CJxxxx.  CERTIFICATE NO LONGER ACTIVE

                This is a large series.  Only one, CJ150/49, is certified in Carats.

                CJ150/49 is a carat scale.  150 x .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/87-004A5.PDF

 

Mettler-Toledo PM/49 and CM/49.  CERTIFICATE NO LONGER ACTIVE

                This is a large series.  Only two are certified to .01 Carats.

                CM1200/49 is a carat scale.  1100 x .01 ct

                CM200/49 is a carat scale.  200 x .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/87-004A5.PDF

 

Ohaus CT600 Series.  CERTIFICATE NOT ACTIVE

                CT600L is the only carat scale in this series, but it is not certified to .01 ct.

                See http://ntep.nist.gov/NTEP_PDFS/89-084A1.PDF

 

Ohaus Exxxx2 and Vxxxx2.  Explorer, Explorer Pro, Voyager.  CERTIFICATE ACTIVE

                V10642, EP64CN (310c x .01c)

                V11142, EP114CN (550c x .01c)

                V12142, EP214CN (1050c x .01c)

                V1RR82, EP214DCN (3050c x .01c)

                See http://www.ncwm.net/NTEP/98-053A4.pdf

 

Ohaus GT and GJ Series.  CERTIFICATE NOT ACTIVE (See GT Series)

                There are 3 scales in this series.  None are certified to .01 ct.

                GJ4400-L is certified only to an accuracy of .05 ct

                GJ4000-L is certified only to an accuracy of .5 ct

                GT4000-L is not a carat scale

                See http://ntep.nist.gov/NTEP_PDFS/88-227.PDF

 

Ohaus GT Grain Series.  CERTIFICATE NOT ACTIVE

                These are not Carat scales.

                See http://ntep.nist.gov/NTEP_PDFS/95-090.PDF

 

Ohaus GT Series.  CERTIFICATE NOT ACTIVE

                This is a large series.  None are certified to .01 ct.

                GT410E, GT410DE, GT400E are certified to 2020 x .05 ct.

                GT310E is certified to 1550 x .05 ct.

                GT210E is certified to 1010 x .05 ct.

                See http://ntep.nist.gov/NTEP_PDFS/94-079.PDF

 

Ohaus Navigator Series.  CERTIFICATE ACTIVE

                There are 4 scales in this series.  None certified to .01 ct.

                N06112 is the finest accuracy, at 3050 x .5 ct.

                See http://ntep.nist.gov/NTEP_PDFS/00-017.PDF

 

Sartorius BP and GP Series.  CERTIFICATE ACTIVE

                This is a large series.  None are certified to .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/98-061.PDF

 

Sartorius E, I Series.  CERTIFICATE NOT ACTIVE

                This is a large series.  None are certified to .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/88-121.PDF

 

Sartorius H, G Series.  CERTIFICATE NOT ACTIVE

                G150D-*U2 is the only carat scale in these two series. 

                152 x .01 ct, displays but not certified to .001ct

                See http://ntep.nist.gov/NTEP_PDFS/88-123.PDF

 

Sartorius L Series.  CERTIFICATE NOT ACTIVE

                This is a large series.  None are certified to .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/88-119.PDF

 

Sartorius P Series.  CERTIFICATE NOT ACTIVE

                There are 2 scales in this series.  Neither is certified to .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/88-122.PDF

 

Sartorius U, X Series.  CERTIFICATE NOT ACTIVE

                This is a large series.  None are certified to .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/88-120.PDF

 

Sartorius X1493-X.  CERTIFICATE NOT ACTIVE

                This is a Ticket-Printing scale, not certified to .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/88-187.PDF

 

Scientech 5550.  CERTIFICATE NOT ACTIVE

                This scale is not certified to .01 ct

                See http://ntep.nist.gov/NTEP_PDFS/88-027.PDF

 

Troemner 800A.  CERTIFICATE ACTIVE

                This scale is limited to use for weighing pharmaceuticals.

                It must be marked "For Prescription Weighing Only"

                This scale is not certified to .01 ct.

                See http://ntep.nist.gov/NTEP_PDFS/90-056.PDF

 

 

Revision Notes:

10/21/00 Original Compilation

11/08/00 Added A&D Engineering HF-200, HF-200GD (Not .01c)

01/09/04 Revised with 2004 data and quotes

 

Compilation Credit: JB of Dendritics, of course!

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