Tolerances for moisture meters.

(a) The maintenance tolerances for Motomco 919 moisture meters used in performing official inspection services shall be: (1) Headquarters standard meters: Moisture range Tolerance Direct comparison Sample exchange Low ±0.05 percent moisture, mean deviation from National standard moisture meter using Hard Red Winter wheat Mid ±0.05 percent moisture, mean deviation from National standard moisture meter using Hard Red Winter wheat High ±0.05 percent moisture, mean deviation from National standard moisture meter using Hard Red Winter wheat (2) All other than Headquarters standard meters: Moisture range Tolerance Direct comparison Sample exchange Low ±0.15 percent moisture, mean deviation from standard moisture meter using Hard Red Winter wheat ±0.20 percent moisture, mean deviation from standard moisture meter using Hard Red Winter wheat Mid ±0.10 percent moisture, mean deviation from standard moisture meter using Hard Red Winter wheat ±0.15 percent moisture, mean deviation from standard moisture meter using Hard Red Winter wheat High ±0.15 percent moisture, mean deviation from standard moisture meter using Hard Red Winter wheat ±0.20 percent moisture, mean deviation from standard moisture meter using Hard Red Winter wheat (b) The maintenance tolerances for GAC 2100 moisture meters used in performing official inspection services shall be: (1) Headquarters standard meters. By direct comparison using mid-range Hard Red Winter wheat, ±0.05% mean deviation for the average of the Headquarters standard moisture meters. (2) All other than Headquarters standard meters. By sample exchange using mid-range Hard Red Winter wheat, ±0.15% mean deviation from the standard meter. [63 FR 34554, June 25, 1998]