Seed standards for sunflower seed production.

(1) Samples submitted for certification must be a minimum of 1,000 grams. (2) Seed standards for sunflowers are as follows: Purity | Foundation | Registered | Certified Pure seed - Minimum % | 98.00 | 98.00 | 98.00 Inter matter - Maximum % | 2.00 | 2.00 | 2.00 Other varieties* - Maximum | 1 seed/lb. | 1 seed/lb. | 6 seeds/lb. of which may not consist of more than 1 purple or white seed Other crop seed - Maximum | 1 seed/lb. | 1 seed/lb. | 6 seeds/lb. Corn or castor bean seed | None found | None found | None found Weed seed - Maximum % | None found | None found | 0.10 Germination - Minimum % | 85.00 | 85.00 | 85.00 * | Varietal differentiation cannot always be distinguished in a seed sample. When varietal differences are evident this standard applies. [Statutory Authority: RCW 15.49.005 , [15.49].021, [15.49].310, [15.49].370, 15.140.030 , and chapter 15.49 RCW. WSR 25-09-035, s 16-302-815, filed 4/9/25, effective 5/10/25. Statutory Authority: RCW 15.49.005 , 15.49.081 , 15.49.310 , 15.49.370 (3), and chapter 34.05 RCW. WSR 14-20-050, § 16-302-815, filed 9/25/14, effective 10/26/14.]