A solid waste, as defined in Regulation .02 of this chapter, which is not excluded from regulation as a hazardous waste under Regulation .04-1 of this chapter is a hazardous waste if it exhibits any of the characteristics identified in this regulation and in Regulations .11—.14 of this chapter. A hazardous waste which is identified by a characteristic in Regulations .10—.14 of this chapter is assigned every EPA Hazardous Waste Number that is applicable as set forth in the respective characteristic. This number or these numbers shall be used in complying with the notification requirement of §3010 of RCRA and with certain record keeping and reporting requirements under COMAR 26.13.03—26.13.07 and 26.13.09. For purposes of Regulations .10—.14 of this chapter, the Secretary will consider a sample obtained using any of the applicable sampling methods specified in Regulation .20 to be a representative sample within the meaning of COMAR 26.13.01.