Illustrative Example. (i) From Phase 2 testing, under paragraph (c)(6)(iii) of this section, chemical A was found to have a photolysis rate constant, (kp)SHW′ of 0.30 d¥1 in fall in round tubes at latitude 33° N. Using Table 1 under paragraph (d)(1)(vii) of this section for 30° N, the nearest decadic latitude, a fall value of ka equal to 333 d¥1 is found for PNAP. Substitution of (kp)SHW and ka into Equation 15 under paragraph (d)(2)(i) of this section gives [PYR] = 0.0242 M. This is the concentration of pyridine that gives an actinometer rate constant of 0.30 d¥1 in round tubes in fall at this latitude.
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Illustrative Example. (i) From Phase 2 testing, under paragraph (c)(6)(iii) of this section, chemical A was found to have a photolysis rate constant, (kp)SHW′ of 0.30 d¥1 in fall in round tubes at latitude 33° N. Using Table 1 under paragraph (d)(1)(vii) of this section for 30° N, the nearest decadic latitude, a fall value of ka equal to 333 d¥1 is found for PNAP. Substitution of (kp)SHW and ka into Equation 15 under paragraph (d)(2)(i) of this section gives [PYR] = 0.0242 M. This is the concentration of pyridine that gives an actinometer rate constant of 0.30 d¥1 in round tubes in fall at this latitude.. Environmental Protection Agency § 795.70
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Illustrative Example. (i) From Phase 2 testing, under paragraph (c)(6)(iii) of this section, chemical A was found to 40 CFR Ch. I (7–1–01 Edition) have a photolysis rate constant, (kp)SHW′ of 0.30 d¥1 d–1 in fall in round tubes at latitude 33° N. Using Table 1 under paragraph (d)(1)(vii) of this section for 30° N, the nearest decadic latitude, a fall value of ka equal to 333 d¥1 d–1 is found for PNAP. Substitution of (kp)SHW and ka into Equation 15 under paragraph (d)(2)(i) of this section gives [PYR] = 0.0242 M. This is the concentration of pyridine that gives an actinometer rate constant of 0.30 d¥1 d–1 in round tubes in fall at this latitude.
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