40 CFR Part 53, Table E-1
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Subpart E procedure | Performance test | Performance specification | Test conditions | Part 50,appendix Lreference |
|---|---|---|---|---|
| § 53.52 Sample leak check test | Sampler leak check facility | External leakage: 80 mL/min, maxInternal leakage: 80 mL/min, max | Controlled leak flow rate of 80 mL/min | Sec. 7.4.6. |
| § 53.53 Base flow rate test | Sample flow rate1. Mean2. Regulation3. Meas accuracy4. CV accuracy5. Cut-off | 1. 16.67 ±5%, L/min2. 2%, max3. 2%, max4. 0.3% max5. Flow rate cut-off if flow rate deviates more than 10% from design flow rate for >60 ±30 seconds | (a) 6-hour normal operational test plus flow rate cut-off test(b) Normal conditions(c) Additional 55 mm Hg pressure drop to simulate loaded filter(d) Variable flow restriction used for cut-off test | Sec. 7.4.1.Sec. 7.4.2.Sec. 7.4.3.Sec. 7.4.4.Sec. 7.4.5. |
| § 53.54 Power interruption test | Sample flow rate1. Mean2. Regulation3. Meas. accuracy4. CV accuracy5. Occurrence time of power interruptions6. Elapsed sample time7. Sample volume | 1. 16.67 ±5%, L/min2. 2%, max3. 2%, max4. 0.3% max5. ±2 min if >60 seconds.6. ±20 seconds7. ±2%, max | (a) 6-hour normal operational test(b) Nominal conditions(c) Additional 55 mm Hg pressure drop to simulate loaded filter(d) 6 power interruptions of various durations | Sec. 7.4.1.Sec. 7.4.2.Sec. 7.4.3.Sec. 7.4.5.Sec. 7.4.12.Sec. 7.4.13.Sec. 7.4.15.4.Sec. 7.4.15.5. |
| § 53.55 Temperature and line voltage test | Sample flow rate1. Mean2. Regulation3. Meas. accuracy4. CV accuracy5. Temperature meas. accuracy6. Proper operation. | 1. 16.67 ±5%, L/min2. 2%, max3. 2%, max4. 0.3% max5. 2 °C | (a) 6-hour normal operational test(b) Normal conditions(c) Additional 55 mm Hg pressure drop to simulate loaded filter(d) Ambient temperature at −20 and + 40 °C(e) Line voltage: 105 Vac to 125 Vac | Sec. 7.4.1.Sec. 7.4.2.Sec. 7.4.3.Sec. 7.4.5.Sec. 7.4.8.Sec. 7.4.15.1. |
| § 53.56 Barometric pressure effect test | Sample flow rate1. Mean2. Regulation3. Meas. accuracy4. CV accuracy5. Pressure meas. accuracy6. Proper operation. | 1. 16.67 ±5%, L/p;min2. 2%, max3. 2%, max4. 0.3% max5. 10 mm Hg | (a) 6-hour normal operational test(b) Normal conditions(c) Additional 55 mm Hg pressure drop to simulate loaded filter(d) Barometric pressure at 600 and 800 mm Hg | Sec. 7.4.1.Sec. 7.4.2.Sec. 7.4.3.Sec. 7.4.5.Sec. 7.4.9. |
| § 53.57 Filter temperature control test | 1. Filter temp. meas. accuracy2. Ambient temp. meas. accuracy3. Filter temp. control accuracy, sampling and non-sampling | 1. 2 °C2. 2 °C3. Not more than 5 °C above ambient temp. for more than 30 min | (a) 4-hour simulated solar radiation, sampling(b) 4-hour simulated solar radiation, non-sampling(c) Solar flux of 1000 ±50 W/m 2 | Sec. 7.4.8.Sec. 7.4.10.Sec. 7.4.11. |
| § 53.58 Field precision test | 1. Measurement precision2. Storage deposition test for sequential samplers | 1. Pj <2 µg/m 3 or RPj <5%2. 50 µg max. average weight gain/blank filter | (a) 3 collocated samplers at 1 site for at least 10 days(b) PM 2.5 conc. >3 µg/m 3(c) 24- or 48-hour samples(d) 5- or 10-day storage period for inactive stored filters | Sec. 5.1.Sec. 7.3.5.Sec. 8.Sec. 9.Sec. 10. |
The Following Requirement Is Applicable to Class I Candidate Equivalent Methods Only
§ 53.59 Aerosol transport test | Aerosol transport | 97%, min. for all channels. | Determine aerosol transport through any new or modified components with respect to the reference method sampler before the filter for each channel |
[72 FR 32208, June 12, 2007]