Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 53, Subpt. E, Tbl. E-1 Table E-1 to Subpart E of Part 53—Summary of Test Requirements for Reference and Class I Equivalent Methods for PM 2.5 and PM 10-2.5

§ 53.52 Sample leak check test

Sampler leak check facility

External leakage: 80 mL/min, max

Controlled leak flow rate of 80 mL/ min

Sec. 7.4.6.

Internal leakage: 80 mL/min, max

§ 53.53 Base flow rate test

Sample flow rate

1. 16.67 ±5%, L/min

(a) 6-hour normal operational test plus flow rate cut-off test

Sec. 7.4.1.

1. Mean

2. 2%, max

(b) Normal conditions

Sec. 7.4.2.

2. Regulation

3. 2%, max

(c) Additional 55 mm Hg pressure drop to simulate loaded filter

Sec. 7.4.3.

3. Meas accuracy

4. 0.3% max

(d) Variable flow restriction used for cut-off test

Sec. 7.4.4.

4. CV accuracy

5. Flow rate cut-off if flow rate deviates more than 10% from design flow rate for >60 ±30 seconds

Sec. 7.4.5.

5. Cut-off

§ 53.54 Power interruption test

Sample flow rate

1. 16.67 ±5%, L/min

(a) 6-hour normal operational test

Sec. 7.4.1.

1. Mean

2. 2%, max

(b) Nominal conditions

Sec. 7.4.2.

2. Regulation

3. 2%, max

(c) Additional 55 mm Hg pressure drop to simulate loaded filter

Sec. 7.4.3.

3. Meas. accuracy

4. 0.3% max

(d) 6 power interruptions of various durations

Sec. 7.4.5.

4. CV accuracy

5. ±2 min if >60 seconds.

Sec. 7.4.12.

5. Occurrence time of power interruptions

6. ±20 seconds

Sec. 7.4.13.

6. Elapsed sample time

7. ±2%, max

Sec. 7.4.15.4.

7. Sample volume

Sec. 7.4.15.5.

§ 53.55 Temperature and line voltage test

Sample flow rate

1. 16.67 ±5%, L/min

(a) 6-hour normal operational test

Sec. 7.4.1.

1. Mean

2. 2%, max

(b) Normal conditions

Sec. 7.4.2.

2. Regulation

3. 2%, max

(c) Additional 55 mm Hg pressure drop to simulate loaded filter

Sec. 7.4.3.

3. Meas. accuracy

4. 0.3% max

(d) Ambient temperature at -20 and +40 °C

Sec. 7.4.5.

4. CV accuracy

5. 2 °C

(e) Line voltage: 105 Vac to 125 Vac

Sec. 7.4.8.

5. Temperature meas. accuracy

Sec. 7.4.15.1.

6. Proper operation.

§ 53.56 Barometric pressure effect test

Sample flow rate

1. 16.67 ±5%, L/min

(a) 6-hour normal operational test

Sec. 7.4.1.

1. Mean

2. 2%, max

(b) Normal conditions

Sec. 7.4.2.

2. Regulation

3. 2%, max

(c) Additional 55 mm Hg pressure drop to simulate loaded filter

Sec. 7.4.3.

3. Meas. accuracy

4. 0.3% max

(d) Barometric pressure at 600 and 800 mm Hg

Sec. 7.4.5.

4. CV accuracy

5. 10 mm Hg

Sec. 7.4.9.

5. Pressure meas. accuracy

6. Proper operation.

§ 53.57 Filter temperature control test

1. Filter temp. meas. accuracy

1. 2 °C

(a) 4-hour simulated solar radiation, sampling

Sec. 7.4.8.

2. Ambient temp. meas. accuracy

2. 2 °C

(b) 4-hour simulated solar radiation, non-sampling

Sec. 7.4.10.

3. Filter temp. control accuracy, sampling and non-sampling

3. Not more than 5 °C above ambient temp. for more than 30 min

(c) Solar flux of 1000 ±50 W/m²

Sec. 7.4.11.

§ 53.58 Field precision test

1. Measurement precision

1. P_j < 2 μg/m³ or RP_j < 5%

(a) 3 collocated samplers at 1 site for at least 10 days

Sec. 5.1.

2. Storage deposition test for sequential samplers

2. 50 μg max. average weight gain/blank filter

(b) PM_2.5 conc. > 3 μg/m³

Sec. 7.3.5.

(c) 24– or 48–hour samples

Sec. 8.

(d) 5– or 10–day storage period for inactive stored filters

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