67 Pa. Code § 177.202 - Emission test equipment
(a)
Performance features of emission test equipment. Computerized
test systems are required for performing any emission measurement on subject
vehicles. The test equipment shall be certified to meet as applicable EPA
requirements, including those contained in 40 CFR Part 51 , Subpart S, Appendix
D (relating to steady-state short test equipment), which is adopted by
reference, or the performance standards of California BAR 97 as they apply to
the PA97 analyzer and Appendix A (relating to acceleration simulation mode:
Pennsylvania procedures, standards, equipment specifications and quality
control requirements). Newly acquired systems shall be subjected to acceptance
test procedures to ensure compliance with program specifications.
(1) Emission test equipment shall be capable
of testing subject vehicles and shall be updated as needed to accommodate new
technology vehicles as well as changes to the program.
(2) At a minimum, emission test equipment
shall be:
(i) Automated to the highest degree
commercially available to minimize the potential for intentional fraud or human
error, or both.
(ii) Secure from
tampering or abuse, or both.
(iii)
Based upon written specifications.
(iv) Capable of simultaneously sampling dual
exhaust vehicles.
(b)
Functional characteristics of
computerized test systems. The test system is composed of emission
measurement devices and other motor vehicle test equipment controlled by a
computer.
(1) The test system shall
automatically:
(i) Make pass/fail decisions
for all measurements.
(ii) Record
test data to an electronic medium.
(iii) Conduct regular self-testing of
recording accuracy.
(iv) Perform
electrical calibration and system integrity checks before each test, as
applicable.
(v) Initiate system
lockouts for:
(A) Tampering with security
aspects of the test system.
(B)
Failing to conduct or pass periodic calibration or leak checks.
(C) Failing to conduct or pass the constant
volume sampler flow rate check, if applicable.
(D) Failing to conduct or pass one or more of
the dynamometer checks, including coast-down, roll speed and roll distance,
power absorption capability and inertia weight selection checks, if
applicable.
(E) Failing to conduct
or pass the pressure monitoring device check, if applicable.
(F) Failing to conduct or pass the purge flow
metering system check, if applicable.
(G) Failing to have installed in the test
analyzer a full data recording medium or one that passes a cyclical redundancy
check.
(2) Test
systems shall include a real time data link to the Department computer or other
computers as specified by the Department.
(3) The test system shall insure accurate
data collection by limiting, cross-checking or confirming manual data
entry.
(c)
Test
equipment for acceleration simulation mode (ASM) emission testing.
Test equipment for ASM emission testing shall be as specified in Appendix A and
quality control regulations of this chapter.
(d)
One-speed idle test
equipment. One speed idle test equipment requirements for model years
1975-1980 shall be as specified in 40 CFR Part 51 , Subpart S, Appendix (D)(I)
which is adopted by reference.
(e)
Two-speed idle test equipment. Two-speed idle test equipment
for model years 1981 and newer shall be as specified in 40 CFR Part 51 ,
Subpart S, Appendix D which is adopted by reference or Appendix A, as
applicable.
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