BB-A-106D
4. QUALITY ASSURANCE PROVISIONS
4.1 Inspection responsibility. The supplier is responsible for the performance of all inspection
requirements as specified herein. Except as otherwise specified, the supplier may utilize his own
or any other inspection facilities and services acceptable to the government. The government
reserves the right to perform any of the inspections set forth in the specification where such
inspections are deemed necessary to assure that supplies and services conform to prescribed
requirements.
4.1.1 Component and material inspection. The supplier is responsible for insuring that
components and materials used are manufactured, examined, and tested in accordance with
referenced specifications and standards. The supplier shall verify that the production facility will
produce acetylene that complies with the percent by volume (v/v) acetylene purity requirements
of 3.1 for the grade supplied. Current analytical records of acetylene production by the facility
may be used to perform the verification. The analytical records shall be considered current if
taken within 180 days preceding the date of contract or purchase order. When current analytical
records are not available, or in case of process upset or equipment malfunction which affects the
product purity, not less than one acetylene sample from the production facility shall be tested as
specified in 4.4.2.1 prior to starting or continuing production.
4.2 Quality conformance inspection.
4.2.1 Examination. Each filled cylinder shall be examined as specified in 4.3.1. Presence of
one or more defects shall be cause for rejection of the cylinder.
4.2.2 Tests.
4.2.2.1 Individual cylinder. Each filled cylinder shall be tested for leakage as specified in
4.3.2.3. Failure of the test shall be cause for rejection of the cylinder.
4.2.2.2 Samples (carbide process acetylene only). Samples selected from each lot of carbide
process acetylene shall be tested for phosphine/arsine and hydrogen sulfide as specified in
4.3.2.2. Sampling shall be from filled cylinders and shall be conducted in accordance with
ASQ Z1.4. A lot shall be considered to be all cylinders filled from the same source during a
consecutive 24-hour period. The acceptance quality limit (AQL) shall be as specified in the
contract (see 6.2).
4.3 Inspection procedure.
4.3.1 Examination. The filled acetylene cylinders shall be examined for the following defects:
a. Cylinder or valve not as specified in 3.2.
b. Cylinder maintenance not as specified in 3.3.
c. Capacity not as specified in 3.4.
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