Please, If any one can assist for these books ?

1- Pressure Change Measurement Testing Method (Book HP), - Supplement to Recommended Practice No. SNT-TC-1A (Q&A Books) - Leak Testing Methods
2- Supplement to Recommended Practice No. SNT-TC-1A (Q&A Book): Visual and Optical Testing Method (VT)


See More: Question and Answer books for VT and Leak Testing requested