| Specific Product Coverage | Philippine National Standard/s (PNS) | Enabling Law | Product Image |
| Black iron (BI) and hot-dipped zinccoated (galvanized) welded steel pipes |
Steel - Black and hot-dipped zinc coated (galvanized) longitudinally welded steel pipes (for ordinary use) – Specification
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Department Administrative Order (DAO) No. 19-16, Series of 2019 Supplemental Guidelines for the Implementation of DAO 19-16, Series of 2019
Supplemental Guidelines for the Implementation of DAO 19-16, Series of 2019.
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Philippine Standard Time