![Implementing Guidelines for the Issuance of PS Certification Mark License for Tubular Lampholders](https://bps.dti.gov.ph/components/com_edocman/assets/images/icons/32x32/pdf.png)
Implementing Guidelines for the Issuance of Philippine Standard (PS) Quality Certification Mark License for Lampholders for Tubular Fluorescent Lamps and Starterholders covered by PNS 42:1997, Lampholders for tubular fluorescent lamps and starterholders - Specification