Can an internal test use a standard's name if parts of its method were changed?

Can an internal test use a standard's name if parts of its method were changed?

A test that changed a standard's method is not a test to that standard, and the company does not present one as the other.

The results the company publishes come from outside laboratories. The company names the laboratory for each report it cites, with the report number and the standard where the report prints them. Those laboratories are LMS Technologies for the air-filtration testing, Intertek Building & Construction for UL 900 and ULC-S111, RST Rail System Testing for DIN 53438-3, and Product Safety Labs for the studies run under Good Laboratory Practice to US EPA Health Effects Test Guidelines. Where a laboratory modified a standard's method, its report says so, and the company repeats it. The Open University of Hong Kong, Test Report IRITS2020007030001R1, 7 June 2021, measured bacterial filtration efficiency on a spunlace nonwoven by a method modified from ASTM F2101:2019, after accelerated ageing to ASTM F1980-16 equivalent to five years at room temperature. A reader can see who ran each test and under what, and can ask for the report.

Source: The Open University of Hong Kong, Test Report IRITS2020007030001R1, 7 June 2021, method modified from ASTM F2101:2019; C-POLAR — Validation, https://cpolar.tech/validation/, and the reports named there: LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures, and Report 6847, ASHRAE 52.2 with Appendix J; Intertek Building & Construction Reports 105175501SAT-001, 104974202SAT-001, 105169484SAT-001, 106093268SAT-001 and 106079483SAT-001; RST Rail System Testing Reports P60-22-0003 and P60-24-0297; Product Safety Labs Studies 65321 to 65324. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.