国外标准

Designation: B209/B209M - 21 Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate11. Scopel.l This specification2 covers aluminum and aluminum-alloy flat sheet,coi...

Designation: B49 - 20 Standard Specification for Copper Rod for Electrical Purposes11. Scope@1.1 This specification covers the requirements for rod indiametcrs from Va in. to 1Ve in...

Designation: B545-13 Standard Specification for Electrodeposited Coatings of Tin11. Scope1.l This specification covers the requirements for electrode-posited (electroplated) coating...

Designation: C109/C109M - 20a Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using2-in."or [5o-mm] Cube Specimens)11. Scope@1.1 This test method covers d...

Designation: C114-18 Standard Test Methods for Chemical Analysis of Hydraulic Cement'1. Scope1.l These test methods cover the chemical analyses ofhydraulic cements.Any test methods ...

Designation: C127-15 Standard Test Method for Relative Density (Specific Gravity) and Absorption of CoarseAggregate11. Scope1.1 This test method covers the determination of relative...

Designation: C128-15 Standard Test Method for Relative Density (Specific Gravity) and Absorption of FineAggregate11.Scope1.1 This test method covers the determination of relativeden...

Designation: C131/C131M -14 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregateby Abrasion and lmpact in the Los Angeles Machine11. Scope*1.1 This test...

Designation: C136/C136M - 19 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates11. Scope1.1 This test method covers the determination of the particlesize distribu...

Designation: C140/C140M - 21 Standard Test Methods for Sampling and Testing Concrete Masonry Units and RelatedUnits11. Scope*1.1 These test methods provide various testing procedure...