氨水 含量检测标准

Soil and stream sediment—Determination of iodine content—Pressurized ammonia extraction inductively coupled plasma mass spectrometry

Coking wastewater—Determination of ammonia nitrogen content—Formaldehyde method

Determination of liquefied anhydrous ammonia - Part 2: Estimating of ammonia content

Plastics - Polyols for use in the production of polyurethan - Determination of water content

Determination of liquefied anhydrous ammonia - Part 3: Residue content - Gravimetric method

Determination of liquefied anhydrous ammonia - Part 4: Residue content - Titrimetric method

铁矿石 金属铁含量的测定 磺基水杨酸分光光度法

Chemical reagent - Ammonia solution

Determination of liquefied anhydrous ammonia - Part 6: Oil content - Gravimetric and infra-red methods

Ammonium hydroxide for industrial use

Determination of liquefied anhydrous ammonia - Part 7: Iron content - o-Phenathroline spectrophotometric method

Aqua-ammonia absorption refrigerating unit

Liquefied anhydrous ammonia—Estimating of ammonia content

纳米技术 水溶液中铜、锰、铬离子含量的测定 紫外-可见分光光度法

Methods for chemical analysis of tetraammineplatinum(Ⅱ) nitrate-Part 1:Determination of platinum content-Hydrazine hydrate reduction method