1.
The Characteristic Analysis of Precipitation and Forecast of pH Value in Acid Rain in Qingdao;
青岛市降水特征分析与酸雨pH值预测
2.
Prediction of Initial Corrosion Time of Steel-Bar Based on Predicting Concrete pH Value
基于混凝土pH值预测的钢筋初锈时间预测
3.
measuring method for acidity(ph) of textiles
纺织品ph值的测定
4.
methods for determination of ph of aqueous solutions
水溶液ph值的测定法
5.
determination of ph value of an aqueous suspension
水悬浮液ph值的测定
6.
Carbon black--Determination of pH value
GB/T3780.7-1996炭黑ph值的测定
7.
determination methods of total solids, ph and viscosity and judgement of degree of precure of compounded latices
合成胶乳的总固体含量、ph值和粘度测定法和预硫[固化]早熟化测定法
8.
The Research of the PH Predictive Control System in the Sewage Water Treatment;
污水处理中PH预测控制系统的研究
9.
Chemical reagent--General rules for the determination of pH
GB/T9724-1988化学试剂ph值测定通则
10.
Determination of the pH of adhesives
GB/T14518-1993胶粘剂的ph值测定
11.
Colour black--Determination of pH value
GB/T7045-1993色素炭黑ph值的测定
12.
Acetylene black--Determination of pH value
GB/T3781.4-1993乙炔炭黑ph值的测定
13.
Determination method of pH value for pesticides
GB/T1601-1993农药ph值的测定方法
14.
Method for determination of PH of wood
GB/T6043-1999木材ph值测定方法
15.
Methods for determination of pH in alundum powder
GB/T9489.9-1988刚玉粉ph值的测定方法
16.
testing method for surface ph of paper
纸和纸板表面ph值的测定法
17.
Test methods of wooden activated carbon-Determination of pH
木质活性炭试验方法 ph值的测定
18.
Determination of pH value for reactive dyes
GB/T2390-1980活性染料ph值的测定方法