HG/T 3449-2012
Chemical reagent-Methyl red
KS M 8063-2015(2020)
Methyl red
HG/T 3449-1999
Chemical reagent Methyl red
HG/T 5842\uff5e5844-2021
CID A-A-53836
PHENOL RED PH TEST TABLETS
GB/T 12029.3-1989
Determination of pH of sodium carboxymethylcellulose for detergents (Potentiometric method)
GB/T 2917-1982
Test methods for the thermal stability of polyvinyl chloride--Congo red method and pH method
UNE 30145:1960
ANALYSIS REAGENTS. METHYL RED.
I3A IT4.205-1984(R1995)
Photography (Chemicals) - 5-Methylbenzotriazole (reaffirmation and redesignation of ANSI PH4.205-1984)
CEN/TS 17403:2021
DIN CEN/TS 17403
Fertilizers - Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7.5 at 100 ¿C; German version CEN/TS
BS PD CEN/TS 17403:2021
Fertilizers. Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C